Showing posts with label intermittent fasting. Show all posts
Showing posts with label intermittent fasting. Show all posts

Thursday, May 17, 2012

Some more intermittent fasting research

via Science Daily
In a paper published May 17 in Cell Metabolism, scientists from Salk's Regulatory Biology Laboratory reported that mice limited to eating during an 8-hour period are healthier than mice that eat freely throughout the day, regardless of the quality and content of their diet. The study sought to determine whether obesity and metabolic diseases result from a high-fat diet or from disruption of metabolic cycles.

The abstract is at Time-Restricted Feeding without Reducing Caloric Intake Prevents Metabolic Diseases in Mice Fed a High-Fat Diet


Saturday, December 31, 2011

Chronic Cardio is healthy?

In our little paleosphere endurance exercise is usually characterised as a "bad" thing.  Mark Sission's Chronic Cardio post is the usual basis for all this, but there are other references too.  In general I agree with this view.  However sometimes other bits and pieces pop up that indicate a different viewpoint.  I saw this one the other day:

Autophagy-related and autophagy-regulatory genes are induced in human muscle after ultraendurance exercise

The purpose of this study was to evaluate whether ultra endurance exercise changes the mRNA levels of the autophagy-related and autophagy-regulatory genes. Eight men (44 ± 1 years, range: 38–50 years) took part in a 200-km running race. The average running time was 28 h 03 min ± 2 h 01 min (range: 22 h 15 min–35 h 04 min). A muscle sample was taken from the vastus lateralis 2 weeks prior to the race and 3 h after arrival. Gene expression was assessed by RT-qPCR. Transcript levels of autophagy-related genes were increased by 49% for ATG4b (P = 0.025), 57% for ATG12 (P = 0.013), 286% for Gabarapl1 (P = 0.008) and 103% for LC3b (P = 0.011). The lysosomal enzyme cathepsin L mRNA was upregulated by 123% (P = 0.003). Similarly, transcript levels of the autophagy-regulatory genes BNIP3 and BNIP3l were both increased by 113% (P = 0.031 and P = 0.007, respectively). Since upregulation of these genes has been related with an increased autophagic flux in various models, our results strongly suggest that autophagy is activated in response to ultra endurance exercise.

Autophagy is usually presented as a "good thing" - the self eating process by which cells clean themselves up, getting rid of waste products and some pathogens.  Often it is promoted by fasting and again in the paleo world it is one of the benefits that are claimed for intermittent fasting.  I've probably written about that in the past somewhere.

Anyway, this study seems to link it to ultraendurance exercise.....actually it is talking epigenetics as far as I can see, particular autophagy related genes being switched on.  I suppose this might make sense if the exercise has actually cause massive damage and the body is frantically trying to clear up and repair the mess.  Maybe not so positive.

Sunday, October 9, 2011

Impact of Calorie Restriction, Fasting etc on health

A new review has jsut been published looking at the ability of caloric restriction (CR) to improve multiple parameters of health and to extend lifespan.

The whole thing is available as a PDF.  I've not read it yet but if you are interested in the subject there might be material of use to you.

Impact of caloric and dietary restriction regimens on markers of health and longevity in humans and animals: A summary of available findings

Tuesday, July 12, 2011

Intermittent Fasting to prevent heart disease?

An interesting one for those of us with an interest in intermittent fasting

Alternate-day fasting reverses the age-associated hypertrophy phenotype in rat heart by influencing the ERK and PI3K signaling pathways.

 In this context, ........... ADF (alternate day fasting) , might help to reduce pathological hypertrophy stimuli and to rescue an important cardioprotective pathway, possibly opening new preventive and therapeutic perspectives in age-related heart failure.

Sunday, July 10, 2011

Maintaining muscle with age.....

This abstract looks interesting (and I know it is rats...and you really need to read the whole study....)

Benefits from calorie restriction while maintaining decent protein intake.  I wonder if they would get the same benefits from IF (intermittent fasting)?

Effect of fast dietary proteins on muscle protein synthesis rate and muscle strength in ad libitum-fed and energy-restricted old rats.

Tuesday, April 26, 2011

Fasting and cellular protection

For those of us with an interest in fasting - like the 2 Meal Solution for example -will find this interesting.  I've pointed in the past  (here and here) to studies that indicate that fasting might be a good tactic in caner treatment.

Fasting vs dietary restriction in cellular protection and cancer treatment: from model organisms to patients.

The dietary recommendation for cancer patients receiving chemotherapy, as described by the American Cancer Society, is to increase calorie and protein intake. Yet, in simple organisms, mice, and humans, fasting-no calorie intake-induces a wide range of changes associated with cellular protection, which would be difficult to achieve even with a cocktail of potent drugs. In mammals, the protective effect of fasting is mediated, in part, by an over 50% reduction in glucose and insulin-like growth factor 1 (IGF-I) levels. Because proto-oncogenes function as key negative regulators of the protective changes induced by fasting, cells expressing oncogenes, and therefore the great majority of cancer cells, should not respond to the protective signals generated by fasting, promoting the differential protection (differential stress resistance) of normal and cancer cells. Preliminary reports indicate that fasting for up to 5 days followed by a normal diet, may also protect patients against chemotherapy without causing chronic weight loss. By contrast, the long-term 20 to 40% restriction in calorie intake (dietary restriction, DR), whose effects on cancer progression have been studied extensively for decades, requires weeks-months to be effective, causes much more modest changes in glucose and/or IGF-I levels, and promotes chronic weight loss in both rodents and humans. In this study, we review the basic as well as clinical studies on fasting, cellular protection and chemotherapy resistance, and compare them to those on DR and cancer treatment. Although additional pre-clinical and clinical studies are necessary, fasting has the potential to be translated into effective clinical interventions for the protection of patients and the improvement of therapeutic index.Oncogene advance online publication, 25 April 2011

Saturday, April 16, 2011

World's oldest man did intermittent fasting

While I think such long life is probably just a Black Swan, random thing, I thought this was interesting:

World's oldest man dies at 114 - Walter Breuning was born in 1896 and put his longevity down to eating just two meals a day and working for as long as he could

Sounds like the 2 meal solution works....

Monday, April 4, 2011

Monday, January 17, 2011

Breakfast doesn't matter - more for the intermittent fasting files

Spotted this one this morning:

Big Breakfast Generally Doesn't Help Weight Loss

Dr Volker Schusdziarra, from the Else-Kröner-Fresenius Center of Nutritional Medicine, conducted a study on over 300 people who were asked to keep a journal of what they usually ate. Within the group sometimes people ate a big breakfast, sometimes small, and sometimes skipped it all together.
Schusdziarra said that "the results of the study showed that people ate the same at lunch and dinner, regardless of what they had for breakfast," this means that a big breakfast (on average 400kcal greater than a small breakfast) resulted in a total increase in calories eaten over the day of about 400kcal. The only difference seen was the skipping of a mid morning snack when someone ate a really big breakfast, however this was not enough to offset the extra calories they had already eaten.



 Interesting stuff....but nothing new.  Time to check out Leangains or the 2 Meal Solution.... Mike's 2 Meal Solution was reviewed here and goes through a lot of research like this to explode a lot of myths about fasting.









There is a preview of the book below:

Thursday, December 9, 2010

Hormesis - mild stressors are good for you

This is from wikipedia:

Hormesis (from Greek hórmēsis "rapid motion, eagerness," from ancient Greek hormáein "to set in motion, impel, urge on") is the term for generally-favorable biological responses to low exposures to toxins and other stressors. A pollutant or toxin showing hormesis thus has the opposite effect in small doses as in large doses. A related concept is Mithridatism, which refers to the willful exposure to toxins in an attempt to develop immunity against them.

Favourable responses to stressors.  That is interesting.  One of the things that Erwan talked about this weekend was the benefit of occaisional hardship or challenge, for example exposure to cold or missing a meal (intermittent fasting anyone?)  I've had stuff up here before about cold showers.

I thought of all this again when I saw this abstract.

Inflammatory modulation of exercise salience: using hormesis to return to a healthy lifestyle

The whole study is available as a pdf, but the gist of it is that mild stressors are good for you and control inflammation:

One general consequence of hormesis is upregulation of mitochondrial function and resistance to oxidative stress. Examples of hormetic factors include calorie restriction, extreme environmental temperatures, physical activity and polyphenols.
Really interesting stuff

Wednesday, December 8, 2010

Benefits of fasted training?

Fasted training is an idea that pops up a lot among the paleo crowd.  Art DeVany is supportive for example.  Anyway, in that context I thought this was interesting.....as I read it you recover better if you train fasted.

Comments? 

Training in the fasted state facilitates re-activation of eEF2 activity during recovery from endurance exercise

Nutrition is an important co-factor in exercise-induced training adaptations in muscle. We compared the effect of 6 weeks endurance training (3 days/week, 1–2 h at 75% VO2peak) in either the fasted state (F; n = 10) or in the high carbohydrate state (CHO, n = 10), on Ca2+-dependent intramyocellular signalling in young male volunteers. Subjects in CHO received a carbohydrate-rich breakfast before each training session, as well as ingested carbohydrates during exercise. Before (pretest) and after (posttest) the training period, subjects performed a 2 h constant-load exercise bout (~70% of pretest VO2peak) while ingesting carbohydrates (1 g/kg h−1). A muscle biopsy was taken from m. vastus lateralis immediately before and after the test, and after 4 h of recovery. Compared with pretest, in the posttest basal eukaryotic elongation factor 2 (eEF2) phosphorylation was elevated in CHO (P < 0.05), but not in F. In the pretest, exercise increased the degree of eEF2 phosphorylation about twofold (P < 0.05), and values returned to baseline within the 4 h recovery period in each group. However, in the posttest dephosphorylation of eEF2 was negated after recovery in CHO, but not in F. Independent of the dietary condition training enhanced the basal phosphorylation status of Phospholamban at Thr17, 5′-AMP-activated protein kinase α (AMPKα), and Acetyl CoA carboxylase β (ACCβ), and abolished the exercise-induced increase of AMPKα and ACCβ (P < 0.05). In conclusion, training in the fasted state, compared with identical training with ample carbohydrate intake, facilitates post-exercise dephosphorylation of eEF2. This may contribute to rapid re-activation of muscle protein translation following endurance exercise.

Saturday, November 20, 2010

Patrick Diver - interview with an intelligent, strong, paleo cyclist!

I first came across Patrick Diver via the Body By Science Blog where he was commenting regularly and posting some videos of his training.  I was intrigued at a high level endurance athlete training with  short HIT style sessions.  That led to this interview.  I hope you enjoy it and get as much from it as I have.  There is some great material in here!

Patrick, normally in these interviews I start off by asking a little about your background: how you got into training and how you developed your particular approach.  Who are you?
Pushing Hard on the bike


Hi Chris, my name is Patrick Diver and I’ve had a personal training business, Greyhound
Fitness, for nearly 9 years now in Orlando, Florida. I also have a couple other websites including patrickdiver.com and fitnessgod.com. 

The latter, funny URL and all, has a new weblog I just started (also to be found at patrickdiver.blogspot.com).  

As far as philosophy is concerned, first and foremost, I’m an advocate of strength training. 

I know I will be labeled a “HIT guy," but I got my start in strength training a decade or so before I had ever heard of Arthur Jones or high intensity training.  My father was a math teacher and coach at my high school, so the football coaches more or less took me under their wing and taught me how to strength train.  

Although, I didn't play football, I was allowed to strength train with the team.   Because I was scrawny, I knew that if I was going to fit it, I would have to train pretty hard.   I adopted a high intensity  approach -- going to muscular failure from the start.

Our facility was a hardcore, makeshift gym under the stairs of the football stadium.  We used free weights, some universal machines, for pull downs and rows, and had a couple chain driven Nautilus leg machines.  Not to over-romanticize the environment, but it was dark and damp and everything someone like Keith Norris would love; super hot during the summer months, with only big metal fans offering a smidgen of respite from the heat, and icy cold during the winter months.  I’m from the Midwest -- St. Louis -- so we dealt with both temperature extremes.

Toward the tail end of high school, I started road racing bicycles; my interest in strength training really blossomed out of my desire to improve my strength during the winter off season months.

Your website notes that you are certified in SuperSlow, Nautilus, have a BS in Sports Medicine and Athletic Training and have been a highly competitive cyclist.  Can you tell me how you discovered this style of training – lets call it "HIT"?


When I was looking at getting into personal training as a business I sought advice.  I learned one of the top cyclists in our area, Gary Anger, ran a highly successful personal training business.  At the time, I had just resumed bicycle racing after taking a number of years off. When I learned Gary ran a personal training business, I asked if we could meet. 
Gary was really the one who introduced me to the concept of high intensity training.  The first time we got together he brought me through a workout.  To this day, at least in my mind, it remains the hardest workout I have ever done.  I was no stranger to intensity – especially when you consider that bicycle racing is all about intensity -- but the purity of effort required for his workout was really shocking.  Following that workout, it took me a good 10 minutes to get off the floor.  

So from there on, I was completely intrigued.  I spent the next few months reading anything I could get my hands on from experts like Darden, Hutchins, McGuff, and others.  As important, though, was my own (n = 1) experience.  I began incorporating HIT workouts within the framework of my training for cycling.  About seven months from that first HIT workout I accomplished the goal I had set for myself: winning the Florida Pro I/II criterium championship.  To date, my win is one of 44 state titles on which Gary has his imprint.
 
In addition to HIT, Gary taught me the business of personal training.  For those who know him, Gary is every bit as influential in the HIT community as the other big names like Mentzer, Jones, and McGuff  – he just keeps a lower profile.

Did you find Superslow / Nautilus / HIT consistent with the principles you were taught at university?
 
No, most of what I was taught in school revolved around “functional” exercises and therapeutic modalities.  The modalities have a role in the reduction of pain and inflammation, but the use of “functional” exercises instead of progressive strength based protocols is a therapeutic 'misstep' in my opinion.
 
The fact that I didn’t learn about Arthur Jones or his contributions to the strength and rehabilitation communities through his work with Nautilus Sports/Medical and MedX, speaks volumes.  Even a HIT cynic would have a hard time completely dismissing his body of work, especially with regard to low back rehabilitation.

At the very least, I think Nautilus Bulletin #1 and #2, as well as Ken’s SuperSlow Technical Manual should be required reading. When I was in school (graduated in 1995), strength training was barely covered, while the use of isokinetic machines, wobble boards, total gyms (!), and slide boards was the norm. And I went to a school (Southwest Missouri State, now just Missouri State) with very good instructors and a highly respected sports medicine and athletic training program. But we all know how it goes: instructors simply pass down what they have been taught themselves; most probably had no clue who Arthur Jones was either.

In my mind, physical rehab comes down to two things: reducing pain/inflammation and improving strength.  So for strength training not to be given due diligence is another  therapeutic ‘misstep.’ Furthermore, for it not to be the focus  of exercise physiology classes is somewhat mind blowing.  What is more important than maintaining strength and muscle mass as a person grows older?

Do you still ride the bike competitively?
Killer Triceps!


I have an on-again/off-again affair with the bicycle.  After I won the state championship I raced another half season and then took the next 7 years off.  This past May, I purchased a new bike and started training again -- well, if you can call it that -- my first group ride was a race I entered an hour after picking up my bike from the shop.  The amazing thing is right away I felt like I had never stopped; I was completely comfortable.  Unfortunately that feeling lasted about 60 seconds before reality sunk in and I was given a beat down.  Although my leg strength was high, in HIT vernacular, my skill conditioning was non-existent.  

What are the key factors of importance in training athletes? 

 


When it comes to building strength and metabolic fitness, I would say the most important thing is to motivate athletes to train hard.  It may seem obvious, but many athletes don’t train that hard. 

They are so skilled at their sport that they have never really put forth maximum effort in the gym.  Of course, they all think they are working hard, but I’m talking about really putting forth 100% effort. A good trainer can differentiate between someone giving maximum effort and someone huffing and puffing and creating all this commotion; but not really getting it done.  I’ve found that the stopwatch and workout card don’t lie -- if you’re 30 seconds down from your previous effort something is wrong: it could be recovery or it could be lack of  focus/effort.  

If you’ve read some of my previous interviews you might have noticed that an area that I am particularly interested in is the idea of “functional or so called sport specific training.  Do I take it that you agree with Doug McGuff, John Little and Luke Carlson who explained in their interviews that such an approach is, at best, misguided?  You need to strengthen the muscles in the most appropriate effective and efficient way…..and then learn the skills to apply that strength.
 
I completely agree with them.  Some athletes may put forth lackluster gym efforts (as mentioned above) partially because their energy resources are overtaxed.  When their strength and conditioning coach and head coach want to do conditioning drills, it may be too much.  The athlete may be constantly running at 80% or predisposed to injuries.  The coaches are then left scratching their heads wondering why their team lacked punch in the 4th quarter or why so many key players are out with injuries. 
 
In my opinion, a superior approach is to separate the two completely. A focused high intensity strength training protocol can produce similar or better strength gains while not monopolizing time or recovery resources better used practicing or resting.
It’s really pretty simple!


How would this apply to endurance activities such as cycling, where the mainstream trainers focus so much on so-called cardio – developing VO2 max etc?
 
The strength training is just an adjunct to all of the work being done on the bike.  The key is to balance the two so the strength work doesn’t interfere with the gains being made on the bike.  Good record keeping and listening to the athlete will help determine this balance. For most, a single strength training session lasting about 10 minutes every week or so is probably ideal.  Of course, this may need to be adjusted based on the athlete’s particular schedule.
 
Can HIT prepare you for competing in endurance sport?
 

Strengthening an athlete will only help their sports performance and buffer their resistance to injury.  HIT is great for this, but it does not replace sport specific endurance training. In fact, the overwhelming majority of clock time for the endurance athlete will be spent doing intervals and other sport specific training routines.
 
As an example, most cycling training manuals advocate strength training during the off-season. My call for once weekly HIT sessions should result in higher strength levels to be enjoyed season long, not just in the off-season.

Furthermore, I think coaches would be wise to look at all aspects of their traditional training programs and possibly cut back or weed out things that may be unnecessary, redundant, or done simply because "it's always been done that way." 

When I resumed cycling this past year, I didn't bother laying down a bunch of "base miles," even though every training manual would call for it -- especially after such a long layoff.  Instead, knowing my races (Pro I/II criteriums) generally last between 1-1.5 hours I concentrated on intervals, short and fast group rides, and training races.  The result?  Within 6 weeks I had finished a Pro I/II race in the pack, and by season end I was back at the front contesting race finishes.

A typical week would look like this:

  • Monday:   Off
  • Tuesday:  Intervals on bike + short HIT session
  • Wednesday:  Training Race
  • Thursday: Off
  • Friday: Off
  • Saturday:  Race
  • Sunday:  2.5 hour fast group ride

Total weekly hours: 5-7

Should it?  Are endurance sports healthy?
 
Probably not -- although Dr.Kurt Harris reached this conclusion from a technical perspective, I have always had a hard time believing there was anything particularly healthy about blasting my heart rate for an hour and a half during one of my races.  

Of course, that says nothing of the potential long-term joint risk runners face...or in the case of cyclists, the very real possibility of being sideswiped by a car or truck.    

So no, I can’t imagine endurance sports are healthy.  That said, I wouldn’t necessarily discourage anyone from competing.  I race bicycles because a) I like to compete and b) my phenotype is somewhat designed to do well pedaling a bicycle (I say somewhat, because I am not in the same leagues as a professional like Andy Schleck or Phillipe Gilbert).  
 
If I was as big as Orlando’s Dwight Howard, I would be playing basketball.

At the end of the day, I think people should be aware of the inherent risks and then make up their own mind.  

I strongly disagree when a well meaning doctor or co-worker suggests someone take up an endurance sport to get in better shape.  I believe strength training is a much safer and beneficial choice.

Where do you stand with respect to diet?
 
I have had the most client success generally working within the paleo/ancestral dietary framework.  Clients eager to make changes adapt to it pretty well and the recidivism is generally pretty low.  Of course, not everybody is ready to make the necessary changes, but I keep spoon feeding clients articles, blog posts, podcasts, and books to educate them as much as possible.

I’m a fan of Mark Sisson’s The Primal Blueprint, as well as Nora Gedgaudas’s Primal Body, Primal Mind book (and podcasts).  Robb Wolf’s The Paleo Solution is perhaps my favorite book to introduce the paleo/ancestral nutritional concepts.  I also recommend his podcasts (seriously, any podcast able to work in commentary on the movie, Rad, receives an automatic thumbs up from me).     
Working with clients and food is quite challenging.  It many ways it resembles trying to put together a puzzle that may or may not be missing pieces.  The client really has to be committed and open to the idea that it may not be a quick fix.  For example, if there are thyroid/adrenal issues, sleep/recovery issues, or anxiety/depression issues it may take awhile to uncover potential weight loss road blocks.

I am also open to new ideas as well as opposing views.  Recently, I’ve been experimenting with Martin Berkhan's Lean Gains approach and find it very interesting. From my observation, many naturally lean people tend to naturally swing to an IF approach.

From an athletic viewpoint, I maintained a relativel low carb, mid protein, and high fat diet this past cycling season.  Since I had been eating that way prior to getting back into cycling, I really didn't notice much difference -- although I did up my carb intake a little bit, usually in the form of white rice.  I would say my experience echoed what Jamie Scott wrote about in his excellent High Fat Diet for Cyclists series.

Do you think those of us with an interest in training – even or especially HIT type people – spend too much time obsessing over their training, reading the blogs and forums, analysing the details not the principles?



Some do perhaps.  Personally, I am intrigued by the details but know none of it matters without possessing a solid exercise foundation.  In my mind that foundation consists of two things: exercise intensity and consistency. 

I still think sometimes that I am looking for the magic routine!  I noticed that when John Little introduced his Max Pyramid Protocol – we all jumped on it like it was the secret to success for a while.


Of course, that is only natural -- especially for enthusiasts or those engaged in their own n = 1 experimentation.  To expand on what I said above, however, my personal n =1 includes:

  1. Have trained once, twice, and three times a week.
  2. Have used free weights, Nautilus (3 or 4 versions including retro-fitted SS cams), Superslow Systems (including the Linear Spine), MedX, Cybex, and many others.
  3. Have used many protocols including traditional Superslow, 5/5, 3/3, on-counting, single sets, multiple sets, supersets, rest pause, pyramids, time static contractions and deep inroad techniques. 

    Personally, none of this stuff made much of a difference with me.  Record keeping shows I achieved the same results training once a week as three times a week.  Records also show whether I used free weights, machines, or fancy in-roading techniques, the results were the same.  If I have a preference for machines it comes from a practicality and safety standpoint. 



    Again, the most important factors still come down to the desire and ability to train with great intensity and consistency.  In fact, since high school, there has not been a period longer than 3 months where I have not worked out on a regular basis. 

    So as Fred Fornicola mentioned in his interview each of these protocols represent additional "tools in the toolbox," but none of them will make up for poor or inconsistent effort.

    In my opinion, if you keep to the basics of exercise intensity and consistency and place your remaining focus on getting your diet and sleep schedule nailed, you will see your best results. 



    Why is there so much hate directed towards High Intensity Training?  After I posted my interviews of Doug McGuff and John Little I saw my blog get described on one forum as “HIT cock sucking”….


    It reminds me of the famous quote from Bill Cosby, "I don't know the key to success, but the key to failure is trying to please everyone all the time."

    There are some people that are just not ever going to be on board with HIT.  I'm perfectly okay with their choice.  The reality is for many people physical training represents something much greater than improving their physical condition.  The gym, particularly for people in their 20's, can be a home away from home, a social club, or a simply a place to hang out.  So if someone comes along and challenges their perception of exercise and says, "Hey, there is no reason to hang out in the gym all day," it is understood that they might get defensive.


    There is no doubt the tone of some of the more prominent HIT authors like Jones and Hutchins turns some people off. Someone like McGuff represents the antithetical approach, but even he gets attacked.

    Like I said, I'm not really interested in converting any of these anonymous internet types.  Nor am I going to argue with a power lifter at the gym.  I have over 10 years of experience working out in those environments, know firsthand what it is like, and can even appreciate
    it for what it is.

    For now though, there are enough people that need and appreciate my brand of strength training for me to focus on.   



    One thing that I notice with HIT style training is that is all seems very serious! This catches me a little.  Those into “functional training” look like they are having fun  (e.g. the MovNat guy)!  Movement, skill based movement, is often just joyous!  Jumping rolling, fighting, climbing.  How do we balance the need for proper training with the fact that movement is fun and exciting! 




    HIT purists, especially those waving the Superslow flag, would argue that exercise is not supposed to be fun, and that everything under the "functional training" umbrella is better classified as "recreation." To really understand this argument it helps to have a read the chapter on Exercise versus Recreation in the Superslow technical manual.   

    To summarize:  many activities that are commonly  labelled "exercise," say cycling, for example, do not provide the stimulation needed to result in an enhancement of total body conditioning. 

    Of course, arguments like those end up pissing off a lot of cyclists or whoever that say, "How dare you say I am not exercising!"

    My take on it goes like this:  do a HIT session once a week to cover your bases, and then go jump, roll, fight, climb, cycle or whatever else that seems like fun to you. 



    Do you see a role for prehab  / rehab exercises?  For example If you read the blogs of some trainers they make much of shoulder work (YWLT moves, face pulls, external rotation work, stretching  etc.)  Others go into detail on joint mobility as a panacea for all sorts of problems.   Is this just a diversion or is there a point to it?


    It all depends on if these trainers are getting results. 

    Even then it's difficult to determine if the improvement in mobility or pain relief is resultant of the exercises, a reduction in activity, or some other factor.   

    A cyclist's tan


    I am constantly working with clients with shoulder, knee, or other joint issues so I am open to learning new techniques and strategies, but believe an appreciation of the basics -- knowing when to back off or reduce workload -- is sometimes just as important. 



    Much of my training is often done at home – commercial gyms are not convenient and it is often difficult  to get a decent session in with people hogging  machines or chatting.  All I really have at home are dumbbells.   What scope is there for training productively with only callisthenics and dumbbells? (Recently I’ve been experimenting with static contractions)



    With Moment Arm Exercise by Bill DeSimone and Fred Fornicola's book, Dumbbell Training for Strength and Fitness, amongst others, there is no shortage of great resources available to home workout enthusiasts.

    That said, information is often not the limiting factor -- but a lack of commitment and consistency.  I am all for people doing what works best for them as long as it represents something they can do with long term consistency. 
     
    For some people that means working out by themselves at home, whereas others simply won't do it unless they have a personal trainer standing over them.  

    The key is to figure out which category you fall under!

    Finally, I know that there are a lot of people who read this blog who are not particularly gifted athletes – just average guys with jobs, worries and family responsibilities.  What are the key things that they need to know as they try to integrate some training into their busy lives?



    The majority of my clients fall under this category -- just average men or women with stressful jobs, worries, and family responsibilities.  The time advantage of HIT is generally what attracts them. I have clients that have been with me 6-8 years because they know they can come in once or twice a week, blast out a workout, and be on with their lives.  

    For years I have been trumpeting the benefits of this exercise approach because most people cite 'lack of time' as their biggest reason for not being in shape.  Well here you go; problem solved.  What is surprising to me is why some of the big box gyms don't offer HIT programs alongside their menu of programs like spin classes, kickboxing, and regular personal training.  The market is there, it just needs to be cultivated.

    In summary, though, the key for most people is to figure out a program that can fit in their schedule -- even if it's just once a week -- and  make the mental  commitment to stick with it. 

    From there it is simply a matter of one thing, which coincidentally just happens to be the title of my first blog post: Do it.  

    There is no other way.


    Patrick - thanks so much for taking the time to do this interview and for putting so much time into drafting some very full responses to my questions.  There is some excellent material in here.  All the best for your future training and business.

    Thursday, October 28, 2010

    The 2 Meal Solution - Review

    Mike O'Donnel has been around the internet for a while writing about several things but particularly Intermittent Fasting.   A couple of years ago I bought his book - The IF Life - and enjoyed it very much as a good accessible introduction to the science and practice of intermittent fasting.

    He has spent a lot of time recently updating his book.  It is now called The 2 Meal Solution.  As a previous customer I got a free update.

    It is really a totally new book and I would really recommend that you check it our - definitely worth the money.

    What I like about the book is that it doesn't make IF the solution to all your problems - it is clear that there are times when it might not be a good idea.  Like Robb Wolf it emphasises that sometimes IF cold be an additional stressor that you don't need.  The idea of 2 meals is also a nice take on IF, stressing the eating not the fasting.

    The historical quotes are interesting too, putting a case forward that in many ways IF was the basic way of eating for most of history in that breakfast was simply not eaten, so that there was always an extended fasting period between the evening meal and the breaking of the fast at lunchtime or later.

    While not explicitly paleo, Mike does recommend getting off wheat and dairy - a clean diet includes his guidance:

    • Limit/eliminate all Wheat and Dairy (top gut allergens)

    There are also elements of Leangains with Mike explaining that there might be a role for post workout carbs, but he is not that prescriptive.   For the science you might still want to check out Eat Stop Eat, but Mike does address most of it here.

    I also like his chapter on stress.  The role of sleep and avoiding chronic stress has become more and more important to me recently.  To limit stress , Mike gets close to a real minimalism approach at times - maybe like me he has been spending lots of time at mnmlist.

    The treatment of exercise is useful too:  have a short intense session and then recover before the next one.

    Anyway, I check out the book - I like its style and content.  It is a pdf book, which sometimes is difficult ot read, but I have downlowded it to my new iPhone and it is a simple way to read.

    Tuesday, October 5, 2010

    For satiety eat more protein but not necessarily more often

    interesting.....

    The Effects of Consuming Frequent, Higher Protein Meals on Appetite and Satiety During Weight Loss in Overweight/Obese Men

    The purpose of this study was to determine the effects of dietary protein and eating frequency on perceived appetite and satiety during weight loss. A total of 27 overweight/obese men (age 47 ± 3 years; BMI 31.5 ± 0.7 kg/m2) were randomized to groups that consumed an energy-restriction diet (i.e., 750 kcal/day below daily energy need) as either higher protein (HP, 25% of energy as protein, n = 14) or normal protein (NP, 14% of energy as protein, n = 13) for 12 weeks. Beginning on week 7, the participants consumed their respective diets as either 3 eating occasions/day (3-EO; every 5 h) or 6 eating occasions/day (6-EO; every 2 h), in randomized order, for 3 consecutive days.

    Indexes of appetite and satiety were assessed every waking hour on the third day of each pattern. Daily hunger, desire to eat, and preoccupation with thoughts of food were not different between groups. The HP group experienced greater fullness throughout the day vs. NP (511 ± 56 vs. 243 ± 54 mm · 15 h; P < 0.005). When compared to NP, the HP group experienced lower late-night desire to eat (13 ± 4 vs. 27 ± 4 mm, P < 0.01) and preoccupation with thoughts of food (8 ± 4 vs. 21 ± 4 mm; P < 0.01). Within groups, the 3 vs. 6-EO patterns did not influence daily hunger, fullness, desire to eat, or preoccupation with thoughts of food. The 3-EO pattern led to greater evening and late-night fullness vs. 6-EO but only within the HP group (P < 0.005).

    Collectively, these data support the consumption of HP intake, but not greater eating frequency, for improved appetite control and satiety in overweight/obese men during energy restriction-induced weight loss.

    Tuesday, July 27, 2010

    Intermittent Fasting Joke

    (apologies for any offense to the Irish).

    Here is one for Brad Pilon

    Nice joke on Intermittent Fasting:

    An Irishman was very overweight, and so his doctor put him on a diet.

    "I want you to eat regularly for 2 days, then skip a day, and repeat this procedure for 2 weeks. The next time I see you, you should have lost at least 5 pounds.

    When the Irishman returned, he shocked the doctor by having lost nearly 60lbs!

    "Why, that's amazing!" the doctor said, "Did you follow my instructions?"

    The Irishman nodded..."I'll tell you though, by jaesuz, I t'aut I were going to drop dead on dat 3rd day."

    "From the hunger, you mean?" asked the doctor.

    "No, from all the bloody skippin"

    Thursday, July 1, 2010

    Fasting and cholesterol.....

    Now I don't think cholesterol is evil...in fact I am a fan....but spotted this the other day.

    I have not had much up here about intermittent fasting / IF for a while. (For those interested I like both Brad Pilon and Martin Berkhan's approaches). Anyway, this report indicates that fasting prompts an enzyme that turns off the body's generation of fats and cholesterol.

    As I said I don't think dietary cholesterol is a problem, and I'd disagree with some of the stuff in the article about a high fat diet, but this is an interesting finding for those who practice intermittent fasting.

    When Food Intake Stops, Enzyme Turns Off Production of Fats, Cholesterol

    "This study is significant because it explains the signals that tell the body to burn fat in response to fasting or dieting," says David Sinclair, PhD, a professor of Pathology at Harvard Medical School (HMS) who helped discover the genes that code for sirtuins but was not involved with this MGH-led study. "This improved understanding could help treat and prevent metabolic diseases such as atherosclerosis and type 2 diabetes."

    Friday, April 16, 2010

    Fasting and balance

    The full study is available for this one, not just this abstract (which is below) but this is interesting - the effects of a 12 hour fast on physical abilities, specifically balance.

    What is not clear from either is whether the participants abstained from all liquids - even water. Anyway it seems that fasting diminished balance skills, which is a concern.

    Fasting is always easier if you are on a low carb diet and running on ketones, so I wonder if that would be an issue - the average person running on sugars needs constant topping up or else blood sugar issues can have effects. I wonder if hypoglycemia affects balance?

    In any case it is something to bear in mind if you are experimenting with intermittent fasting.

    The effects of dietary fasting on physical balance among healthy young women.

    ABSTRACT: BACKGROUND: The study examined the effects of dietary fasting on physical balance among young healthy women.
    METHODS: This study undertaken involving 22 young healthy women (age=22+/- 1.5) using a within subject counterbalanced 2-week crossover study design. Participants were asked to refrain from consuming any food or beverage for 12 hours prior to the fasting trial and to maintain their regular diet for the non-fasting trial. Measures included: a background questionnaire, 24-hour dietary recall, and functional reach and timed single-limb stances. RESULTS: Fasting resulted in significant declines in functional reach (p<0.01), and ability to balance in a single limb stance with eyes open, on both the dominant and non-dominant legs (p<0.01 and p<0.01, respectively), and with eyes closed on the dominant leg (p<0.01). CONCLUSIONS: The findings have implications for athletic performance in younger individuals as well as emphasizing the need for health education for young women to avoid skipping meals

    Wednesday, March 31, 2010

    Intermittent Fasting Works

    Here is an interesting study that indicates that Intermittent Fasting - as prescribed in Brad Pilon's Eat Stop Eat - works well for fat loss. ( Interviewed Brad Pilon here)

    There are some good thoughts on the study here from the researchers:

    The results defy the notion that fasting or dieting leads to gorging later; they also counter the idea that people have a genetically determined set point weight.

    However, the study suggests a new strategy for losing weight. Although chronic lifestyle changes (eating healthier foods and getting more exercise) are preferable ways to lose weight, Levitsky said, a weekly fast might be another way to go.

    Since it takes 10 to 14 days to recover the body tissue lost from a one-day fast, "Going without food for one day each week should produce a significant reduction in body weight over time," Levitsky said, now that we know that "fasting does not lead to overeating, and total recovery of body tissue does not occur within the week."

    A useful study for those interesting in the science behind IF



    One day of food restriction does not result in an increase in subsequent daily food intake in humans


    The purpose of this study was to examine the effect of one day of food restriction on subsequent spontaneous daily food intake and the recovery of body weight in humans. Twenty-two, non-restrained females were fed from Monday to Friday for four weeks using food prepared and measured in the Cornell Metabolic Laboratory. For the first week, all participants ate ad libitum. For each subsequent Monday, participants were divided into three groups in which either they (a) ate ad libitum, (b) were restricted to eating 1200 kcal (5040 kj), or (c) were fasted. From Tuesday until Friday participants ate ad libitum. During each session, all food consumed as well as body weight were measured.

    Body weight did not change following the day of ad libitum eating, but decreased significantly after the day of food restriction decreasing still further after fasting, indicating high compliance with study protocol. Although the loss in body weight was regained within four days, the recovery was accomplished without any increase in spontaneous food intake. Although no direct measurement of energy expenditure was made in this study, the results strongly suggest that decreases in metabolic rate play a more dominant role in the recovery of body weight following food restriction than the control of food intake.

    Friday, February 19, 2010

    Can you gain 8lbs in a single workout?


    Remember Brad Pilon of East Stop Eat? (I interviewed Brad here)

    Here he talks about how to add 8lbs of lean mass in one workout....



    Check out the video and register for a teleseminar (it's free) to find out how supplement companies make some outrageous claims.

    I like Brad's work. He really cuts through the hype


    • How many calories it REALLY takes to build muscle
    • Why HEIGHT has more to do with the amount of calories you need on a daily basis and how to use the "Rule of 7's and 3's" to determine how BIG you'll actually end up
    • A sneaky trick that all marketers use to get you to THINK that you're gaining more muscle than you really are... and how this same sneaky trick is SAPPING you out of your hard earned money in the process
    • How adding just 5 lbs of muscle in JUST THE RIGHT PLACES gives the illusion of a 25 lb increase in size... DRUG FREE...
    • The TRUTH on testimonials and "before and after"pics and how EVEN YOU can make yourself look super huge in 24 hours... without ever touching the inside of a gym or taking a "magic powder". This is the one secret the supplement companies DON'T WANT YOU TO KNOW
    I still think Brad's Eat Stop Eat is the best introduction to intermittent fasting out there.