Mark Sisson’s Article here is excellent.
http://www.slowtwitch.com/mainheadings/features/health_doping_slowtwitch2.html
He opens with an excellent point.
“So it amazes me when guys in their 40s and 50s who are training for a marathon or Ironman suggest that doing so will keep them young. It won’t. You may feel like a stud now with your shaved legs and your magic marker biceps tattoos, but endurance training speeds up the aging process almost as fast as watching TV, drinking sodas and eating potato chips. Actually, in some cases, it speeds it up even faster…Humans were just not designed to work for extended periods of time at 80-90% VO2max. Our evolutionary blueprint, the last draft of which was completed well over 10,000 years ago, set us up as great slow-movers and occasional fast sprinters.”
I liked the evolutionary view of things and of course, I like things that are “in line” with the way I approach health and fitness.
A few summary points that I like to apply:
eliminate carbos that are not complex and only the amount that you really need stop using refined sugars like gels etc except when you really need them on long training maintain lean muscle mass (and thereby organ function) by doing things that your body is designed to do like high resistance training (weights) in short bursts keep the aerobic training at a really low intensity (I do this for most of the year…)
I can see the value of keeping insulin down:
“The requisite high intake of carbohydrates to provide fuel requires that an enormous amount of insulin be produced and circulated to help store it. Chronic high blood insulin levels promote inflammation. Anti-aging scientists will tell you that insulin is one of the best markers of longevity in all animals… that the less you produce (type 1 diabetics notwithstanding) the longer you live.”
While I am not going to the extreme of Mark and refraining from endurance training for half the year, I do have to say that applying a similar view at a macro level to my training, has allowed me to “slow down less” than my 40-44 age group competitors compared to when they were dusting me at the age of 28. In fact, aside from my pure running speed, applying some of the macro concepts that Mark speaks of, allows me to go faster.
Now I realize that there is an anti weight training mafia here at ST, but when I talk to most of the masters athletes at the front end of the field, we are all lifting weights almost 12 months a year. The younger naysayers might say that it is not optimum for pure triathlon performance, but it is good for our overall health to exercise a different energy system that will result in more lean muscle mass and over time better health is a good thing for getting faster.
Please read Mark’s article. It provides an excellent insight on a more balanced view of fitness.