Wed, Mar-21-07, 11:14
|
Registered Member
Posts: 1,216
|
|
Plan: Atkins
Stats: 185/180/165
BF:
Progress: 25%
|
|
Quote:
Originally Posted by Mutant
I don't think it is the low-carb diet per say, but rather the type of exercise. "Long and Slow" cardio and extreme endurace events to a greater degree push the wrong hormonal profile for one; high cortisone and low growth hormone and testosteron, while heavy weighlifting and HIIT type exercise pushes the opposite hormonal profile, low cortisone and high growth hormone and testosterone. The result is for athletes that may be consuming the same calories, marathoners will be dissapated, scrawny and have significant body fat percentages compared to a sprinter that will be heavily muscled and low body fat percentage. Also, there are very significant differences on how 'fat' is used as fuel, the end result being that "long and slow" tend to retain fat mass and HIIT tend to burn fat mass.
|
\
There was a study funded by Runners World. Two marathon runners of similar ability and body mass each ran a marathon on a treadmill. A marathon is a 26.2 mile race. One ran it in 3 hours, the other in 4 hours. Both runners were hooked up to gizmos that recorded what percentage of calories were burned from fat, protein and glycogen. They burned the exact number of calories during the marathons. But the slower runner burned something like 85% of the calories from fat.
Members of this list love to crow over the idea that we evolved into meat eaters. If so, we also evolved into runners. Running is the best exercise for general health. You don't need a gym membership, you don't need expensive equipment, just some shoes and sunscreen.
I've done over 30 marathons, two dozen 50 mile races, three 24-hour races and one 100-mile race. Those 'scrawny' runners are a tough bunch, running in all weather, running with blisters and injuries. My guess is they're generally healthier than those bloated iron-pumpers I see at the gym.
|