Speaking generally, your skeletal muscle fibers fall into two broad categories, Type I and Type II. Type I fibers commonly are called “slow-twitch,” Type II fibers usually are referred to as “fast-twitch,” and the colloquial monikers are pretty appropriate: the maximum contraction velocity of a slow-twitch fiber is significantly slower than that of a fast-twitch […]
Early this morning an article appeared in the New York Times, extolling the benefits of high-intensity interval training in light of new scientific findings suggesting that short, high-intensity interval workouts may boost cardiovascular fitness just as effectively as longer, more traditional cardio workouts. The studies upon which the NYT commentary is based can be found […]