. A study published in Medicine & Science in Sports & Exercise found that the longer subjects walked at 70 per cent of maximal oxygen consumption, or VO2 max, the longer it took for their metabolic rates to return to their pre-exercise levels

to be faster than a thinner runner if the heavier runner has the necessary ingredients for better endurance: higher VO2 max, higher lactate threshold and better running economy. Genes play a huge role as well, as does experience. GGWell, sure, it

& Science in Sports & Exercise found that the longer subjects walked at 70 per cent of maximal oxygen consumption, or VO2 max, the longer it took for their metabolic rates to return to their pre-exercise levels. In another study, published in The Canadian

for a heavier runner to be faster than a thinner runner if the heavier runner has the necessary ingredients for better endurance: higher VO2 max, higher lactate threshold and better running economy. Genes play a huge role as well, as does experience

that resting metabolic rate can stay elevated for hours after a bout of intense exercise. A 1991 Norwegian study, for instance, showed that significant fat-burning was occurring for a full 15 hours after a 70-minute bout of intense exercise (70 per cent of VO2

boosts maximal aerobic capacity (VO2 max), essential to distance-running potential, because the less weight you carry around, the more miles per gallon you get from your oxygen. And losing a few pounds makes running easier, so you should be able