varied, low-fat diet. Cross-train to prevent injury and burnout.These are simple concepts, well within my grasp (and yours). When we follow them, life is good. There has, though, always been one more key principle: avoid the demon lactic acid
. Now you're falling more dramatically, because your front foot lands below the rear foot. This increases the stretch on the quads, and also requires them to contract more forcefully to prevent that spreadeagle.No one has studied downhill running, a
