Q: I’ve been using a drop on my last set, and I do speed reps on that lighter drop. It works great for finishing an exercise, but I’m wondering if I should do it on stretch-position movements, like stiff-legged deadlifts for hamstrings or overhead extensions for triceps? It seems like the proven anabolic effects of stretch with the fiber shock of speed reps would be an excellent mass combo.

A: X-celeration, or speed, sets are much more dangerous with stretch-position exercises because the target muscle is fully elongated. That said, we do use it from time to time, but not with a 1.5-second-per-rep tempo. It’s more like a 1/1 or even 1/2—lift in one second and lower in one or two seconds. [Read more…]