ground reaction force

The classic and modern kettlebell styles have a marked difference in their trajectory, which may affect the ground reaction force and the weight shift.
You've probably seen those graphs of power outputs of various exercises before. Now science examines the clean, but in an effort to determine which way of measuring force is actually the best method.
It comes up often during workouts – just how much weight are you moving while performing a push-up? And what is a proper progression of push-up variations? Read on to find out.