Understanding two different styles of the kettlebell swings
"Girevoy" Sport kettlebell swing. Note the fluid pendulum motion and relaxed nature.
Janda's lower cross syndrome. Hardstyle swinging definitely helps with that.
Loading the hamstrings with the hip hinge. Notice the vertical tibia and more horizontal torseo angle.
Having many other (and perhaps superior) methods for implementing explosive vertical squatting force such as barbell cleans and jump squats, the American kettlebell swing doesn't seem to do justice in this sense. The overhead arm motion simply reinforces shoulder involvement. From what I see, Crossfit has a way of making things full body for the sake of being full body (kipping pull-ups, Sumo deadlift-High pull and thrusters anyone?). With that said, the American style kettlebell swing still has great merit as a simple way to teach begniners how to develop explosive power. If you are unable to snatch and need some added upper body development, this style of swing may be just the one for you.
One style of Kettlebell swing which I don't recommend u try... oh Jillian Michaels, what to do with u?