Sets: 3,Reps: 10
3组动作，每组重复10次
A: Stand with feet wide holding a medicine ball. Engage abs and swing ball overhead in preparation for slam.
A:两脚分开张大同时手托住健身球。腹肌用力同时将球举到头部以上，为接下来的猛击做准备。
B: Explosively slam medicine ball to the floor, throwing the ball down and lowering into a squat. Try to catch the ball as it bounces back up, extending legs. Immediately return to start.
B:猛地将健身球摔到地上，扔球的同时压低身体成蹲姿。试着在球向上弹起的时候接住它，伸展双腿。然后迅速回到开始的姿势。
