A lunge combined with an overhead press exercise on the Bosu Ball improves balance and coordination.
用头顶球的博苏弓步按锻炼提高相结合的平衡与协调。

Leaning your chest forward slightly, lunge backward with your left leg, bending your right knee 90 degrees.
胸部稍微向前倾斜, 左腿向后成弓步, 右膝弯曲90度。

The relationship between horizontal reaction force and vertical reaction force of lunge is significantly positive.
长刺动作得后腿推蹬水平力与垂直力达显著正相关。