Function: Train waist , abdomen joints and lower body , enhance flexibility , leg power and the cardiopulmonary function.

功能: 增强下肢肌肉力量, 提高人的心肺功能.

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Functions: Train waist , abdomen joints lower body , enhance their flexibility, leg power and the cardiopulmonary function.

功能: 锻炼腿部各关节及相关肌群, 增强心肺功能.

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