仰卧起坐板是训练肌肉的上好器材，轻松仰卧起坐可训练腹部肌肉及大腿内侧各部位肌肉；
Sit-up board is the best fitness for exercise the muscle. The sit-up may exercise the muscle in abdomen and inside the thigh.
仰卧起坐板是训练肌肉的上好器材，轻松仰卧起坐可训练腹部肌肉及大腿内侧各部位肌肉；
Sit-up board is the best fitness for exercise the muscle. The sit-up may exercise the muscle in abdomen and inside the thigh.
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