Aunt Rennin
20.57 - push-ups and planks are two body weight exercises that work your arms.
我一直想練手臂肌肉，但手邊沒有啞鈴。有人能推薦一些利用自身體重的運動方法嗎？
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評論 3
- Doug Salomon
Push ups are a great exercise. Isometric exercises, where you essentially provide your own resistance are also great. For example, press your palms together, hard, for 10 seconds. Rest and repeat.