可以看見背部肌肉運動過程.
上升時呼氣, image 肌肉向內擠壓,
下降時吸氣, image 肌肉緩慢放鬆
這樣, 引體向上可以mindful
可以看見背部肌肉運動過程.
上升時呼氣, image 肌肉向內擠壓,
下降時吸氣, image 肌肉緩慢放鬆
這樣, 引體向上可以mindful
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