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运动示范解说:站立式四头肌强化运动──先扶椅子辅助平衡,之后全身自然站直,双脚并排。随后可用前脚掌支撑身体站起,维持约五秒后即可放松,每日左右脚可重复十次。由于用前脚掌撑起身体时,四头肌必须用力收紧,故可锻鍊其力量。若想加强锻炼,可熟习上述动作后,再练习此动作:同样扶椅子站直,先提起单脚固定不动,之后将触地的脚呈弓形弯曲,并保持此动作五秒,然后才伸直脚
Sports Demonstration Commentary: Stretch quadriceps exercise ─ ─ first auxiliary chair balance, after the whole body naturally stand straight, feet side by side. Then the forefoot can be used to support the body stand up, to maintain about five seconds to relax, the daily left foot can be repeated ten times. As with the forefoot propped up the body, the quadriceps must be forced to tighten, it can be forged its strength. If you want to strengthen the exercise, you can familiarize yourself with the above action, and then practice this action: the same chair lift arm straight, first raised his foot fixed, and then touched the foot arch bow and keep this action for five seconds before Straight leg