spinal flexion- extension exercise 脊椎曲伸运动
upper back extension exercise 释义上背部伸展操练
quadriceps extension exercise 股四头肌伸展练习
back extension exercise 背部伸张练习
leg extension exercise 伸膝运动
extreme back extension exercise 背部极度伸张练习
leg extension and exercise apparatus 腿伸展运动器
Functional extension and exercise rehabilitation 功能伸展与运动康复
extension exercise
扩展练习
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In contrast to D2 Flexion, the D2 Extension exercise with Thera-Band had the lowest levels of upper trapezius activation.
和D2屈曲做对比，赛乐阻力d2伸展练习对上束斜方肌的活化作用最小。
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