Researchers can precisely measure previously unquantifiable aspects of pitching—everything from the angular velocity of the arm at the shoulder joint to tension on the knees and elbows.
研究者可以精确地测量出先前无法量化的各种有关投球方面的数据——从肩关节部位手臂移
角度的速度，
膝盖和手肘的张力。
Researchers can precisely measure previously unquantifiable aspects of pitching—everything from the angular velocity of the arm at the shoulder joint to tension on the knees and elbows.
研究者可以精确地测量出先前无法量化的各种有关投球方面的数据——从肩关节部位手臂移角度的速度，膝盖和手肘的张力。
Periarthritis of shoulder joint can be called frozen shoulder also,is a kind of disease having no clear and organic pathologic change with shoulder ache and hypoactivity as characteristic.
肩周炎是以肩关节疼痛的和活障碍为特征的常见病。对肩周炎治疗的差异较大,其效果也不一致。
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