打字时手腕姿势对腕管压力的影响。
Effect of wrist posture on carpal tunnel pressure while typing.
作者信息
Rempel David M, Keir Peter J, Bach Joel M
机构信息
Department of Medicine, University of California, San Francisco, California, USA.
出版信息
J Orthop Res. 2008 Sep;26(9):1269-73. doi: 10.1002/jor.20599.
Long weekly hours of keyboard use may lead to or aggravate carpal tunnel syndrome. The effects of typing on fluid pressure in the carpal tunnel, a possible mediator of carpal tunnel syndrome, are unknown. Twenty healthy subjects participated in a laboratory study to investigate the effects of typing at different wrist postures on carpal tunnel pressure of the right hand. Changes in wrist flexion/extension angle (p = 0.01) and radial/ulnar deviation angle (p = 0.03) independently altered carpal tunnel pressure; wrist deviations in extension or radial deviation were associated with an increase in pressure. The activity of typing independently elevated carpal tunnel pressure (p = 0.001) relative to the static hand held in the same posture. This information can guide the design and use of keyboards and workstations in order to minimize carpal tunnel pressure while typing. The findings may also be useful to clinicians and ergonomists in the management of patients with carpal tunnel syndrome who use a keyboard.
每周长时间使用键盘可能会导致或加重腕管综合征。打字对腕管内流体压力（腕管综合征的一个可能介导因素）的影响尚不清楚。20名健康受试者参与了一项实验室研究，以调查不同手腕姿势打字对右手腕管压力的影响。腕关节屈伸角度（p = 0.01）和桡尺偏斜角度（p = 0.03）的变化独立改变腕管压力；伸展或桡侧偏斜时的手腕偏差与压力增加有关。相对于保持相同姿势的静态手部，打字活动独立地升高了腕管压力（p = 0.001）。这些信息可以指导键盘和工作站的设计与使用，以便在打字时将腕管压力降至最低。这些发现对于治疗使用键盘的腕管综合征患者的临床医生和人体工程学专家可能也有用。
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