Harvey L A, Batty J, Crosbie J, Poulter S, Herbert R D
School of Physiotherapy, University of Sydney, Lidcombe, New South Wales, Australia.
Arch Phys Med Rehabil. 2000 Oct;81(10):1340-7. doi: 10.1053/apmr.2000.9168.
To determine the effect of 4 weeks of 30 minutes of daily stretching on ankle mobility in patients with recent spinal cord injuries (SCIs).
Assessor-blinded randomized controlled trial.
Two spinal injury units in Sydney, Australia.
Consecutive sample of 14 recently injured patients with paraplegia and quadriplegia.
Treated ankles were stretched continuously into dorsiflexion with a torque of 7.5 N x m for 30 minutes each weekday for 4 weeks. Contralateral ankles received no stretches.
Passive torque-angle curves for both ankles were obtained at study commencement, then at weeks 2, 4, and 5 (ie, during, at the end of, and 1 week after the stretching program). Torque-angle measurements were obtained with the knee extended and flexed. Mean values for parameters (baseline angle, angle at 10 N x m, slope) describing the characteristics of the torque-angle curves were derived for each knee position. Changes from pretest to each subsequent test were calculated, as well as 95% confidence intervals (CIs) for differences in these changes between stretched and controlled ankles.
The stretching intervention did not significantly change any of the 3 parameters describing the torque-angle curves of the ankle in either knee position. At the beginning of the study, the mean (+/-SD) angles obtained with the application of a standardized torque with the knee extended for the control and stretch ankles were 105 degrees (+/- 10.4 degrees) and 106 degrees (+/- 9.8 degrees), respectively. After 4 weeks, these values were 106 degrees (+/- 10.6 degrees) and 107 degrees (+/- 10.6 degrees) (mean difference in change of angle = 0 degrees; 95% CI, -3.3 degrees to 3.3 degrees).
Thirty minutes of daily stretching for 4 weeks does not significantly change ankle mobility in recently injured patients with SCIs.
确定为期4周、每天30分钟的拉伸运动对近期脊髓损伤（SCI）患者踝关节活动度的影响。
评估者盲法随机对照试验。
澳大利亚悉尼的两个脊髓损伤病房。
14例近期截瘫和四肢瘫损伤患者的连续样本。
在每个工作日，将治疗侧踝关节持续拉伸至背屈，扭矩为7.5 N·m，每次30分钟，共4周。对侧踝关节不进行拉伸。
在研究开始时、第2周、第4周和第5周（即拉伸计划进行期间、结束时和结束后1周）获取双侧踝关节的被动扭矩-角度曲线。在膝关节伸展和屈曲状态下进行扭矩-角度测量。针对每个膝关节位置，得出描述扭矩-角度曲线特征的参数（基线角度、10 N·m时的角度、斜率）的平均值。计算从预测试到每个后续测试的变化，以及拉伸侧和对照侧踝关节这些变化差异的95%置信区间（CI）。
拉伸干预在两种膝关节位置下均未显著改变描述踝关节扭矩-角度曲线的3个参数中的任何一个。在研究开始时，对对照侧和拉伸侧踝关节施加标准化扭矩且膝关节伸展时获得的平均（±标准差）角度分别为105度（±10.4度）和106度（±9.8度）。4周后，这些值分别为106度（±10.6度）和107度（±10.6度）（角度变化的平均差异 = 0度；95% CI，-3.3度至3.3度）。
对于近期脊髓损伤患者，为期4周、每天30分钟的拉伸运动不会显著改变踝关节活动度。
