Department of Kinesiology, Louisiana State University, USA.
J Physiother. 2011;57(3):173-8. doi: 10.1016/S1836-9553(11)70038-8.
Can passive static stretching lower blood glucose in an at-risk population?
Randomised, within-participant experimental study.
22 adults (17 males) either at increased risk of Type 2 diabetes or with Type 2 diabetes.
The participants reported to the laboratory 2hr after eating a meal, and drank 355ml of fruit juice (∼43g carbohydrate). Thirty minutes later, they underwent either a 40min passive static stretching regimen or a mock passive stretching regimen. Stretching consisted of six lower body and four upper body static passive stretches. For the mock stretches, the same positions were adopted, but no tension was applied to the musculature.
Blood glucose levels for both the stretching and mock stretching were analysed from a finger prick sample using a hand-held glucometer. Values were obtained at baseline (0min), during the regimen (20min), and after the regimen (40min) on both study days.
Compared to mock stretch, stretching resulted in a significantly greater drop in blood glucose at 20min (mean difference 28mg/dL, 95% CI 13 to 43; or 1.57mmol/L, 95% CI 0.72 to 2.39). This effect was also statistically significant at 40min (mean difference 24mg/dL, 95% CI 9 to 39; or 1.35mmol/L, 95% CI 0.50 to 2.17).
These results suggest that passive static stretching of the skeletal muscles may be an alternative to exercise to help lower blood glucose levels.
被动静态伸展运动是否会降低高危人群的血糖水平？
参与者内随机对照实验研究。
22 名成年人（17 名男性），要么有患 2 型糖尿病的风险，要么已经患有 2 型糖尿病。
参与者在餐后 2 小时报告实验室，并饮用 355 毫升果汁（约 43 克碳水化合物）。30 分钟后，他们要么进行 40 分钟的被动静态伸展运动，要么进行模拟被动伸展运动。伸展运动包括六个下肢和四个上肢的静态被动伸展。对于模拟伸展运动，采用相同的姿势，但不对肌肉施加张力。
使用手持血糖仪从手指刺样样本中分析伸展运动和模拟伸展运动的血糖水平。在研究日的 0 分钟（基线）、20 分钟（运动中）和 40 分钟（运动后）时分别获得值。
与模拟伸展运动相比，伸展运动在 20 分钟时显著降低了血糖（平均差异 28mg/dL，95%置信区间 13 至 43；或 1.57mmol/L，95%置信区间 0.72 至 2.39）。这一效果在 40 分钟时也具有统计学意义（平均差异 24mg/dL，95%置信区间 9 至 39；或 1.35mmol/L，95%置信区间 0.50 至 2.17）。
这些结果表明，骨骼肌肉的被动静态伸展运动可能是一种替代运动的方法，有助于降低血糖水平。
