加拿大魁北克研究团队开展的一项随机对照试验表明，远程实时视频训练与预录视频训练在缓解慢性腰痛方面效果相当1。该研究共纳入94名患者，随机分配至实时训练、预录训练或等待名单组，其中85名参与治疗方案，57名完成全程研究1。参与者平均年龄为48.4±12.5岁，包括36名女性1。试验从2020年4月进行至2024年7月1。
两种远程训练方法均显著降低了患者的疼痛强度1。与等待名单组相比，运动训练组疼痛强度显著下降（B=-1.94，95% CI [-2.81至-1.08]，p<0.001）1。实时训练与预录训练之间未见显著差异（B=0.25，95% CI [-0.70至1.20]，p=0.60）1。实时训练和预录训练的最小有效数需治疗分别为1.64人和1.85人1。三个小组的脱落率无显著差异1。
研究进一步发现，性别差异影响训练效果，女性从运动中获得的疼痛缓解较少（B=2.58，95% CI [0.44至4.67]，p=0.020）1。自觉整体健康状况的改善、身体活动的增加和步行速度的提高介导了远程运动训练对疼痛的影响1。
A randomized controlled trial conducted in Quebec, Canada evaluated two remote exercise training approaches for managing chronic low back pain.1 Ninety-four patients were randomly assigned to receive either live video training, pre-recorded video training, or placement on a waiting list, with treatment participants completing a 12-week multimodal exercise program delivered three times weekly for one hour per session.1 The study enrolled participants with an average age of 48.4±12.5 years, including 36 women, and ran from April 2020 through July 2024.1
Both remote training methods proved significantly more effective than the waiting list control for reducing pain intensity, with exercise training reducing pain scores by 1.94 points compared to the control group (95% CI [−2.81 to −1.08], p<0.001).1 However, live training and pre-recorded training demonstrated comparable results, with no statistically significant difference in pain reduction between the two formats (B=0.25, 95% CI [−0.70 to 1.20], p=0.60).1 The number needed to treat was 1.64 for live training and 1.85 for pre-recorded training, indicating both approaches exceeded the threshold for minimal clinically significant effect.1 Women experienced less pain relief from exercise compared to men, with a difference of 2.58 points (p=0.020).1 Of the 85 patients who received treatment, 57 completed the full study, with dropout rates similar across all three groups.1 Improvements in perceived overall health, increased physical activity, and enhanced walking speed appeared to mediate the pain-reduction effects of exercise training.1
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