Background Despite reported injury rates of up to 3 per 1000 hours exposure, there are no evidence-based prevention programmes in tennis. Purpose To evaluate the effectiveness of an e-health prevention programme for reducing tennis injury prevalence. Study design Two-arm, researcher-blinded randomised controlled trial. Methods Adult tennis players of all playing levels were randomised in an unsupervised programme lasting 12 weeks (TennisReady group or control group). The primary outcome was the overall injury prevalence over a 16-week period, measured at 2 weekly intervals with the Oslo Sports and Trauma Research Centre questionnaire. Estimates for the primary outcome and associated 95% CIs were obtained using generalised estimating equation models. Secondary outcome scores included prevalence of substantial injuries, overall incidence, adherence and time-loss injuries. Results A total of 579 (83%) (TennisReady n=286, control n=293) participants were included in the primary analysis. The mean injury prevalence was 37% (95% CI 33% to 42%) in the TennisReady vs 38% (95% CI 34% to 42%) in the control group (adjusted p-value 0.93). The prevalence of substantial injuries was 11% (95% CI 9% to 14%) in the TennisReady vs 12% (95% CI 9% to 15%) in the control group (p value of 0.79). Analysis of the secondary outcome scores showed no difference between groups. The mean prevalence rates between high (8%) and low (92%) adherent groups were 32% (95% CI 23% to 44%) and 37% (95% CI 33% to 42%), respectively (p value 0.36). Conclusion Providing an unsupervised e-health tennis-specific exercise programme did not reduce the injury rates and should not be implemented. Trial registration number NTR6443.

中文翻译：

---

电子健康网球特定伤害预防计划的有效性：成人休闲网球运动员的随机对照试验

背景 尽管报道的受伤率高达每 1000 小时暴露 3 次，但在网球方面没有循证预防计划。目的 评估电子健康预防计划对降低网球伤病率的有效性。研究设计 双臂研究人员盲法随机对照试验。方法 所有比赛水平的成年网球运动员都被随机分配到一个持续 12 周的无人监督计划中（网球准备组或对照组）。主要结果是 16 周内的总体损伤患病率，使用奥斯陆体育和创伤研究中心调查问卷每隔 2 周测量一次。主要结果和相关 95% CI 的估计值是使用广义估计方程模型获得的。次要结果评分包括严重损伤的发生率、总体发生率、依从性和时间损失伤害。结果 共有 579 (83%) 名参与者（TennisReady n=286，对照组 n=293）被纳入主要分析。TennisReady 组的平均损伤发生率为 37%（95% CI 33% 至 42%），而对照组为 38%（95% CI 34% 至 42%）（调整后的 p 值为 0.93）。TennisReady 组严重损伤的发生率为 11%（95% CI 9% 至 14%），而对照组为 12%（95% CI 9% 至 15%）（p 值为 0.79）。次要结果评分的分析显示组间没有差异。高 (8%) 和低 (92%) 依从性组之间的平均患病率分别为 32% (95% CI 23% 至 44%) 和 37% (95% CI 33% 至 42%)（p 值 0.36 ）。结论 提供无人监督的电子健康网球特定运动计划并不能降低受伤率，不应实施。