Favro Francesco, Roma Enrico, Gobbo Stefano, Bullo Valentina, Di Blasio Andrea, Cugusi Lucia, Bergamin Marco
Department of Medicine, University of Padova, Via Giustiniani, Padova, Italy.
Univ Lyon, UJM Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Saint-Etienne, France.
J Strength Cond Res. 2025 Mar 1;39(3):386-397. doi: 10.1519/JSC.0000000000005000. Epub 2024 Dec 31.
Favro, F, Roma, E, Gobbo, S, Bullo, V, Di Blasio, A, Cugusi, L, and Bergamin, M. The influence of resistance training on joint flexibility in healthy adults: A systematic review, meta-analysis, and meta-regression. J Strength Cond Res 39(3): 386-397, 2025-Joint flexibility is a key component of physical fitness. Despite the large body of evidence regarding the effectiveness of muscle stretching exercises, little is known about the effect of resistance training on flexibility. A systematic search was conducted on 9 academic search instruments; inclusion criteria were as follows: healthy adult participants (age ≥18 years); resistance training intervention (duration ≥4 weeks); at least one flexibility outcome. Risk of bias was assessed using the RoB-2 and ROBINS-I tools. A 3-level meta-analysis was conducted, with multiple outcomes nested within each study. A moderator analysis was conducted by fitting a meta-regression model. Significance level was set at p < 0.05. We included 36 studies (1,469 participants). None of the included papers resulted at a low risk of bias. The pooled effect size for resistance training on flexibility was g = 0.6325, with 95% CI: 0.4762 to 0.7888 ( p < 0.0001). There was a substantial amount of heterogeneity between studies. Exercise intensity was a significant moderator ( p < 0.0225, high vs low), based on 129 and unique effect sizes, and sex ( p = 0.0429). Activity level and age were nonsignificant moderators. Resistance training could be implemented as a strategy to improve joint flexibility, with high-intensity protocols resulting in a magnified effect. However, the high overall risk of bias and substantial heterogeneity limit our ability to draw definitive conclusions.
法夫罗，F、罗马，E、戈博，S、布洛，V、迪·布拉西奥，A、库古西，L和贝加明，M。阻力训练对健康成年人关节灵活性的影响：一项系统评价、荟萃分析和元回归分析。《力量与体能研究杂志》39(3): 386 - 397，2025年——关节灵活性是身体素质的关键组成部分。尽管有大量关于肌肉拉伸运动有效性的证据，但关于阻力训练对灵活性的影响却知之甚少。我们对9种学术检索工具进行了系统检索；纳入标准如下：健康成年参与者（年龄≥18岁）；阻力训练干预（持续时间≥4周）；至少一项灵活性结果。使用RoB - 2和ROBINS - I工具评估偏倚风险。进行了三级荟萃分析，每个研究中有多个结果嵌套。通过拟合元回归模型进行调节分析。显著性水平设定为p < 0.05。我们纳入了36项研究（1469名参与者）。纳入的论文均未显示出低偏倚风险。阻力训练对灵活性的合并效应量为g = 0.6325，95%置信区间：0.4762至0.7888（p < 0.0001）。研究之间存在大量异质性。基于129个独特效应量，运动强度是一个显著的调节因素（p < 0.0225，高强度与低强度），性别也是（p = 0.0429）。活动水平和年龄不是显著的调节因素。阻力训练可作为提高关节灵活性的一种策略来实施，高强度方案会产生更大的效果。然而，总体高偏倚风险和大量异质性限制了我们得出确定性结论的能力。
