J Phys Act Health. 2020 May 27;17(7):723-728. doi: 10.1123/jpah.2019-0408.
Musculoskeletal pain (MP) is common among health care professionals, including physical therapists (PTs). The physically demanding nature of their work might contribute to increase MP rates. Strength training has a positive effect on musculoskeletal health and MP. However, no studies have evaluated the association of strength training during leisure time on MP among PTs. This study aims to analyze the association between frequency and intensity of strength training during leisure time and MP in the back, neck-shoulder, and arm-hand among PTs.
Data on MP and intensity and frequency of strength training were obtained using a questionnaire responded by 1006 PTs. The odds for having lower level of MP as a function of intensity or frequency of the strength training were estimated using binary logistic regression.
High-intensity strength training showed strong associations with lower intensity of MP in neck-shoulder (odds ratio = 5.08; 95% confidence interval, 1.36-18.92), arm-hand (odds ratio = 5.22; 95% confidence interval, 1.11-24.51), and back (odds ratio = 5.22; 95% confidence interval, 1.41-19.28). However, frequency and lower intensities were not significantly associated with MP in any body part.
High-intensity strength training is strongly associated with lower levels of MP in arm-hand, neck-shoulder, and back, whereas no association was found with frequency or lower intensities.
肌肉骨骼疼痛（MP）在医疗保健专业人员中很常见，包括物理治疗师（PT）。他们工作的体力要求可能会导致 MP 发生率增加。力量训练对肌肉骨骼健康和 MP 有积极影响。然而，尚无研究评估闲暇时间进行力量训练与 PT 中 MP 的关系。本研究旨在分析闲暇时间力量训练的频率和强度与 PT 背部、颈部-肩部和手臂-手部 MP 之间的关系。
使用问卷收集了 1006 名 PT 关于 MP 以及力量训练强度和频率的数据。使用二元逻辑回归估计了作为力量训练强度或频率的函数，MP 水平较低的几率。
高强度力量训练与颈部-肩部（比值比 = 5.08；95%置信区间，1.36-18.92）、手臂-手部（比值比 = 5.22；95%置信区间，1.11-24.51）和背部（比值比 = 5.22；95%置信区间，1.41-19.28）的 MP 低强度呈强相关。然而，频率和较低的强度与任何身体部位的 MP 均无显著相关性。
高强度力量训练与手臂-手部、颈部-肩部和背部的 MP 低水平密切相关，而与频率或较低强度无关。
