Bokaeian Hamid Reza, Bakhtiary Amir Hoshang, Mirmohammadkhani Majid, Moghimi Jamileh
Neuromuscular Rehabilitation Research Centre, Rehabilitation Faculty, Semnan University of Medical Sciences, Semnan, Iran.
Neuromuscular Rehabilitation Research Centre, Rehabilitation Faculty, Semnan University of Medical Sciences, Semnan, Iran.
J Bodyw Mov Ther. 2018 Apr;22(2):528-533. doi: 10.1016/j.jbmt.2017.06.013. Epub 2017 Jun 21.
It is believed that Quadriceps strength training may reduce pain and improve functional activity in patients with knee osteoarthritis (OA). This improvement is generally attributed to an increase in quadriceps strength. This study investigated whether quadriceps muscle strength increases with decreasing pain, improving functional activity in knee OA. Twenty-four patients with knee OA participated in an 8-week treatment protocol including traditional physical therapy and strength training 3 sessions per week. Measurements were conducted before and after the intervention and included the peak torque of quadriceps muscle, pain by visual analogue scale (VAS), short Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and functional activity by the 2 minute walking test (2MWT) and time up & go test (TUGT). After the intervention, analysis of data illustrated that changes in quadriceps muscle strength correlated with changes in VAS (r = 0.310, p = 0.005), WOMAC (r < 0.278, p < 0.008) and 2MWT (r < 0.275, p < 0.009) significantly, although the correlation slope was negligible. No correlation was found between muscle strength and TUGT. However, the strength training significantly improved quadriceps muscle strength (p = 0.013), pain and functional activity (p = 0.000). This study showed that reduction in pain and improvement in functional activity occurs independently from an increase in quadriceps muscle strength in knee OA. It seems that increased quadriceps muscle strength may not be a cause of improvement in pain and functional activity in knee OA.
据信，股四头肌力量训练可能会减轻膝关节骨关节炎（OA）患者的疼痛并改善其功能活动。这种改善通常归因于股四头肌力量的增加。本研究调查了股四头肌力量是否会随着疼痛减轻而增加，从而改善膝关节OA的功能活动。24名膝关节OA患者参与了一项为期8周的治疗方案，包括传统物理治疗和每周3次的力量训练。在干预前后进行了测量，包括股四头肌的峰值扭矩、视觉模拟量表（VAS）疼痛评分、简短的西安大略和麦克马斯特大学骨关节炎指数（WOMAC）以及通过2分钟步行测试（2MWT）和起立行走测试（TUGT）评估的功能活动。干预后，数据分析表明，股四头肌力量的变化与VAS（r = 0.310，p = 0.005）、WOMAC（r < 0.278，p < 0.008）和2MWT（r < 0.275，p < 0.009）的变化显著相关，尽管相关斜率可忽略不计。未发现肌肉力量与TUGT之间存在相关性。然而，力量训练显著提高了股四头肌力量（p = 0.013）、疼痛程度和功能活动能力（p = 0.000）。本研究表明，膝关节OA患者疼痛减轻和功能活动改善与股四头肌力量增加无关。似乎股四头肌力量增加可能不是膝关节OA患者疼痛和功能活动改善的原因。
