Hamada Yuji, Okubo Yu, Hattori Hiroshi, Nazuka Takeshi, Kikuchi Yuto, Akasaka Kiyokazu
Graduate School of Medicine, Saitama Medical University, 981 Kawakado, Moroyama 350-0495, Japan.
Department of Rehabilitation, Kawagoe Clinic, Saitama Medical University, 7-21 Wakitahontyo, Moroyama 350-0495, Japan.
Healthcare (Basel). 2023 Feb 20;11(4):625. doi: 10.3390/healthcare11040625.
This study aimed to clarify the relationship between isokinetic trunk muscle strength and return to sporting activities in fresh cases of lumbar spondylolysis treated with conservative therapy. Patients included a total of ten men (age: 13.5 ± 1.7) who were instructed by their attending physicians to stop exercising and who met the eligibility criteria. Isokinetic trunk muscle strength was measured immediately after exercising for the first time (First) and one month (1M). Flexion and extension and maximum torque/body weight ratio were significantly lower First compared to 1M at all angular velocities ( < 0.05). Maximum torque generation time was significantly lower for First at 120°/s and 180°/s than at 1M ( < 0.05). Correlations with the number of days to return to sports competition were detected at 60°/s for maximum torque generation time ( < 0.05, = 0.65). Following conservative treatment for lumbar spondylolysis, it was considered necessary to focus on trunk flexion and extension muscle strength and contraction speed of trunk flexors at the beginning of the exercise period. It was suggested that trunk extension muscle strength in the extension range might be one of the critical factors for returning to sports.
本研究旨在阐明保守治疗的新鲜腰椎峡部裂病例中，等速躯干肌肉力量与恢复体育活动之间的关系。患者共有10名男性（年龄：13.5±1.7岁），他们被主治医生要求停止锻炼且符合入选标准。在首次锻炼后即刻（首次）和1个月（1M）时测量等速躯干肌肉力量。在所有角速度下，首次测量时的屈伸和最大扭矩/体重比均显著低于1M时（P<0.05）。在120°/秒和180°/秒时，首次测量的最大扭矩产生时间显著低于1M时（P<0.05）。在60°/秒时，最大扭矩产生时间与恢复体育比赛的天数存在相关性（P<0.05，r=0.65）。对于腰椎峡部裂患者，在保守治疗后，在运动开始阶段有必要关注躯干屈伸肌肉力量以及躯干屈肌的收缩速度。研究表明，伸展范围内的躯干伸展肌肉力量可能是恢复运动的关键因素之一。
