Herrington Lee, Al-Sherhi Abdullah
Centre for Rehabilitation and Human Performance Research, University of Salford, Greater Manchester, United Kingdom.
J Orthop Sports Phys Ther. 2007 Apr;37(4):155-60. doi: 10.2519/jospt.2007.2433.
Randomized controlled trial, pretest-posttest design.
To compare the efficacy of non-weight-bearing single-joint quadriceps exercise (SJNWBE) versus weight-bearing multiple-joint quadriceps exercise (MJWBE) for individuals with patellofemoral pain syndrome (PFPS).
PFPS is a common ailment of the knee. Both weight-bearing and non-weight-bearing exercises are considered appropriate for strengthening the quadriceps, a key element in the treatment of this condition.
Forty-five male subjects with PFPS between 18 and 35 years of age were randomized into 1 of 3 groups. Group 1 (SJNWBE) performed knee extension exercises, group 2 (MJWBE) performed seated leg press exercises, and group 3 (control group) received no treatment. Subjective symptoms, knee extensor muscle strength, and functional performance were evaluated at the time of the initial examination and at the end of the 6-week treatment period.
Individuals in both exercise groups demonstrated a statistically significant decrease in pain and an increase in muscle strength and functional performance, as compared to the control group (P<.05). All measures showed no significant differences in outcome between the 2 exercise groups (P>.05).
This study demonstrates that both weight-bearing and non-weight-bearing quadriceps exercises can significantly improve subjective and clinical outcomes in patients with PFPS.
随机对照试验，前后测设计。
比较非负重单关节股四头肌锻炼（SJNWBE）与负重多关节股四头肌锻炼（MJWBE）对髌股疼痛综合征（PFPS）患者的疗效。
PFPS是膝关节的常见疾病。负重和非负重锻炼均被认为适合增强股四头肌，这是该疾病治疗的关键要素。
45名年龄在18至35岁之间的PFPS男性受试者被随机分为3组中的1组。第1组（SJNWBE）进行膝关节伸展锻炼，第2组（MJWBE）进行坐姿腿举锻炼，第3组（对照组）不接受治疗。在初次检查时和6周治疗期结束时评估主观症状、膝关节伸肌力量和功能表现。
与对照组相比，两个锻炼组的个体在疼痛方面均有统计学意义的显著降低，肌肉力量和功能表现均有所提高（P<.05）。所有测量结果显示两个锻炼组之间的结果无显著差异（P>.05）。
本研究表明，负重和非负重股四头肌锻炼均可显著改善PFPS患者的主观和临床结果。
