Abstract：
BACKGROUND: To evaluate whether the knee adduction moment (KAM) could be reduced by a short instruction in the Draw-in (DI) maneuver in healthy adults, and whether knee joint function would improve with a longer DI gait intervention in patients with knee osteoarthritis (OA).
METHODS: In Study 1, healthy adults received 10 minutes supervised instruction in DI gait in and then practiced the gait independently for 10 minutes. Three-dimensional motion analysis measurement was performed in each phase. In Study 2, patients with OA performed a 20-minute DI gait intervention daily for 6 weeks. At baseline and after 6 weeks, knee pain, the Knee injury and Osteoarthritis Outcome Score, the MOS 8 item Short-Form Health Survey, thoracic kyphosis angle, knee joint range of motion, knee extension muscle strength, hip abduction muscle strength, and activity level were evaluated.
RESULTS: In Study 1, the DI gait to decrease KAM could be learning following only 10 minutes of instruction and 10 minutes of self-practice in healthy adults. In Study 2, knee pain was reduced by 19 % and the thoracic kyphosis angle was reduced by 2.6° after 6 weeks. No significant changes in other parameters were detected, and the implementation rate was 86 ± 14 %.
CONCLUSIONS: In healthy adults, DI gait instruction for 10 minutes of instruction and 10 minutes of self-practice reduced the KAM. In patients with knee OA, 20 minutes of DI gait per day for 6 weeks may reduce knee pain and thoracic kyphosis.
METHODS: In Study 1, healthy adults received 10 minutes supervised instruction in DI gait in and then practiced the gait independently for 10 minutes. Three-dimensional motion analysis measurement was performed in each phase. In Study 2, patients with OA performed a 20-minute DI gait intervention daily for 6 weeks. At baseline and after 6 weeks, knee pain, the Knee injury and Osteoarthritis Outcome Score, the MOS 8 item Short-Form Health Survey, thoracic kyphosis angle, knee joint range of motion, knee extension muscle strength, hip abduction muscle strength, and activity level were evaluated.
RESULTS: In Study 1, the DI gait to decrease KAM could be learning following only 10 minutes of instruction and 10 minutes of self-practice in healthy adults. In Study 2, knee pain was reduced by 19 % and the thoracic kyphosis angle was reduced by 2.6° after 6 weeks. No significant changes in other parameters were detected, and the implementation rate was 86 ± 14 %.
CONCLUSIONS: In healthy adults, DI gait instruction for 10 minutes of instruction and 10 minutes of self-practice reduced the KAM. In patients with knee OA, 20 minutes of DI gait per day for 6 weeks may reduce knee pain and thoracic kyphosis.
摘要：
背景：为了评估在健康成年人的吸引（DI）动作中是否可以通过简短的指导来减少膝盖内收力矩（KAM），以及膝关节骨性关节炎（OA）患者的DI步态干预是否会改善膝关节功能。
方法：在研究1中，健康成人在DI步态中接受10分钟的监督指导，然后独立练习步态10分钟。在每个阶段进行三维运动分析测量。在研究2中，OA患者每天进行20分钟的DI步态干预，持续6周。在基线和6周后，膝盖疼痛,膝关节损伤和骨关节炎结果评分，MOS8项目短期健康调查，胸椎后凸角度,膝关节的活动范围，膝盖伸展肌肉力量，髋部外展肌肉力量,和活动水平进行了评估。
结果：在研究1中，减少KAM的DI步态可能是在健康成年人仅10分钟的指导和10分钟的自我练习后学习。在研究2中，膝关节疼痛减少了19％，胸椎后凸角度在6周后减少了2.6°。未检测到其他参数的显著变化，执行率为86±14%。
结论：在健康成年人中，DI步态指导10分钟的指导和10分钟的自我练习降低了KAM。在膝关节OA患者中，每天20分钟的DI步态持续6周可以减轻膝盖疼痛和胸椎后凸。
方法：在研究1中，健康成人在DI步态中接受10分钟的监督指导，然后独立练习步态10分钟。在每个阶段进行三维运动分析测量。在研究2中，OA患者每天进行20分钟的DI步态干预，持续6周。在基线和6周后，膝盖疼痛,膝关节损伤和骨关节炎结果评分，MOS8项目短期健康调查，胸椎后凸角度,膝关节的活动范围，膝盖伸展肌肉力量，髋部外展肌肉力量,和活动水平进行了评估。
结果：在研究1中，减少KAM的DI步态可能是在健康成年人仅10分钟的指导和10分钟的自我练习后学习。在研究2中，膝关节疼痛减少了19％，胸椎后凸角度在6周后减少了2.6°。未检测到其他参数的显著变化，执行率为86±14%。
结论：在健康成年人中，DI步态指导10分钟的指导和10分钟的自我练习降低了KAM。在膝关节OA患者中，每天20分钟的DI步态持续6周可以减轻膝盖疼痛和胸椎后凸。
