BACKGROUND: There is no consensus about which training methods will give better early outcomes after total hip arthroplasty (THA). OBJECTIVE: To investigate the short-term effects of cross trainer exercise on physical function and walking ability following THA. METHODS: Fifty patients who underwentTHA were randomly allocated into two groups. The intervention program was started 3 days after surgery. The main physical function results were pain, hip range of motion, knee extensor strength, single-leg stance time, and walking performance test. In addition, the number of days of requiring to walk and the length of hospital stay were recorded. RESULTS: In the comparison between groups at discharge, the patients in the cross trainer group had significantly less hip pain while walking, improvement in knee extensor strength, increased single-leg stance time, as well as increased walking speed and stride length at discharge. The number of days required to walk and length of stay were also significantly lower in the intervention group. CONCLUSIONS: Conclusions: Cross trainer exercise commencing 3 days postoperatively improves physical function and walking ability after THA.

中文翻译：

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交叉训练对全髋关节置换术后运动功能和住院时间的影响：一项随机对照试验

背景：关于哪种训练方法可以在全髋关节置换术 (THA) 后提供更好的早期结果，目前还没有达成共识。目的：研究交叉训练器运动对 THA 后身体功能和行走能力的短期影响。方法：将 50 名接受 THA 的患者随机分为两组。干预计划在手术后 3 天开始。主要身体机能结果为疼痛、髋关节活动度、膝伸肌力、单腿站立时间和步行性能测试。此外，记录需要步行的天数和住院时间。结果：在出院时的组间比较中，交叉训练组患者行走时髋部疼痛明显减轻，膝伸肌力量改善，单腿站立时间增加，出院时步行速度和步幅增加。干预组步行所需的天数和停留时间也明显减少。结论：结论：术后 3 天开始的交叉训练器锻炼改善了 THA 后的身体功能和行走能力。