OBJECTIVES To investigate the effects of dual task balance training on static and dynamic balance, functional mobility, cognitive level, and sleep quality in individuals with transfemoral amputation. DESIGN Randomised controlled clinical trial. PARTICIPANTS Transfemoral amputees (n=20). INTERVENTIONS Participants were randomly assigned to the single task gait and balance training group (n=10) or the dual task task gait and balance training group (n=10). Training was given in sessions of 60 min/day, 3 days/wk for 4 weeks. The single task training group performed traditional gait and balance exercises, and the dual task training group practised cognitive and motor tasks while performing gait and balance exercises. MAIN OUTCOME MEASURES The one leg stance test and the four-square step test were used for balance assessment. The Timed Up and Go test, and 10-meter walk test were used for gait assessment. Three test conditions to evaluate the training effects were single walking, walking while performing a cognitive task (serial subtraction), and walking while performing a motor task (tray-carrying). The Montreal Cognitive Assessment scale was used for cognitive assessment and the Pittsburgh Sleep Quality Index for sleep quality assessment. RESULTS Balance and mobility improved in both groups. Dual task balance performance, functional mobility and gait speed improved more in the dual task training group after training (p <0.05). Cognitive status and sleep quality improved significantly in the dual task group (p <0.05). CONCLUSIONS Dual-task training was more effective than single task training in the improvement of dual task performance and cognitive status. The inclusion of dual task exercises in the rehabilitation program of transfemoral amputees will provide a different perspective due to increased task automation.

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双任务平衡训练对大腿截肢者步态和平衡影响的研究：一项随机对照试验

目的 研究双任务平衡训练对经股截肢患者静态和动态平衡、功能活动、认知水平和睡眠质量的影响。设计 随机对照临床试验。参与者 经股截肢者 (n=20)。干预 参与者被随机分配到单任务步态和平衡训练组（n=10）或双任务步态和平衡训练组（n=10）。培训以 60 分钟/天、3 天/周的课程进行，持续 4 周。单任务训练组进行传统的步态和平衡练习，双任务训练组在进行步态和平衡练习的同时练习认知和运动任务。主要观察指标采用单腿站立测试和四方步测试进行平衡评估。Timed Up and Go 测试，和10米步行测试用于步态评估。评估训练效果的三个测试条件是单人步行、在执行认知任务时行走（连续减法）和在执行运动任务时行走（携带托盘）。蒙特利尔认知评估量表用于认知评估，匹兹堡睡眠质量指数用于睡眠质量评估。结果 两组的平衡能力和活动能力都有所改善。训练后双任务训练组的双任务平衡性能、功能移动性和步态速度提高更多（p <0.05）。双任务组的认知状态和睡眠质量显着改善（p <0.05）。结论双任务训练在提高双任务表现和认知状态方面比单任务训练更有效。