一种自动化的脚趾上举测试方法

Sarah Aruje Zahid, Y. Çelik, A. Godfrey, J. Buckley
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引用次数: 0

摘要

正常的踝关节功能为日常活动提供了关键的帮助,特别是在经常跌倒的台阶/楼梯上下。脚尖向上(UTT) 30秒测试(UTT-30)用于踝关节肌肉力量/功能和耐力的临床评估,通常由观察者计算完成的UTT运动来评估。本研究的目的是:(i)通过比较惯性测量单元(imu)导出的指标与力平台(FP)的指标,确定惯性测量单元(imu)是否能提供对UTT-30的有效评估,以及(ii)描述如何使用imu在进行单次UTT运动(UTT-stand)时提供对运动动力学/稳定性的有效评估。20名成人(26.2±7.7岁)在作用力平台上进行了UTT-30和UTT-stand,每只脚和腰椎均附有imu。我们评估了IMU指标与FP指标之间的一致性/相关性。对于UTT-30,使用IMU分析跖屈曲速度峰值和FP压力中心(CoP)速度峰值来识别每个重复的UTT运动,并提供客观手段来忽略任何未“完全”完成的UTT运动。被认为没有“完全”完成的UTT运动是那些在上升到踮起期间产生的峰值跖屈和CoP速度值低于每个参与者在重复UTT中平均峰值上升速度的1个标准差的运动。IMU方法检测到的UTT运动次数(23.5次)与FP确定的次数(23.6次)一致,并且每种方法确定的“完全”完成的运动次数相同(IMU, 19.9;《外交政策》,19.7)。对于UTT-stand, imu衍生的运动动力学/姿势稳定性与FP衍生的测量中度至强烈相关。我们的研究结果强调,使用imu可以提供有效的UTT测试评估。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Automated Approach to Instrumenting the Up-on-the-Toes Test(s)
Normal ankle function provides a key contribution to everyday activities, particularly step/stair ascent and descent, where many falls occur. The rising to up-on-the-toes (UTT) 30 second test (UTT-30) is used in the clinical assessment of ankle muscle strength/function and endurance and is typically assessed by an observer counting the UTT movement completed. The aims of this study are: (i) to determine whether inertial measurement units (IMUs) provide valid assessment of the UTT-30 by comparing IMU-derived metrics with those from a force-platform (FP), and (ii) to describe how IMUs can be used to provide valid assessment of the movement dynamics/stability when performing a single UTT movement that is held for 5 s (UTT-stand). Twenty adults (26.2 ± 7.7 years) performed a UTT-30 and a UTT-stand on a force-platform with IMUs attached to each foot and the lumbar spine. We evaluate the agreement/association between IMU measures and measures determined from the FP. For UTT-30, IMU analysis of peaks in plantarflexion velocity and in FP’s centre of pressure (CoP) velocity was used to identify each repeated UTT movement and provided an objective means to discount any UTT movements that were not completed ‘fully’. UTT movements that were deemed to have not been completed ‘fully’ were those that yielded peak plantarflexion and CoP velocity values during the period of rising to up-on-the-toes that were below 1 SD of each participant’s mean peak rising velocity across their repeated UTT. The number of UTT movements detected by the IMU approach (23.5) agreed with the number determined by the FP (23.6), and each approach determined the same number of ‘fully’ completed movements (IMU, 19.9; FP, 19.7). For UTT-stand, IMU-derived movement dynamics/postural stability were moderately-to-strongly correlated with measures derived from the FP. Our findings highlight that the use of IMUs can provide valid assessment of UTT test(s).
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