Centro de Estudos do Comportamento Motor, Departamento de Educação Física, Setor de Ciências Biológicas, Universidade Federal do Paraná, Rua Coronel Heráclito dos Santos, 100, Centro Politécnico, Jardim das Américas, Curitiba 19011, Paraná, Brazil.
Faculty of Engineering & Informatics, University of Bradford, Bradford BD7 1DP, UK.
Sensors (Basel). 2024 Sep 18;24(18):6036. doi: 10.3390/s24186036.
The study presents a new approach for assessing plantarflexor muscles' function using a smartphone. The test involves performing repeated heel raises for 60 s while seated. The seated heel-rise test offers a simple method for assessing plantarflexor muscles' function in those with severe balance impairment who are unable to complete tests performed while standing. The study aimed to showcase how gyroscopic data from a smartphone placed on the lower limb can be used to assess the test. Eight participants performed the seated heel-rise test with each limb. Gyroscope and 2D video analysis data (60 Hz) of limb motion were used to determine the number of cycles, the average rise (T-rise), lowering (T-lower), and cycle (T-total) times. The number of cycles detected matched exactly when the gyroscope and kinematic data were compared. There was good time domain agreement between gyroscopic and video data (T-rise = 0.0005 s, T-lower = 0.0013 s, and T-total = 0.0017 s). The 95% CI limits of agreement were small (T-total -0.1118, 0.1127 s, T-lower -0.1152, 0.1179 s, and T-total -0.0763, 0.0797 s). Results indicate that a smartphone placed on the thigh can successfully assess the seated heel-rise test. The seated heel-rise test offers an attractive alternative to test plantarflexor muscles' functionality in those unable to perform tests in standing positions.
本研究提出了一种使用智能手机评估足底屈肌功能的新方法。测试包括在坐姿下进行 60 秒的重复脚跟抬高。坐姿脚跟抬高测试为严重平衡障碍且无法完成站立测试的患者提供了一种评估足底屈肌功能的简单方法。本研究旨在展示如何使用放置在下肢上的智能手机的陀螺仪数据来评估测试。8 名参与者用每条腿进行坐姿脚跟抬高测试。使用陀螺仪和肢体运动的 2D 视频分析数据（60 Hz）来确定循环次数、平均上升（T-rise）、下降（T-lower）和周期（T-total）时间。当比较陀螺仪和运动学数据时，检测到的循环次数完全匹配。陀螺仪和视频数据在时域上具有良好的一致性（T-rise = 0.0005 s，T-lower = 0.0013 s，T-total = 0.0017 s）。95%CI 一致性界限较小（T-total -0.1118，0.1127 s，T-lower -0.1152，0.1179 s，和 T-total -0.0763，0.0797 s）。结果表明，放置在大腿上的智能手机可以成功评估坐姿脚跟抬高测试。坐姿脚跟抬高测试为无法进行站立测试的患者提供了一种有吸引力的替代方法来评估足底屈肌的功能。
