期刊
SENSORS
卷 19, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/s19020265
关键词
gait mechanics; ground reaction force; reliability; Bland-Altman; in-shoe
资金
- Virginia Tech Open Access Subvention Fund
The assessment of loading during walking and running has historically been limited to data collection in laboratory settings or with devices that require a computer connection. This study aims to determine if the loadsol((R))a single sensor wireless insoleis a valid and reliable method of assessing force. Thirty (17 male and 13 female) recreationally active individuals were recruited for a two visit study where they walked (1.3 m/s) and ran (3.0 and 3.5 m/s) at a 0%, 10% incline, and 10% decline, with the visits approximately one week apart. Ground reaction force data was collected on an instrumented treadmill (1440 Hz) and with the loadsol((R)) (100 Hz). Ten individuals completed the day 1 protocol with a newer 200 Hz loadsol((R)). Intraclass correlation coefficients (ICC3,k) were used to assess validity and reliability and Bland-Altman plots were generated to better understand loadsol((R)) validity. Across conditions, the peak force ICCs ranged from 0.78 to 0.97, which increased to 0.84-0.99 with the 200 Hz insoles. Similarly, the loading rate ICCs improved from 0.61 to 0.97 to 0.80-0.96 and impulse improved from 0.61 to 0.97 to 0.90-0.97. The 200 Hz insoles may be needed for loading rate and impulse in running. For both walking and running, the loadsol((R)) has excellent between-day reliability (>0.76).
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