Foot-Placed Inertial Measurement Units Are Valid Against Shank-Placed Units When Measuring Temporospatial Running Variables.

IF 1.3 4区医学 Q3 REHABILITATION

Journal of Sport Rehabilitation Pub Date : 2025-03-20 DOI:10.1123/jsr.2024-0258

Madison S Mach, Hayley Ericksen, Erin Lally, Jennifer E Earl-Boehm

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引用次数: 0

Abstract

Context: Running is a popular form of physical activity but can increase an individual's lower-extremity injury risk. Running gait analysis via inertial measurement units (IMUs) is a method for collecting important gait data that is related to developing lower-extremity injuries, such as increased load from low step rate (SR), and long stride length (SL). IMU data can be derived from both foot- and shank-placed IMUs, but foot-placed sensors (RunScribe IMUs) need validation against shank-placed sensors.

Purpose: Determine criterion validity of RunScribe foot-placed IMUs against MyoMotion shank-placed IMU for SR and SL.

Design: cross-sectional laboratory study.

Methods: Nine participants (5 males, 4 females; age: 28.33 [5.78]; height: 1.75 [0.11]; mass: 74.06 [16.24]) volunteered for our study. Following a 5-minute warm-up, participants ran on a treadmill for 5 minutes at a self-selected speed. After ∼2.5 minutes, MyoMotion data were collected for 10 seconds. The RunScribe IMUs collected data throughout the full duration of the run. Criterion validity of SR and SL between the foot- and shank-placed IMUs was determined using bivariate Pearson correlations, intraclass correlation coefficients (3,1), and Bland-Altman plots with 95% limits of agreement analysis.

Results: A very strong correlation for SR (r = .90, N = 9, P ≤ .001), and a strong correlation for SL (r = .80, N = 9, P < .001) were found between the foot and shank-placed IMUs. Excellent reliability was found for SR (intraclass correlation coefficient = .91, P ≤ .001, 95% CI, .639-.978), and good reliability was found for SL (intraclass correlation coefficient = .800, P = .003, 95% CI, .340-.951) between the foot and shank-placed IMUs. The mean difference of SR and SL was -2.111 and -0.142, respectively, indicating good agreement between the foot and shank-placed IMUs.

Conclusions: Foot-placed RunScribe IMUs are a valid alternative for measuring SR and SL compared with shank-placed IMUs.

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在测量时空运行变量时，脚置惯性测量单元对腿置惯性测量单元有效。

背景：跑步是一种流行的体育活动形式，但会增加个人下肢受伤的风险。通过惯性测量单元（imu）进行跑步步态分析是一种收集与下肢损伤相关的重要步态数据的方法，例如低步速（SR）和长步幅（SL）造成的负荷增加。IMU数据可以从脚置和腿置IMU中获得，但脚置传感器（RunScribe IMU）需要针对腿置传感器进行验证。目的：确定RunScribe脚置IMU与MyoMotion腿置IMU对SR和sl的效度。设计：横断面实验室研究。方法：9名受试者(男5名，女4名；年龄：28.33 [5.78]；高度：1.75 [0.11]；[16.24])自愿参加我们的研究。在5分钟的热身之后，参与者在跑步机上以自己选择的速度跑了5分钟。2.5分钟后，收集10秒的MyoMotion数据。RunScribe imu在整个运行过程中收集数据。采用双变量Pearson相关、类内相关系数（3,1）和Bland-Altman图确定足部和小腿放置imu之间SR和SL的标准效度，一致性分析限为95%。结果：足部和胫部imu与SR （r = 0.90, N = 9, P≤0.001）和SL （r = 0.80, N = 9, P < 0.001）有很强的相关性。足部和胫部imu之间的SR（类内相关系数= 0.91,P≤0.001,95% CI, 0.639 ~ 0.978）和SL（类内相关系数= 0.800,P = 0.003, 95% CI, 0.340 ~ 0.951）具有良好的信度。SR和SL的平均差值分别为-2.111和-0.142，表明足部和胫部的imu吻合良好。结论：足部放置的RunScribe imu与小腿放置的RunScribe imu相比，是测量SR和SL的有效选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Sport Rehabilitation 医学-康复医学

CiteScore

3.20

自引率

5.90%

发文量

143

审稿时长

>12 weeks

期刊介绍： The Journal of Sport Rehabilitation (JSR) is your source for the latest peer-reviewed research in the field of sport rehabilitation. All members of the sports-medicine team will benefit from the wealth of important information in each issue. JSR is completely devoted to the rehabilitation of sport and exercise injuries, regardless of the age, gender, sport ability, level of fitness, or health status of the participant. JSR publishes peer-reviewed original research, systematic reviews/meta-analyses, critically appraised topics (CATs), case studies/series, and technical reports that directly affect the management and rehabilitation of injuries incurred during sport-related activities, irrespective of the individual’s age, gender, sport ability, level of fitness, or health status. The journal is intended to provide an international, multidisciplinary forum to serve the needs of all members of the sports medicine team, including athletic trainers/therapists, sport physical therapists/physiotherapists, sports medicine physicians, and other health care and medical professionals.