Estimation of joint torque in dynamic activities using wearable A-mode ultrasound

6Citations
Citations of this article
41Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

The human body constantly experiences mechanical loading. However, quantifying internal loads within the musculoskeletal system remains challenging, especially during unconstrained dynamic activities. Conventional measures are constrained to laboratory settings, and existing wearable approaches lack muscle specificity or validation during dynamic movement. Here, we present a strategy for estimating corresponding joint torque from muscles with different architectures during various dynamic activities using wearable A-mode ultrasound. We first introduce a method to track changes in muscle thickness using single-element ultrasonic transducers. We then estimate elbow and knee torque with errors less than 7.6% and coefficients of determination (R2) greater than 0.92 during controlled isokinetic contractions. Finally, we demonstrate wearable joint torque estimation during dynamic real-world tasks, including weightlifting, cycling, and both treadmill and outdoor locomotion. The capability to assess joint torque during unconstrained real-world activities can provide new insights into muscle function and movement biomechanics, with potential applications in injury prevention and rehabilitation.

Cite

CITATION STYLE

APA

Jin, Y., Alvarez, J. T., Suitor, E. L., Swaminathan, K., Chin, A., Civici, U. S., … Walsh, C. J. (2024). Estimation of joint torque in dynamic activities using wearable A-mode ultrasound. Nature Communications, 15(1). https://doi.org/10.1038/s41467-024-50038-0

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free