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Does accelerometer location influence recreational runners' response to an accelerometer-based biofeedback gait
Ciarán P Ó Catháin1,2, Kieran A Moran3,4,5
1Department of Sport and Health Science, Technological University of the Shannon, Midlands, Ireland.
Journal of Sports Sciences
|April 24, 2025
Summary
Load-based visual biofeedback systems can help runners reduce impact forces. This study found that accelerometer placement (tibial or sacral) did not affect the system's ability to decrease peak accelerations, aiding injury prevention and rehabilitation.
Area of Science:
- Biomechanics
- Sports Medicine
- Exercise Physiology
Background:
- Running is a popular exercise, but injuries often lead to cessation.
- Load-based biofeedback systems show promise in reducing running impact.
- Understanding optimal sensor placement is key for effective biofeedback.
Purpose of the Study:
- To investigate how different accelerometer locations (tibial vs. sacral) in a visual biofeedback system affect running load reduction.
- To determine if varying sensor placement influences the ability to decrease peak tibial and sacral accelerations.
- To assess the potential of load-based biofeedback in running injury prevention and rehabilitation.
Main Methods:
- 27 participants were randomly assigned to tibial, sacral, or treadmill-based biofeedback groups.
- Participants completed a running protocol including baseline, biofeedback, and post-biofeedback phases.
- Peak tibial and sacral accelerations were measured to quantify running load.
Main Results:
- A significant main effect of time and biofeedback location was observed for peak tibial accelerations (p < 0.05).
- A significant main effect of time was found for peak sacral accelerations (p < 0.001).
- All tested biofeedback locations effectively reduced peak tibial and sacral accelerations.
Conclusions:
- Load-based visual biofeedback is effective in reducing running impact forces.
- Accelerometer placement (tibial or sacral) does not appear to significantly alter the effectiveness of the biofeedback system.
- These findings suggest biofeedback systems have potential utility in managing and preventing running-related injuries.
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