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Related Experiment Video

Updated: Jun 29, 2026

Movement Retraining using Real-time Feedback of Performance

Movement Retraining using Real-time Feedback of Performance

Published on: January 17, 2013

Visual and proprioceptive feedback improves knee joint position sense.

Timothy J Brindle¹, J C Mizelle, Maria K Lebiedowska

¹Biomechanics Laboratory, National Institutes of Health, Building 10 CRC, Room 1-1469 10 Center Drive MCS 1604, Bethesda, MD 20892, USA. Tbrindle@cc.nih.gov

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA

|October 8, 2008

Summary

Feedback significantly improved joint position sense (JPS) in healthy adults, reducing errors in replicating knee positions. Most gains in proprioception occurred within ten trials, suggesting short-term central nervous system adaptations.

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Movement Retraining using Real-time Feedback of Performance

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Area of Science:

Neuroscience
Motor Control
Biomechanics

Background:

Joint position sense (JPS) assesses proprioception, crucial for motor control.
Feedback commonly enhances motor performance but its effect on JPS is unclear.

Purpose of the Study:

To investigate if feedback reduces error in knee JPS.
To examine JPS at varying movement velocities (0.5, 2, 10 degrees/s).

Main Methods:

Healthy volunteers performed passive knee extensions to a target position.
Visual and proprioceptive feedback on limb position was provided post-movement.
Error measures included constant error (CE), absolute error (AE), and variable error (VE).

Main Results:

Significant reductions in CE, AE, and VE were observed.
Percent correct (%CORR) significantly increased.
85% of JPS improvement occurred by the tenth trial.

Conclusions:

Feedback effectively decreases error in knee JPS.
Short-term JPS improvements may stem from temporary CNS adaptations.
Further research is needed to explore long-term JPS learning and enhancement.