The Efficacy of Simultaneously Training 2 Motion Targets During a Squat Using Auditory Feedback.

Area of Science:

• Biomechanics
• Motor Learning
• Rehabilitation Technology

Background:

• Auditory feedback is a recognized, cost-effective tool for motor skill acquisition.
• Current applications typically focus on training a single kinematic or kinetic parameter.
• The potential for simultaneous multi-parameter training using auditory feedback remains largely unexplored.

Purpose of the Study:

• To investigate the efficacy of auditory feedback in simultaneously training two lower-extremity biomechanical parameters during bodyweight back squats.
• To assess the ability to train knee flexion angle and center of pressure concurrently.

Main Methods:

• A 4-week training program involving 42 healthy males performing bodyweight back squats.
• The trained group received auditory feedback on knee flexion angle and center of pressure at maximum squat depth.
• A control group performed squats without auditory feedback; all participants were tested pre-training, post-training, and at retention.

Main Results:

• The trained group successfully achieved target knee flexion angle post-training and at retention (P < .001, P < .01).
• While achieving target knee flexion, the trained group also maintained the target center of pressure (P < .001).
• The control group showed improvements in knee range of motion but did not achieve both target parameters simultaneously (P < .90).

Conclusions:

• Auditory feedback is an effective method for simultaneously training two independent biomechanical targets in the lower extremities.
• This approach extends the application of auditory feedback beyond single-parameter training for motor learning and rehabilitation.
• Simultaneous auditory feedback shows promise for enhancing complex motor skill development in activities like the back squat.