Immediate effect of ischemic loading on quadriceps muscle output by using a pneumatic cuff

Abstract

Introduction: Transient ischemic conditioning (TIC) is a technique that involves short periods of ischemia followed by reperfusion, which may enhance muscle strength by increasing blood flow and improving energy supply to muscle fibers. This study aims to investigate the effect of TIC on quadriceps strength and examine its potential as a warm-up exercise in rehabilitation.

Methods: Fifteen healthy male participants underwent TIC on the quadriceps. Ischemia was induced for 5 min, followed by reperfusion. Muscle strength was assessed at baseline, 10 min post-intervention, and 20 min post-intervention.

Results: TIC applied to the quadriceps resulted in a significant increase in muscle strength compared to baseline (p ≤ 0.05). This increase in strength was observed at both 10 min and 20 min after the intervention.

Discussion: The results suggest that TIC can passively enhance muscle strength without inducing muscle fatigue. Therefore, TIC could be a valuable tool in rehabilitation where maintaining or improving muscle strength is essential.

Conclusion: TIC has shown potential as an effective method for improving muscle strength without causing fatigue. As such, it may be beneficial as a warm-up modality during rehabilitation, contributing to the recovery of motor function and muscle performance.

Keywords: Ischemic preconditioning; Motor performance; Passive warm-up exercise; Skeletal muscle blood flow; Transient ischemic conditioning.