Effect of quadriceps and hamstrings muscle cooling on standing balance in healthy young men

Objective: The present study compared the effect of quadriceps and hamstring muscle cooling on standing balance in healthy young men. Methods: Thirty healthy young men (18-30 years) participated in the study. The participants were randomly assigned to three groups (n=10 each): quadriceps cooling (QC), hamstring cooling (HC), or control group (no cooling). Participants in the QC and HC groups received 20 minutes of cooling using a cold pack (gel pack), placed on the anterior thigh (from the apex of the patella to the mid-thigh) and the posterior thigh (from the base of the popliteal fossa to the mid-thigh), respectively. Balance score including unilateral stance was measured at baseline and immediately after the application of the cold pack. Results: No significant difference in the balance score was noted in any group after the application of the cold pack (p>0.05). Similarly, no significant differences in post-test balance score were noted among the three groups (p>0.05). Conclusions: Cooling of the quadriceps and hamstring muscles has no immediate effect on standing balance in healthy young men. However, longitudinal studies are warranted to investigate the long-term effects of cooling these muscles on standing balance.