Purpose: This study aimed to investigate the effect of shoulder approximation on the activation of the periscapular muscles inproprioceptive neuromuscular facilitation (PNF) arm exercises, specifically the lower trapezius and serratus anterior.
Method...
Purpose: This study aimed to investigate the effect of shoulder approximation on the activation of the periscapular muscles inproprioceptive neuromuscular facilitation (PNF) arm exercises, specifically the lower trapezius and serratus anterior.
Methods: This study included 18 healthy adults without musculoskeletal or neurological disorders. The activation of the lowertrapezius and serratus anterior was examined using surface electromyography (Ultium EMG, Noraxon Inc., USA) during PNFarm pattern exercises with and without shoulder approximation. The exercises were performed in the seated position. The collecteddata were analyzed using SPSS version 21.0.
Results: Muscle activation of both the lower trapezius and serratus anterior increased significantly when shoulderapproximation was applied (p<0.05). However, within each condition, there was no significant difference in activation betweenthe two muscles (p>0.05).
Conclusion: The application of shoulder approximation during PNF arm pattern exercise may effectively enhance theactivation of scapular stabilizing muscles. These findings highlight the effectiveness of approximation in promoting shoulderstabilizer muscle activity during rehabilitation exercises.