펜싱 선수들의 급성 신장성 운동 후 근피로 회복을 위한 PNF와 EMS 병행 처치가 근 기능에 미치는 영향 = The Effects of Combined PNF and EMS Intervention on Muscle Function Recovery Following Acute Eccentric Exercise in Collegiate Fencing Players

다국어 초록 (Multilingual Abstract)

This study investigated the short-term recovery of the quadriceps and hamstring muscles after acute fatigue induced by repetitive eccentric contractions of the lower extremities in collegiate male fencing athletes. Participants were assigned to a PNF group (n=7), an EMS group (n=7), and a combined PNF, EMS group (n=7). Isokinetic strength, time to peak torque, muscle mechanical properties (stiffness, frequency, decrement), and subjective fatigue (VAS, RPE) were measured at baseline, immediately after eccentric exercise, immediately after recovery treatment, and at 15 and 30 minutes post-treatment. The results showed that isokinetic extensor strength of the quadriceps significantly increased across time only in the combined PNF, EMS group. In addition, muscle mechanical properties frequency and decrement of the quadriceps were decreased following the combined treatment. In the hamstrings, isokinetic flexor strength did not show significant changes; however, the time to peak torque decreased in the combined group. VAS and RPE decreased over time in all treatment groups. These findings indicate that the combined PNF, EMS treatment was more effective in enhancing quadriceps recovery, whereas the applied interventions may not have been sufficient to facilitate recovery in the hamstrings. Future studies should adjust the intensity and modality of interventions while considering individual muscle characteristics, particularly in the hamstrings.