일회성 경두개 직류전기자극(tDCS) 적용이 젊은 성인의 하지 근지구력에 미치는 영향 (Effects of Acute Transcranial Direct Current Stimulation on Muscle Endurance of the Lower Extremities for Young Healthy Adults)

서지정보

· 발행기관 : 한국운동역학회
· 수록지 정보 : 한국운동역학회지 / 32권 / 3호 / 94 ~ 102페이지
· 저자명 : 박신영, 고도경, 정형도, 이한얼, 이형우, 김찬기, 안승호, 김지영, 문보성, 손지수, 이도현, 이의영, 이주학, 임승빈, 유안 텐, 전경규, 강년주

초록

Objective: The purpose of this study was to investigate the effect of acute transcranial direct current stimulation (tDCS) on the isokinetic muscular endurance of the lower extremity for young adults.
Method: Thirteen young adults performed isokinetic fatigue tasks for two experimental conditions including real tDCS and sham stimulation protocols. Before and after the task, the tensiomyography was used for evaluating muscle contraction characteristics of vastus medialis and semitendinosus. Paired t-test was performed to compare the fatigue index, changes in maximum radial displacement (ΔDm), delay time (ΔTc), and velocity of contraction (ΔVc) between tDCS conditions.
Results: We found no significant differences in the fatigue index between real and sham conditions. In addition, the analyses identified no significant different values of ΔDm, ΔTc, and ΔVc in the vastus medialis and semitendinosus between real and sham conditions.
Conclusion: These findings suggest that the tDCS protocols may have no acute effect on lower limb muscle endurance for young adults. Future studies should consider the long-term effects of repetitive tDCS sessions, various stimulation positions, exercise tasks, and participant characteristics to more clearly understand the effect of tDCS on muscle endurance of lower extremities.

영어초록

Objective: The purpose of this study was to investigate the effect of acute transcranial direct current stimulation (tDCS) on the isokinetic muscular endurance of the lower extremity for young adults.
Method: Thirteen young adults performed isokinetic fatigue tasks for two experimental conditions including real tDCS and sham stimulation protocols. Before and after the task, the tensiomyography was used for evaluating muscle contraction characteristics of vastus medialis and semitendinosus. Paired t-test was performed to compare the fatigue index, changes in maximum radial displacement (ΔDm), delay time (ΔTc), and velocity of contraction (ΔVc) between tDCS conditions.
Results: We found no significant differences in the fatigue index between real and sham conditions. In addition, the analyses identified no significant different values of ΔDm, ΔTc, and ΔVc in the vastus medialis and semitendinosus between real and sham conditions.
Conclusion: These findings suggest that the tDCS protocols may have no acute effect on lower limb muscle endurance for young adults. Future studies should consider the long-term effects of repetitive tDCS sessions, various stimulation positions, exercise tasks, and participant characteristics to more clearly understand the effect of tDCS on muscle endurance of lower extremities.

참고자료

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