일회성 저항성 운동 강도가 태권도 선수의 통증 자각도 및 근육기계적 속성에 미치는 영향

PURPOSE: The purpose of this study was to investigate the effect of acute resistance exercise intensity on pain perception, musclemechanical properties, oxygen saturation (OS) and lactate in taekwondo athletes. METHODS: A total of 21 national and university taekwondo athletes participated in the study. The participants were randomly classifiedinto 70% of one repetition maximum (1 RM) (70% group, n=7), 30% of 1 RM (30% group, n=7), and 30% all-out group of 1RM (30%A group, n=7). We measured resting pain perception, muscle mechanical properties, lactate, heart rate (HR) and OS, andthose were measured immediately after exercise (IAE), 5- and 15-minute after recovery according to exercise intensity. RESULTS: The 70% group showed that heat pain threshold (HPT) became numerically sensitive IAE compared to rest. Pain visualanalog scale (VAS) and HR increased significantly IAE compared to rest, and lactate increased significantly IAE, 5- and 15-minute afterexercise compared to rest, respectively. Dynamic stiffness (DS) decreased significantly in 15-minute after the exercise compared to IAE. In 30% group case, pain VAS and HR increased significantly IAE compared to rest, and lactate increased significantly IAE, 5- and15-minute after exercise compared to rest, respectively. DS decreased significantly in 15-minute after the exercise compared to IAE. The 30%A group showed that pain VAS and HR increased significantly IAE compared to rest. Lactate increased significantly IAE, 5-and 15-minute after exercise compared to rest, respectively. DS decreased significantly in immediately and 5-minute after the exercisecompared to rest, respectively. Frequency increased IAE compared to rest. CONCLUSIONS: HPT, pain VAS, lactate, HR, and OS were found to be no difference between resistance exercise intensity. The intensityof 1 RM 30% all-out has been shown to contribute to muscle-adaptation effects of resistance exercise by further increasing muscletension and dynamic stiffness as much as 70% of 1 RM. KCI Citation Count: 0