근활성 모니터링을 활용한 코어 운동이 육상 선수의 배가로근 두께 및 활성에 미치는 영향
Effect of Muscle Activation Feedback Monitoring During Core Stabilization on Tranversus Abdominis Thickness and Activation in Track-and-Field Athletes
This study investigated the effects of an EMG-based feedback core stabilization exercise on the thickness and activation of the transversus abdominis (TrA) in collegiate track-and-field athletes. Twenty elite sprinters were randomly assigned to either an Muscle activation monitoring core exercise group (MMCEG) or a General core exercise group (GCEG). Both groups performed a structured core stabilization program for eight weeks(three sessions per week, 60 minutes per session). Each training session consisted of warm-up, main exercise, and cool-down phases. The main exercise included common tasks such as curl-up, side bridge, and bird dog. The MMCEG received real-time muscle activation feedback using the Blueback Physio EMG system to regulate contraction intensity and timing, whereas the GCEG performed identical exercises guided only by verbal instruction and demonstration. The thickness of the TrA was assessed using rehabilitative ultrasound imaging, and muscle activation was measured with surface electromyography under identical conditions before and after training. A two-way mixed ANOVA revealed significant main effects of time and time×group interactions( p<.05). Both groups showed post-intervention improvements in TrA thickness and activation, whereas the MMCEG demonstrated significantly greater gains compared with the GCEG(p<.05). These findings suggest that EMG-based feedback enhances the precision of muscle contraction and neuromuscular control, thereby promoting more efficient motor learning within the same training dose. In conclusion, EMG-based feedback core stabilization exercise appears to be an effective and practical strategy not only for improving selective TrA activation and trunk stability but also for contributing to injury prevention and performance enhancement in athletes.
목차
Abstract Ⅰ. 서론 Ⅱ. 연구방법 1. 연구 대상자 2. 연구절차 및 중재방법 3. 측정방법 4. 자료분석 Ⅲ. 결과 1. 연구 대상자의 일반적 특성 2. 배가로근의 두께·활성도의 기술통계 3. 집단 간 배가로근의 두께에 대한 이원혼합분산분석 결과 4. 집단 간 배가로근의 활성도에 대한 이원 혼합분산분석 결과 5. 시간×집단 상호작용의 단순효과 분석 Ⅳ. 고찰 Ⅴ. 결론 인용문헌