엘리트 조정 선수의 2000m 에르고미터 수행 시 나타나는 근육 활성도 및 근 피로도 분석 연구

The purpose of this study was to analyze changes in muscle activation across different rowing movement phases (Catch, Drive, Finish, Recovery) and to examine the impact of accumulated fatigue on rowing performance. Surface electromyography (sEMG) was used to measure the muscle activation of four elite rowers during a 2,000-meter rowing performance. The muscles measured included the lateral triceps, latissimus dorsi, erector spinae, soleus, and rectus femoris. To analyze changes in muscle activation, integrated EMG (iEMG) values were used, and paired t-tests were conducted to compare differences in muscle activation across movement phases. The rowing cycle was divided into four distinct phases: Catch, Drive, Finish, and Recovery. Statistical significance was set at α = 0.05, and all analyses were performed using SPSS version 26.0. The results indicated a significant decrease in the muscle activation of the latissimus dorsi and soleus during the latter half of the rowing performance. This suggests that accumulated fatigue directly contributes to a reduction in propulsive power and overall performance. In contrast, the activation levels of the lateral triceps, erector spinae, and rectus femoris did not show significant changes across the movement phases, indicating relatively stable activation patterns throughout the rowing performance. These findings highlight the importance of fatigue management and endurance training, particularly for maintaining muscle strength and optimizing energy efficiency during the latter stages of competition. This study provides evidence-based insights for developing targeted training programs and strategies for injury prevention and fatigue recovery in competitive rowers. Future research should expand the sample size and incorporate additional physiological variables to further optimize rowing performance and training methodologies.