마라톤 주자의 등속성 근기능, 균형능력 및 통증이 무릎관절 동측근력비율에 미치는 영향

Abstract

In this study, 30 Marathon Runners were classified into 13 normal group and 17 abnormal group according to the H/Q ratio range in order to investigate the effect of Isokinetic Muscle Function, Balance Ability, and Pain on the H/Q ratio of Marathon Runners. After measuring, comparing and analyzing Isokinetic Muscle Function, Balance Ability, and Pain, Multiple Regression Analysis was conducted to identify the factors with the highest influence on H/Q Ratio as follows. 1. As a result of Isokinetic Muscle Strength (60°/sec) analysis, The Extensor Peak TQ was 4.15% lower in the normal group than in the abnormal group, and the Flexor Peak TQ was 6.71% lower in the normal group, and There was no significant difference in both. Extensor PT/BW was 17.01% higher in the normal group than in the abnormal group, and there was a statistically significant difference (p<.001). Flexor PT/BW was 19.76% higher in the normal group, and there was a statistically significant difference (p<.01). 2. As a result of Isokinetic Muscle Power (180°/sec) analysis, the Extensor Peak TQ was 8.39% lower in the normal group than in the abnormal group, and there was no statistically significant difference. The Peak TQ of the Flexor muscle was 19.09% lower in the normal group, and there was a statistically significant difference (p<.05). Extensor PT/BW was 5.93% higher in the normal group than in the abnormal group, and Flexor PT/BW was 7.49% higher in the normal group, and There was no significant difference in both. 3. As a result of Isokinetic Muscle Endurance (300°/sec) analysis, The Extensor Peak TQ was 6.14% lower in the normal group than in the abnormal group, and The Flexor Peak TQ was 8.75% lower in the normal group, and There was no significant difference in both. Extensor PT/BW was 5.85% higher in the normal group than in the abnormal group, and Flexor PT/BW was 3.83% higher in the normal group, and There was no significant difference in both. 4. As a result of the Balance Ability analysis, The Overall Stability Index was 5.68% higher in the right foot normal group than in the abnormal group, and 8.70% higher in the left foot normal group, and There was no significant difference in both. The Anterior/Posterior Stability Index was 2.01% lower in the right foot normal group than in the abnormal group, and there was no significant difference. The left foot was 20.82% lower in the normal group, and there was a statistically significant difference (p<.05). In terms of Medial/Lateral Stability Index, the right foot normal group was 9.05% lower than the abnormal group, and the left foot normal group was 1.35% lower, and there was no significant difference in both. 5. As a result of analysis of Knee Pain, Pain was 0.89% higher in the normal group than in the abnormal group, Symptoms were 1.23% higher in the normal group, Daily Living Functions were 0.80% higher in the normal group, Sport and Recreational Activities Functions were 4.26% higher in the normal group. The Quality of Life was 1.46% lower in the normal group. There were no significant differences in all. 6. As a result of Multiple Regression Analysis, the factors highly correlated with the H/Q Ratio were in the order of 60°/sec Extensor PT/BW, 180°/sec Extensor Peak TQ, 60°/sec Flexor PT/BW, and 180°/sec Flexor Peak TQ. Combining the above results, the normal H/Q ratio group showed high Muscle Strength Extensor, Flexor PT/BW, Muscle Power Extensor, Flexor PT/BW, Muscular Endurance Extensor, and Flexor PT/BW Isokinetic Muscle Function. It was found that the Balancing Ability was high, such as the Overall Stability Index, the Anterior/Posterior Stability Index, and the Medial/Leteral Stability Index. In particular, the factor most affecting the H/Q ratio was the Muscle Strength Extensor PT/BW, followed by Muscle Power Extensor Peak TQ, Muscle Strength Flexor PT/BW, and Muscle Power Flexor Peak TQ. Therefore, it is thought that training for Muscle Strength and Muscle Power improvement rather than Muscular Endurance training for Marathon Runners has a positive effect on the H/Q ratio and will help prevent and improve knee injuries.