Measurement of the Changes of Muscle Activity and Joint Angles of Legs to Prevent Ski Sports Injury

• 발행기관: 한국자료분석학회
• 저자명: 이효택(Hyo-Taek Lee) 노효련(Hyo-Lyun Roh) 허보섭(Bo-Soeb Heo) 김용재(Yong-Jae Kim)
• 간행물 정보: 『Journal of The Korean Data Analysis Society (JKDAS)』Vol.17 No.1, 43~51쪽, 전체 9쪽
• 주제분류: 자연과학 > 통계학
• 파일형태: PDF
• 발행일자: 2015.02.28

영문 초록

The aim of this study was to analyze the performance of simulated skiing by experienced ski instructors and to identify the muscle activity differences and muscle fatigue changes in the movements of the lower limb joints. Participants in this study s experiment were 8 male skiers (average age: 29.25±3.2 years, average height: 177.25±6.0cm, average weight: 72.75±7.0kg, average number of career: 7.5±2.3 years). This experiment was conducted using a motion analysis system and electromyography analysis system. The low extremity joint s ranges of angles were measured, and hamstring, gastrocnemius, rectus femoris, tibialis anterior muscle activity and muscle fatigue were measured. After performing skiing motions on a ski-simulator, muscle activity and muscle fatigue increased in muscle rectus femoris and muscle tibialis anterior. The ROM (range of motion) of hip joint became small in all the events, and the ROM of knee joint became large in the event 1, 2, 3 and there was a change of the ROM of ankle joint to become small in the event 4, 5. To prevent ski injury, it is thought that training program to strengthen muscle rectus femoris and to increase the flexibility and muscular strength of ankle is necessary.

목차

1. Introduction

2. Subjects and Methods

3. Results

4. Discussion

5. Conclusion

References

키워드

Skiing injuries Skiing analysis Muscle activity Data analysis