The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Prediction of Maximal Flexion Strength for Exercise Intensity Setting and Measurement in Elbow Joint

팔꿉관절 운동강도 설정 및 측정을 위한 최대굴곡력 예측

  • Jang, Jee-Hun (Dept. of Sport & Leisure Studies, Catholic Kwandong University) ;
  • Kim, Jae-Min (Dept. of Sport & Leisure Studies, Catholic Kwandong University) ;
  • Kim, Yeon-Kyu (Dept. of Sport & Leisure Studies, Catholic Kwandong University) ;
  • Kim, Jin-Chul (Dept. of Sport & Leisure Studies, Catholic Kwandong University) ;
  • Cho, Tae-Yong (Dept. of Sport & Leisure Studies, Catholic Kwandong University) ;
  • Kim, Yun-Jeong (Dept. of Sport & Leisure Studies, Catholic Kwandong University) ;
  • Lee, Sang-Sik (Dept. of Biomedical Engineering, Catholic Kwandong University)
  • Received : 2017.08.29
  • Accepted : 2017.10.16
  • Published : 2017.11.01
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Abstract

The purpose of this study was to identify the difference and correlation in elbow joint maximal flexion strength according to measurement methods and characteristics of muscular contraction, and to develop the predictive equation of elbow joint maximal flexion strength for the optimal exercise intensity setting and accurate measurement. Subjects were 30 male university students. Elbow joint maximal flexion strength of isokinetic contraction, isometric contraction at $75^{\circ}$ elbow joint flexion position, isotonic concentric 1RM, manual muscle strength (MMT) were measured with isokinetic dynamometer, dumbbell, and manual muscle tester. Pearson's r, linear regression equation, and multiple regression equation between variables were calculated. As a result, the highest value was isometric contraction. The second highest value was MMT. The third highest value was isokinetic contraction. 1RM was the lowest. Predictive equations of elbow joint maximal flexion strength between isometric and isokinetic contraction, between isometric contraction and 1RM, among isometric contraction, 1RM, and body weight were developed. In conclusion, 1RM and isokinetic elbow joint maximal flexion strength could be seemed to underestimate the practical elbow joint maximal flexion strength. And it is suggested that the developed predictive equations in this study should be useful in criteria- and goal-setting for resistant exercise and sports rehabilitation after elbow joint injury.

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