等速肌力與單次蹲舉最大肌力的相關
88年6月 研 究 生：姜振學
指導教授：謝伸裕
摘 要
本研究的目的在探討下肢在等速收縮測量儀上各個角速度下的伸膝、伸髖最大力矩，與單次槓鈴蹲舉最大肌力之相關，並推導出單次蹲舉最大肌力預測公式，作為決定阻力訓練負荷重量時的參考。
受試者為具有阻力訓練習慣的健康男生30名，平均年齡為21.56 + 2.32歲，平均身高為176.00 ± 5.44公分，平均體重為77.40 + 15.19公斤，體脂肪百分比平均為10.49 ± 5.07 %。受試者分別以CYBEX 6000等速收縮測量儀測量300/sec 、600/sec、1800/sec、3000/sec 轉速下右腿坐姿伸膝及臥姿伸髖的最大扭力，以水中稱重法測量體脂肪，及以槓鈴組測量單次蹲舉最大肌力。預測公式以單次蹲舉最大肌力做為效標變項，體重、體脂肪百分比、去脂體重、等速伸膝、伸髖最大扭力做為預測變項，進行多元逐步回歸。所得預測公式再經10名同樣具有阻力訓練習慣及10名未有阻力訓練習慣之健康男性覆核公式的效度，將預測值及實測值進行t-考驗，比較差異程度。結果與結論如下：
1. 本研究中受試者的單次蹲舉最大肌力約為體重的1.84倍。
2. 經逐步回歸後選取體重（X1）、180o/sec（X6）和300o/sec（X7）等速伸膝最大扭力，為單次蹲舉最大肌力的預測變項，其回歸公式為：Y = -44.34 + 0.79 X1 + 0.41 X6 + 0.34 X7 （R2=.90）。
3. 實際運用本公式於10名具有阻力訓練習慣者，其預測值與實測值間並未達顯著差異，但運用在10名未具有阻力訓練習慣者時，其預測值與實測值間有顯著差異(p<.05)，顯示本預測公式的族群特殊性，在具有阻力訓練習慣者身上有實際運用的價值。
關鍵詞：單次蹲舉最大肌力 、 等速最大扭力 、 伸髖 、 伸膝、
預測公式

The relationship between the isokinetic peak torque of
lower extremity and maximal squat strength
June 1999 Student: Chen-hsueh Chiang
Advisor: Sandy H. Hsieh
Abstract
The purposes of this study were to examine the relationship between knee extension, hip extension isokinetic peak torque in variety of velocities and one repetition maximum (1-RM) free weight squat strength, and to derive a prediction equation to predict 1-RM load for resistance training.
Subjects were 30 healthy male college students who were used to resistance training. They were 21.6 + 2.32 yr in age, 176.0 ± 5.44 cm in height, 77.4 + 15.19 kg in weight, 10.49 ± 5.07 % in percentage body fat. A CYBEX 6000 isokinetic dynamometer was use to measure peak torque for knee extension and hip extension at 300/sec, 600/sec, 1800/sec and 3000/sec. The percentage body fat was estimated by underwater weighing, and maximal squat strength (1-RM) was tested with free weight squat movement. A stepwise regression was performed using maximal squat strength as the criterion, and body weight, body fat percentage, free fat mass, isokinetic knee extension, hip extension peak torque as the predictors. The regression equation was then applied to another 10 subjects who used to resistance training and other 10 untrained college male students in order to cross-validate the validity.
The results indicated that the maximal squat strength were about 1.84 times of subjects’ body weight. The predictors of the regression equation for the maximal squat strength were body weight（X1）, 1800/sec（X6）and 3000/sec（X7）isokinetic knee extension peak torque. The regression equation is:
Y = -44.34 + 0.79 X1 + 0.41 X6 + 0.34 X7 （R2=.90）
Cross-validation shows that the regression equation was suitable for the subjects who used to resistance training, but not for the untrained subjects.
Keywords: one repetition maximal (1-RM), squat, isokinetic peak torque, knee extension, hip extension, prediction equation

引用文獻
林正常。(1995)。運動生理學實驗指引。台北市：師大書苑。
徐台閣、陳進龍、高清照。(1991)。短跑選手前五十公尺速度與膝關節伸肌與屈肌之等速肌力分析。中華民國體育學會體育學報, 13, 155-164.
American College of Sports Medicine. (1998).ACSM Fitness Book (2rd.). Champaign, IL : Human Kinetics Books.
Clarkson, P. M., Johnson, J., Dextradeur, D., Leszczynski, W., Wai, J., & Melchionda, A. (1982). The relationships among isokinetic endurance, initial strength level, and fiber type. Research Quarterly for Exercise and Sport, 53(1), 15-19.
Delitto, R.S., & Rose, S.J. (1992). An electromyographic analysis of two techniques for squat lifting and lowering. Physical Therapy, 72(6), 438-448.
Egger, J.P. (1994) Reflections on the evolution of performances in the shot put. New Studies in Athletics, 9 (1), 9–13.
Fleck, S. J., & Kraemer, W. J. (1987). Designing resistance training programs. Champaign, IL : Human Kinetics Books.
Ghena, D., Mayhew, J. L., Kurth, A., & Thompson, C. B. (1992). Prediction of isokinetic leg strength from anthropometric dimensions in male college athletes. Isokinetics and Exercise Science, 1(4), 187-192.
Greenberger, H. B., & Paterno, M. V. (1995). Relationship of knee extensor strength and hopping test performance in the assessment of lower extremity function. Journal Orthopaedic and Sports Physical Therapy, 22(5), 202-206.
Hagen, K.B., Hallen, J., & Harms-Ringdahl, K. (1993). Physiological and subjective responses to maximal repetitive lifting employing stoop and squat technique. European Journal of Applied Physiology and Occupational Physiology, 67(4), 291-297.
Housh, T. J., Thorland, W. G., Tharp, G. D., Johnson, G. O., & Cisar, C. J. (1984). Isokinetic leg flexion and extension strength of elite adolescent female track and field athletes. Research Quarterly for Exercise and Sport, 55(4), 347-350.
Hortobagyi, T., Katch, F. I., & LaChance, P. F. (1989). Interrelationships among various measures of upper body strength assessed by different contraction modes. Evidence for a general strength component. European Journal of Applied Physiology and Occupational Physiology, 58(7), 749-755.
Jameson, T. D., Knight, K. L., Ingersoll, C. D., & Edwards, J. E. (1997). Correlation of isokinetic, isometric, isotonic strength measurements with a one-leg vertical jump. Isokinetics and Exercise Science, 6, 203-208.
Latin, R. W., Berg, K., & Baechle, T. (1994). Physical and performance characteristics of NCAA Division I male basketball players. Journal of Strength and Conditioning Research, 8(4), 214-218.
Murphy, A. J., & Wilson, G. J. (1996). Poor correlations between isometric tests and dynamic performance : relationship to muscle activation. European Journal of Applied Physiology and Occupational Physiology, 73(3-4), 353-357.
O’shea, P. (1995). Quantum strength & power training Corvallis, OR : Patrick’s Books.
Osternig, L. R., Bates, B.T., & James, S. T. (1977) Isokinetic and isometric torque force relationships. Archives of Physical Medicine and Rehabilitation, 58(6), 254-257.
Perrin, D. H. (1993). Isokinetic exercise and assessment Champaign, IL : Human Kinetics Books.
Russell, P.J., & Phillips, S.J. (1989). A preliminary comparison of front and back squat exercises. Research Quarterly for Exercise and Sport, 60(3), 201-208.
Thistle, H. G., Hislop, H. J., Moffroid, M., & Lohman, E.W. (1967). Isokinetic contraction: A new concept of resistive exercise. Archives of Physical Medicine and Rehabilitation, 7, 43-49.
Trafimow, J.H., Schipplein, O.D., Novak, G.J., & Andersson, G.B.(1993). The effects of quadriceps fatigue on the technique of lifting. Spine, 18(3), 364-367.
Walsworth, M., Schneider, R., Schultz, J., Dahl, C., Allison, S., Underwood, F., & Freund, J. (1998). Prediction of 10 repetition maximum for short-arc quadriceps exercise from hand-held dynamometer and anthropometric measurements. Journal Orthopaedic and Sports Physical Therapy, 28(2), 97-104.
Ware, J. S., Clemens, C. T., Mayhew, J. L., & Johnston, T. J. (1995). Muscular endurance repetitions to predict bench press and squat strength in college football players. Journal of Strength and Conditioning Research, 9(2), 99-103.
Wilmore, J. H., Costill, D. L. (1994). Physiology of sport and exercise Champaign, IL : Human Kinetics Books.
Wilson, G. H., Murphy, A. J. (1996). The use of isometric tests of muscular function in athletic assessment. Sports Medicine, 22(1), 19-37.
Wilson, G.J., Murphy, A. J., & Walshe, A. D. (1997). Performance benefits from weight and plyometric training: effects of initial strength level. Coaching and Sport Science Journal,2(1), 3-8.
Wilson, G. J., Walshe, A. D., & Fisher, M. R. (1997). The development of an isokinetic squat device: reliability and relationship to functional performance. European Journal of Applied Physiology and Occupational Physiology, 75(5), 455-461.