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Journal of the Korean Academy of Rehabilitation Medicine 2007;31(5):541-546.
Comparison of Exercise Indexes between Knee Extension-Flexion Exercise and Treadmill Exercise.
Jang, Byung Hong , Yoon, Tae Sik , Park, Gi Young , Lee, So Young , Bae, Ha Suk
1Department of Rehabilitation Medicine, Ewha Womans University College of Medicine, Korea. freshai@naver.com
2Department of Rehabilitation Medicine, The Catholic University of Daegu College of Medicine, Korea.
3Department of Rehabilitation Medicine, Keimyung University College of Medicine, Korea.
무릎관절 신전-굴곡운동과 트레드밀 운동에서 나타난 운동지표의 비교
장병홍, 윤태식, 박기영1, 이소영2, 배하석
이화여자대학교 의과대학 재활의학교실, 1대구가톨릭대학교 의과대학 재활의학교실, 2계명대학교 의과대학 재활의학교실
Abstract
Objective
To obtain clinical usefulness of knee extension- flexion exercise by comparing the exercise indexes between treadmill exercise and knee extension-flexion exercise and to collect reference of exercise indexes using knee extension-flexion exercise.
Method
Sixty four young healthy subjects participated in two modes of exercise. Subjects performed exercise using isokinetic dynamometer in one leg knee extension-flexion exercise and treadmill running using Bruce protocol in treadmill exercise. We recorded oxygen consumption, heart rate during rest and exercise.
Results
When comparing exercise indexes using treadmill exercise, we obtained relative exercise indexes using knee extension-flexion exercise, male 15.96%, female 15.77% in work rate, male 48.46%, female 52.53% in peak oxygen consumption, male 73.57%, female 80.82% in peak heart rate, male 65.97%, female 65.20% in oxygen pulse, male 56.07%, female 62.50% in peak tidal volume, male 82.56%, female 82.53% in peak respiratory rate, male 47.79%, female 49.48% in peak minute ventilation. In dynamic variables, we obtained male 266.82%, female 292.98% in ratio increase in oxygen consumption to increase in work rate.
Conclusion
Knee extension-flexion exercise showed enough response to evaluate cardiorespiratory function through low work rate. Therefore knee extension-flexion exercise may be used for an exercise tolerance test in patients who cannot perform established exercise tolerance test. (J Korean Acad Rehab Med 2007; 31: 541-546)
Key Words: Knee extension-flexion exercise, Cardiovascular function


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