The Korean Journal of Physical Education (한국체육학회지)

Korean Alliance for Health: Physical Education: Recreation:and Dance (한국체육학회)
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Effects of 9weeks aerobic exercise on serum Leptin, Insulin and Cortisol concentration in female with moderate mental retardation

9주간 유산소 운동이 중도 정신지체 여성의 혈청 Leptin, Insulin, Cortisol 농도에 미치는 영향

Kwon, Young-Woo
권영우

  • Published : 20040000
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Abstract

The purpose of this study was to investigate the effects of 9weeks training program on fat(%), Vo2max, leptin, insulin and cortisol. Twenty women with mental retardation (age 27.2±5.15, weight 51.5±7.12) who had not performed regular exercise in previous 2 year were studied. Subjects were divided into control (n=10) and experimental group (n=10) and had similar intelligence quotients (IQs) as previously determined on the Stanford Binet Scale. All the subjects were classified as a moderate mental retardation status as their intelligent quotients (IQs) was shown from 35 to 49. The training program consisted of treadmill or cycle ergometer exercise (25-30minutes, 50-70% peak heart rate) and worm up, cooling down (10minutes respectively). All parameters were measured and analysed before and after training. All exercise sessions took place on a treadmill, performing 20 minuttes of running at 2-4mile/hour (3% degree). After 20 mininut work the rate, work rate was gradually increased (0.5mile /hour every 2minutes, 1% degree elevation) until exhaustion. Blood sample were obtained before, immediately after, and 30minutes later after an incremental treadmill test to exhaustion. Significant decrease in body weight and body fat(%) were shown by the chronic exercise while the increased Vo2max was identified by the chronic exercise. The concentration of leptin did not show any change with acute (including 30minutes later after completion of maximal exercise test) and chronic exercise. Significant decrease in serum insulin concentration was shown by the acute exercise and chronic exercise enhanced that exercise induced decrease after exhaustion. Insulin concentration returned to near-pre exercise level with 30 minutes later. Acute and chronic exercise did not induce any change in cortisol concentration. In conclusion, chronic exercise of mentally retarded adult women showed decreased body fat and enhanced metabolic capacity.

Keywords

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