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肥胖青少年心率變異度對運動訓練的反應

Exercise Training and Heart Rate Variability in Obese Adolescents

摘要


Purpose: Researches revealed that obese people have lower autonomic activation, especially the parasympathetic activation when compared to normal group; researches also suggested that exercise can improve the activation of autonomic nerve system. Heart rate variability (HRV) is noninvasive quantitative method for assessing the autonomic nervous activity. Therefore, this study was designed to investigate the effect of 10 week exercise training program on heart rate variability in obese adolescents. Methods: Twenty one obese adolescents (age: 13.21±0.39 yr, height: 161.15±6.74 cm, weight: 80.05±15.75 kg, and BMI>27) without regular exercise habit, and without any of the hypertension, diabetes, and cardiovascular diseases involved in a 10 week run/walk exercise program, three times per week, 30 minutes each session. Exercise loading was controlled in the heart rate range between 138 and 148 per minutes. Then the heart rate variability was compared before and after exercise training program. Results: The exercise training program in the study resulted in a significant decrease in the resting heart rate, and a significant increase in most of the time domain and frequency domain. Conclusions: Ten week of run/walk training program has significantly improved the parasympathetic nervous activation of the obese adolescents. This result also suggested that the autonomic nervous system (ANS) of the obese adolescents can be improved by exercise training program. The autonomic nervous system plays an important role in metabolism; this is a positive encouragement for the obese adolescents to involve in any of exercise program.

並列摘要


Purpose: Researches revealed that obese people have lower autonomic activation, especially the parasympathetic activation when compared to normal group; researches also suggested that exercise can improve the activation of autonomic nerve system. Heart rate variability (HRV) is noninvasive quantitative method for assessing the autonomic nervous activity. Therefore, this study was designed to investigate the effect of 10 week exercise training program on heart rate variability in obese adolescents. Methods: Twenty one obese adolescents (age: 13.21±0.39 yr, height: 161.15±6.74 cm, weight: 80.05±15.75 kg, and BMI>27) without regular exercise habit, and without any of the hypertension, diabetes, and cardiovascular diseases involved in a 10 week run/walk exercise program, three times per week, 30 minutes each session. Exercise loading was controlled in the heart rate range between 138 and 148 per minutes. Then the heart rate variability was compared before and after exercise training program. Results: The exercise training program in the study resulted in a significant decrease in the resting heart rate, and a significant increase in most of the time domain and frequency domain. Conclusions: Ten week of run/walk training program has significantly improved the parasympathetic nervous activation of the obese adolescents. This result also suggested that the autonomic nervous system (ANS) of the obese adolescents can be improved by exercise training program. The autonomic nervous system plays an important role in metabolism; this is a positive encouragement for the obese adolescents to involve in any of exercise program.

參考文獻


王顯智、黃美雪(2007)。心率變異度的發展與臨床應用。中華體育。21(3),1-9。
行政院衛生署國民健康局( 2006 )。量腰圍,測三高, 中老年病不上身。2011年3月14日,取自:http://www.bhp.doh.gov.tw/bhpnet/portal/PressShow.aspx?No=200712250176
行政院衛生署國民健康局( 2011) 。 2011年3月14日,取自:http://www.bhp.doh.gov.tw/health100/
Amano, M.,Kanda, T.,Ue,H.,Moritani, T.(2001).Exercise training and autonomic nervous system activity in obese individuals.Medicine and Science in Sports and Exercise.33(8),1287-1291.
American College of Sports Medicine(2006).ACSM 's Resource manual for guidelines for exercise testing and prescription.Baltimore, MD:

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