- Long Term Effects of Exercise on Waist-Hip Ratio, BMI, HbA1c.
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Keun Hee An, Kyung Ah Han, Kyung Wan Min
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Korean Diabetes J. 2005;29(6):526-532. Published online November 1, 2005
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 Abstract
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- BACKGROUND
Korean Diabetes Association recommends exercise over than 3 times per week. But the compliance is poor and researches about physical activity of Korean type 2 diabetics are limited. The purpose of this study were to investigate the effectiveness of self report methods on the adherence to physical training and the long term effects of exercise on waist hip ratio, BMI and HbA1c. METHODS: The subjects were trained to exercise over 3 times per week with the load of anaerobic threshold(AT). During 1 year 7 times follow up education were carried out with self -report exercise diary by exercise physiologist bimonthly. The subjects were divided into 3 groups according to duration of exercise : Exercise group(> or =12 months), new exercise group(> or =6 months) control group(<6 months). RESULTS: The subjects were total 27 patients (male 13, female 14). Mean age was 52.4 +/- 7.4 and the duration of DM was 4.0 +/- 3.7 yea rand mean BMI was 25.5 +/- 3.9 year. There were no differences in ratio of BMI after exercise training among groups. Waist hip ratio increased in all groups but the ratio of change in waist hip ratio was significantly lower in exercise group than in control group. The ratio of change in BMI was positively correlated with the ratio of change in muscle mass and percent fat. But the ratio of change in percent fat(r=0.835) was more prominent than in muscle mass(r=0.686). The Mets of peak exercise was significantly increased in all groups. CONCLUSION: The physical training using the self-report method was effective in promoting physical activity. The effects of physical training were detected earlier in the change of waist hip ratio than in BMI change. Exercise capacity was increased not only by exercise training but also metabolic control .
- The Study of Physical Activity in the Korean with Type 2 Diabetes.
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Kyung Wan Min, Keun Hee An, Tae Seo Sohn, Yong Moon Park, Yeong Sun Hong, Yeon Su Kim, Yi Byeong Park, Kang Seo Park, Gwan Woo Lee, In Ju Kim, Kyung Ah Han, Jae Myoung Yu, Hyun Shik Son, Sei Hyun Baik, Won Cheol Lee, Chung Gu Cho, Hyoung Woo Lee, Sung Woo Park
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Korean Diabetes J. 2005;29(6):517-525. Published online November 1, 2005
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Abstract
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- BACKGROUND
Despite the importance of exercise, little is known about the epidemiology of exercise among persons with diabetes in the Korea. We do not have any standard method to evaluate physical activity of diabetics. So exercise committee of Korean diabetic association decided to survey the physical activities of Korean type 2 diabetic patients. METHODS: Cross-sectional study including 1073 type 2 diabetics (509 males, 564 females) over 18 age. 34 general hospitals collected data about physical activity from Dec. 2004 to Feb.2005. Data were randomly collected by interviewers using numeration table. Respondents were asked about the physical activities or exercise during recent 7 days and frequency, duration of each activity. To compare with normal population, we use 2001 KNHANES (Korean National Health and Nutrition Examination Survey) results. RESULTS: People with type 2 diabetes were more likely to report exercising regularly than people without this disease (52.5% vs. 27.5%) (p<0.0001), but 47.5% of type 2 diabetics didn't take exercise. Walking time of type 2 diabetics wasmore than that of people without this disease (p<0.0001). Type 2 diabetics exerting <700kcal/week of energy expenditure with physical activity were 45.5% in the exercising type 2 diabetics (males:44.2%, females:55.8%). Energy expenditure was positively correlated with frequency of physical exercise and exercise period (p<0.001). CONCLUSION: 47.5% of Korean type 2 diabetics and 72.5% of normal population did not take exercise. 45.5% of exercising type 2 diabetics exerted energy expenditure under 700kcal/week with physical activity. Therefore, various programs for initiating physical activity and increasing energy expenditure are required.
- The Effects of Aerobic Training Versus Resistance Training in Non-obese Type 2 Diabetics.
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Keun Hee An, Kyung Wan Min, Kyung Ah Han
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Korean Diabetes J. 2005;29(5):486-494. Published online September 1, 2005
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- BACKGOUND: The purpose of this study was to explore the influence of the low intensity resistance exercise training and aerobic exercise training on body composition, physical fitness, and metabolic profiles in non-obese type 2 diabetic patients. METHODS: Participants(N:26) had been randomly assigned to resistance exercise(resistance, N:10), aerobic exercise(aerobic, N:9) and control group(control, N:7). Resistance exercise was carried out at 15~20RM(1RM 60%) and aerobic exercise was carried out at anaerobic threshold(AT). Each exercise group was scheduled to implement the training for twelve weeks, two times per day and five days per week. RESULTS: Body mass index, waist to hip ratio, %fat, FBS, PP2, HbA1c and low-density lipoprotein cholesterol(LDL-C) were significantly decreased after the training period in resistance and aerobic exercise group. Strength endurance, agility and flexibility were significantly improved after the training period in resistance and aerobic exercise groups. There were significant differences in BMI, percent fat, FBS, PP2, METs and HR at anaerobic threshold after the training period in aerobic and control groups. Total cholesterol was significantly decreased after the training period in aerobic exercise groups. Load, heart rate and METs at AT significantly increased after the training period in aerobic group. High-density lipoprotein cholesterol(HDL-C) and balance significantly increased after the training period in resistance group. There were significant differences in strength endurance and agility between two exercise groups and control group. CONCLUSION: This study suggested circuit type resistance exercise might have nearly comparable effects on weight control, body composition, blood glucose control and improvement of insulin resistance in non-obese type 2diabetic patients.
- Evaluation of Physical Capacity and Proper Calculation Method of Exercise Intensity based on Measured Maximal Heart Rate in Korean Type 2 Diabetics.
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Keun Hee An, Kyung Ah Han, Kyung Wan Min
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Korean Diabetes J. 2005;29(5):479-485. Published online September 1, 2005
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Abstract
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Prescription of aerobic exercise for type 2 diabetics in clinical practice is frequently based on exercise intensity at percent heart rate max(60
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