Nutrition Research and Practice

The Korean Nutrition Society (한국영양학회)
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Eating habits, obesity related behaviors, and effects of Danhak exercise in elderly Koreans

  • Ha, Ae-Wha (Department of Food & Nutrition/Health Sciences Research Institution, College of Health Sciences, Korea University) ;
  • Kim, Jong-Hyun (Department of Food Science, Changwon College) ;
  • Shin, Dong-Joo (Department of Food Science, Changwon College) ;
  • Choi, Dal-Woong (Department of Environmental Health, College of Health Sciences, Korea University) ;
  • Park, Soo-Jin (Department of Oriental Medical Food and Nutrition, Semyung University) ;
  • Kang, Nam-E (Department of Food Science, Eulji University) ;
  • Kim, Young-Soon (Department of Food & Nutrition, College of Health Sciences, Korea University)
  • Received : 2010.04.07
  • Accepted : 2010.07.09
  • Published : 2010.08.30
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Abstract

The aims of this study were to evaluate obesity-related dietary behaviors and to determine long-term exercise effects on obesity and blood lipid profiles in elderly Korean subjects. A total of 120 subjects, aged 60-75 yr, were recruited, and obesity-related dietary behaviors were determined. An exercise intervention was conducted with 35 qualified elderly females for 6 months, and body composition and blood lipids were measured 6 times at 4 week intervals. At baseline, mean BMI ($kg/m^2$) was 24.8 for males and 23.1 for females. The females had better eating habits than the males and were more concerned with reading nutrition labels on food products (P < 0.001); they also preferred convenience foods less than the male subjects (P < 0.05). Obese individuals were more likely than overweight or normal weight individuals to misperceive their weight (P < 0.001). Those with a high BMI responded feeling more depressed (P < 0.01), lacking self-confidence (P < 0.01), and feeling isolated (P < 0.01) as well as having more difficulty doing outdoor activities (P < 0.01). After exercise, body fat (%) and WHR were significantly reduced (P < 0.05), while body weight and BMI were also decreased without statistical significance. Total cholesterol and blood HDL were significantly improved (207.1 mg/dl vs. 182.6 mg/dl, HDL: 45.6 mg/dl vs. 50.6 mg/dl, P < 0.05). Other benefits obtained from exercise were improvements in self-confidence (26.4%), movement (22.6%), stress-relief (18.9%), and depression (13.2%). In conclusion, elderly females had better eating habits and were more concerned with nutrition information and healthy diets compared to elderly males. However, misperceptions of weight and obesity-related stress tended to be very high in females who were overweight and obese, which can be a barrier to maintain normal weight. Long-term Danhak practice, a traditional Korean exercise, was effective at reducing body fat (%) and abdominal obesity, and improved lipid profiles, self-confidence, and stress.

Keywords

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