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J.Health Sci., 55(4), 611-618, 2009
Physical Activity, Physical Fitness and Coronary Heart Disease Risk Factors in Collegiate Women
Hiroyuki Imamura,*, a Yoshitaka Yoshimura,b
Kyota Okishima,c Kazuhide Iide,d
Reika Masuda,e Yuka Noda,e
Reina Kishida,e and Atsumi Nagatae
aFaculty of Health Management, Department of Health and Nutrition, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo-shi, Nagasaki 859-3298, Japan,
bDepartment of Food and Nutrition, Beppu University, 82 Kitaishigaki, Beppu-shi, Ohita 874-8501, Japan,
cSchool of Health Care Sciences, Himeji Dokkyo University, 7-2-1 Kamiohno, Himejishi, Hyogo 670-8524, Japan,
dDepartment of Physical Education, International Pacific University, 721 Kannonji setocho, Higashi-ku, Okayama 709-0863, Japan and
dDepartment of Nutritional Sciences, Nakamura Gakuen University, 5-7-1 Befu, Johnan-ku, Fukuoka 814-0198, Japan
The purpose of this study was: to validate metabolic equivalents (METs)·hr/week by comparing with maximal oxygen uptake (VO2max) as a measure of physical activities, to examine the relationships between METs·hr/week, VO2max, and coronary heart disease (CHD) risk factors according to the goals of METs·hr/week and VO2max in ml·kg-1·min-1 for health promotion set in the Exercise Guide 2006, and to examine which is more related with CHD risk factors: METs·hr/week or VO2max in ml·kg-1·min-1? Subjects were 116 collegiate women. MET intensities were assigned to each specific activity. VO2max was estimated with a bicycle ergometer. METs·hr/week was significantly correlated (r=0.514, p<0.01) with VO2max in ml·kg-1·min-1. After adjusting appropriate confounding factors in the forward stepwise multiple regression analyses, METs·hr/week was significantly positively related with high-density lipoprotein cholesterol (HDL-C), while the estimated VO2max in ml·kg-1·min-1 was significantly positively related with HDL-C and total cholesterol (TC) and negatively related with log systolic blood pressure (SBP). After adjusting for body mass index (BMI) in the analysis of covariance, the highest category of METs·hr/week (≥23) had significantly higher HDL-C than other lower categories. The highest category of VO2max (≥33ml·kg-1·min-1) had significantly higher HDL-C and TC and lower SBP than the lowest category. In conclusion, METs·hr/week was valid measures for quantifying physical activity, and the goals of METs·hr/week and VO2max in ml·kg-1·min-1 set in the Exercise Guide 2006 were valid. VO2max in ml·kg-1·min-1 was related to greater number of CHD risk factors than METs·hr/week in young women.
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