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Exerc Sci > Volume 12(3); 2003 > Article

Exercise Science 2003;12(3): 483-494.

비만여성의 혈청 지질 양상에 대한 비 통제 보행운동프로그램의 효과

김현수

서울과학기술대학교

ABSTRACT

Kim, H.S. Effects of unsupervised walking exercise program on serum lipid profiles in mildly obese women. Exercise Science, 12(3): 483-494, 2003. It has been found that physical activity is closely associated with a decreased risk of coronary artery disease. This study examined the influence on the lipoprotein profiles in moderately obese women of a 12-weeks unsupervised walking program with no dietary restrictions. Subjects were assigned to either an uncontrolled walking exercise program (UW) or a controlled aerobic dance program (CAD). Ten women (mean age 51.0 years) participated in the UWE for 12 weeks, while 13 women did in the CAD (mean age 52.4 years). Each subject on the UW was subjected to a training to sustain certain levels of heart rate, or certain ratings of perceived exertion corresponded to ventilatory threshold (VT) (72±5.4% of maximal heart rate). The CAD group participated in the aerobic dance three times a week for 12 weeks, which is corresponded to VT. Venous plasma cholesterol (TC), triglycerides, glucose (BG), and high density lipoproten cholesterol (HDLC) were measured after a 12 h overnight fast in two groups. Monitored food intake initially increased, then progressively decreased to below pretraining levels, which is not statistically significant under the UW program (p>.05). The net differences (between pre-posttraining changes in the CAD group) were statistically significant for BG (8.7 mg/㎗), HDLC (10.1 mg/㎗), and ratio of HDLC to TC (0.96). Except for BG (6.8 mg/㎗), these values were not statistically significant on the UWE, but HDLC was significantly increased (33-41%) in four subjects with lower HDLC (<40 mg/㎗). These findings suggest that, even though moderate walking training alone may not reach a sufficient threshold to favorably affect normal lipoprotein profiles, it may increase lower HDLC concentration in sedentary female.

Key words: Unsupervised walking exercise, Controlled aerobic dance, Lipoprotein profiles, Obese women