Articles : Alterations in Blood Lipid and Hypothalamic-pituitary-axis Hormone Consequent to Regular Aerobic Exercise

Journal of Exercise Nutrition & Biochemistry 2003;7(1):49-54.

Abstract

The purpose of this study was to evaluate the effect of regular aerobic exercise on blood lipid and HPA axis hormone in middle-aged women. The subject for this study were 14 healthy women who were 35-45years. They didn`t have any history cardiovascular disease. The subject were divided into two group: swimming (experimental) group (n=7) and control group (n=7). The swimming exercise protocol for experimental group consisted of a 10-minute warm-up, 40-minute main exercise, and 10-minute cool down. Exercise intensity was range from 55% to 80%HRmax. Exercise was performed 5-6 days/a week during 16 weeks. The result of this study as follows. 1. The change of blood lipid variable. 1) The TC of an experimental group was decreased significantly, whereas that of a control group was no significant different after exercise. 2) The TG of an experimental group was decreased significantly, whereas that of a control group was no significant different after exercise. 3) The HDL-C of an experimental group were increased significantly whereas that of a control group was no significant different after exercise. 4) The ACTH of an experimental group were increased significantly, whereas that of a control group was no significant different after exercise. 5) The cortisol of an experimental group were increased significantly, whereas that of a control group was no significant different after exercise. In conclusion, swimming exercise performed during 16 weeks in this study was affected positive change in blood lipid and HPA axis hormone. Therefore we think the swimming exercise seems to be a available method for improving cardiovascular disease and lipid utilization.

Key Words: blood lipid, ACTH, Cortisol