2000 年 54 巻 4 号 p. 631-636
A 5 year follow-up study was conducted to investigate the relationships between % changes in serum lipids and blood pressure and corresponding changes in exercise habits in the middle - aged. The subjects were 152 males and 169 females who received a health check-up at 30-years-old during the period between 1990-1992 and then at 35-years-old during the period between 1995-1997.
The results are as follows:
1. In multiple regression analysis, % Δ toriglyceroid (TG) and % Δ AI (atherogenic index) ratio were associated significantly with changes in exercise habits in males (P<0.05) and % Δ high density lipoprotein cholesterol (HDLC) was associated with changes in exercise habits in females (P<0.05). % Δ TG and % Δ HDLC were affected by changes in exercise habits adjusted for BMI, smoking, and drinking. But changes in TC and blood pressure were not affected by changes in exercise habits.
2. In males, % Δ TG was significantly lower in those subjects who started their exercise habit than in the no exercise group and than in those within the ceased exercise group who ceased their exercise during the study period (P<0.05). % Δ AI was significantly lower in the started exercise group than in the no exercise group. Also, the continued exercise group had a signigicantly (P<0.05) lower % Δ AI as compared to the ceased exercise group. In females, % Δ TG was significantly lower in the started exercise group than in the no exercise group (P<0.05). % Δ HDLC was higher significantly in the continued exercise group than in the ceased exercise group (P<0.05).
From the results obtained, it is recommended that the no exercise subjects should have exercise more than once time per week and those with more than 1 time per week maintain their exercise habits.