Influence of moderate exercise on glucose homeostasis and serum testosterone in young men with low HDL-cholesterol level.
Fifty-five healthy sedentary non smoking and non obese 24-26-year-old men with a low serum concentration of HDL-cholesterol were selected for a study of the effect of nine weeks of exercise on glucose homeostasis, and blood testosterone. The participants were randomized into two groups. Twenty-eight subjects were assigned to a nine-week program of submaximal aerobic exercise three times weekly, while 27 were assigned to a non exercising control group. The improvement in physical fitness was assessed by change in estimated oxygen consumption (EVO2 max) that was increased by 15% in the exercise group (p less than 0.001), but remained unchanged in the control group. During the study the body weight of both groups remained essentially unchanged. There was a significant reduction of mean plasma fructosamine in the exercise group, and non significant reduction in serum insulin. Serum testosterone, glycohemoglobin and HDL-cholesterol were not influenced by exercise, while serum triglycerides were significantly reduced.
Raz
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Department of Medicine B, Hadassah University Hospital, Jerusalem, Israel.
Israeli
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A
Rosenblit
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Bar-On
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H
D000328:Adult; D002784:Cholesterol / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood*; D015444:Exercise; D005947:Glucose / Q000378:metabolism*; D006706:Homeostasis; D006801:Humans; D008297:Male; D012016:Reference Values; D013739:Testosterone / Q000097:blood*; D014280:Triglycerides / Q000097:blood
D008076:Cholesterol, HDL; D014280:Triglycerides; D013739:Testosterone; D002784:Cholesterol; D005947:Glucose