Diet and Short Term Plasma Lipoprotein-Lipid Changes after Exercise in Trained Men

in International Journal of Sport Nutrition and Exercise Metabolism

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Roger G. Bounds
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Steven E. Martin
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Peter W. Grandjean
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Barbara C. O’Brien
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Cindi Inman
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Stephen F. Crouse
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DOI:
https://doi.org/10.1123/ijsnem.10.2.114
Keywords:
acute exercise; lipids; humans
In Print:
Volume 10: Issue 2
Page Range:
114–127
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To test the effect of diet on the short-term lipid response to exercise, fourteen moderately trained (VO2max: 50.2 ± 6.7 ml/kg/min), healthy men (mean age: 28 ± 4 years) were alternately fed a high fat (60±6.7% fat) and a high carbohydrate (63 ± 3.2% carbohydrate) isoenergetic diet for 2 weeks in a randomized crossover design. During the last 4 days of the treatments, fasting total cholesterol, triglyceride. HDL-cholesterol, and HDL3-cholesterol were measured the day before, and again immediately, 24 hr. and 48 hr after exercise (4190 kJ, 70% VO2max). LDL-cholesterol and HDL2-cholesterol were calculated. Lipid concentrations were adjusted for plasma volume changes after exercise. A 2 (diet) × 4 (time) ANOVA with repeated measures revealed no significant interaction between the diet and exercise treatments. Furthermore, diet alone did not influence lipid concentrations in these trained men. Exercise resulted in an increase in HDL-C (10.7%) and HDL3-C (8.5%) concentrations and a concomitant fall in triglyceride (-25%) and total cholesterol (-3.5%). Thus, we conclude that diet composition does not affect the short-term changes in blood lipids and lipoproteins that accompany a single session of aerobic exercise in moderately trained men.

R.G. Bounds. S.E. Martin. P.W. Grandjean. and S.F. Crouse are with the Applied Exercise Science Laboratory, Department of Health and Kinesiology, Texas A&M University, College Station, TX 77843. B.C. O’Brien is with the Department of Biochemistry and Biophysics. Texas A&M University, College Station, TX 77843. C. Inman is with Washington University, St. Louis, MO 63112-1746.

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International Journal of Sport Nutrition and Exercise Metabolism

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