Dietary fat content, serum lipid levels and body weight of exercised rats
Keywords:
Diet, Exercise, Dietary fats, Rats WistarAbstract
Objective
This study analyzed the effects of different amounts of dietary triglycerides on the serum lipids triglycerides and high-density lipoproteins and body weight of inactive and exercised rats.
Methods
Male Wistar rats were divided into two groups: one fed a control diet (7% fat by weight) and another fed a high-fat diet (14% fat by weight). These two groups were further divided into two subgroups: one remained inactive and the other exercised for 8 weeks.
Results
Body weight did not differ among the groups although less food was consumed by the high-fat diet group. Triglyceride levels did not increase with the high-fat diet and HDL-cholesterol only increased in the normal-fat diet, exercised group.
Conclusion
Physical exercise intensity and duration had a stronger influence on HDL-cholesterol levels than on triglyceride levels. The diet would probably need a higher fat content to actually affect serum lipid levels and supposedly increase physical performance.
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