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Br J Clin Pharmacol. 1996 May;41(5):381-7.

A comparison of the effects of fluvastatin and bezafibrate on exercise metabolism: a placebo-controlled study in healthy normolipidaemic subjects.

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Department of Medicine, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.


1. We have examined the interaction between aerobic exercise and lipid-lowering drugs in a crossover study of 16 healthy normolipidaemic volunteers who each received 21 days' treatment with bezafibrate (400 mg), fluvastatin (40 mg), and placebo, in random order. 2. Fluvastatin treatment reduced pre-exercise total cholesterol (TC) by 23% (P < 0.0001), low-density lipoprotein cholesterol (LDL-C) by 33% (P < 0.0001), and plasma triglycerides by 11%, compared with pre-treatment values. Bezafibrate reduced TC by 11% (P < 0.01); LDL-C by 9%; and plasma triglycerides by 40% (P < 0.01), compared with pre-treatment values. 3. During exercise, in comparison with placebo, and fluvastatin treatment, respectively, bezafibrate significantly reduced mean fat oxidation: 31% vs 39%, P = 0.035, 31% vs 39%, P = 0.002, plasma free fatty acid (FFA) availability, e.g. after 90 min of exercise: (t90) 520 vs 662 mumol 1(-1), P = 0.054, 520 vs 725 mumol 1(-1), P = 0.016, and plasma levels of glycerol (t90): 59 vs 74 mumol 1(-1), P = 0.037, 59 vs 73 mumol 1(-1), P = 0.016. Fluvastatin had no impact on fat metabolism in comparison with placebo. 4. Reduced plasma FFA concentration and lower fat oxidation during prolonged exercise on bezafibrate treatment may be due to an inhibition of hepatic acetyl coenzyme A carboxylase, resulting in reduced FFA release from adipose tissue. 5. The possibility that impaired fat metabolism on fibrates could induce premature fatigue during exercise of moderate duration and intensity should be examined in hyperlipidaemic patients.

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