THE INFLUENCE OF BETA-ADRENOCEPTOR BLOCKADE ON THE LIPOLYTIC RESPONSE TO EXERCISE

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Abstract
The influence of .beta.-adrenoceptor blockade on the free fatty acid (FFA) response during and after submaximal exercise was studied in a group of normal volunteers. The study showed that the exercise-induced rise in serum FFA concentrations seen with placebo was reduced after pretreatment with propranolol. Furthermore, the palmitic, stearic, oleic and linoleic acid responses showed progressive attenuation with increasing doses of propranolol. Different .beta. blockers were studied using comparable doses: metoprolol and nadolol had little effect and produced FFA profiles that were similar to placebo whereas the changes on pindolol were comparable with those on propranolol.