Platelet function during physical exercise and recovery in men

Abstract

Twelve healthy, sedentary males (aged 18-24) performed 15 minutes of cycling exercise with a load corre¬sponding to 75% of maximal heart rate. ADP and collagen-induced platelet aggregation, ATP release and platelet count were measured before, immediately and 60 minutes after the exercise. Both ADP and collagen-induced platelet aggregation increased significantly immediately after the exercise. Sixty -minutes after the exercise platelet aggregation tend to decrease and approximated to the resting level. ATP release and platelet count did not change by exercise. Our results indicate that acute severe exercise causes a transient increase of platelet aggregation.