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Cardiovasc Res. 1985 Mar;19(3):177-80.

Effect of aspirin and indomethacin on exercise-induced changes in blood pressure and limb blood flow in normal volunteers.


To evaluate the possible role of prostaglandins in exercise-induced changes in blood pressure and limb blood flow we have compared the effects of aspirin and indomethacin in a double-blind placebo controlled study in a group of normal volunteers. Nine men undertook treadmill exercise after pretreatment with placebo, aspirin and indomethacin. Indomethacin caused a greater increase in systolic blood pressure during exercise than aspirin (p less than 0.05) and a smaller fall in diastolic pressure than either placebo or aspirin (p less than 0.02 and p less than 0.01). Compared with placebo both aspirin and indomethacin attenuated to a similar degree the increase in calf blood flow (p less than 0.05 and p less than 0.03) and the changes in forearm blood flow following exercise. These results suggest that although aspirin and indomethacin both inhibit prostaglandin production they have different effects on exercise-induced changes in blood pressure. They have, however, similar effects on limb blood flow.

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