passages.id: 739
passages.type: sentence
passages.text: A tendency towards increased plasma 6-keto-prostaglandin F1 alpha concentration and decreased serum thromboxane B2 concentration was found during the period of regular exercise , but prostaglandin E2 concentrations remained unchanged .
entities.id: 740
entities.type: intervention
entities.text: regular exercise
entities.id: 741
entities.type: outcome
entities.text: plasma 6-keto-prostaglandin F1 alpha concentration
entities.id: 742
entities.type: outcome
entities.text: serum thromboxane B2 concentration
entities.id: 743
entities.type: outcome
entities.text: prostaglandin E2 concentrations