Heisz, Jennifer J Enjoyment for High-Intensity Interval Exercise Increases during the First Six Weeks of Training: Implications for Promoting Exercise Adherence in Sedentary Adults. [electronic resource] - PloS one 2016 - e0168534 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1932-6203 Standard No.: 10.1371/journal.pone.0168534 doi Subjects--Topical Terms: AdolescentAdultExerciseFemaleHappinessHealth PromotionHigh-Intensity Interval TrainingHumansMaleOxygen ConsumptionPatient CompliancePhysical EndurancePhysical ExertionPleasureSedentary BehaviorYoung Adult