Hagerman, F C The effects of breathing 100 percent oxygen during rest, heavy work, and recovery. [electronic resource] - Research quarterly Dec 1968 - 965-74 p. digital Publication Type: Journal Article ISSN: 0034-5377 Subjects--Topical Terms: Analysis of VarianceHeart RateHumansHyperventilationOxygen ConsumptionPhysical ExertionRespirationRestSpirometry