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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/32623

Title: The Effect of Muscle Mass during Priming Exercise on Pulmonary Oxygen Uptake and Cardiac Output Kinetics
Authors: Seeto, Ryan
Advisor: Thomas, Scott
Department: Exercise Sciences
Keywords: Cardiac Output
Pulmonary Oxygen Uptake
Priming Exercise
Issue Date: 16-Aug-2012
Abstract: The effective of additional muscle mass in a priming exercise on cardiac output (Q) and pulmonary oxygen uptake (VO2) kinetics (mean response time, s) were determined in cyclists. Outcomes were measured over four trials, each consisting of a 6-minute legs alone (UAL) or arms and legs (ULO) warm-up, 3 minute passive recovery, then 6 minutes leg cycling (PAL, PLO; respectively). Q was significantly higher preceding exercise onset with PAL compared to PLO or ULO (0.72 ± 0.13 vs. 0.58 ± 0.09, 0.43 ± 0.09 L∙min-1; respectively, P < 0.05). Q kinetics did not differ between unprimed (ULO: 38.9 ± 8.6) and primed exercise regardless of muscle mass (PLO: 38.6 ± 11.0; PAL: 40.7 ± 11.3). VO2 kinetics were faster (P < 0.05) with PAL (36.9 ± 6.0) compared to ULO (58.7 ± 10.5). Muscle mass employed during priming exercise had only slight effect on subsequent VO2 and Q responses.
URI: http://hdl.handle.net/1807/32623
Appears in Collections:Master

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