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Peak cardiac power output in healthy, trained men
Author(s) -
Schlader Zachary J.,
Mündel Toby,
Barnes Matthew J.,
Hodges Lynette D.
Publication year - 2010
Publication title -
clinical physiology and functional imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.608
H-Index - 67
eISSN - 1475-097X
pISSN - 1475-0961
DOI - 10.1111/j.1475-097x.2010.00959.x
Subject(s) - medicine , cardiac output , cardiology , population , incremental exercise , physical therapy , bicycle ergometer , limits of agreement , vo2 max , heart rate , blood pressure , hemodynamics , nuclear medicine , environmental health
Summary Previous investigations into peak cardiac power output (CPO peak) have been limited to clinical populations and healthy, but non‐athletic adults, and normative data on trained individuals would allow a greater understanding of this parameter. Therefore, we recruited eight healthy, well‐trained male cyclists. Peak oxygen consumption ( peak) was assessed using an incremental ergometer test, and following a 40‐min recovery period, peak cardiac output (T peak) was measured during a constant load test that elicited peak (±5%) using the Defares CO 2 rebreathing technique. CPO peak was calculated as described by Cooke et al. (1998). Mean (±SD) values during the constant load test were: peak, 4·94 ± 0·41 l min −1 ; T peak, 36·5 ± 3·7 l min −1 ; mean arterial pressure, 123 ± 8 mmHg and CPO peak, 9·9 ± 1·0 W. These results demonstrate CPO peak in a well‐trained population to be approximately twice those observed in healthy, but non‐athletic adults. The current data provide useful information regarding the upper limits and possible ‘trainability’ of cardiac pumping capacity for sedentary and clinically compromised individuals.