Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/14292
Title: 
Aerobic energy contribution to maximal exercise in children
Authors: 
Keywords: 
Oxidative metabolism
Wingate Anaerobic Test
Issue Date: 
2006
Citation: 
Chia, M. (2006). Aerobic energy contribution to maximal exercise in children. Biology of Sport, 23(2), 117-125.
Abstract: 
The aerobic energy contribution to a 30-s Wingate Anaerobic Test (WAnT30 s) was examined in 18 boys and 18 girls aged 10-12 years. Participants completed an incremental test to volitional exhaustion to determine peak oxygen uptake (VO2) and a WAnT30 s on two separate occasions on a cycle ergometer (Monark 834E). VO2 during the tests was monitored breath-by-breath using an on-line gas analysis system (SensorMedics). WAnT30 s VO2 amounted to 67% and 73% of peak VO2 in boys and girls, respectively. By assuming extreme mechanical efficiency (ME) values of 15% and 35%, the aerobic contributions to the WAnT30 s in boys and girls were between 16% and 45%. Peak VO2 and WAnT30 s power were higher in boys than in girls but there was no sex difference in the aerobic energy contribution to the WAnT30 s for the same assumed ME. The magnitude of the aerobic energy contribution to the WAnT30 s reflected plausibly a swift oxygen uptake response to maximal intensity exercise and perhaps a reduced reliance on non-oxidative metabolism in boys and girls.
URI: 
ISSN: 
0860-021X
Appears in Collections:Journal Articles

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