Comparison of fat oxidation over a range of intensities during treadmill and cycling exercise in children

2.50
Hdl Handle:
http://hdl.handle.net/10547/294846
Title:
Comparison of fat oxidation over a range of intensities during treadmill and cycling exercise in children
Authors:
Zakrzewski, Julia K.; Tolfrey, Keith
Abstract:
Substrate metabolism differs between children and adults and is important for weight management during childhood. A direct comparison of fat oxidation over a range of exercise intensities and the estimation of Fatmax (exercise intensity that elicits maximal fat oxidation (MFO)) during treadmill (TM) and cycling exercise (CE) does not appear to be available in children. Fat oxidation and Fatmax were compared during TM and CE in 22 pre- to early pubertal children (9 girls and 13 boys). Fat oxidation was higher for TM compared with CE over a range of absolute and relative exercise intensities and this difference was more pronounced at higher intensities (P ≤ 0.05). Fat oxidation was higher in boys compared with girls at similar relative, but not absolute intensities (P ≤ 0.05). Fatmax was higher during TM compared with CE and higher in boys compared with girls (P ≤ 0.05). The 5% Fatmax zone (range of exercise intensities where fat oxidation was within 5% of MFO) spanned a wider range of intensities for TM compared with CE (P ≤ 0.05). Collectively, these findings suggest that exercise programmes aimed at promoting high rates of fat oxidation in pre- to early pubertal children should include TM rather than CE regardless of exercise intensity. Furthermore, Fatmax values indicate that brisk walking or slow running promotes MFO rates in this population.
Citation:
Zakrzewski, J. & Tolfrey, K. (2011) 'Comparison of fat oxidation over a range of intensities during treadmill and cycling exercise in children', European Journal of Applied Physiology, 112(1), pp.163-171
Publisher:
Springer
Journal:
European Journal of Applied Physiology
Issue Date:
2011
URI:
http://hdl.handle.net/10547/294846
DOI:
10.1007/s00421-011-1965-5
Additional Links:
http://link.springer.com/10.1007/s00421-011-1965-5
Type:
Article
Language:
en
ISSN:
1439-6319; 1439-6327
Appears in Collections:
Applied Sport and Exercise Physiology

Full metadata record

DC FieldValue Language
dc.contributor.authorZakrzewski, Julia K.en_GB
dc.contributor.authorTolfrey, Keithen_GB
dc.date.accessioned2013-06-28T09:41:04Z-
dc.date.available2013-06-28T09:41:04Z-
dc.date.issued2011-
dc.identifier.citationZakrzewski, J. & Tolfrey, K. (2011) 'Comparison of fat oxidation over a range of intensities during treadmill and cycling exercise in children', European Journal of Applied Physiology, 112(1), pp.163-171en_GB
dc.identifier.issn1439-6319-
dc.identifier.issn1439-6327-
dc.identifier.doi10.1007/s00421-011-1965-5-
dc.identifier.urihttp://hdl.handle.net/10547/294846-
dc.description.abstractSubstrate metabolism differs between children and adults and is important for weight management during childhood. A direct comparison of fat oxidation over a range of exercise intensities and the estimation of Fatmax (exercise intensity that elicits maximal fat oxidation (MFO)) during treadmill (TM) and cycling exercise (CE) does not appear to be available in children. Fat oxidation and Fatmax were compared during TM and CE in 22 pre- to early pubertal children (9 girls and 13 boys). Fat oxidation was higher for TM compared with CE over a range of absolute and relative exercise intensities and this difference was more pronounced at higher intensities (P ≤ 0.05). Fat oxidation was higher in boys compared with girls at similar relative, but not absolute intensities (P ≤ 0.05). Fatmax was higher during TM compared with CE and higher in boys compared with girls (P ≤ 0.05). The 5% Fatmax zone (range of exercise intensities where fat oxidation was within 5% of MFO) spanned a wider range of intensities for TM compared with CE (P ≤ 0.05). Collectively, these findings suggest that exercise programmes aimed at promoting high rates of fat oxidation in pre- to early pubertal children should include TM rather than CE regardless of exercise intensity. Furthermore, Fatmax values indicate that brisk walking or slow running promotes MFO rates in this population.en_GB
dc.language.isoenen
dc.publisherSpringeren_GB
dc.relation.urlhttp://link.springer.com/10.1007/s00421-011-1965-5en_GB
dc.rightsArchived with thanks to European Journal of Applied Physiologyen_GB
dc.subjectC600 Sports Scienceen_GB
dc.subjectexerciseen_GB
dc.subjectfat oxidationen_GB
dc.subjectchildrenen_GB
dc.titleComparison of fat oxidation over a range of intensities during treadmill and cycling exercise in childrenen
dc.typeArticleen
dc.identifier.journalEuropean Journal of Applied Physiologyen_GB
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