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https://hdl.handle.net/2440/38979
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DC Field | Value | Language |
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dc.contributor.author | Roffey, D. | - |
dc.contributor.author | Luscombe-Marsh, N. | - |
dc.contributor.author | Byrne, N. | - |
dc.contributor.author | Hills, A. | - |
dc.contributor.author | Bellon, M. | - |
dc.contributor.author | Tsopelas, C. | - |
dc.contributor.author | Kirkwood, I. | - |
dc.contributor.author | Wittert, G. | - |
dc.date.issued | 2005 | - |
dc.identifier.citation | Asia Pacific Journal of Clinical Nutrition, 2005; 14(1):83-90 | - |
dc.identifier.issn | 0964-7058 | - |
dc.identifier.issn | 1440-6047 | - |
dc.identifier.uri | http://hdl.handle.net/2440/38979 | - |
dc.description.abstract | The aim of this study was to evaluate the utility of the [¹⁴C]-sodium bicarbonate/urea technique to detect physical activity-induced increases in total energy expenditure in free-living healthy men. Thirteen healthy males aged 34.1 ± 11.7 yrs with body mass index 24.1 ± 3.1 kg/m2 were studied on three separate occasions, during which [¹⁴C]-bicarbonate was infused over 48-hours and urine was collected during the second 24-hours. On three separate occasions and in random order, subjects either remained sedentary, or performed a bout of physical activity on an electro-magnetically braked cycle ergometer sufficient to increase energy expenditure by 7% or 11% above predicted sedentary total energy expenditure. Urine samples were analyzed to evaluate the amount of [¹⁴C]-bicarbonate incorporated into urinary urea, thereby reflecting the amount of CO₂ produced per day, and upon conversion, the number of kilojoules of energy expended in 24-hours. All 13 subjects successfully completed the two physical activity treatments and there were no adverse events. As measured by the [¹⁴C]-urea assay, mean total energy expenditure values were not significantly different between sedentary activity (17902 ± 905 kJ/day), the physical activity treatment designed to increase TEE by 7% (17701 ± 594 kJ/day) and the physical activity treatment designed to increase TEE by 11% (18538 ± 485 kJ/day) (P=0.668). In conclusion, although the [¹⁴C]-sodium bicarbonate/urea technique was well tolerated and did not interfere with normal daily activities, it was not able to accurately measure physical activity-induced increases in EE in the range of 7-11% above predicted sedentary total energy expenditure. | - |
dc.description.statementofresponsibility | Darren M Roffey, Natalie D Luscombe, Nuala M Byrne, Andrew P Hills, Max Bellon, Chris Tsopelas, Ian D Kirkwood and Gary A Wittert | - |
dc.language.iso | en | - |
dc.publisher | H E C Press | - |
dc.rights | Copyright © 2001-2005 Healthy Eating Club | - |
dc.source.uri | http://www.healthyeatingclub.org/APJCN/Volume14/vol14.1/fullArticles/Roffey.pdf | - |
dc.subject | energy expenditure | - |
dc.subject | carbon dioxide production | - |
dc.subject | exercise prescription | - |
dc.subject | sodium bicarbonate | - |
dc.subject | urea | - |
dc.title | Use of [¹⁴C]-sodium bicarbonate/urea to measure physical activity induced increases in total energy expenditure in free-living healthy males | - |
dc.title.alternative | Use of [(14)C]-sodium bicarbonate/urea to measure physical activity induced increases in total energy expenditure in free-living healthy males | - |
dc.type | Journal article | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Luscombe-Marsh, N. [0000-0001-9690-4722] | - |
dc.identifier.orcid | Wittert, G. [0000-0001-6818-6065] | - |
Appears in Collections: | Aurora harvest Medicine publications |
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