Comparisons of Daily Energy Intake vs. Expenditure Using the GeneActiv Accelerometer in Elite Australian Football Athletes

Article


Salagaras, Brie S., Mackenzie-Shalders, Kristen L., Nelson, Maximillian J., Fraysse, Francois, Wycherley, Thomas P., Slater, Gary J., McLellan, Chris, Kumar, Kuldeep and Coffey, Vernon G.. 2021. "Comparisons of Daily Energy Intake vs. Expenditure Using the GeneActiv Accelerometer in Elite Australian Football Athletes." Journal of Strength and Conditioning Research. 35 (5), pp. 1273-1278. https://doi.org/10.1519/JSC.0000000000003945
Article Title

Comparisons of Daily Energy Intake vs. Expenditure Using the GeneActiv Accelerometer in Elite Australian Football Athletes

ERA Journal ID9783
Article CategoryArticle
AuthorsSalagaras, Brie S., Mackenzie-Shalders, Kristen L., Nelson, Maximillian J., Fraysse, Francois, Wycherley, Thomas P., Slater, Gary J., McLellan, Chris, Kumar, Kuldeep and Coffey, Vernon G.
Journal TitleJournal of Strength and Conditioning Research
Journal Citation35 (5), pp. 1273-1278
Number of Pages6
Year2021
PublisherLippincott Williams & Wilkins
Place of PublicationUnited States
ISSN1064-8011
1533-4287
Digital Object Identifier (DOI)https://doi.org/10.1519/JSC.0000000000003945
Web Address (URL)https://journals.lww.com/nsca-jscr/fulltext/2021/05000/comparisons_of_daily_energy_intake_vs__expenditure.14.aspx
Abstract

To assess validity of the GeneActiv accelerometer for use within an athlete population and compare energy expenditure (EE) with energy and macronutrient intake of elite Australian Football athletes during a competition week. The GeneActiv was first assessed for utility during high-intensity exercise with indirect calorimetry. Thereafter, 14 professional Australian Football athletes (age, 24 ± 4 [SD] y; height, 1.87 ± 0.08 m; body mass, 86 ± 10 kg) wore the accelerometer and had dietary intake assessed via dietitian-led 24-hour recalls throughout a continuous 7 days of competition period (including match day). There was a significant relationship between metabolic equivalents and GeneActiv g·min-1(SEE 1.77 METs; r2= 0.64; p < 0.0001). Across the in-season week a significant difference only occurred on days 3 and 4 (day 3: energy intake [EI] EI 137 ± 31 kJ·kg-1·d-1; 11,763 ± 2,646 kJ·d-1and EE: 186 ± 14 kJ·kg-1·d-1; 16,018 ± 1973 kJ·d-1; p < 0.05; d = -1.4; day 4: EI: 179 ± 44 kJ·kg-1·d-1, 15,413 ± 3,960 kJ·d-1and EE: 225 ± 42 kJ·kg-1·d-1; 19,313 ± 3,072 kJ·d-1; d = -0.7). Carbohydrate intake (CI) was substantially below current sports nutrition recommendations on 6 of 7 days with deficits ranging from -1 to -7.2 g·kg-1·d-1(p < 0.05), whereas daily protein and fat intake was adequate. In conclusion, the GeneActiv provides effective estimation of EE during weekly preparation for a professional team sport competition. Australian Footballers attempt to periodize dietary EI to varying daily training loads but fail to match expenditure on higher-training load days. Specific dietary strategies to increase CI may be beneficial to achieve appropriate energy balance and macronutrient distribution, particularly on days where athletes undertake multiple training sessions.

Keywordsdietary periodization; carbohydrate; energy balance; energy availability
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020420799. Sports science and exercise not elsewhere classified
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Byline AffiliationsBond University
University of South Australia
University of the Sunshine Coast
School of Health and Medical Sciences
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