Comparisons of Daily Energy Intake vs. Expenditure Using the GeneActiv Accelerometer in Elite Australian Football Athletes
Article
Article Title | Comparisons of Daily Energy Intake vs. Expenditure Using the GeneActiv Accelerometer in Elite Australian Football Athletes |
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ERA Journal ID | 9783 |
Article Category | Article |
Authors | 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. |
Journal Title | Journal of Strength and Conditioning Research |
Journal Citation | 35 (5), pp. 1273-1278 |
Number of Pages | 6 |
Year | 2021 |
Publisher | Lippincott Williams & Wilkins |
Place of Publication | United States |
ISSN | 1064-8011 |
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. |
Keywords | dietary periodization; carbohydrate; energy balance; energy availability |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 420799. Sports science and exercise not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Bond University |
University of South Australia | |
University of the Sunshine Coast | |
School of Health and Medical Sciences |
https://research.usq.edu.au/item/zq4wz/comparisons-of-daily-energy-intake-vs-expenditure-using-the-geneactiv-accelerometer-in-elite-australian-football-athletes
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