Estimated energy expenditures and energy intakes of international female rugby sevens players in five days of a training camp and competition preparation

CURTIS, Christopher, ARJOMANDKHAH, Nicola, COOKE, Carlton, RANCHORDAS, Mayur K. and RUSSELL, Mark (2023). Estimated energy expenditures and energy intakes of international female rugby sevens players in five days of a training camp and competition preparation. Nutrients, 15 (14): 3192.

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Abstract

To understand the energy balance of international female rugby sevens (R7s) players in applied environments, this study estimated the energy intakes (EI) and total daily estimated energy expenditures (TDEE) during a five-day training camp (TRAIN) and phase of competition preparation (COMP) of equal duration. Tri-axial accelerometer devices were worn throughout both scenarios to estimate TDEE, whereas EI was estimated via self-reported food diaries. Energy deficits of −47% (TDEETRAIN: 14.6 ± 1.6 MJ·day−1, EITRAIN: 7.7 ± 0.9 MJ·day−1, p ≤ 0.001, d = 5.1) and −50% (TDEECOMP: 15.5 ± 1.6 MJ·day−1, EICOMP: 7.7 ± 1.0 MJ·day−1, p ≤ 0.001, d = 5.7) were observed throughout TRAIN (n = 11; age: 25 ± 4 years, height: 170 ± 6 cm, weight: 71 ± 7 kg) and COMP (n = 8; age: 25 ± 3 years, height: 172 ± 5 cm, weight: 72 ± 6 kg), respectively. Carbohydrate intakes were below the lower range of sports nutrition recommendations in both TRAIN (−62%; 2.3 ± 0.3 g·kg−1 BM, p ≤ 0.001) and COMP (−60%; 2.4 ± 0.5 g·kg−1 BM, p ≤ 0.001). For protein (TRAIN: 1.7 ± 0.4 g·kg−1 BM, COMP: 1.5 ± 0.1 g·kg−1 BM), intakes met the lower range of recommendations. Fat intake exceeded recommendations of the percentage of total EI (COMP: 39 ± 5%). Accordingly, the dietary strategies of international female R7s players may warrant optimization, as carbohydrate and fat intakes were less than optimal when compared to current performance-based sports nutrition guidelines.

Item Type:	Article
Additional Information:	** Article version: VoR ** From MDPI via Jisc Publications Router ** Licence for VoR version of this article: https://creativecommons.org/licenses/by/4.0/ ** Peer reviewed: TRUE ** Acknowledgements: Acknowledgments: The authors would like to thank players and staff within the rugby sevens program for their participation in the study. **Journal IDs: eissn 2072-6643 **Article IDs: publisher-id: nutrients-15-03192 **History: published_online 19-07-2023; accepted 07-07-2023; rev-recd 06-07-2023; collection 07-2023; submitted 19-06-2023
Uncontrolled Keywords:	accelerometer, female athlete, nutrition, micronutrients, macronutrients, team sport
Identification Number:	https://doi.org/10.3390/nu15143192
SWORD Depositor:	Colin Knott
Depositing User:	Colin Knott
Date Deposited:	11 Aug 2023 09:18
Last Modified:	11 Aug 2023 09:18
URI:	https://shura.shu.ac.uk/id/eprint/32246

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