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Assessment of Energy Intake and Energy Expenditure of Male Adolescent Academy-Level Soccer Players during a Competitive Week
Abstract
This study investigated the energy intake and expenditure of professional adolescent academy-level soccer players during a competitive week. Over a seven day period that included four training days, two rest days and a match day, energy intake (self-reported weighed food diary and 24-h recall) and expenditure (tri-axial accelerometry) were recorded in 10 male players from a professional English Premier League club. The mean macronutrient composition of the dietary intake was 318 ± 24 g·day−1 (5.6 ± 0.4 g·kg−1 BM) carbohydrate, 86 ± 10 g·day−1 (1.5 ± 0.2 g·kg−1 BM) protein and 70 ± 7 g·day−1 (1.2 ± 0.1 g·kg−1 BM) fats, representing 55% ± 3%, 16% ± 1%, and 29% ± 2% of mean daily energy intake respectively. A mean daily energy deficit of −1302 ± 1662 kJ (p = 0.035) was observed between energy intake (9395 ± 1344 kJ) and energy expenditure (10679 ± 1026 kJ). Match days (−2278 ± 2307 kJ, p = 0.012) and heavy training days (−2114 ± 2257 kJ, p = 0.016) elicited the greatest deficits between intake and expenditure. In conclusion, the mean daily energy intake of professional adolescent academy-level soccer players was lower than the energy expended during a competitive week. The magnitudes of these deficits were greatest on match and heavy training days. These findings may have both short and long term implications on the performance and physical development of adolescent soccer players.
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“The largest deficits occurred on match days and during intensive training periods, when energy expenditure increased but dietary intake did not adjust accordingly [34,60,69].”
From Dietary intake, nutrition knowledge, and behavior in youth team sport athletes: a scoping review and call to advance research and practice (2026) · cites this paper as [34]
In the citing paper
“Inadequate carbohydrate periodisation persists despite well-established evidence linking glycogen depletion with fatigue during intermittent exercise [13,34,114].”
From Dietary intake, nutrition knowledge, and behavior in youth team sport athletes: a scoping review and call to advance research and practice (2026) · cites this paper as [34]
In the citing paper
“Carbohydrate intake among youth team sport athletes ranged from 3.6 to 8.3 g/kg/day across studies and was frequently below recommended levels, particularly on match days and during intensive training [11,34,62,69].”
From Dietary intake, nutrition knowledge, and behavior in youth team sport athletes: a scoping review and call to advance research and practice (2026) · cites this paper as [34]
In the citing paper
“Carbohydrate intake among youth team sport athletes ranged from 3.6 to 8.3 g/kg/day across studies and was frequently below recommended levels, particularly on match days and during intensive training [11,34,62,69].”
From Dietary intake, nutrition knowledge, and behavior in youth team sport athletes: a scoping review and call to advance research and practice (2026) · cites this paper as [34]
In the citing paper
“Inadequate carbohydrate periodisation persists despite well-established evidence linking glycogen depletion with fatigue during intermittent exercise [13,34,114].”
From Dietary intake, nutrition knowledge, and behavior in youth team sport athletes: a scoping review and call to advance research and practice (2026) · cites this paper as [34]
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Cited by
Collins, J., Maughan, R. J., Gleeson, M., Bilsborough, J., Jeukendrup, A., Morton, J. P., Phillips, S. M., Armstrong, L., Burke, L. M., Close, G. L., et al. (2021) · British Journal of Sports Medicine · doi:10.1136/bjsports-2019-101961 · Cited by 303
Irwin, N., Ó Catháin, C., Ward, C., & Kelly, D. T. (2026) · Journal of the International Society of Sports Nutrition · doi:10.1080/15502783.2026.2671431 · Cited by 4
Metadata
- Authors
- Briggs, M., Cockburn, E., Rumbold, P., Rae, G., Stevenson, E., & Russell, M.
- Affiliations
- Department of Sport, Exercise and Rehabilitation, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
- London Sport Institute, Middlesex University, London, NW4 4BT, UK
- MSK CATS, South Tyneside Foundation, NE34 0PL, UK
- Venue
- Nutrients
- Publisher
- MDPI AG
- Published
- 2015-10-02
- Volume
- 7
- Issue
- 10
- Pages
- 8392-8401
- ISSN
- 2072-6643
- Cited by
- 59
- References
- 6
- Language
- en
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