Nutritional Adaptations in Elite Soccer Referees: First Evidence and Perspectives
Although the physiological cost of refereeing has been already studied in the literature, especially in soccer umpires, it remains unknown whether referees spontaneously adapt their energy intake during game days. Six national soccer referees completed 24-hour dietary recalls (assisted by the SU.VI.MAX copybook) during a control day (CON) and a day with a game (GAME). The stress level and hunger feelings were assessed using visual analogue scales. Total energy intake, energy derived from macronutrients and energy intake at each meal were analyzed using the Bilnuts nutrition software. Total daily energy intake was not significantly different between conditions (CON: 2270 ± 535 vs. GAME: 2782 ± 293). Energy derived from fat and protein was not different between conditions but the participants ingested more calories derived from carbohydrates during the GAME day (45.5 ± 5.9% vs. 54.9 ± 5.5%, respectively, p<0.05). The calories ingested during snacking were significantly increased during GAME compared with CON (p<0.05). The stress level was significantly higher during GAME and especially before the breakfast, lunch and snack (p<0.05). Hunger feeling was not different between conditions. Referring leads to nutritional adaptations in elite soccer umpires, who tend to increase their energy intake mainly during snacking, by increasing their carbohydrate consumption.
- - Clermont University, Blaise Pascal University, Laboratory of the Metabolic Adaptations to Exercise under Physiological and Pathological Conditions (AME2P), Clermont-Ferrand, France., Lore.Metz@univ-bpclermont.fr
- - CRNH-Auvergne, Clermont-Ferrand, France.
- - PERF ARBITRAGE, Blaise Pascal University, Aubière cedex, France.
- - Clermont-Ferrand University Hospital, Biostatistics unit (DRCI), Clermont-Ferrand, France.
- - Clermont University, Blaise Pascal University, Laboratory of the Metabolic Adaptations to Exercise under Physiological and Pathological Conditions (AME2P), Clermont-Ferrand, France.
- - CRNH-Auvergne, Clermont-Ferrand, France.
- French National Agency for Food Safety, Environment and Work (ANSES). Second national survey on individual alimentary consumption. INCA2) (2006-2007), 2009. Available at: ; accessed on 15.09.2014
- Bangsbo J, Norregaard L, Thorso F. Activity profile of competition soccer. Can J Sport Sci, 1991; 16(2): 110-116
- Catterall C, Reilly T, Atkinson G, Coldwells A. Analysis of the work rates and heart rates of association football referees. Br J Sports Med, 1993; 27(3): 193-196
- Chaput JP, Drapeau V, Poirier P, Teasdale N, Tremblay A. Glycemic instability and spontaneous energy intake: association with knowledge-based work. Psychosom Med, 2008; 70(7): 797-804
- Chaput JP, Tremblay A. Acute effects of knowledge-based work on feeding behavior and energy intake. Physiol Behav, 2007; 90(1): 66-72
- Chaput JP, Tremblay A. The glucostatic theory of appetite control and the risk of obesity and diabetes. Int J Obes (Lond), 2009; 33(1): 46-53
- da Silva AI, Fernandes LC, Fernandez R. Energy expenditure and intensity of physical activity in soccer referees during match-play. J Sports Sci Med, 2008; 7(3): 327-334
- Flint A, Raben A, Blundell JE, Astrup A. Reproducibility, power and validity of visual analogue scales in assessment of appetite sensations in single test meal studies. Int J Obes Relat Metab Disord, 2000; 24(1): 38-48
- Hercberg S, Galan P, Preziosi P, Bertrais S, Mennen L, Malvy D, Roussel AM, Favier A, Briancon S. The SU.VI.MAX Study: a randomized, placebo-controlled trial of the health effects of antioxidant vitamins and minerals. Arch Intern Med, 2004; 164(21): 2335-2342
- Hubert P, King NA, Blundell JE. Uncoupling the effects of energy expenditure and energy intake: appetite response to short-term energy deficit induced by meal omission and physical activity. Appetite, 1998; 31(1): 9-19
- Johnston L, McNaughton L. The physiological requirements of soccer refereeing. Aust J Sci Med Sport, 1994; 26(3): 67-72
- Krustrup P, Bangsbo J. Physiological demands of top-class soccer refereeing in relation to physical capacity: effect of intense intermittent exercise training. J Sports Sci, 2001; 19(11): 881-891
- Mallo J, Navarro E, Garcia-Aranda JM, Gilis B, Helsen W. Activity profile of top-class association football referees in relation to performance in selected physical tests. J Sports Sci, 2007; 25(7): 805-813
- McEwen BS. Understanding the potency of stressful early life experiences on brain and body function. Metabolism, 2008; 57 Suppl 2: S11-15
- Mohr M, Krustrup P, Bangsbo J. Match performance of high-standard soccer players with special reference to development of fatigue. J Sports Sci, 2003; 21(7): 519-528
- Rienzi E, Drust B, Reilly T, Carter JE, Martin A. Investigation of anthropometric and work-rate profiles of elite South American international soccer players. J Sports Med Phys Fitness, 2000; 40(2): 162-169
- Rodriguez NR, Di Marco NM, Langley S. American College of Sports Medicine position stand. Nutrition and athletic performance. Med Sci Sports Exerc, 2009; 41(3): 709-731
- Teixeira VH, Goncalves L, Meneses T, Moreira P. Nutritional intake of elite football referees. J Sports Sci, 2014; 32(13): 1279-1285
- Thivel D, Chaput JP. Are post-exercise appetite sensations and energy intake coupled in children and adolescents? Sports Med, 2014; 44(6): 735-741
- Tumilty D. Physiological characteristics of elite soccer players. Sports Med, 1993; 16(2): 80-96