Dairy-Based Preexercise Meal Does Not Affect Gut Comfort or Time-Trial Performance in Female Cyclists

Eric C Haakonssen; Megan L Ross; Louise E Cato; Alisa Nana; Emma J Knight; David G Jenkins; David T Martin; Louise M Burke

doi:10.1123/ijsnem.2014-0069

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Dairy-Based Preexercise Meal Does Not Affect Gut Comfort or Time-Trial Performance in Female Cyclists

Journal article

Peer reviewed

Dairy-Based Preexercise Meal Does Not Affect Gut Comfort or Time-Trial Performance in Female Cyclists

Eric C Haakonssen, Megan L Ross, Louise E Cato, Alisa Nana, Emma J Knight, David G Jenkins, David T Martin and Louise M Burke

International Journal of Sport Nutrition and Exercise Metabolism, Vol.24(5), pp.553-558

2014

DOI: https://doi.org/10.1123/ijsnem.2014-0069

PMID: 25029702

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Abstract

bone

calcium

cycling

Some athletes avoid dairy in the meal consumed before exercise due to fears about gastrointestinal discomfort. Regular exclusion of dairy foods may unnecessarily reduce intake of high quality proteins and calcium with possible implications for body composition and bone health. This study compared the effects of meals that included (Dairy) or excluded (Control) dairy foods on gastric comfort and subsequent cycling performance. Well-trained female cyclists (n = 32; mean ± SD; 24.3 ± 4.1 y; VO2peak 57.1 ± 4.9 ml/kg/min) completed two trials (randomized cross-over design) in which they consumed a meal (2 g/kg carbohydrate and 54 kJ/kg) 2 hr before a 90-min cycle session (80 min at 60% maximal aerobic power followed by a 10-min time trial; TT). The dairy meal contained 3 servings of dairy foods providing ~1350 mg calcium. Gut comfort and palatability were measured using questionnaires. Performance was measured as maximum mean power during the TT (MMP10min). There was no statistical or clinical evidence of an effect of meal type on MMP10min with a mean difference (Dairy – Control) of 4 W (95% CI [–2, 9]). There was no evidence of an association between pretrial gut comfort and meal type (p = .15) or between gut comfort delta scores and meal type postmeal (p = .31), preexercise (p = .17) or postexercise (p = .80). There was no statistical or clinical evidence of a difference in palatability between meal types. In summary, substantial amounts of dairy foods can be included in meals consumed before strenuous cycling without impairing either gut comfort or performance.

Details

Title: Dairy-Based Preexercise Meal Does Not Affect Gut Comfort or Time-Trial Performance in Female Cyclists
Authors: Eric C Haakonssen (Author) - Australian Institute of Sport
Megan L Ross (Author) - Australian Institute of Sport
Louise E Cato (Author) - Australian Institute of Sport
Alisa Nana (Author) - Australian Institute of Sport
Emma J Knight (Author) - Australian Institute of Sport
David G Jenkins (Author) - University of Queensland
David T Martin (Author) - Australian Institute of Sport
Louise M Burke (Author) - Australian Institute of Sport
Publication details: International Journal of Sport Nutrition and Exercise Metabolism, Vol.24(5), pp.553-558
Publisher: Human Kinetics, Inc.
DOI: 10.1123/ijsnem.2014-0069
ISSN: 1543-2742
PMID: 25029702
Organisation Unit: School of Health and Behavioural Sciences - Legacy; University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99488705702621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Nutrition & Dietetics; Sport Sciences

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