J 2016

Case Study: Competition Nutrition Intakes during the Open Water Swimming Grand Prix Races in Elite Female Swimmer

KUMSTÁT, Michal, Silvie RYBÁŘOVÁ, Andy THOMAS and Jan NOVOTNÝ

Basic information

Original name

Case Study: Competition Nutrition Intakes during the Open Water Swimming Grand Prix Races in Elite Female Swimmer

Authors

KUMSTÁT, Michal (203 Czech Republic, guarantor, belonging to the institution), Silvie RYBÁŘOVÁ (203 Czech Republic, belonging to the institution), Andy THOMAS (826 United Kingdom of Great Britain and Northern Ireland) and Jan NOVOTNÝ (203 Czech Republic, belonging to the institution)

Edition

International Journal of Sport Nutrition and Exercise Metabolism, 2016, 1526-484X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Sport and leisure time activities

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.098

RIV identification code

RIV/00216224:14510/16:00090673

Organization unit

Faculty of Sports Studies

DOI

UT WoS

000381247700012

Keywords in English

carbohydrate; dietary supplements; ultra-endurance elite sport

Tags

Změněno: 11/4/2017 14:41, doc. Mgr. Michal Kumstát, Ph.D.

Abstract

V originále

The nutritional intake of elite open water swimmers during competition is not well established, and therefore this case study aims to provide new insights by describing the feeding strategies adopted by an elite female swimmer (28 yrs; height; 1.71 m; body mass: 60 kg; body fat: 16.0%) in the FINA open water Grand Prix 2014.Seven events of varying distances (15–88 km) and durations (3–12 hrs) were included. In all events, except one, feeds were provided from support boats. Swimmer and support staff were instructed to track in detail all foods and beverages consumed during the events. Nutritional information was gathered from the packaging and dietary supplements labels and analyzed by nutrition software. Mean carbohydrate (CHO) and protein intake reached 83 ± 5 g·h-1 and 12 ± 8 g·h-1, respectively. Fat intake was neglected (~1 g·h-1). Mean in-race energy intake reached 394 ± 26 kcal·h-1. Dietary supplements in the form of sport beverages and gels, containing multitransportable CHO, provided 40 ± 4 and 49 ± 6% of all CHO energy, respectively. Caffeine (3.6 ± 1.8 mg·kg-1 per event) and sodium (423 ± 16 mg·h-1) were additionally supplemented in all events. It was established that continuous intake of high doses of CHO and sodium and moderate dose of caffeine were an essential part of the feeding strategy for elite-level high intensity ultra-endurance open-water swimming races. A well scheduled and well-prepared nutrition strategy is believed to have ensured optimal individual performance during Grand Prix events.