Document Detail


Nutrition for adventure racing.
MedLine Citation:
PMID:  23006142     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Adventure racing requires competitors to perform various disciplines ranging from, but not limited to, mountain biking, running, kayaking, climbing, mountaineering, flat- and white-water boating and orienteering over a rugged, often remote and wilderness terrain. Races can vary from 6 hours to expedition-length events that can last up to 10-consecutive days or more. The purpose of this article is to provide evidence-based nutritional recommendations for adventure racing competitors. Energy expenditures of 365-750 kcal/hour have been reported with total energy expenditures of 18 000-80 000 kcal required to complete adventure races, and large negative energy balances during competitions have been reported. Nutrition, therefore, plays a major role in the successful completion of such ultra-endurance events. Conducting research in these events is challenging and the limited studies investigating dietary surveys and nutritional status of adventure racers indicate that competitors do not meet nutrition recommendations for ultra-endurance exercise. Carbohydrate intakes of 7-12 g/kg are needed during periods of prolonged training to meet requirements and replenish glycogen stores. Protein intakes of 1.4-1.7 g/kg are recommended to build and repair tissue. Adequate replacement of fluid and electrolytes are crucial, particularly during extreme temperatures; however, sweat rates can vary greatly between competitors. There is considerable evidence to support the use of sports drinks, gels and bars, as they are a convenient and portable source of carbohydrate that can be consumed during exercise, in training and in competition. Similarly, protein and amino acid supplements can be useful to help meet periods of increased protein requirements. Caffeine can be used as an ergogenic aid to help competitors stay awake during prolonged periods, enhance glycogen resynthesis and enhance endurance performance.
Authors:
Mayur K Ranchordas
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Sports medicine (Auckland, N.Z.)     Volume:  42     ISSN:  1179-2035     ISO Abbreviation:  Sports Med     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-10-08     Completed Date:  2013-03-25     Revised Date:  2013-05-16    
Medline Journal Info:
Nlm Unique ID:  8412297     Medline TA:  Sports Med     Country:  New Zealand    
Other Details:
Languages:  eng     Pagination:  915-27     Citation Subset:  IM    
Affiliation:
Sheffield Hallam University, Academy of Sport and Physical Activity, Collegiate Crescent Campus, Sheffield, UK. m.ranchordas@shu.ac.uk
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Athletes
Athletic Performance / physiology
Caffeine / administration & dosage
Central Nervous System Stimulants / administration & dosage
Dietary Carbohydrates / metabolism
Dietary Fats / metabolism
Dietary Proteins / metabolism
Dietary Supplements
Energy Metabolism / drug effects,  physiology*
Female
Humans
Male
Nutritional Requirements / drug effects,  physiology*
Nutritional Status / drug effects,  physiology*
Physical Endurance / drug effects,  physiology
Sports / physiology*
Sweating / drug effects,  physiology
Water-Electrolyte Balance / drug effects,  physiology
Chemical
Reg. No./Substance:
0/Central Nervous System Stimulants; 0/Dietary Carbohydrates; 0/Dietary Fats; 0/Dietary Proteins; 58-08-2/Caffeine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  From despair to hope: A longitudinal study of illness perceptions and coping in a psycho-educational...
Next Document:  Conservative management of midportion Achilles tendinopathy: a mixed methods study, integrating syst...