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Case-Study: Nutrition and Training Periodization in Three Elite Marathon Runners.
MedLine Citation:
PMID:  22805754     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Laboratory-based studies demonstrate that fueling (carbohydrate; CHO) and fluid strategies can enhance training adaptations and race-day performance in endurance athletes. Thus, the aim of this case-study was to characterize several periodized training and nutrition approaches leading to individualized race-day fluid and fueling plans for three elite male marathoners. Athletes kept detailed training logs on training volume, pace and subjective ratings of perceived exertion (RPE) for each training session over 16wks prior to race-day. Training impulse/load calculations (TRIMP; min x RPE = 'load' (arbitrary-units; AU)) and two central nutritional techniques were implemented: periodic low-CHO availability training and individualized CHO and fluid intake assessments. Athletes averaged ~13 training sessions/wk for a total average training volume of 182 km/wk and peak volume of 231km/wk. Weekly TRIMP peaked at 4437AU (wk 9) with a low of 1887AU (wk 16), and an average of 3082±646AU. Of the 606 total training sessions, ~74, 11 and 15% were completed at an intensity in zone 1 (very easy to somewhat hard), zone 2 (at lactate threshold) and zone 3 (very hard to maximal), respectively. There were 2.5±2.3 low-CHO availability training bouts/week. On race-day athletes consumed 61±15g CHO in 604±156 ml/h (10.1±0.3% CHO solution) in the following format: ~15g CHO in ~150ml every ~15min of racing. Athlete's resultant marathon times were 2:11:23, 2:12:39 (both personal bests), and a debut at 2:16:17. Taken together, these periodized training and nutrition approaches were successfully applied to elite marathoners in training and competition.
Authors:
Trent Stellingwerff
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-4
Journal Detail:
Title:  International journal of sport nutrition and exercise metabolism     Volume:  -     ISSN:  1543-2742     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100939812     Medline TA:  Int J Sport Nutr Exerc Metab     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Canadian Sport Centre - Pacific, Victoria, British Columbia, Canada.
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