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Combined carbohydrate and protein ingestion during Australian Rules football matches and training sessions does not reduce fatigue or accelerate recovery throughout a week-long junior tournament

Citation

Lee, NA and Fell, JW and Pitchford, NW and Hall, AH and Leveritt, MD and Kitic, CM, Combined carbohydrate and protein ingestion during Australian Rules football matches and training sessions does not reduce fatigue or accelerate recovery throughout a week-long junior tournament, Journal of Strength and Conditioning Research ISSN 1064-8011 (2017) [Refereed Article]

Copyright Statement

Copyright 2017 National Strength and Conditioning Association

DOI: doi:10.1519/JSC.0000000000001827

Abstract

Australian Rules football (ARF) is a physically demanding sport that can induce high levels of fatigue. Fatigue may be intensified during periods where multiple matches are played with limited recovery time. Combined carbohydrate and protein (CHO+PRO) intake during physical activity may provide performance and recovery benefits. The aim of this study was to investigate whether CHO+PRO ingestion during ARF matches and training sessions throughout a tournament would enhance performance or recovery in comparison to CHO-only ingestion. ARF players (n=21) competing in a 7-day National tournament participated in this randomized and double-blinded study. Beverages containing either CHO (n=10) or CHO+PRO (n=11) were provided during matches (Day-1, Day-4 and Day-7) and training sessions (Day-2 and Day-3). Countermovement jumps (CMJ), ratings of muscle soreness and autonomic function were assessed throughout the tournament. Gastrointestinal discomfort was measured post-matches. CMJ peak velocity increased in the CHO+PRO group (p=0.01), but not for the CHO group. There were no differences in the other CMJ variables. In both groups, muscle soreness increased from Day-0 and Day-1 to Day-2 (p<0.05) but did not remain elevated. R-R intervals (time elapsed between successive peaks in QRS complexes) increased in both groups from Day-1 to Day-7 (MD=59.85 ms, p<0.01). Post-match gastrointestinal discomfort was not different (p>0.05) between groups. When daily dietary protein is adequate (>1.8 g.kg.d), the ingestion of CHO+PRO during matches and training sessions throughout a tournament does not reduce muscle soreness nor have clear benefits for neuromuscular recovery or modulate autonomic function in junior ARF athletes, compared to CHO alone.

Item Details

Item Type:Refereed Article
Keywords:dietary intervention, vertical jump, congested fixture, HRV, wellness
Research Division:Medical and Health Sciences
Research Group:Human Movement and Sports Science
Research Field:Human Movement and Sports Science not elsewhere classified
Objective Division:Health
Objective Group:Specific Population Health (excl. Indigenous Health)
Objective Field:Specific Population Health (excl. Indigenous Health) not elsewhere classified
Author:Lee, NA (Mr Nathan Lee)
Author:Fell, JW (Associate Professor James Fell)
Author:Pitchford, NW (Mr Nathan Pitchford)
Author:Hall, AH (Mr Andrew Hall)
Author:Kitic, CM (Dr Cecilia Kitic)
ID Code:115851
Year Published:2017
Deposited By:Health Sciences
Deposited On:2017-04-13
Last Modified:2017-05-22
Downloads:0

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