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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 (p0.05) 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 Type:	Article
Authors/Creators:	Lee, NA and Fell, JW and Pitchford, NW and Hall, AH and Leveritt, MD and Kitic, CM
Keywords:	dietary intervention, vertical jump, congested fixture, HRV, wellness
Journal or Publication Title:	Journal of Strength and Conditioning Research
Publisher:	Alliance Communications Group Division Allen Press
ISSN:	1064-8011
DOI / ID Number:	10.1519/JSC.0000000000001827
Copyright Information:	Copyright 2017 National Strength and Conditioning Association
Related URLs:	UTAS Profile: Lee, NA Google Scholar: Fell, JW UTAS Profile: Fell, JW Google Scholar: Kitic, CM UTAS Profile: Kitic, CM
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