Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2012) 11, 537 - 541

Research article
The Effects of a Carbohydrate-Protein Gel Supplement on Alpine Slalom Ski Performance
John G. Seifert1, , Ronald W. Kipp2, David W. Bacharach3
Author Information
1 Movement Sciences Laboratory, Dept. Health and Human Development, Montana State University, Bozeman, MT, USA
2 High Performance Department, US Ski and Snowboard Association, Park City, UT, USA
3 Human Performance Laboratory, Dept. of KHPE, St. Cloud State University, St. Cloud, MN,USA

John G. Seifert
✉ PO Box 173360, MSU, Bozeman, MT 59717, USA
Email: john.seifert@montana.edu
Publish Date
Received: 29-02-2012
Accepted: 27-06-2012
Published (online): 01-09-2012
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ABSTRACT

Alpine slalom ski racing is a high intensity, complex sport in which racers execute turns every second. Acute fatigue can make the difference in not finishing a run (DNF) or finishing out of contention. The quantity and quality of training often dictates racing success. It is not known if nutritional supplementation can improve performance in this high intensity, short duration activity. The objective of this study was to determine if ingesting a carbohydrate-protein energy gel (GEL) improves finishing success and number of gates completed during 2 hr slalom sessions on two consecutive days of training. Twenty-four racers were matched; one group ingested the GEL, the second group received a liquid placebo (PLA). Total carbohy-drate, protein, and water ingested by the GEL group were 60g, 15g, and 450 mL, while the PLA group ingested 450 mL of PLA. The GEL group had significantly fewer DNF’s (7/48 vs. 18/48; p = 0.02) on both days, completed a greater number of training gates on Day 2 (260.3 ± 20.1 vs. 246.3 ± 17.5 gates; p = 0.03), and had a lower RPE (3.9 ± 1.2 vs. 5.3 ± 1.2 on Day 2 (p = 0.004) vs. PLA. The statistical analysis of combined finishing times was not possible due to the high number of DNF’s in the PLA group. High intensity slalom performance can be im-proved by the ingestion of an energy gel. The GEL allowed the athletes to improve training quantity and quality and their per-ception of effort was less than skiers who ingested a placebo.

Key words: Alpine ski racing, nutritional supplementation, performance


           Key Points
  • Nutritional supplementation with a carbohydrate/protein sports gel during high intensity ski training improved training volume as measured by the number gates completed.
  • Supplementation also reduced the number of DNF’s during training.
  • Racers’ perception of effort was significantly lower with the supplement ingestion compared to a non-caloric placebo.
  • This applied study was conducted under real life field conditions and training environments.
 
 
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