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Two percent dehydration impairs and six percent carbohydrate drink improves boys basketball skills.
Med Sci Sports Exerc 2006; 38(9):1650-8MS

Abstract

PURPOSE

To determine the effects of exercise heat-induced two percent dehydration (DEH) and euhydration (EUH) with a six percent carbohydrate-electrolyte solution (CES) compared with placebo EUH (P EUH) on basketball skills in skilled young players.

METHODS

Fifteen 12- to 15-yr-old boys underwent three separate 2-h exercise heat exposures (double blind, random order): 2% DEH by limiting fluid intake during exercise in the heat and basketball skill drills, EUH (no net weight change) with a 6% CES, and EUH with a flavored water placebo (P EUH). After recovery, subjects performed an orchestrated sequence of continuous basketball drills designed to simulate a game (12-min quarters + a 10-min halftime). Performance measures and component drills inherent to basketball included various individual and combined shooting percentages (3-point, 15-foot, free-throw shots), sprint (suicides, court widths), lateral movement (zigzags, lane slides), and defensive drill (combining lateral and front-to-back movement) times.

RESULTS

Compared with P EUH (53 +/- 11%), combined shooting percentage was impaired by 2% DEH (45 +/- 9%; P = 0.002) and improved by CES intake (60 +/- 8%; P = 0.003). Total sprint times showed a similar effect (83 +/- 10 vs 78 +/- 9 vs 76 +/- 9 s; DEH vs P EUH vs CES; P < 0.001 and P = 0.04, respectively). Total lateral movement times were impaired by 2% DEH (73 +/- 8 vs 68 +/- 8 s; P = 0.001). CES improved total defensive drill times compared with 2% DEH (77 +/- 10 vs 82 +/- 10; P = 0.006).

CONCLUSION

Deterioration in basketball skill performance accompanies two percent dehydration in skilled 12- to 15-yr-old basketball players. Additionally, EUH with a 6% CES significantly improves shooting performance and on-court sprinting over EUH with water.

Authors+Show Affiliations

Noll Laboratory, Department of Kinesiology, The Pennsylvania State University, University Park, PA 16802-6900, USA. kad931@psu.edu

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16960527

Citation

Dougherty, Kelly A., et al. "Two Percent Dehydration Impairs and Six Percent Carbohydrate Drink Improves Boys Basketball Skills." Medicine and Science in Sports and Exercise, vol. 38, no. 9, 2006, pp. 1650-8.
Dougherty KA, Baker LB, Chow M, et al. Two percent dehydration impairs and six percent carbohydrate drink improves boys basketball skills. Med Sci Sports Exerc. 2006;38(9):1650-8.
Dougherty, K. A., Baker, L. B., Chow, M., & Kenney, W. L. (2006). Two percent dehydration impairs and six percent carbohydrate drink improves boys basketball skills. Medicine and Science in Sports and Exercise, 38(9), pp. 1650-8.
Dougherty KA, et al. Two Percent Dehydration Impairs and Six Percent Carbohydrate Drink Improves Boys Basketball Skills. Med Sci Sports Exerc. 2006;38(9):1650-8. PubMed PMID: 16960527.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Two percent dehydration impairs and six percent carbohydrate drink improves boys basketball skills. AU - Dougherty,Kelly A, AU - Baker,Lindsay B, AU - Chow,Mosuk, AU - Kenney,W Larry, PY - 2006/9/9/pubmed PY - 2006/12/13/medline PY - 2006/9/9/entrez SP - 1650 EP - 8 JF - Medicine and science in sports and exercise JO - Med Sci Sports Exerc VL - 38 IS - 9 N2 - PURPOSE: To determine the effects of exercise heat-induced two percent dehydration (DEH) and euhydration (EUH) with a six percent carbohydrate-electrolyte solution (CES) compared with placebo EUH (P EUH) on basketball skills in skilled young players. METHODS: Fifteen 12- to 15-yr-old boys underwent three separate 2-h exercise heat exposures (double blind, random order): 2% DEH by limiting fluid intake during exercise in the heat and basketball skill drills, EUH (no net weight change) with a 6% CES, and EUH with a flavored water placebo (P EUH). After recovery, subjects performed an orchestrated sequence of continuous basketball drills designed to simulate a game (12-min quarters + a 10-min halftime). Performance measures and component drills inherent to basketball included various individual and combined shooting percentages (3-point, 15-foot, free-throw shots), sprint (suicides, court widths), lateral movement (zigzags, lane slides), and defensive drill (combining lateral and front-to-back movement) times. RESULTS: Compared with P EUH (53 +/- 11%), combined shooting percentage was impaired by 2% DEH (45 +/- 9%; P = 0.002) and improved by CES intake (60 +/- 8%; P = 0.003). Total sprint times showed a similar effect (83 +/- 10 vs 78 +/- 9 vs 76 +/- 9 s; DEH vs P EUH vs CES; P < 0.001 and P = 0.04, respectively). Total lateral movement times were impaired by 2% DEH (73 +/- 8 vs 68 +/- 8 s; P = 0.001). CES improved total defensive drill times compared with 2% DEH (77 +/- 10 vs 82 +/- 10; P = 0.006). CONCLUSION: Deterioration in basketball skill performance accompanies two percent dehydration in skilled 12- to 15-yr-old basketball players. Additionally, EUH with a 6% CES significantly improves shooting performance and on-court sprinting over EUH with water. SN - 0195-9131 UR - https://www.unboundmedicine.com/medline/citation/16960527/Two_percent_dehydration_impairs_and_six_percent_carbohydrate_drink_improves_boys_basketball_skills_ L2 - http://Insights.ovid.com/pubmed?pmid=16960527 DB - PRIME DP - Unbound Medicine ER -