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EFFECTS OF COFFEE AND NAPS ON ANAERBOBIC EXERCISE IN COLLEGIATE VOLLEYBALL PLAYERS

R Arnold
A Taylor

Abstract

R. Arnold & A. Taylor
Gustavus Adolphus College, St. Peter, MN

It was reported that Coffee consumption increased alertness and provided stronger Electroencephalographic (EEG) stimulants, which lead to more consistent performance on activities that include focus (Horne and Reyner 1996). Taking a 30-minute nap affected Sprint times, alertness, and short-term memory (Waterhouse et al. 2007). In order to successfully compete in collegiate volleyball it is important to be alert and explosive. The purpose of this study is to examine the effects of consuming caffeinated coffee (CAF), and/or taking a nap on anaerobic exercise in collegiate volleyball players. Ten female subjects from a Division III volleyball team have volunteered to participate in this study. A one-sample experimental design is being used to examine differences in the dependent variables of vertical jump power (VJ) and T-sprint tests between the independent variables of control (C), coffee only (CO), nap only (NO), or the coffee and nap (CN) conditions. The testing sequence of treatment conditions of control (C), coffee only (CO), nap only (NO), or the coffee and nap conditions (CN) were randomly assigned. For the CO condition, subjects are consuming a six-ounce cup of The Original Doughnut Shop Coffee Regular K cup of CAF 30 minutes prior to tests. The NO condition consists of taking a 20-minute nap and having 10 minutes of transition time to perform tests. The CN condition consists of consuming a 6 ounce cup of The Original Doughnut Shop Coffee Regular K cup of CAF 30 minutes prior to test and taking a nap for 20 minutes with a 10-minute transition time before tests. The CO condition does not include either the nap or consumption of coffee. The average of two trials for VJ and T- sprint tests will be recorded. A repeated measures ANOVA and paired sample t-tests will analyze for significant difference (p < 0.05) in the VJ power and T-sprint tests between the conditions. Expected results may indicate a significant increase in (p < 0.05) VJ power with the CN condition compared to NO condition, and CO condition. Results may also indicate a significant decrease in the T sprint test times in the CN condition compared to NO condition, CO condition (6.90 ± .74), and C condition (7.20 ± .79). Based on expected results, consuming a six-ounce cup of The Original Doughnut Shop Coffee Regular K cup of CAF and then taking a 20-minute nap may improve reaction time and performance during competition for collegiate volleyball athletes. Data collection is in progress.

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