Upload
dusan
View
26
Download
1
Tags:
Embed Size (px)
DESCRIPTION
The Effects of Caffeine Consumption on Sprint Performance in College-Age Females. Michelle Seeger, Sara Wynne, Kori Burnett, Whitney Forde, Ashley Fleming. Introduction. The purpose was to better understand whether or not a low level stimulant can effect physical performance - PowerPoint PPT Presentation
Citation preview
THE EFFECTS OF CAFFEINE CONSUMPTION ON SPRINT PERFORMANCE IN COLLEGE-AGE FEMALES
Michelle Seeger, Sara Wynne, Kori Burnett, Whitney Forde, Ashley Fleming
Introduction The purpose was to better understand
whether or not a low level stimulant can effect physical performance Caffeine bans have become prevalent in recent
years in multiple athletic organizations; IOC, NCAA
Caffeine has been used by athletes in belief that it would enhance athletic performance
Hypothesis The consumption of a single cup of
caffeinated coffee will improve 50 meter sprint times, in college age females We recognize that caffeine has varying
effects on the population, in hopes of maintaining similar results we chose to use a single cup of coffee
Literature Review Turnicliffe (2008) – Canadian endurance athletes ingested various
amounts of coffee before performing endurance exercise. Those who ingested higher amounts of caffeine showed improvements in both physical performance and mental state.
Paton et al. (2001) – study focused on 20 meter sprint times with one set of participants ingesting a caffeine pill and another set ingesting a placebo. A slight increase in performance was seen in the initial sprint but increased fatigue was seen during repeated sprints (completed with 20 second rest intervals).
Carr (2008) – tested 10 team sports players for sprint times after ingesting a caffeine pill during one trial and a placebo during another trial. He used longer rest periods in between sprints (60 seconds) and found that sprint times were significantly improved when a pill containing 6mg of caffeine was ingested prior to exercise.
Equipment Keurig Cups easily regulate the amount.
Each caffeinated cup contains approx. 65 mg of caffeine
Each decaffeinated cup contains approx. 3 mg of caffeine
Coffee was only given black, additives were not allowed, hoping to prevent further imperfections in the study
Stopwatch used to time volunteers Tape Measurer
To mark off 50 meter distance
Participants 20 Female students Ages 18-23 Participate in some form of exercise
3+ times a week Data was excluded if participants were
not within a deviation of 20 pounds from the mean weight of 135 pounds To eliminate variance in the effect of caffeine
based on body weight
Methods Day 1:
Participants were required to fill out survey prior to starting experiment.
6 oz. of decaffeinated coffee was consumed prior to running.
50 meter sprints were timed and recorded for each participant.
Each participant answered the Borg Scale Perceived exertion immediately after running
Participants were required to complete three trials and answer perceived exertion scale after each.
Methods Cont… Day 2:
6 oz. of caffeinated coffee was consumed Participants were instructed to wait 15
minutes before first run Three sprinting trials of 50 meters were
timed and recorded Participants answered perceived exertion
test again after each trial Between each trial participants had to wait
5 minutes
ResultsAn ANOVA was used to test the results. At an alpha of .05 it was concluded that there was no significant difference between the caffeinated and decaffeinated tests.
Results: Borg Scale Perceived Exertion
1212.5
1313.5
1414.5
1515.5
1616.5
Trial 1Trial 2Trial 3
The results from the Borg scale were inconsistent with our statistical findings.
Caffeinated
Decaffeinated
Conclusions Our hypothesis that ingestion of caffeine will
decrease sprint times, 50m dash, in college age females, was not supported by our results. The ingestion of a low level stimulant had no
apparent effect on the performance of the volunteers.
Discussion The amount of caffeine consumed by the
participants was not enough to increase physical performance. Outside variables could have had significant effects on
the study Level of stress Lack of sleep Poor nutrition
Further Research: Levels of caffeine relative to body mass Anhydrous form, for better outcome Test participants at multiple levels to determine at
what amount subject will receive the greatest enhancement from caffeine
Take Home Message Although caffeine can play a role in
athletic performance, the amount of caffeine in a single cup of coffee is not enough to overcome the differences we may feel day to day during our physical activity.
ReferencesCarr, A., Dawson, B., Schneiker, K., Goodman, C., & Lay, B.
(2008). Effect of caffeine supplementation on repeated sprint running performance. Journal Of Sports Medicine & Physical Fitness, 48(4), 472-478.
Paton G.D., Hopkins W.G., Vollebregt L. (2001) Little effect of caffeine ingestion on repeated sprints in team-sport athletes. Medicine, Science and Sports Exercise, 33, 822-825.
Tunnicliffe, J. M., Erdman, K., Reimer, R. A., Lun, V., & Shearer, J. (2008). Consumption of dietary caffeine and coffee in physically active populations: physiological interactions. Applied Physiology, Nutrition & Metabolism, 33(6), 1301-1310. Retrieved from EBSCOhost.
THANK YOU….
DR. BAUERDR. BUCKENMEYER
ALL OF THE VOLUNTEERS