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Acute Ingestion of Caffeinated Chewing Gum Improves Repeated Sprint Performance of Team Sport Athletes With Low Habitual Caffeine Consumption.

International journal of sport nutrition and exercise metabolism
January 1, 1970
Mark Evans et al. (6 authors)
Journal ArticleRandomized Controlled TrialHuman StudyClinical
Extracted Claims (5)
InterventionDirectionEndpointPopulationDosageImpactClaim #
acute ingestion of caffeine
no change
short-duration high-intensity performance
-
equivocal
effects are equivocal
#1
acute ingestion of caffeinated chewing gum
no change
repeated sprint performance (RSP) assessed by sprint performance decrement (%)
18 male team sport athletes
5.00 ± 2.84% vs. 5.43 ± 2.68%
did not differ
#2
caffeinated chewing gum (200 mg caffeine)
decrease
sprint performance decrement
low habitual caffeine consumers (<40 mg/day, n = 10)
5.53 ± 3.12% vs. 6.53 ± 2.91%
experienced an attenuation
#3
caffeinated chewing gum (200 mg caffeine)
no change
sprint performance decrement
moderate/high habitual caffeine consumers (>130 mg/day, n = 6)
3.98 ± 2.57% vs. 3.80 ± 1.79%
effect not observed
#4
a low dose of caffeine in the form of caffeinated chewing gum
decrease
sprint performance decrement during RSP
team sport athletes with low habitual consumption of caffeine
-
attenuates
#5
Abstract

The effects of acute ingestion of caffeine on short-duration high-intensity performance are equivocal, while studies of novel modes of delivery and the efficacy of low doses of caffeine are warranted. The aims of the present study were to investigate the effect of acute ingestion of caffeinated chewing gum on repeated sprint performance (RSP) in team sport athletes, and whether habitual caffeine consumption alters the ergogenic effect, if any, on RSP. A total of 18 male team sport athletes undertook four RSP trials using a 40-m maximum shuttle run test, which incorporates 10 × 40-m sprints with 30 s between the start of each sprint. Each participant completed two familiarization sessions, followed by caffeine (CAF; caffeinated chewing gum; 200 mg caffeine) and placebo (PLA; noncaffeinated chewing gum) trials in a randomized, double-blind manner. RSP, assessed by sprint performance decrement (%), did not differ (p = .209; effect size = 0.16; N = 18) between CAF (5.00 ± 2.84%) and PLA (5.43 ± 2.68%). Secondary analysis revealed that low habitual caffeine consumers (<40 mg/day, n = 10) experienced an attenuation of sprint performance decrement during CAF relative to PLA (5.53 ± 3.12% vs. 6.53 ± 2.91%, respectively; p = .049; effect size =0.33); an effect not observed in moderate/high habitual caffeine consumers (>130 mg/day, n = 6; 3.98 ± 2.57% vs. 3.80 ± 1.79%, respectively; p = .684; effect size = 0.08). The data suggest that a low dose of caffeine in the form of caffeinated chewing gum attenuates the sprint performance decrement during RSP by team sport athletes with low, but not moderate-to-high, habitual consumption of caffeine.

Medical Subject Headings (MeSH)
AthletesAthletic PerformanceCaffeineCentral Nervous System StimulantsChewing GumDouble-Blind MethodHumansMaleRunningYoung Adult
Study Links
Citation Metrics
Total Citations35
Citations/Year5.0
Relative Citation Ratio3.09
NIH Percentile85.6%
Research Impact Scores
APT Score0.75
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