The Effects of Caffeine on Vertical Jump Height and Execution in Collegiate Athletes

Bloms, Lucas; Fitzgerald, John S.; Short, Martin W.; Whitehead, James

doi:10.1519/jsc.0000000000001280

Cited by 50 publications

(63 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The ES magnitude of 0.15 observed in this study is very similar to the pooled ES of 0.17 reported in a recent meta-analysis of 10 studies [36]. This result, therefore, confirms that caffeine ingestion may have a relatively small performance-enhancing effect on vertical jump height [36][37][38]. The acute improvement in vertical jump height following caffeine ingestion is comparable to the improvement in jump height found as a result of 4 weeks of plyometric training [39,40].…”

Section: Effects Of Caffeine On Exercise Performancesupporting

confidence: 89%

CYP1A2 genotype and acute effects of caffeine on resistance exercise, jumping, and sprinting performance

Grgić

Pickering

Bishop

et al. 2020

Journal of the International Society of Sports Nutrition

View full text Add to dashboard Cite

Background: It has been suggested that polymorphisms within CYP1A2 impact inter-individual variation in the response to caffeine. The purpose of this study was to explore the acute effects of caffeine on resistance exercise, jumping, and sprinting performance in a sample of resistance-trained men, and to examine the influence of genetic variation of CYP1A2 (rs762551) on the individual variation in responses to caffeine ingestion.Methods: Twenty-two men were included as participants (AA homozygotes n = 13; C-allele carriers n = 9) and were tested after the ingestion of caffeine (3 mg/kg of body mass) and a placebo. Exercise performance was assessed with the following outcomes: (a) movement velocity and power output in the bench press exercise with loads of 25, 50, 75, and 90% of one-repetition maximum (1RM); (b) quality and quantity of performed repetitions in the bench press exercise performed to muscular failure with 85% 1RM; (c) vertical jump height in a countermovement jump test; and (d) power output in a Wingate test.Results: Compared to placebo, caffeine ingestion enhanced: (a) movement velocity and power output across all loads (effect size [ES]: 0.20-0.61; p < 0.05 for all); (b) the quality and quantity of performed repetitions with 85% of 1RM (ES: 0.27-0.85; p < 0.001 for all); (c) vertical jump height (ES: 0.15; p = 0.017); and (d) power output in the Wingate test (ES: 0.33-0.44; p < 0.05 for all). We did not find a significant genotype × caffeine interaction effect (pvalues ranged from 0.094 to 0.994) in any of the analyzed performance outcomes.Conclusions: Resistance-trained men may experience acute improvements in resistance exercise, jumping, and sprinting performance following the ingestion of caffeine. The comparisons of the effects of caffeine on exercise performance between individuals with the AA genotype and AC/CC genotypes found no significant differences.

show abstract

Section: Effects Of Caffeine On Exercise Performancesupporting

confidence: 89%

CYP1A2 genotype and acute effects of caffeine on resistance exercise, jumping, and sprinting performance

Grgić

Pickering

Bishop

et al. 2020

Journal of the International Society of Sports Nutrition

View full text Add to dashboard Cite

show abstract

“…So, caffeine improved jump height on CMJ test compared with jump height placebo group were found. In addition to previous studies 5,14,17 , we speculate that caffeine ingestion could promote a greater muscle leg production affecting to intramuscular and inter-muscular coordination during the muscle contraction improving motor unit recruitment. These beneficial effects could help to soccer players to reach higher height during jumping in actions.…”

Section: Discussionsupporting

confidence: 57%

“…Caffeine Dose: There are studies which uses different dose in order to get ergogenic effects from caffeine supplementation [2][3][4][5][6][11][12][13][14][15][16] . A dose between 3-6mg of caffeine per kilogram of BM seems to have benefits without negative side effects and therefore a medium dose of 4mg/kg of BM was used.…”

Section: Subjectsmentioning

confidence: 99%

See 1 more Smart Citation

Caffeine supplementation improves countermovement jump in youth soccer players: a pilot study

Hernández-Camacho

Vázquez-Carrión²,

Fuentes-Lorca³

et al. 2017

Rev Esp Nutr Hum Diet

View full text Add to dashboard Cite

Introduction:The objective of this study was to analyze the effect of caffeine ingestion in soccer performance, particularly in the countermovement jump test (CMJ). Material and Methods:A total of 17 players from a U-19 amateur Spanish team participated in this pilot study. A double-blind placebo-controlled randomized experimental design was used in 2 different sessions (1.5 hour per session) separated by 1 week. CMJ was collected at the beginning and at the end of sessions; Rating of Perceived Exertion (RPE) was recorded. Players ingested caffeine or placebo at the beginning of session (minute 0 of session), providing a total of 4mg of caffeine or a placebo per kg of body mass. Side effects from caffeine and placebo ingestions were analyzed. The effect sizes (ES) were calculated using values for Cohen's and Quantitative differences were assessed qualitatively (QA). Results:The jump height with caffeine supplementation at the beginning of training was 37.03 (±3.87) cm and at the end was 39.35 (±4.05) cm, obtaining significant improvements (p<0.05; ES:0.56; QA:99/1/0). Significant differences on CMJ at the end of the training session between caffeine and placebo groups were observed (39.35 [±4.05] cm vs. 36.85 [±3.15] cm; p<0.05; ES:0.65; QA:0/1/99). Significant differences on RPE between groups were observed. A nonsignificant tendency to suffer more side effects with caffeine ingestion was obtained. Conclusions:This study shows how the ingestion of 4mg of caffeine per kg of body mass could be an ergogenic aid to improve soccer performance. However, further studies with bigger soccer players sample would be necessary to refute the present results. Más información: http://creativecommons.org/licenses/by-nc-sa/4.0/ Introducción: El objetivo del presente estudio fue analizar el efecto de la ingestión de cafeína en el rendimiento en fútbol, específicamente en el test de salto en contramovimiento (CMJ).Material y Métodos: 17 jugadores de la categoría Sub-19 de un equipo amateur español participaron en el estudio piloto. Se siguió un diseño a doble ciego, placebo-control, aleatorizado en 2 entrenamientos (1,5 horas/sesión) separados por 1 semana. El CMJ se recogió al inicio y, al final de las sesiones, la tasa de esfuerzo percibido (RPE) fue recogida. Los jugadores tomaron cafeína o placebo al inicio del entrenamiento (minuto 0), proveyendo 4mg/kg de masa corporal de cafeína o placebo. Se analizaron los efectos secundarios provenientes de la cafeína y del placebo. Los tamaños de efecto (ES) se calcularon utilizando valores para Cohen y las diferencias cuantitativas se evaluaron cualitativamente (QA).Resultados: La altura del salto media cuando se ingirió cafeína fue 37,03 (±3,87) cm al inicio y 39,35 (±4,05) cm al final del entrenamiento, obteniendo una mejora significativa (p<0,05; ES:0,56; QA:99/1/0). Se observaron diferencias significativas en el CMJ al final de los entrenamientos entre la ingestión con cafeína y placebo (39,35 [±4,05] cm vs. 36,85 [±3,15] cm; p<0,05; ES:0,65; QA:0/1/99). Se obtuvieron diferencias...

show abstract

“…Caffeine use has been associated with enhanced cognition and improved athletic performance in some cases. 2,3 It has also been used to treat drowsiness and reduce physical fatigue. 4 However, negative side effects from using caffeine can occur and include anxiety, increased blood pressure, and diminished fine motor skills.…”

Section: Introductionmentioning

confidence: 99%

Caffeine Concentrations in Coffee, Tea, Chocolate, and Energy Drink Flavored E-liquids

Lisko

Lee

Kimbrell

et al. 2016

NICTOB

View full text Add to dashboard Cite

Introduction Most electronic cigarettes (e-cigarettes) contain a solution of propylene glycol/glycerin and nicotine, as well as flavors. E-cigarettes and their associated e-liquids are available in numerous flavor varieties. A subset of the flavor varieties include coffee, tea, chocolate, and energy drink, which, in beverage form, are commonly recognized sources of caffeine. Recently, some manufacturers have begun marketing e-liquid products as energy enhancers that contain caffeine as an additive. Methods A Gas Chromatography-Mass Spectrometry (GC-MS) method for the quantitation of caffeine in e-liquids was developed, optimized and validated. The method was then applied to assess caffeine concentrations in 44 flavored e-liquids from cartridges, disposables, and refill solutions. Products chosen were flavors traditionally associated with caffeine (ie, coffee, tea, chocolate, and energy drink), marketed as energy boosters, or labeled as caffeine-containing by the manufacturer. Results Caffeine was detected in 42% of coffee-flavored products, 66% of tea-flavored products, and 50% of chocolate-flavored e-liquids (limit of detection [LOD] – 0.04 μg/g). Detectable caffeine concentrations ranged from 3.3 μg/g to 703 μg/g. Energy drink-flavored products did not contain detectable concentrations of caffeine. Eleven of 12 products marketed as energy enhancers contained caffeine, though in widely varying concentrations (31.7 μg/g to 9290 μg/g). Conclusions E-liquid flavors commonly associated with caffeine content like coffee, tea, chocolate, and energy drink often contained caffeine, but at concentrations significantly lower than their dietary counterparts. Estimated daily exposures from all e-cigarette products containing caffeine were much less than ingestion of traditional caffeinated beverages like coffee. Implications This study presents an optimized and validated method for the measurement of caffeine in e-liquids. The method is applicable to all e-liquid matrices and could potentially be used to ensure regulatory compliance for those geographic regions that forbid caffeine in e-cigarette products. The application of the method shows that caffeine concentrations and estimated total caffeine exposure from e-cigarette products is significantly lower than oral intake from beverages. However, because very little is known about the effects of caffeine inhalation, e-cigarette users should proceed with caution when using caffeine containing e-cigarette products. Further research is necessary to determine associated effects from inhaling caffeine.

show abstract

The Effects of Caffeine on Vertical Jump Height and Execution in Collegiate Athletes

Cited by 50 publications

References 24 publications

CYP1A2 genotype and acute effects of caffeine on resistance exercise, jumping, and sprinting performance

CYP1A2 genotype and acute effects of caffeine on resistance exercise, jumping, and sprinting performance

Caffeine supplementation improves countermovement jump in youth soccer players: a pilot study

Caffeine Concentrations in Coffee, Tea, Chocolate, and Energy Drink Flavored E-liquids

Contact Info

Product

Resources

About