Acute caffeine supplementation improves jumping, sprinting, and
change-of-direction performance in basketball players when
ingested in the morning but not evening

J 2022

Acute caffeine supplementation improves jumping, sprinting, and change-of-direction performance in basketball players when ingested in the morning but not evening

STOJANOVIČ, Emilija, Aaron SCANLAN, Zoran MILANOVIC, Jordan FOX, Radko STANKOVIČ et. al.

Basic information

Original name

Acute caffeine supplementation improves jumping, sprinting, and change-of-direction performance in basketball players when ingested in the morning but not evening

Authors

STOJANOVIČ, Emilija (688 Serbia), Aaron SCANLAN (36 Australia), Zoran MILANOVIC (688 Serbia, guarantor, belonging to the institution), Jordan FOX (36 Australia), Radko STANKOVIČ (688 Serbia) and Vincent DALBO (36 Australia)

Edition

European Journal of Sport Science, Velká Británie, TAYLOR & FRANCIS LTD. 2022, 1746-1391

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30306 Sport and fitness sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 3.200

RIV identification code

RIV/00216224:14510/22:00124922

Organization unit

Faculty of Sports Studies

DOI

http://dx.doi.org/10.1080/17461391.2021.1874059

UT WoS

000614178100001

Keywords in English

Diurnal variation; sport; anaerobic performance; time-of-day; ergogenic aids; power

Abstract

V originále

This study compared the effects of acute caffeine supplementation (3 mg/kg) administered in the morning and evening on performance-related variables in basketball players. Eleven, national-level, adolescent male basketball players underwent field-based fitness testing on four occasions: morning (10:00) with caffeine ingestion (AMCAFF), morning (10:00) with placebo ingestion (AMPLAC), evening (21:00) with caffeine ingestion (PMCAFF), and evening (21:00) with placebo ingestion (PMPLAC). Fitness testing included of a countermovement jump without arm swing (CMJ), CMJ with arm swing (CMJAS), squat jump (SJ), Lane Agility Drill (LAD), 20-m linear sprint, and Suicide Run with (SRD) and without dribbling (SR). Data were analysed using two-way repeated measures analyses of variance and paired t-tests, with effect sizes (ES) also determined for all pairwise comparisons. Follow-up t-test comparisons revealed that AMCAFF produced small-moderate, significant (p<0.001), improvements in CMJ (ES = 0.51), CMJAS (ES = 0.40), SJ (ES = 0.51), and SR (ES = −0.45) compared to AMPLAC. AMCAFF also produced a moderate, significantly (p<0.001) faster LAD (ES = −0.61) compared to PMCAFF. PMPLAC demonstrated small-moderate, significant (p<0.05) improvements in CMJ (ES = 0.43), CMJAS (ES = 0.48), and 20-m sprint (ES = −0.63) compared to AMPLAC. In contrast, AMPLAC resulted in large, significantly (p<0.001), faster SRD (ES = −1.46) and SR (ES = −1.59) compared to PMPLAC. Given the ergogenic effects of caffeine during basketball-specific fitness tests appear to be influenced by time of ingestion, basketball practitioners should consider administering caffeine only to players in the morning to improve vertical jump, sprinting, and change-of-direction performance, with no beneficial effects observed with caffeine ingestion in the evening.

Citovat

STOJANOVIČ, Emilija, Aaron SCANLAN, Zoran MILANOVIC, Jordan FOX, Radko STANKOVIČ and Vincent DALBO. Acute caffeine supplementation improves jumping, sprinting, and change-of-direction performance in basketball players when ingested in the morning but not evening. European Journal of Sport Science. Velká Británie: TAYLOR & FRANCIS LTD., 2022, vol. 22, No 3, p. 360-370. ISSN 1746-1391. Available from: https://dx.doi.org/10.1080/17461391.2021.1874059.

@article{1761897,
   author = {Stojanovič, Emilija and Scanlan, Aaron and Milanovic, Zoran and Fox, Jordan and Stankovič, Radko and Dalbo, Vincent},
   article_location = {Velká Británie},
   article_number = {3},
   doi = {http://dx.doi.org/10.1080/17461391.2021.1874059},
   keywords = {Diurnal variation; sport; anaerobic performance; time-of-day; ergogenic aids; power},
   language = {eng},
   issn = {1746-1391},
   journal = {European Journal of Sport Science},
   title = {Acute caffeine supplementation improves jumping, sprinting, and change-of-direction performance in basketball players when ingested in the morning but not evening},
   url = {https://www.tandfonline.com/doi/full/10.1080/17461391.2021.1874059},
   volume = {22},
   year = {2022}
}

TY  - JOUR
ID  - 1761897
AU  - Stojanovič, Emilija - Scanlan, Aaron - Milanovic, Zoran - Fox, Jordan - Stankovič, Radko - Dalbo, Vincent
PY  - 2022
TI  - Acute caffeine supplementation improves jumping, sprinting, and change-of-direction performance in basketball players when ingested in the morning but not evening
JF  - European Journal of Sport Science
VL  - 22
IS  - 3
SP  - 360-370
EP  - 360-370
PB  - TAYLOR & FRANCIS LTD.
SN  - 17461391
KW  - Diurnal variation
KW  - sport
KW  - anaerobic performance
KW  - time-of-day
KW  - ergogenic aids
KW  - power
UR  - https://www.tandfonline.com/doi/full/10.1080/17461391.2021.1874059
N2  - This study compared the effects of acute caffeine supplementation (3 mg/kg) administered in the morning and evening on performance-related variables in basketball players. Eleven, national-level, adolescent male basketball players underwent field-based fitness testing on four occasions: morning (10:00) with caffeine ingestion (AMCAFF), morning (10:00) with placebo ingestion (AMPLAC), evening (21:00) with caffeine ingestion (PMCAFF), and evening (21:00) with placebo ingestion (PMPLAC). Fitness testing included of a countermovement jump without arm swing (CMJ), CMJ with arm swing (CMJAS), squat jump (SJ), Lane Agility Drill (LAD), 20-m linear sprint, and Suicide Run with (SRD) and without dribbling (SR). Data were analysed using two-way repeated measures analyses of variance and paired t-tests, with effect sizes (ES) also determined for all pairwise comparisons. Follow-up t-test comparisons revealed that AMCAFF produced small-moderate, significant (p<0.001), improvements in CMJ (ES = 0.51), CMJAS (ES = 0.40), SJ (ES = 0.51), and SR (ES = −0.45) compared to AMPLAC. AMCAFF also produced a moderate, significantly (p<0.001) faster LAD (ES = −0.61) compared to PMCAFF. PMPLAC demonstrated small-moderate, significant (p<0.05) improvements in CMJ (ES = 0.43), CMJAS (ES = 0.48), and 20-m sprint (ES = −0.63) compared to AMPLAC. In contrast, AMPLAC resulted in large, significantly (p<0.001), faster SRD (ES = −1.46) and SR (ES = −1.59) compared to PMPLAC. Given the ergogenic effects of caffeine during basketball-specific fitness tests appear to be influenced by time of ingestion, basketball practitioners should consider administering caffeine only to players in the morning to improve vertical jump, sprinting, and change-of-direction performance, with no beneficial effects observed with caffeine ingestion in the evening.
ER  -

STOJANOVIČ, Emilija, Aaron SCANLAN, Zoran MILANOVIC, Jordan FOX, Radko STANKOVIČ and Vincent DALBO. Acute caffeine supplementation improves jumping, sprinting, and change-of-direction performance in basketball players when ingested in the morning but not evening. \textit{European Journal of Sport Science}. Velká Británie: TAYLOR \&{} FRANCIS LTD., 2022, vol.~22, No~3, p.~360-370. ISSN~1746-1391. Available from: https://dx.doi.org/10.1080/17461391.2021.1874059.

Detailed Information on Publication Record