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ORIGINAL ARTICLE EXERCISE PHYSIOLOGY AND BIOMECHANICS
The Journal of Sports Medicine and Physical Fitness 2021 February;61(2):199-204
DOI: 10.23736/S0022-4707.20.11099-5
Copyright © 2020 EDIZIONI MINERVA MEDICA
lingua: Inglese
Caffeine improves performance but not duration of the countermovement jump phases
Ángel LAGO-RODRÍGUEZ 1, Pablo JODRA 2 ✉, Stephen BAILEY 3, Raúl DOMÍNGUEZ 4, 5, 6
1 Faculty of Health Sciences, University Isabel I, Burgos, Spain; 2 Faculty of Education, University of Alcalá, Madrid, Spain; 3 School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK; 4 Escuela Universitaria de Osuna (Center attached to Universidad de Sevilla), Sevilla, Spain; 5 Departamento de Educación Fisica y Deporte, Universidad de Sevilla, Sevilla, Spain; 6 Studies Research Group in Neuromuscular Responses (GEPREN), University of Lavras, Lavras, Brasil
BACKGROUND: The countermovement jump (CMJ) test is often employed to assess power generated in the lower limbs and has been related to performance in several sports modalities. The objective of this study was to assess the effects of caffeine supplementation on jump height, average power (AP), peak power (PP), maximum velocity (V
METHODS: Sixteen resistance-trained men (age: 22.69±2.12 years; height: 1.78±0.06 m; weight: 78.09±10.27 kg) performed a CMJ 60 minutes after having taken an oral supplement containing 6 mg·kg-1 of caffeine or placebo (sucrose). The study design was randomized, double-blind crossover.
RESULTS: Caffeine ingestion improved jump height (+3.86%, P=0.02), V
CONCLUSIONS: Acute caffeine supplementation leads to improved CMJ height, V
KEY WORDS: Muscle strength; Coffee; Athletic performance; Performance-enhancing substances