Caffeine improves performance but not duration of the countermovement jump phases
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| Titel: | Caffeine improves performance but not duration of the countermovement jump phases |
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| Autoren: | Lago-RodrÍguez, Ángel, Jodra, Pablo, Bailey, Stephen, DomÍnguez, Raúl |
| Weitere Verfasser: | Physiotherapy, Human Physiology and Anatomy, Human Physiology and Sports Physiotherapy Research Group |
| Quelle: | The Journal of Sports Medicine and Physical Fitness. 61 |
| Verlagsinformationen: | Edizioni Minerva Medica, 2021. |
| Publikationsjahr: | 2021 |
| Schlagwörter: | Adult, Male, Cross-Over Studies, Performance-Enhancing Substances, Athletic Performance, Athletic Performance/physiology, 3. Good health, Caffeine/pharmacology, Young Adult, 03 medical and health sciences, 0302 clinical medicine, Double-Blind Method, Caffeine, Muscle Strength/physiology, young adult, Humans, Muscle Strength, Performance-Enhancing Substances/pharmacology, Muscle Contraction/physiology, Muscle Contraction |
| Beschreibung: | 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 (Vmax), force production and duration of the eccentric, isometric and concentric muscle contraction phases of a CMJ.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.Caffeine ingestion improved jump height (+3.86%, P=0.02), Vmax (+1.49%, P=0.023), AP (+4.83%, P=0.006), and PP (+3.49%, P=0.004).Acute caffeine supplementation leads to improved CMJ height, Vmax, AP and PP without significantly affecting the duration of the different test phases. Therefore, caffeine supplementation may be employed as ergogenic aid in sports where CMJ performance has been associated with sport-specific performance enhancements. |
| Publikationsart: | Article |
| ISSN: | 1827-1928 0022-4707 |
| DOI: | 10.23736/s0022-4707.20.11099-5 |
| Zugangs-URL: | https://figshare.com/articles/journal_contribution/Caffeine_improves_performance_but_not_duration_of_the_countermovement_jump_phases/13280327/1/files/25609829.pdf https://pubmed.ncbi.nlm.nih.gov/32720780 https://pubmed.ncbi.nlm.nih.gov/32720780/ https://www.ncbi.nlm.nih.gov/pubmed/32720780 https://www.cabdirect.org/cabdirect/abstract/20210068182?q=(similar%3a19472901614) https://hdl.handle.net/20.500.14017/5861fed4-96a4-4170-bbd4-dc9e6316cb72 https://biblio.vub.ac.be/vubir/caffeine-improves-performance-but-not-duration-of-the-countermovement-jump-phases(5861fed4-96a4-4170-bbd4-dc9e6316cb72).html https://doi.org/10.23736/s0022-4707.20.11099-5 |
| Rights: | CC BY NC ND |
| Dokumentencode: | edsair.doi.dedup.....b8f3dc11f917639f1431e7f964831a31 |
| Datenbank: | OpenAIRE |
Nájsť tento článok vo Web of Science | Abstract: | 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 (Vmax), force production and duration of the eccentric, isometric and concentric muscle contraction phases of a CMJ.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.Caffeine ingestion improved jump height (+3.86%, P=0.02), Vmax (+1.49%, P=0.023), AP (+4.83%, P=0.006), and PP (+3.49%, P=0.004).Acute caffeine supplementation leads to improved CMJ height, Vmax, AP and PP without significantly affecting the duration of the different test phases. Therefore, caffeine supplementation may be employed as ergogenic aid in sports where CMJ performance has been associated with sport-specific performance enhancements. |
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| ISSN: | 18271928 00224707 |
| DOI: | 10.23736/s0022-4707.20.11099-5 |