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  1. AU="Guimaraes-Ferreira, Lucas"
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  3. AU="Fichtner, Maximilian"
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  1. Artikel: The acute effects of plyometric and sled towing stimuli with and without caffeine ingestion on vertical jump performance in professional soccer players

    Guimarães-Ferreira, Lucas

    Journal of the International Society of Sports Nutrition, 15:51

    2018  

    Abstract: BACKGROUND: Post-activation potentiation (PAP) is the phenomenon by which muscular performance is enhanced in response to a conditioning stimulus. PAP has typically been evidenced via improved counter movement jump (CMJ) performance. This study examined ... ...

    Abstract BACKGROUND: Post-activation potentiation (PAP) is the phenomenon by which muscular performance is enhanced in response to a conditioning stimulus. PAP has typically been evidenced via improved counter movement jump (CMJ) performance. This study examined the effects of PAP, with and without prior caffeine ingestion, on CMJ performance. METHODS: Twelve male professional soccer players (23 ± 5 years) performed two trials of plyometric exercises and sled towing 60 min after placebo or caffeine ingestion (5 mg.kg− 1) in a randomized, counterbalanced and double-blinded design. CMJ performance was assessed at baseline and 1, 3 and 5 min after the conditioning stimulus (T1, T3 and T5, respectively). RESULTS: Two way ANOVA main effects indicated a significant difference in jump height after the PAP protocol (F[3, 11] = 14.99, P < 0.001, partial η2 = 0.577). Analysis also indicated a significant difference in CMJ performance across conditions, with caffeine eliciting a greater response (F[1, 11] = 10.12, P = 0.009, partial η2 = 0.479). CMJ height was increased at T1, T3 and T5 in caffeine condition (5.07%, 5.75% and 5.40%, respectively; P < 0.01) compared to baseline. In the placebo condition, jump performance was increased at T3 (4.94%; P < 0.01) only. Jump height was higher in caffeine condition on T1, T3 and T5 (P < 0.05) but not on baseline (P > 0.05) compared to placebo. CONCLUSIONS: The results of this study suggest that acute plyometric and sled towing stimuli enhances jump performance and that this potentiation is augmented by caffeine ingestion in male soccer players.
    Schlagwörter Caffeine ; Sports performance ; Post-activation potentiation ; Vertical jump
    Sprache Englisch
    Dokumenttyp Artikel
    Datenquelle Fachrepositorium Lebenswissenschaften

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  2. Buch ; Online: Frontiers in Skeletal Muscle Wasting, Regeneration and Stem Cells

    Pinheiro, Carlos Hermano J. / Guimaraes-Ferreira, Lucas

    2016  

    Abstract: The search for knowledge on cellular and molecular mechanisms involved in skeletal muscle mass homeostasis and regeneration is an exciting scientific area and extremely important to develop therapeutic strategies for neuromuscular disorders and ... ...

    Abstract The search for knowledge on cellular and molecular mechanisms involved in skeletal muscle mass homeostasis and regeneration is an exciting scientific area and extremely important to develop therapeutic strategies for neuromuscular disorders and conditions related to muscle wasting. The mechanisms involved in the regulation of skeletal muscle mass and regeneration consist of molecular signaling pathways modulating protein synthesis and degradation, bioenergetics alterations and preserved function of muscle stem cells. In the last years, different kinds of stem cells has been reported to be localized into skeletal muscle (satellite cells, mesoangioblasts, progenitor interstitial cells and others) or migrate from non-muscle sites, such as bone marrow, to muscle tissue in response to injury. In addition, myogenic progenitor cells are also activated in skeletal muscle wasting disorders. The goal of this research topic is to highlight the available knowledge regarding skeletal muscle and stem cell biology in the context of both physiological and pathological conditions. Our purpose herein is to facilitate better dissemination of research into skeletal muscle physiology field
    Schlagwörter Physiology ; Science (General)
    Umfang 1 electronic resource (259 p.)
    Verlag Frontiers Media SA
    Dokumenttyp Buch ; Online
    Anmerkung English ; Open Access
    HBZ-ID HT020090555
    ISBN 9782889198320 ; 2889198324
    Datenquelle ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

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  3. Artikel ; Online: Not Another Caffeine Effect on Sports Performance Study-Nothing New or More to Do?

    Tallis, Jason / Guimaraes-Ferreira, Lucas / Clarke, Neil D

    Nutrients

    2022  Band 14, Heft 21

    Abstract: The performance-enhancing potential of acute caffeine consumption is firmly established with benefits for many aspects of physical performance and cognitive function summarised in a number of meta-analyses. Despite this, there remains near exponential ... ...

    Abstract The performance-enhancing potential of acute caffeine consumption is firmly established with benefits for many aspects of physical performance and cognitive function summarised in a number of meta-analyses. Despite this, there remains near exponential growth in research articles examining the ergogenic effects of caffeine. Many such studies are confirmatory of well-established ideas, and with a wealth of convincing evidence available, the value of further investigation may be questioned. However, several important knowledge gaps remain. As such, the purpose of this review is to summarise key knowledge gaps regarding the current understanding of the performance-enhancing effect of caffeine and justify their value for future investigation. The review will provide a particular focus on ten research priorities that will aid in the translation of caffeine's ergogenic potential to real-world sporting scenarios. The discussion presented here is therefore essential in guiding the design of future work that will aid in progressing the current understanding of the effects of caffeine as a performance enhancer.
    Mesh-Begriff(e) Caffeine/pharmacology ; Athletic Performance ; Performance-Enhancing Substances/pharmacology
    Chemische Substanzen Caffeine (3G6A5W338E) ; Performance-Enhancing Substances
    Sprache Englisch
    Erscheinungsdatum 2022-11-07
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Review
    ZDB-ID 2518386-2
    ISSN 2072-6643 ; 2072-6643
    ISSN (online) 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu14214696
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Agreement between Force Platform and Smartphone Application-Derived Measures of Vertical Jump Height in Youth Grassroots Soccer Players.

    Tallis, Jason / Morris, Rhys O / Duncan, Michael J / Eyre, Emma L J / Guimaraes-Ferreira, Lucas

    Sports (Basel, Switzerland)

    2023  Band 11, Heft 6

    Abstract: Given the importance of vertical jump assessments as a performance benchmarking tool, the assessment of neuromuscular function and indicator of health status, accurate assessment is essential. This study compared countermovement jump (CMJ) height ... ...

    Abstract Given the importance of vertical jump assessments as a performance benchmarking tool, the assessment of neuromuscular function and indicator of health status, accurate assessment is essential. This study compared countermovement jump (CMJ) height assessed using MyJump2 (JH
    Sprache Englisch
    Erscheinungsdatum 2023-06-13
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2704239-X
    ISSN 2075-4663 ; 2075-4663
    ISSN (online) 2075-4663
    ISSN 2075-4663
    DOI 10.3390/sports11060117
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Determining and comparing the optimum power loads in hexagonal and straight bar deadlifts in novice strength-trained males

    Duncan Michael J. / Guimaraes-Ferreira Lucas / Tallis Jason / Loturco Irineu / Weldon Anthony / Thapa Rohit K.

    Biomedical Human Kinetics, Vol 15, Iss 1, Pp 229-

    2023  Band 238

    Abstract: Study aim: This study aimed to determine and compare the ‘optimum power load’ in the hexagonal (HBDL) and straight (SBDL) bar deadlift exercises. ...

    Abstract Study aim: This study aimed to determine and compare the ‘optimum power load’ in the hexagonal (HBDL) and straight (SBDL) bar deadlift exercises.
    Schlagwörter muscle strength ; muscle power ; resistance training ; physical exertion ; athletic performance ; Sports medicine ; RC1200-1245 ; Physiology ; QP1-981
    Sprache Englisch
    Erscheinungsdatum 2023-01-01T00:00:00Z
    Verlag Sciendo
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  6. Artikel ; Online: Effects of Acute Caffeine Ingestion on Cognitive Performance before and after Repeated Small-Sided Games in Professional Soccer Players: A Placebo-Controlled, Randomized Crossover Trial.

    de Almeida, Rodrigo Freire / de Oliveira, Mateus / Furigo, Isadora Clivatti / Aquino, Rodrigo / Clarke, Neil David / Tallis, Jason / Guimaraes-Ferreira, Lucas

    Nutrients

    2023  Band 15, Heft 14

    Abstract: Soccer is a team sport that requires players to process a significant amount of information quickly and respond with both speed and accuracy to the ever-changing demands of the game. As such, success in soccer depends not only on physical attributes but ... ...

    Abstract Soccer is a team sport that requires players to process a significant amount of information quickly and respond with both speed and accuracy to the ever-changing demands of the game. As such, success in soccer depends not only on physical attributes but also on cognitive abilities such as perception and decision-making. The aim of the current study was to investigate the acute effects of caffeine ingestion on Stroop test performance before and after repeated small-sided games (SSG) in professional soccer players. Twelve professional male soccer players (29 ± 4.1 years; 78.1 ± 7.7 kg body mass) participated in this study. A randomized crossover double-blind placebo-controlled trial was used. Caffeine (5 mg.kg
    Mesh-Begriff(e) Humans ; Male ; Caffeine/pharmacology ; Soccer/physiology ; Cross-Over Studies ; Athletic Performance/physiology ; Cognition ; Eating
    Chemische Substanzen Caffeine (3G6A5W338E)
    Sprache Englisch
    Erscheinungsdatum 2023-07-10
    Erscheinungsland Switzerland
    Dokumenttyp Randomized Controlled Trial ; Journal Article
    ZDB-ID 2518386-2
    ISSN 2072-6643 ; 2072-6643
    ISSN (online) 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu15143094
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  7. Artikel ; Online: Role of the phosphocreatine system on energetic homeostasis in skeletal and cardiac muscles.

    Guimarães-Ferreira, Lucas

    Einstein (Sao Paulo, Brazil)

    2014  Band 12, Heft 1, Seite(n) 126–131

    Abstract: Adenosine triphosphate is the present energy currency in the body, and is used in various cellular and indispensable processes for the maintenance of cell homeostasis. The regeneration mechanisms of adenosine triphosphate, from the product of its ... ...

    Abstract Adenosine triphosphate is the present energy currency in the body, and is used in various cellular and indispensable processes for the maintenance of cell homeostasis. The regeneration mechanisms of adenosine triphosphate, from the product of its hydrolysis - adenosine diphosphate - are therefore necessary. Phosphocreatine is known as its quickest form of regeneration, by means of the enzyme creatine kinase. Thus, the primary function of this system is to act as a temporal energy buffer. Nevertheless, over the years, several other functions were attributed to phosphocreatine. This occurs as various isoforms of creatine kinase isoforms have been identified with a distinct subcellular location and functionally coupled with the sites that generate and use energy, in the mitochondria and cytosol, respectively. The present study discussed the central and complex role that the phosphocreatine system performs in energy homeostasis in muscle cells, as well as its alterations in pathological conditions.
    Mesh-Begriff(e) Creatine Kinase/metabolism ; Energy Metabolism/physiology ; Homeostasis/physiology ; Humans ; Muscle, Skeletal/metabolism ; Myocardium/metabolism ; Phosphocreatine/metabolism
    Chemische Substanzen Phosphocreatine (020IUV4N33) ; Creatine Kinase (EC 2.7.3.2)
    Sprache Englisch
    Erscheinungsdatum 2014-04-12
    Erscheinungsland Brazil
    Dokumenttyp Journal Article ; Review
    ZDB-ID 2418293-X
    ISSN 2317-6385 ; 1679-4508
    ISSN (online) 2317-6385
    ISSN 1679-4508
    DOI 10.1590/s1679-45082014rb2741
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel ; Online: Effect of Caffeine Ingestion on Indirect Markers of Exercise-Induced Muscle Damage: A Systematic Review of Human Trials.

    Caldas, Leonardo Carvalho / Salgueiro, Rafael Barreira / Clarke, Neil David / Tallis, Jason / Barauna, Valerio Garrone / Guimaraes-Ferreira, Lucas

    Nutrients

    2022  Band 14, Heft 9

    Abstract: The effect of caffeine on mitigating exercise-induced muscle damage (EIMD) is still poorly understood, but it was hypothesized that caffeine could contribute to decreasing delayed onset muscle soreness, attenuating temporary loss of strength, and ... ...

    Abstract The effect of caffeine on mitigating exercise-induced muscle damage (EIMD) is still poorly understood, but it was hypothesized that caffeine could contribute to decreasing delayed onset muscle soreness, attenuating temporary loss of strength, and reducing circulating levels of blood markers of muscle damage. However, evidence is not conclusive and beneficial effects of caffeine ingestion on EIMD are not always observed. Factors, such as the type of exercise that induces muscle damage, supplementation protocol, and type of marker analyzed contribute to the differences between the studies. To expand knowledge on the role of caffeine supplementation in EIMD, this systematic review aimed to investigate the effect of caffeine supplementation on different markers of muscle damage. Fourteen studies were included, evaluating the effect of caffeine on indirect muscle damage markers, including blood markers (nine studies), pain perception (six studies), and MVC maximal voluntary contraction force (four studies). It was observed in four studies that repeated administration of caffeine between 24 and 72 h after muscle damage can attenuate the perception of pain in magnitudes ranging from 3.9% to 26%. The use of a single dose of caffeine pre-exercise (five studies) or post-exercise (one study) did not alter the circulating blood levels of creatine kinase (CK). Caffeine supplementation appears to attenuate pain perception, but this does not appear to be related to an attenuation of EIMD, per se. Furthermore, the effect of caffeine supplementation after muscle damage on strength recovery remains inconclusive due to the low number of studies found (four studies) and controversial results for both dynamic and isometric strength tests.
    Mesh-Begriff(e) Biomarkers ; Caffeine/pharmacology ; Eating ; Exercise/physiology ; Humans ; Muscle, Skeletal ; Muscles ; Myalgia
    Chemische Substanzen Biomarkers ; Caffeine (3G6A5W338E)
    Sprache Englisch
    Erscheinungsdatum 2022-04-23
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Review ; Systematic Review
    ZDB-ID 2518386-2
    ISSN 2072-6643 ; 2072-6643
    ISSN (online) 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu14091769
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  9. Artikel: Acute Caffeine Ingestion did not Enhance Punch Performance in Professional Mixed-Martial Arts Athletes

    de Azevedo, Arthur Persio / Guerra, Mauro Antônio / Caldas, Leonardo Carvalho / Guimarães-Ferreira, Lucas

    Nutrients. 2019 June 25, v. 11, no. 6

    2019  

    Abstract: Mixed martial arts (MMA) is a combat sport where competitors utilize strikes (punches, kicks, knees, and elbows) and submission techniques to defeat opponents in a cage or ring. The aim of this study was to investigate the effect of acute caffeine ... ...

    Abstract Mixed martial arts (MMA) is a combat sport where competitors utilize strikes (punches, kicks, knees, and elbows) and submission techniques to defeat opponents in a cage or ring. The aim of this study was to investigate the effect of acute caffeine ingestion on punching performance by professional MMA athletes. The study used a double-blind, counterbalanced, crossover design. Eleven professional MMA competitors (27.6 ± 4.3 years and 83.5 ± 7.8 kg of body weight) ingested a dose of caffeine (5 mg·kg−1) or placebo 60 min prior to three sets of punching. Each set consisted of 15 s, at which participants were asked to perform straight punches with maximum strength and frequency with his dominant arm. After each set, a 45 s recovery time was applied. Using a force transducer attached to a cushioned plate, the punch frequency, and mean and maximal punch force was measured. The readiness to invest in both physical (RTIPE) and mental (RTIME) effort was assessed prior to the protocol, and the rating of perceived exertion (RPE) was recorded after. Caffeine ingestion did not result in increased punching frequency, mean and maximum punch force, RTIPE, RTIME, and RPE when compared to the placebo condition. Based on these results, acute caffeine ingestion did not improve punching performance in professional MMA athletes.
    Schlagwörter athletes ; body weight ; caffeine ; cross-over studies ; elbows ; knees ; placebos ; sports ; transducers (equipment)
    Sprache Englisch
    Erscheinungsverlauf 2019-0625
    Erscheinungsort Multidisciplinary Digital Publishing Institute
    Dokumenttyp Artikel
    ZDB-ID 2518386-2
    ISSN 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu11061422
    Datenquelle NAL Katalog (AGRICOLA)

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  10. Artikel ; Online: Acute Caffeine Ingestion did not Enhance Punch Performance in Professional Mixed-Martial Arts Athletes.

    de Azevedo, Arthur Persio / Guerra, Mauro Antônio / Caldas, Leonardo Carvalho / Guimarães-Ferreira, Lucas

    Nutrients

    2019  Band 11, Heft 6

    Abstract: Mixed martial arts (MMA) is a combat sport where competitors utilize strikes (punches, kicks, knees, and elbows) and submission techniques to defeat opponents in a cage or ring. The aim of this study was to investigate the effect of acute caffeine ... ...

    Abstract Mixed martial arts (MMA) is a combat sport where competitors utilize strikes (punches, kicks, knees, and elbows) and submission techniques to defeat opponents in a cage or ring. The aim of this study was to investigate the effect of acute caffeine ingestion on punching performance by professional MMA athletes. The study used a double-blind, counterbalanced, crossover design. Eleven professional MMA competitors (27.6 ± 4.3 years and 83.5 ± 7.8 kg of body weight) ingested a dose of caffeine (5 mg·kg
    Mesh-Begriff(e) Adult ; Athletes ; Athletic Performance ; Brazil ; Caffeine/administration & dosage ; Central Nervous System Stimulants/administration & dosage ; Cross-Over Studies ; Double-Blind Method ; Health Status ; Humans ; Male ; Martial Arts ; Muscle Strength ; Time Factors ; Young Adult
    Chemische Substanzen Central Nervous System Stimulants ; Caffeine (3G6A5W338E)
    Sprache Englisch
    Erscheinungsdatum 2019-06-25
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Randomized Controlled Trial
    ZDB-ID 2518386-2
    ISSN 2072-6643 ; 2072-6643
    ISSN (online) 2072-6643
    ISSN 2072-6643
    DOI 10.3390/nu11061422
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