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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | Universidade Federal de Pernambuco (UFPE) | - |
Autor(es): dc.contributor | Universidade Federal de São Carlos (UFSCar) | - |
Autor(es): dc.creator | Dutra, Yago Medeiros [UNESP] | - |
Autor(es): dc.creator | Claus, Gabriel Machado [UNESP] | - |
Autor(es): dc.creator | Malta, Elvis de Souza [UNESP] | - |
Autor(es): dc.creator | Seda, Daniela Moraes de Franco [UNESP] | - |
Autor(es): dc.creator | Zago, Anderson Saranz [UNESP] | - |
Autor(es): dc.creator | Campos, Eduardo Zapaterra | - |
Autor(es): dc.creator | Ferraresi, Cleber | - |
Autor(es): dc.creator | Zagatto, Alessandro Moura [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:45:24Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:45:24Z | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-01-14 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.3389/fphys.2020.607302 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/205823 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/205823 | - |
Descrição: dc.description | Purpose: The aim of the current study was to investigate the effects of photobiomodulation therapy (PBMT) applied 30 min or 6 h prior to cycling on blood flow velocity and plasma nitrite concentrations at rest, time to exhaustion, cardiorespiratory responses, blood acid-base balance, and K+ and lactate concentrations during exercise. Methods: In a randomized, crossover design, 13 healthy untrained men randomly completed four cycling bouts until exhaustion at the severe-intensity domain (i.e., above respiratory compensation point). Thirty minutes or 6 h prior to the cycling trials, participants were treated with PBMT on the quadriceps, hamstrings, and gastrocnemius muscles of both limbs using a multi-diode array (11 cm × 30 cm with 264 diodes) at doses of 152 J or a sham irradiation (with device turned off, placebo). Blood samples were collected before and 30 min or 6 h after treatments to measure plasmatic nitrite concentrations. Doppler ultrasound exams of the femoral artery were also performed at the same time points. Cardiorespiratory responses, blood acid-base balance, and K+ and lactate concentrations were monitored during exercise sessions. Results: PBMT did not improve the time to exhaustion (p = 0.30). At rest, no differences were found in the peak systolic velocity (p = 0.97) or pulsatility index (p = 0.83) in the femoral artery, and in plasma nitrite concentrations (p = 0.47). During exercise, there were no differences for any cardiorespiratory response monitored (heart rate, p = 0.15; oxygen uptake, p = 0.15; pulmonary ventilation, p = 0.67; carbon dioxide output, p = 0.93; and respiratory exchange ratio, p = 0.32), any blood acid-base balance indicator (pH, p = 0.74; base excess, p = 0.33; bicarbonate concentration, p = 0.54), or K+ (p = 0.22) and lactate (p = 0.55) concentrations. Conclusions: PBMT at 152 J applied 30 min or 6 h before cycling at severe-intensity did not alter resting plasma nitrite and blood flow velocity in the femoral artery, exercise-induced physiological responses, or time to exhaustion in healthy untrained men. | - |
Descrição: dc.description | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | - |
Descrição: dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
Descrição: dc.description | Post-Graduate Program in Movement Sciences Laboratory of Physiology and Sport Performance (LAFIDE) Department of Physical Education School of Sciences São Paulo State University – UNESP | - |
Descrição: dc.description | Post-Graduate Program in Movement Sciences Department of Physical Education School of Sciences São Paulo State University – UNESP | - |
Descrição: dc.description | Department of Physical Education Federal University of Pernambuco | - |
Descrição: dc.description | Physical Therapy Department Federal University of Sao Carlos (UFSCar) | - |
Descrição: dc.description | Post-Graduate Program in Movement Sciences Laboratory of Physiology and Sport Performance (LAFIDE) Department of Physical Education School of Sciences São Paulo State University – UNESP | - |
Descrição: dc.description | Post-Graduate Program in Movement Sciences Department of Physical Education School of Sciences São Paulo State University – UNESP | - |
Descrição: dc.description | CAPES: 001 | - |
Descrição: dc.description | FAPESP: 2017/11255-0 | - |
Descrição: dc.description | FAPESP: 2017/14187-6 | - |
Descrição: dc.description | FAPESP: 2017/21724-8 | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Frontiers in Physiology | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | cardiorespiratory fitness | - |
Palavras-chave: dc.subject | ergogenic effects | - |
Palavras-chave: dc.subject | exercise tests | - |
Palavras-chave: dc.subject | low-level laser therapy | - |
Palavras-chave: dc.subject | regional blood flow | - |
Título: dc.title | Photobiomodulation 30 min or 6 h Prior to Cycling Does Not Alter Resting Blood Flow Velocity, Exercise-Induced Physiological Responses or Time to Exhaustion in Healthy Men | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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