| Texto completo | |
| Autor(es): |
Beltrame, Thomas
[1, 2]
;
Ferraresi, Cleber
[3, 4, 5, 6, 7]
;
Parizotto, Nivaldo Antonio
[4, 5, 7]
;
Bagnato, Vanderlei Salvador
[3]
;
Hughson, Richard L.
[2, 8]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Conselho Nacl Desenvolvimento Cient & Tecnol CNPq, Brasilia, DF - Brazil
[2] Univ Waterloo, Fac Appl Hlth Sci, Waterloo, ON - Canada
[3] Univ Sao Paulo, Phys Inst Sao Carlos, Opt Grp, Sao Carlos, SP - Brazil
[4] Univ Fed Sao Carlos, Postgrad Program Biotechnol, Sao Paulo - Brazil
[5] Univ Fed Sao Carlos, Dept Phys Therapy, Lab Electrothermophotherapy, Sao Paulo - Brazil
[6] Univ Sagrado Coracao, Phys Therapy Dept, Postgrad Program Phys Therapy Funct Hlth, Sao Paulo - Brazil
[7] Univ Brasil, Postgrad Program Biomed Engn, Sao Paulo - Brazil
[8] Schlegel Univ Waterloo, Res Inst Aging, 250 Laurelwood Dr, Waterloo, ON N2J 0E2 - Canada
Número total de Afiliações: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Lasers in Medical Science; v. 33, n. 5, p. 1065-1071, JUL 2018. |
| Citações Web of Science: | 1 |
| Resumo | |
Light-emitting diodes (LEDs) might have a beneficial impact on cytochrome-c oxidase enzyme activity. Thus, it was hypothesized that photobiomodulation by light-emitting diode therapy (LEDT) could influence aerobic metabolism dynamics. Possible LEDT-mediated aerobic improvements were investigated mainly by a precise characterization of the pulmonary O (2) uptake dynamics during moderate exercise transitions. Eight healthy young adults were enrolled in this randomized, double-blind, placebo-controlled, crossover study. A multi-diode array of LEDs was used for muscular pre-conditioning 30 min and 6 h before exercise testing. Pulmonary O (2) uptake, carbon dioxide output, cardiac output, heart rate, stroke volume, and total arteriovenous oxygen difference dynamics were evaluated by frequency domain analysis. Comparisons revealed no statistical (p > 0.05) differences between LEDT and placebo, suggesting no significant changes in aerobic system dynamics. These results challenge earlier publications that reported changes in pulmonary O (2) uptake during incremental exercise until exhaustion after LEDT. Perhaps, increments in peak pulmonary O (2) uptake after LEDT may be a consequence of higher exercise tolerance caused by non-aerobic-related factors as opposed to an improved aerobic response. (AU) | |
| Processo FAPESP: | 10/07194-7 - Uso das terapias laser e LED (Light-Emitting Diode) de baixa intensidade para aumentar o desempenho muscular: do in vitro e experimental ao uso clínico |
| Beneficiário: | Cleber Ferraresi |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |