Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling Performance
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1249/MSS.0000000000002394 http://hdl.handle.net/11449/205264 |
Resumo: | Purpose The purpose of the present study was to investigate the ergogenic effects of two doses of photobiomodulation therapy (PBMT) in comparison to placebo on markers of respiratory and muscle activity, blood acid-base, ion and lactate concentrations, indicators of muscle fatigue (global, central, and peripheral), and time to exhaustion in severe-intensity cycling. Methods Two separate studies were performed, both in a pseudorandomized and balanced, crossover design. In study 1, 14 male recreational cyclists completed three constant-load, severe-intensity cycling bouts that were duration matched. The PBMT (18 × 38 cm array with 200 diodes) treatments occurred before bouts at 260, 130, or 0 J (placebo) doses. EMG activity of selected lower limb musculature was assessed during each bout. Maximal voluntary contractions of knee extension with peripheral nerve stimulations and EMG activity evaluation of vastus lateralis was also performed before and after cycling. In study 2, 13 recreational cyclists performed three bouts of constant-load, severe-intensity cycling until exhaustion, preceded by PBMT as detailed previously. Blood lactate concentrations, respiratory responses, EMG activity, and capillary gasometry aspects were monitored. Results In both studies, there were no interactions effects (time-condition) on the EMG activity, which was displayed as root mean square (P ≥ 0.168) and median frequency (P ≥ 0.055) during cycling. In study 1, there were no interaction effects on the indicators of muscle fatigue after exercise (P ≥ 0.130). In study 2, there were no differences on time to exhaustion (P = 0.353) and no interaction effects among the physiological responses monitored (P ≥ 0.082). Conclusions Based on our findings, the PBMT at 260- and 130-J doses does not have a beneficial effect on muscle fatigue, cycling performance, metabolic parameters, and muscle activity in male recreational cyclists. |
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Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling PerformanceERGOGENIC AIDLED THERAPYLOW-LEVEL LASER THERAPYPHYSICAL PERFORMANCETWITCH INTERPOLATION TECHNIQUEPurpose The purpose of the present study was to investigate the ergogenic effects of two doses of photobiomodulation therapy (PBMT) in comparison to placebo on markers of respiratory and muscle activity, blood acid-base, ion and lactate concentrations, indicators of muscle fatigue (global, central, and peripheral), and time to exhaustion in severe-intensity cycling. Methods Two separate studies were performed, both in a pseudorandomized and balanced, crossover design. In study 1, 14 male recreational cyclists completed three constant-load, severe-intensity cycling bouts that were duration matched. The PBMT (18 × 38 cm array with 200 diodes) treatments occurred before bouts at 260, 130, or 0 J (placebo) doses. EMG activity of selected lower limb musculature was assessed during each bout. Maximal voluntary contractions of knee extension with peripheral nerve stimulations and EMG activity evaluation of vastus lateralis was also performed before and after cycling. In study 2, 13 recreational cyclists performed three bouts of constant-load, severe-intensity cycling until exhaustion, preceded by PBMT as detailed previously. Blood lactate concentrations, respiratory responses, EMG activity, and capillary gasometry aspects were monitored. Results In both studies, there were no interactions effects (time-condition) on the EMG activity, which was displayed as root mean square (P ≥ 0.168) and median frequency (P ≥ 0.055) during cycling. In study 1, there were no interaction effects on the indicators of muscle fatigue after exercise (P ≥ 0.130). In study 2, there were no differences on time to exhaustion (P = 0.353) and no interaction effects among the physiological responses monitored (P ≥ 0.082). Conclusions Based on our findings, the PBMT at 260- and 130-J doses does not have a beneficial effect on muscle fatigue, cycling performance, metabolic parameters, and muscle activity in male recreational cyclists.Laboratory of Physiology and Sport Performance (LAFIDE) São Paulo State University (UNESP)Exercise Physiology Laboratory Department of Kinesiology University of AlabamaBiomedical Engineering Postgraduate Program Universidade BrasilLaboratory of Physiology and Sport Performance (LAFIDE) São Paulo State University (UNESP)Universidade Estadual Paulista (Unesp)University of AlabamaUniversidade BrasilDutra, Yago Medeiros [UNESP]Claus, Gabriel MacHado [UNESP]Malta, Elvis De Souza [UNESP]Brisola, Gabriel Motta Pinheiro [UNESP]Esco, Michael R.Ferraresi, CleberZagatto, Alessandro Moura [UNESP]2021-06-25T10:12:28Z2021-06-25T10:12:28Z2020-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2448-2458http://dx.doi.org/10.1249/MSS.0000000000002394Medicine and Science in Sports and Exercise, v. 52, n. 11, p. 2448-2458, 2020.1530-03150195-9131http://hdl.handle.net/11449/20526410.1249/MSS.00000000000023942-s2.0-85092093294Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMedicine and Science in Sports and Exerciseinfo:eu-repo/semantics/openAccess2021-10-23T12:24:11Zoai:repositorio.unesp.br:11449/205264Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T12:24:11Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling Performance |
title |
Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling Performance |
spellingShingle |
Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling Performance Dutra, Yago Medeiros [UNESP] ERGOGENIC AID LED THERAPY LOW-LEVEL LASER THERAPY PHYSICAL PERFORMANCE TWITCH INTERPOLATION TECHNIQUE |
title_short |
Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling Performance |
title_full |
Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling Performance |
title_fullStr |
Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling Performance |
title_full_unstemmed |
Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling Performance |
title_sort |
Acute Photobiomodulation by LED Does Not Alter Muscle Fatigue and Cycling Performance |
author |
Dutra, Yago Medeiros [UNESP] |
author_facet |
Dutra, Yago Medeiros [UNESP] Claus, Gabriel MacHado [UNESP] Malta, Elvis De Souza [UNESP] Brisola, Gabriel Motta Pinheiro [UNESP] Esco, Michael R. Ferraresi, Cleber Zagatto, Alessandro Moura [UNESP] |
author_role |
author |
author2 |
Claus, Gabriel MacHado [UNESP] Malta, Elvis De Souza [UNESP] Brisola, Gabriel Motta Pinheiro [UNESP] Esco, Michael R. Ferraresi, Cleber Zagatto, Alessandro Moura [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) University of Alabama Universidade Brasil |
dc.contributor.author.fl_str_mv |
Dutra, Yago Medeiros [UNESP] Claus, Gabriel MacHado [UNESP] Malta, Elvis De Souza [UNESP] Brisola, Gabriel Motta Pinheiro [UNESP] Esco, Michael R. Ferraresi, Cleber Zagatto, Alessandro Moura [UNESP] |
dc.subject.por.fl_str_mv |
ERGOGENIC AID LED THERAPY LOW-LEVEL LASER THERAPY PHYSICAL PERFORMANCE TWITCH INTERPOLATION TECHNIQUE |
topic |
ERGOGENIC AID LED THERAPY LOW-LEVEL LASER THERAPY PHYSICAL PERFORMANCE TWITCH INTERPOLATION TECHNIQUE |
description |
Purpose The purpose of the present study was to investigate the ergogenic effects of two doses of photobiomodulation therapy (PBMT) in comparison to placebo on markers of respiratory and muscle activity, blood acid-base, ion and lactate concentrations, indicators of muscle fatigue (global, central, and peripheral), and time to exhaustion in severe-intensity cycling. Methods Two separate studies were performed, both in a pseudorandomized and balanced, crossover design. In study 1, 14 male recreational cyclists completed three constant-load, severe-intensity cycling bouts that were duration matched. The PBMT (18 × 38 cm array with 200 diodes) treatments occurred before bouts at 260, 130, or 0 J (placebo) doses. EMG activity of selected lower limb musculature was assessed during each bout. Maximal voluntary contractions of knee extension with peripheral nerve stimulations and EMG activity evaluation of vastus lateralis was also performed before and after cycling. In study 2, 13 recreational cyclists performed three bouts of constant-load, severe-intensity cycling until exhaustion, preceded by PBMT as detailed previously. Blood lactate concentrations, respiratory responses, EMG activity, and capillary gasometry aspects were monitored. Results In both studies, there were no interactions effects (time-condition) on the EMG activity, which was displayed as root mean square (P ≥ 0.168) and median frequency (P ≥ 0.055) during cycling. In study 1, there were no interaction effects on the indicators of muscle fatigue after exercise (P ≥ 0.130). In study 2, there were no differences on time to exhaustion (P = 0.353) and no interaction effects among the physiological responses monitored (P ≥ 0.082). Conclusions Based on our findings, the PBMT at 260- and 130-J doses does not have a beneficial effect on muscle fatigue, cycling performance, metabolic parameters, and muscle activity in male recreational cyclists. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-11-01 2021-06-25T10:12:28Z 2021-06-25T10:12:28Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1249/MSS.0000000000002394 Medicine and Science in Sports and Exercise, v. 52, n. 11, p. 2448-2458, 2020. 1530-0315 0195-9131 http://hdl.handle.net/11449/205264 10.1249/MSS.0000000000002394 2-s2.0-85092093294 |
url |
http://dx.doi.org/10.1249/MSS.0000000000002394 http://hdl.handle.net/11449/205264 |
identifier_str_mv |
Medicine and Science in Sports and Exercise, v. 52, n. 11, p. 2448-2458, 2020. 1530-0315 0195-9131 10.1249/MSS.0000000000002394 2-s2.0-85092093294 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Medicine and Science in Sports and Exercise |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2448-2458 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1803046112796344320 |