TY - JOUR
T1 - Acute effects using light-emitting diode therapy (ledt) for muscle function during isometric exercise in asthma patients
T2 - A pilot study
AU - Costa, Ivan Peres
AU - Politti, Fabiano
AU - Cahalin, Lawrence P.
AU - Carvalho, Etiene Farah Teixeira De
AU - Costa, Dirceu
AU - Corrêa, João Carlos Ferrari
AU - Vieira, Rodolfo P.
AU - Oliveira-Junior, Manoel Carneiro
AU - De Angelis, Kátia
AU - Stirbulov, Roberto
AU - Dal Corso, Simone
AU - De Carvalho, Paulo De Tarso
AU - Parizotto, Nivaldo Antonio
AU - Arena, Ross
AU - Sampaio, Luciana Maria Malosá
N1 - Funding Information:
Luciana Maria Malosá Sampaio is an established investigator supported by Conselho Nacional de Desenvolvi-mento Científico e Tecnológico (CNPq, Brazil) Process no. 308559/2013-14, CAPES, and FAPESP (2016-11850-3). Rodolfo P. Vieira is an established investigator supported by Conselho Nacional de Desenvolvimento Científico e Tec-nológico (CNPq, Brazil) Process no. 311335/2015-2 FAPESP (Grant 2012/15165-2).
PY - 2019
Y1 - 2019
N2 - The aim of this study was to evaluate the effectiveness of acute application of LEDT in improving peripheral muscle performance during isometric exercise in patients with asthma. Eleven patients, with a mean age 38 ± 10, underwent a single LEDT and sham application in the femoral quadriceps' dominant member (cluster with 50 LED = 850 nm, 50 mW, 15 s; 37.5 J), 48 h apart in a randomized crossover design. Before and after LEDT and sham application, the patients were submitted an isometric endurance test (60% of the maximum isometric voluntary contraction), up to the limit of tolerance simultaneous recording of surface electromyography. There were no statistically significant differences between groups at the time of contraction (before 41±14 versus 44±16; after 46±12 versus 45±20 s) during the isometric contraction test and inflammatory markers before and after a single LEDT application. A single application of LEDT in the parameters and dose according to the equipment used in the study were not able to promote differences in the time of contraction and the fatigue response in asthmatic patients. However, the chronic effects of LEDT application for improving muscle performance in these patients are unknown and may present different responses during applications for a long time.
AB - The aim of this study was to evaluate the effectiveness of acute application of LEDT in improving peripheral muscle performance during isometric exercise in patients with asthma. Eleven patients, with a mean age 38 ± 10, underwent a single LEDT and sham application in the femoral quadriceps' dominant member (cluster with 50 LED = 850 nm, 50 mW, 15 s; 37.5 J), 48 h apart in a randomized crossover design. Before and after LEDT and sham application, the patients were submitted an isometric endurance test (60% of the maximum isometric voluntary contraction), up to the limit of tolerance simultaneous recording of surface electromyography. There were no statistically significant differences between groups at the time of contraction (before 41±14 versus 44±16; after 46±12 versus 45±20 s) during the isometric contraction test and inflammatory markers before and after a single LEDT application. A single application of LEDT in the parameters and dose according to the equipment used in the study were not able to promote differences in the time of contraction and the fatigue response in asthmatic patients. However, the chronic effects of LEDT application for improving muscle performance in these patients are unknown and may present different responses during applications for a long time.
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U2 - 10.1155/2019/7501870
DO - 10.1155/2019/7501870
M3 - Article
C2 - 30775383
AN - SCOPUS:85060801029
VL - 2019
JO - BioMed Research International
JF - BioMed Research International
SN - 2314-6133
M1 - 7501870
ER -