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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Using Pre-Exercise Photobiomodulation Therapy Combining Super-Pulsed Lasers and Light-Emitting Diodes to Improve Performance in Progressive Cardiopulmonary Exercise Tests

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Miranda, Eduardo Foschini [1, 2] ; Vanin, Adriane Aver [1, 3] ; Tomazoni, Shaiane Silva [4] ; Grandinetti, Vanessa dos Santos [1, 2] ; Vicente de Paiva, Paulo Roberto [1, 2] ; Monteiro Machado, Caroline dos Santos [1] ; Damasceno Soares Monteiro, Kadma Karenina [1, 3] ; Casalechi, Heliodora Leao [1, 3] ; Camillo de Carvalho, Paulo de Tarso [3, 2] ; Pinto Leal-Junior, Ernesto Cesar [1, 3, 2]
Total Authors: 10
[1] Nove Julho Univ, Lab Phototherapy Sports & Exercise, Sao Paulo - Brazil
[2] Nove Julho Univ, Postgrad Program Biophoton Appl Hlth Sci, Sao Paulo - Brazil
[3] Nove Julho Univ, Postgrad Program Rehabil Sci, Sao Paulo - Brazil
[4] Univ Sao Paulo, Dept Pharmacol, BR-05508 Sao Paulo - Brazil
Total Affiliations: 4
Document type: Journal article
Source: JOURNAL OF ATHLETIC TRAINING; v. 51, n. 2, p. 129-135, FEB 2016.
Web of Science Citations: 21

Context: Skeletal muscle fatigue and exercise performance are novel areas of research and clinical application in the photobiomodulation field, and positive outcomes have been reported in several studies; however, the optimal measures have not been fully established. Objective: To assess the acute effect of photobiomodulation therapy (PBMT) combining superpulsed lasers (low-level laser therapy) and light-emitting diodes (LEDs) on muscle performance during a progressive cardiopulmonary treadmill exercise test. Design: Crossover study. Setting: Laboratory. Patients or Other Participants: Twenty untrained male volunteers (age - 26.0 +/- 6.0 years, height - 175.0 +/- 10.0 cm, mass = 74.8 +/- 10.9 kg). Intervention(s): Participants received PBMT with either combined superpulsed lasers and LED (active PBMT) or placebo at session 1 and the other treatment at session 2. All participants completed a cardiopulmonary test on a treadmill after each treatment. For active PBMT, we performed the irradiation at 17 sites on each lower limb (9 on the quadriceps, 6 on the hamstrings, and 2 on the gastrocnemius muscles), using a cluster with 12 diodes (four 905-nm superpulsed laser diodes with an average power of 0.3125 mW, peak power of 12.5 W for each diode, and frequency of 250 Hz; four 875-nm infrared LED diodes with an average power of 17.5 mW; and four 640-nm red LED diodes with an average power of 15 mW) and delivering a dose of 30 J per site. Main Outcome Measure(s): Distance covered, time until exhaustion, pulmonary ventilation, and dyspnea score. Results: The distance covered (1.96 +/- 0.30 versus 1.84 +/- 0.40 km, t(19) = 2.119, P < .001) and time until exhaustion on the cardiopulmonary test (780.2 +/- 91.0 versus 742.1 +/- 94.0 seconds, t(19) = 3.028, P < .001) was greater after active PBMT than after placebo. Pulmonary ventilation was greater (76.4 +/- 21.9 versus 74.3 +/- 19.8 L/min, t(19) = 0.180, P = .004) and the score for dyspnea was lower (3.0 {[}interquartile range = 0.5-9.0] versus 4.0 {[}0.0-9.0], U = 184.000, P < .001) after active PBMT than after placebo. Conclusions: The combination of lasers and LEDs increased the time, distance, and pulmonary ventilation and decreased the score of dyspnea during a cardiopulmonary test. (AU)

FAPESP's process: 13/19355-3 - Phototherapy associated to muscular training: Evaluation of different protocols of irradiation
Grantee:Adriane Aver Vanin
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 10/52404-0 - Low-level laser therapy in skeletal muscle fatigue and post-exercise recovery: Optimal parameters and effects in long-duration exercise
Grantee:Ernesto Cesar Pinto Leal Junior
Support type: Research Grants - Young Investigators Grants