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Phototherapy in skeletal muscle performance and recovery after exercise: Effect of different light sources combination

Grant number: 13/06782-0
Support type:Scholarships in Brazil - Master
Effective date (Start): January 01, 2014
Effective date (End): December 31, 2014
Field of knowledge:Health Sciences - Physiotherapy and Occupational Therapy
Principal researcher:Ernesto Cesar Pinto Leal Junior
Grantee:Fernanda Colella Antonialli
Home Institution: Universidade Nove de Julho (UNINOVE). Campus Vergueiro. São Paulo , SP, Brazil
Associated research grant:10/52404-0 - Low-level laser therapy in skeletal muscle fatigue and post-exercise recovery: Optimal parameters and effects in long-duration exercise, AP.JP


Recent studies with phototherapy have shown positive results delaying skeletal muscle fatigue and improving the status of biochemical markers related to skeletal muscle recovery when these therapies were applied before exercise. However, several factors still remain unknown such as: optimal doses and treatment parameters, mechanisms, the effects in long-duration exercises and long-term effects in skeletal muscle recovery. At same way, still it is not completely known the effects of combination of different light sources (lasers and LEDs) on skeletal muscle performance and recovery after exercise. With these factors in mind, the aims of this project are: To evaluate the long-term effects of phototherapy with the combination of different light sources on skeletal muscle performance and post-exercise recovery. It will be performed a randomized, double-blinded, placebo-controlled trial, with voluntary participation of healthy subjects. We will analyze parameters related to volunteers exercise performance (torque peak / maximum voluntary contraction - MVC), delayed onset muscle soreness (DOMS), and biochemical marker of muscle damage (CK). The analysis will be performed before exercise protocols, after 1 minute, and 1, 24, 48, 72 and 96 hours after the end of exercise protocol.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ANTONIALLI, FERNANDA COLELLA; DE MARCHI, THIAGO; TOMAZONI, SHAIANE SILVA; VANIN, ADRIANE AVER; GRANDINETTI, VANESSA DOS SANTOS; VICENTE DE PAIVA, PAULO ROBERTO; PINTO, HENRIQUE DANTAS; MIRANDA, EDUARDO FOSCHINI; CAMILLO DE CARVALHO, PAULO DE TARSO; PINTO LEAL-JUNIOR, ERNESTO CESAR. Phototherapy in skeletal muscle performance and recovery after exercise: effect of combination of super-pulsed laser and light-emitting diodes. Lasers in Medical Science, v. 29, n. 6, p. 1967-1976, . (13/06782-0, 10/52404-0)

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