Isolated and combined effects of phototherapy and criotherapy in post-exercise skeletal muscle recovery

• Grant number: 14/04557-2
• Support Opportunities: Scholarships in Brazil - Master
• Start date: October 01, 2015
• End date: February 29, 2016
• Field of knowledge: Health Sciences - Physiotherapy and Occupational Therapy
• Principal Investigator: Ernesto Cesar Pinto Leal Junior
• Grantee: Paulo Roberto Vicente de Paiva
• Host 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

Abstract

Post-exercise recovery is crucial in high-level sports and currently a large number of modalities is employed with this aim, among them we can highlight active recovery, massage, contrast therapy using hot and cold water, hydrotherapy, non-steroidal anti-inflammatory drugs, and others. Cryotherapy consists in using ice or water in low temperatures, and it is the widely used modality employed trying to accelerate post-exercise recovery, however, the scientific evidence for its' modality use is extremely limited. Recent studies with phototherapy have demonstrating positive results in delaying skeletal muscle fatigue and in recovery of biochemical markers related to muscular recovery. However, several aspects remain unknown such as: optimal doses and parameters, mechanisms of action, effects in long-duration exercises, an long-term effects in skeletal muscle recovery. At same way, it is still don't totally understood the effects of combination of different light sources (lasers and LEDs) on performance and post-exercise recovery. With these aspects in mind, this projects aims to determine effects of phototherapy with lasers and LEDs and cryotherapy when used isolated or combined on skeletal muscle recovery after eccentric contractions of knee extensors muscles in healthy volunteers. 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), biochemical marker of muscle damage (CK), and biochemical marker of inflammation (interleukin-6, IL-6). (AU)

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)

VICENTE DE PAIVA, PAULO ROBERTO; TOMAZONI, SHAIANE SILVA; JOHNSON, DOUGLAS SCOTT; VANIN, ADRIANE AVER; ALBUQUERQUE-PONTES, GIANNA MOES; MONTEIRO MACHADO, CAROLINE DOS SANTOS; CASALECHI, HELIODORA LEO; CAMILLO DE CARVALHO, PAULO DE TARSO; PINTO LEAL-JUNIOR, ERNESTO CESAR. Photobiomodulation therapy (PBMT) and/or cryotherapy in skeletal muscle restitution, what is better? A randomized, double-blinded, placebo-controlled clinical trial. Lasers in Medical Science, v. 31, n. 9, p. 1925-1933, DEC 2016. (14/04557-2, 10/52404-0)