Effect of Low-Level Laser Therapy (808 nm) in Skeletal Muscle After Resistance Exercise Training in Rats

Patrocinio, Tatiane; Sardim, André Cabral; Assis, Lívia; Fernandes, Kelly Rossetti; Rodrigues, Natália Camargo; Rennó, Ana Cláudia Muniz

doi:10.1089/pho.2013.3540

Cited by 21 publications

(12 citation statements)

References 33 publications

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“…A plausible hypothesis to explain the findings from our study, as well as those reported by Patrocinio et al (2013) and Ferraresi et al (2011), is the acceleration of muscle recovery after an exercise session induced by LLLT/LEDT. This effect has been suggested by animal model studies (Camargo et al 2012;Liu et al 2009;Sussai et al 2010) through biochemical and histological assessments performed 24-48 h after exercise.…”

Section: Discussionsupporting

confidence: 84%

“…These findings are added to the superior strength gains observed in TLG, further supporting the use of LLLT before resistance training. Patrocinio et al (2013) and Ferraresi et al (2011) assessed adaptations to resistance training in animals and humans, respectively, and found greater responses in groups treated with LLLT after each training session. These findings suggest that muscle fibers' hypertrophy (Patrocinio et al 2013) and strength gain (Ferraresi et al 2011) in response to resistance training may be enhanced with phototherapy, and that other mechanisms than reduction in muscle fatigue are involved.…”

Section: Discussionmentioning

confidence: 99%

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Effect of low-level laser therapy on muscle adaptation to knee extensor eccentric training

et al. 2014

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Effect of low-level laser therapy on muscle adaptation to knee extensor eccentric training

et al. 2014

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“…41,42 Furthermore, similar laser intensities were used in previous studies regarding 808 nm laser therapies of skeletal muscles in rats in absence of any tissue damage. 43 Real controlled photo-thermal therapies of deep tumors (not located at surface) would require real time thermal …”

mentioning

confidence: 99%

Nd3+ doped LaF3 nanoparticles as self-monitored photo-thermal agents

Rocha

Kumar

Jacinto

et al. 2014

Applied Physics Letters

123

105

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In this work, we demonstrate how LaF 3 nanoparticles activated with large concentrations (up to 25%) of Nd 3þ ions can simultaneously operate as biologically compatible efficient nanoheaters and fluorescent nanothermometers under single beam (808 nm) infrared laser excitation. Nd 3þ :LaF 3 nanoparticles emerge as unique multifunctional agents that could constitute the first step towards the future development of advanced platforms capable of simultaneous deep tissue fluorescence bio-imaging and controlled photo-thermal therapies. V C 2014 AIP Publishing LLC.

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“…LLLT can also accelerate cellular metabolic processes and increase synthesis of ATP [8] with an anti-inflammatory effect (release of inflammatory mediators, stimulation of microcirculation, absorption of exudates, and interference in the synthesis of prostaglandins) [12,13]. Research corroborates the influence of LLLT in relation to the recruitment of muscle fibers and the torque peak, in addition to delaying development of muscle fatigue, which contributes to a greater musculoskeletal performance [6,[14][15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 83%

Effects of low-level laser therapy (LLLT 808 nm) on lower limb spastic muscle activity in chronic stroke patients

et al. 2016

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A cerebrovascular accident (CVA) may affect basic motor functions, including spasticity that may be present in the upper extremity and/or the lower extremity, post-stroke. Spasticity causes pain, muscle force reduction, and decreases the time to onset of muscle fatigue. Several therapeutic resources have been employed to treat CVA to promote functional recovery. The clinical use of low-level laser therapy (LLLT) for rehabilitation of muscular disorders has provided better muscle responses. Thus, the aim of this study was to evaluate the effect of the application of LLLT in spastic muscles in patients with spasticity post-CVA. A double-blind clinical trial was conducted with 15 volunteer stroke patients who presented with post-stroke spasticity. Both males and females were treated; the average age was 51.5 ± 11.8 years old; the participants entered the study ranging from 11 to 48 months post-stroke onset. The patients participated in three consecutive phases (control, placebo, and real LLLT), in which all tests of isometric endurance of their hemiparetic lower limb were performed. LLLT (diode laser, 100 mW 808 nm, beam spot area 0.0314 cm(2), 127.39 J/cm(2)/point, 40 s) was applied before isometric endurance. After the real LLLT intervention, we observed significant reduction in the visual analogue scale for pain intensity (p = 0.0038), increased time to onset of muscle fatigue (p = 0.0063), and increased torque peak (p = 0.0076), but no significant change in the root mean square (RMS) value (electric signal in the motor unit during contraction, as obtained with surface electromyography). Our results suggest that the application of LLLT may contribute to increased recruitment of muscle fibers and, hence, to increase the onset time of the spastic muscle fatigue, reducing pain intensity in stroke patients with spasticity, as has been observed in healthy subjects and athletes.

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Effect of Low-Level Laser Therapy (808 nm) in Skeletal Muscle After Resistance Exercise Training in Rats

Abstract: These results suggest that LLLT could be an effective therapeutic approach in increasing muscle performance during a resistance exercise protocol.

Cited by 21 publications

References 33 publications

Effect of low-level laser therapy on muscle adaptation to knee extensor eccentric training

Effect of low-level laser therapy on muscle adaptation to knee extensor eccentric training

Nd3+ doped LaF3 nanoparticles as self-monitored photo-thermal agents

Effects of low-level laser therapy (LLLT 808 nm) on lower limb spastic muscle activity in chronic stroke patients

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