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Item The influence of photobiomodulation on the temperature of the brachial biceps during muscle fatigue protocol(Springer Nature Link) Stamborowski, Sadi Fernando; Spinelli, Bruna Moreira de Oliveira; Lima, Fernanda Pupio Silva; Costa, Davidson Ribeiro; Souza, Gabriela Aparecida da Silveira; Lima, Mario Oliveira; Martins, Rodrigo Alvaro Brandão LopesPhysical activity raises body temperature. However, the literature does not contain studies about whether the employment of hotobiomodulation (PMB) could significantly influence body temperature during a muscle fatigue (MF) protocol. Thus, the aim of this study was to evaluate the effects of PMB on the temperature of the biceps brachii muscle during the performance of a muscle fatigue protocol. The study consisted of 14 volunteers who were divided into two groups (placebo group and laser group) and all individuals rotated into all groups (crossover study). To induce muscle fatigue, three maximum voluntary isometric contractions (MVIC) were performed for 50 s with a 50-s interval. During the MVIC, the muscle strength was assessed using surface electromyography and infrared temperature at 0, 5, 10, and 15 min after the tests. The laser group presented a less accentuated decrease in muscle strength, evidencing a lower rate of muscle fatigue (p > 0.05) in relation to the other groups. In the temperature analysis, the control group exhibited the highest average temperature, with a significant difference only for the placebo. The results indicate that the control displayed the greatest physical degeneration and the PMB group had a positive effect on MF attenuation and body thermoregulation.Item Kinematic and sensory-motor analysis of the effects of treatments with photobiomodulation in rats with experimentally induced spinal injury(Springer Nature Link) Beloni, Luís Filipe Karatanasov; Lima, Leonardo Borges de; Correia, Débora Campos Chaves; Mendes, Alessandro Corrêa; Sannt'Anna, Luciana Barros; Arisawa, Emilia Angela Lo Schiavo; Lima, Fernanda Pupio Silva; Lima, Mario OliveiraThe aim of this study was to evaluate the kinematic and sensorimotor parameters after application of photobiomodula- tion (PBM) in rats with experimentally induced spinal cord injuries (SCI). The animals were randomly divided into 3 experimental groups containing 5 animals each and respecting the following arrangement: C (control, simulation of sur- gical procedures); I (injury, induction of SCI) and PBM (photobiomodulation, SCI+application of photobiomodulation therapy). All animals underwent movement tests after 3, 7, 10 and 14 days, respectively, after the surgical procedure, and the following movement parameters were evaluated: mean velocity (MV), ground reaction force (GRF) and sciatic func- tional index (SFI) using integrated equipment capable of digitally collecting the proposed data. The mean results of the MV data obtained by groups C, I and PBM were compared and a statistically significant difference was found, being: C x I (p=0.001) and I x PBM (p=0.002), respectively. Considering the SFI data obtained by groups C, I and PBM, a statisti- cally significant difference was observed when comparing C x I (p = 0.011). The mean results of the GRF data obtained by groups C, I and PBM were compared and the results showed a statistically significant difference in C x I (p=0.001), C x PBM (p=0.026) and I x PBM (p=0.002), respectively. Therefore, there was an improvement in motor function between the 7th and 14th day after SCI, represented by the increase in speed and better GRF distribution in the PBM group.Item Histological analysis of Spinal Cord Injury treated with Amniotic Membrane(Universidade de São Paulo) Correia, Débora Campos Chaves; Lima, Leonardo Borges de; Sant'Anna, Luciana Barros; Lima, Mario Oliveira; Arisawa, Emilia Angela Lo SchiavoSpinal cord injury (SCI) is one of the most harmful syndromes that affects humans due to neuronal destruction and interruption of the nerve impulse transmission between axons. The conduction of motor, sensory, and autonomic responses below the level of the injury is seriously compromised, generating high treatment costs for the health system and a reduction in quality of life, stimulating research into new treatment protocols. This study aimed to evaluate the effectiveness of a biomaterial, the amniotic membrane (AM), to treat experimentally induced SCI. 15 adult rats were divided into three groups (n = 5): S (Sham), L (SCI without treatment), and AM (SCI treated with AM). Spinal cord injury was induced in the region T9-T10 by direct trauma, free-falling a weight (10 g, 2 mm flat edge) held on a mini guillotine, 25 mm above the exposed spinal cord. A fragment of AM, obtained from the human placenta after maternal consent, was applied to the injured area only in the AM group. After 28 days, specimens from the area of spinal cord injury were excised and subjected to routine histological procedures. Data from the semi-quantitative score, obtained from a scheme that assigned different scores to regions of the spinal cord, and from the quantitative analysis were subjected to parametric statistical analysis. Results showed that Group S presented medullary tissue without changes (score 0). In contrast, Group L presented numerous areas of cavitation in the dorsal and lateral regions of the white and gray matter (9.61 ± 6.60 p<0.001) with an intense inflammatory infiltrate. The AM group exhibited small areas of cavitation in the dorsal and lateral regions of the white matter and part of the dorsal columns in the gray matter (0.94 ± 1,03, p<0.001), with few inflammatory cells. The results suggest the effectiveness of AM in the treatment of induced SCI, characterized by a reduction in the evolution of inflammatory and degenerative processes in the central nervous tissue compared to the untreated group.Item Robotic rehabilitation in clinical complications after breast cancer: exoskeleton of upper limbs(Universidade de São Paulo) Mendes, Izabela dos Santos; Oliveira, Fabio Henrique Monteiro; Souza, Gabriela Aparecida de; Sene, Thaisa Prado; Lima, Fernanda Pupio Silva; Andrade, Adriano de Oliveira; Lima, Mario OliveiraBackground: Breast cancer promotes several physical and functional changes. Innovative tech- niques of physiotherapeutic treatment, such as robotic rehabilitation may contribute to the pre- vention or treatment of these complications. Here we aim to evaluate the effects of robotic re- habilitation on clinical complications secondary to breast cancer. Methods: This is a longitudinal clinical study consisting of 26 subjects divided into the following groups: 13 patients (women after breast cancer - G1, Robotic Rehabilitation Group) and 13 healthy women who did not undergo surgery due to breast cancer and constituted the GC (Control Group) to obtain data from elec- tromyography and dynamometry. Ten consecutive therapeutic sessions were performed. The fol- lowing parameters were evaluated in three sessions (session 1 - S1, session 5 - S5 and session 10 - S10): scapular and manual force, myoelectric activity, pain, range of motion, lymphedema and quality of life. Results: Pain threshold attenuation was obtained by comparing S5 with S10 (p = 0.002) and at the end of treatment (p = 0.01); lymphedema reduction after 10 sessions (p = 0.04); increase of abduction ROM when comparing S1 with S10 (p = 0.05); flexion (p = 0.002) in S1 in relation to S10 and shoulder extension (p = 0.05) in S5. Regarding the electromyographic analysis, there were increases in scapular and manual force of the GC versus G1, and changes in variables estimated from the collected signals, especially the increase in signal amplitude for the MAV, PEAK and RMS characteristics of the brachial biceps muscles, anterior and middle del- toid when comparing S1 versus S10. Before the evaluation using the dynamometer, the healthy women presented increase of scapular and manual force in relation to the volunteers after breast cancer. Conclusion: The use of robotic therapy was significantly efficient for pain attenuation, lymphedema, increase range of motion, increased recruitment of muscle fibers and improvement of muscle synergism, which contributed to the improvement of the quality of life.