Navegando por Assunto "Photobiomodulation"
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Item A Comprehensive Review on the Effects of Laser Photobiomodulation on Skeletal Muscle Fatigue in Spastic Patients(Hindawi Publishing Corporation) Stamborowski, Sadi Fernando; Lima, Fernanda Púpio Silva; Leonardo, Patrícia Sardinha; Lima, Mário OliveiraPeripheral muscle fatigue is a common experience in daily life. Every individual at some point in their life has realized the inability to maintain muscle contraction, a phenomenon known as fatigue. Interestingly, neurological patients with peripheral sequelae such as spastic muscle contraction are able to remain in a pattern of muscle contraction for prolonged periods. The effects of laser therapy are already recognized in muscle contraction to delay skeletal muscle fatigue, prolong physical activity, and reduce delayed onset muscle soreness. However, the effects of photobiomodulation on neurological patients with muscular spasticity are still not well established. The present literature review seeks to recognize articles about the application of laser irradiation, also known as photobiomodulation, to patients with muscle fatigue and/or spastic palsy. To perform a literature review, we used the systematic review methodology for the literature search. The following keywords were searched: (skeletal muscle fatigue) AND (spastic patients) AND (low-level laser therapy OR low intensity laser therapy OR low energy laser therapy OR LLLT OR LILT OR LELT OR infrared laser OR IR laser OR diode laser), and these were used for search on the following databases: PubMed, Embase, Web of Science, BIREME, Scopus, and SciELO. Besides that, a literature review concerning on muscle physiology, fatigue, and LLLT was made. No language filter was applied, and altogether, 689 papers were identified. A group of 3 physiotherapists and 01 pharmaceutical scientist performed the literature review, and every exclusion was confirmed by at least two reviewers. After inclusion and exclusion criteria, 128 studies were included in this review. Conclusion, the LLLT can contribute to the recovery of spastic patients and muscles in fatigue. However, the real effect of laser photobiomodulation on muscle spasticity remains to be established. Only a much reduced number of clinical trials have been performed with a small number of participants. There is a lack of clinical trials from different research groups that could help to understand and elucidate the effects of laser in prolonged muscle contraction in spastic palsy.Item Effects of photobiomodulation on pain, lactate and muscle performance (ROM, torque, and EMG parameters) of paretic upper limb in patients with post-stroke spastic hemiparesis: a randomized controlled clinical trial(Springer-Verlag London Ltd.) Neves, Marcele Florêncio das; Pinto, Ana Paula; Maegima, Letícia Tiemi; Lima, Fernanda Pupio Silva; Lopes‑Martins, Rodrigo Álvaro Brandão; Arisawa, Emília Angela Loschiavo; Lima, Mário OliveiraThe objective of the study was to investigate the impact of photobiomodulation (PBM) on the paretic upper limb in post-stroke patients with spastic hemiparesis and to understand the potential of PBM as a long-term non-invasive therapy for reducing the side effects caused by spasticity in the hemiparetic upper limb after a stroke. This is a double-blind randomized clinical trial constituted of 27 participants, being Control group (CG = 12 healthy individuals) and PBM group (PBMG = 15 post-stroke individuals). In the CG, the baseline blood lactate (BL) was evaluated, followed by the evaluation of the IC torque of the biceps and triceps muscles, with the isokinetic dynamometer associated with surface electromyography (EMG) and, subsequently, a new measurement of BL. The PBMG received 10 sessions of treatment with PBM (780 nm, Power: 100 mV, Power Density: 3.18 W/cm2, Energy: 4 J, Fluency: 127.4 J/cm2, Time: 40 s per point and 1.280 s total, Spot: 0.0314 cm2, 32 Points: 16 points (brachial biceps) and 16 points (brachial triceps) applied with contact at 90°, Total Energy: 64 J), which in the pre-treatment evaluation measured BL, the visual analogue scale (VAS) of pain; torque and EMG of the same muscles in the IC, subsequently, a new measurement of VAS and BL, and measurement of range of motion (ROM) during the reaching movement. At the conclusion of the ten sessions, all participants underwent a reassessment, wherein all tests originally administered during the initial evaluation were repeated. Subsequently, the data were analyzed using the Shapiro–Wilk normality test. For related data, the paired t-test was used for normal distributions and the Wilcoxon test for non-normal data. For unrelated data, the t test was used for normal distributions and the Mann–Whitney test for non-normal data. Muscle torque was higher for the CG, with a significant difference (CGxPBMG = p < 0.0001). There was no significant difference between the EMG values of the CG in relation to the Pre-PBM phase and with the Post-PBM phase of the PBMG (p > 0.05). On the other hand, there was a 38% reduction in pain reported by hemiparetic patients (p = 0.0127) and a decrease in BL in the PBMG. Post-PBM ROM increased by 46.1% in the elbow extension of the paretic limb. In conclusion, Photobiomodulation (PBM) demonstrated significant improvements in muscle performance, reducing fatigue and pain levels, and enhancing range of motion in post-stroke patients with spastic hemiparesis. These findings support the potential integration of PBM into rehabilitation protocols, but further research and clinical trials are needed to validate and expand upon these promising outcomes.Item Effects of photobiomodulation on the growth of intestinal bacteria(CDRR Editor) Supino, Carolina; Pacheco Soares, Cristina; Silva, Newton Soares daNecrotizing enterocolitis is an inflammatory bowel disease that occurs in newborns, more commonly in preterm infants. It is the leading cause of death from gastrointestinal diseases in neonates, and is characterized by the development of diffuse intestinal necrosis in premature infants subjected to stress. The high incidence and lack of effective treatment strategies suggest that new approaches to treating the disease are needed. It is in this context that the possibility of using photobiomodulation as a therapeutic modality arises. However, studies on the use of photobiomodulation in intestinal bacteria are scarce. To study the effect of photobiomodulation used in clinical parameters on the growth of bacteria commonly present in the newborn microbiota. Four strains of bacteria were chosen to be studied, two belonging to healthy intestinal microbiota, Lactobacillus acidophilus and Lactobacillus reuteri, and two pathogenic bacteria, Escherichia coli and Staphylococcus aureus. These bacteria were cultivated in planktonic growth and irradiated with LED at a wavelength of 660 nm and a power density of 0.025 W/cm , at fluences of 1, 5 and 10 J/cm . The evaluation of cell growth was performed through absorbance readings in the periods of 4h, 24h and 48h after irradiation. The growth of L. acidophilus, L. reuteri and S. aureus did not undergo biomodulation in any of the fluences. The growth of E. coli was stimulated at 1 J/cm2 when compared to the Control group, with statistical significance (p<0.005). In the other fluencies there was no biostimulation for the E. coli bacteria. The use of a wavelength of 660 nm in the fluences of 5 J/cm2 and 10 J/cm2 in the studied bacteria did not lead to a significant change in the growth rate.Item Evaluation of the effects of photobiomodulation (808 nm) on pain and quality of life of diabetic neuropathy patients(CDRR Editors) Leal, Milena Valdinéia da Silva; Lima, Mário Oliveira; Costa, Davidson Ribeiro; Nicolau, Renata Amadei; Ribeiro, Luana Aparecida Pilato; Costa, David Ribeiro; Carvallho, Teresa Marly Teles de; Silva, Kelson Nonato Gomes da; Pessoa, Diego Rodrigues; Arisawa, Emília Ângela Lo SchiavoDiabetic neuropathy (DN) is one of the main complications of diabetes mellitus (DM), responsible for a high morbimortality rate and burdening public health resources. Photobiomodulation has proven to be effective in relieving pain, reducing the inflammation, and improving vascularization. We report an evaluation of the effectiveness of photobiomodulation for the relief of pain and to improve the quality of life in patients with diabetic neuropathy. A total of 30 diabetic volunteers with DN were randomly divided into three groups: control, photobiomodulation (PBM), and placebo (P-PBM). Those in Group control were instructed to take diabetic neuropathy medication for 30 days. The PBM group received laser photobiomodulation treatment with the following protocol: three sessions per week for 30 days, totaling 12 applications (wavelength, 808 nm; energy density, 12 J/cm²). in the of following nerves: tibial medial plantar, own plantar digital, common plantar digital, superficial fibular, deep fibular, sciatic, saphenous, and common fibular. Patients in the P-PBM Group were submitted to the PBM protocol, but with the device switched off. Before and after applying the therapeutic protocols, all volunteers were subjected to pain evaluations. The results showed a statistically significant difference between the groups (p < 0.05). The PBM group confirmed an analgesic effect directly related to the use of the photobiomodulation, whilst the patients in group control and P-PBM, did not present significant results. The study demonstrated that laser photobiomodulation is effective in significantly reducing pain and improving the quality of life of patients with diabetic neuropathy.Item Intranasal photobiomodulation therapy for COVID-19-related olfactory dysfunction: A Brazilian multicenter case series(ELSEVIER) Soares, Luís Eduardo Silva; Guirado, Milena Miranda Goulart; Berlingieri, Giuseppina; Ramires, Marcia Christina Camargo Hernandes; Lyra, Luciana Aparecida de Oliveira P.; Teixeira, Inessa Solek; Oliveira, Patrícia Costa; Tateno, Ricardo Yudi; Palma, Luiz Felipe; Campos, LuanaOlfactory dysfunction is commonly seen in COVID-19 patients; however, little is known about the pathophysiology and management. The present study aimed to report a series of cases in which three protocols of intranasal photobiomodulation therapy (PBMT) were used for COVID-19-related olfactory dysfunction. Irrespective of the PBMT protocol, olfaction recovery was noted in all cases but with varying degrees of improvement. Although intranasal PBMT seems to be a promising therapeutic modality, more research is needed to better define effectiveness.Item Photobiomodulation applied in post-surgical female-to-male surgery: case report(Erciyes Üniversitesi) Arisawa, Emilia Angela Lo Schiavo; Martins, Rodrigo Álvaro Lopes; Martins, Patrícia Sardinha Leonardo Lopes; Meneguzzo, Daiane Thais; Arisawa, Ana Amélia Lo Schiavo; Gallagher, SidhbhPhotobiomodulation (PBM) is an emerging medical technology with therapeutic effects that reduce or inhibit inflammatory mediators and cytokines, decreasing pain and local edema. However, the number of papers reporting the application of PBM in the post-surgical period is still scarce. This case report aims to evaluate the action of PBM applied after bilateral mastectomy with free nipple grafts regarding collateral effects such as pain, edema and hematoma. Patients underwent breast surgery with free nipples grafts. PBM sessions were applied 5, 24, 48 and 72 hours after surgery using a diode laser Platinum 4 equipment with four wavelengths (650, 810, 915 and 980 nm). Total energy applied was 1080 Joules distributed in six minutes of laser application over lymph node areas and the suture region. Both patients (A and B) related pain relief after PBM sessions (5, 24, 48 and 72 hours) after surgery. Also nipple sensitivity and overflow of reddish-color were reduced after 72h. The application of PBM reduced pain intensity and nipples hypersensitivity, suggesting reduction of inflammatory process. The benefits reported in this study suggest the indication of this complementary therapy to cosmetic procedures for transgender people.Item Photobiomodulation assay of muscle cells C2C12 after irradiation with LED device(CDRR Editors) Lima, Elessandro Váguino de; Pacheco-Soares, Cristina; Silva, Newton Soares daIntroduction:One of the ways that have been observed to reduce musculoskeletal fatigue is the use of protocols for the application of light sources (photobiomodulation) such as low-intensity laser and LED (Light Emitting Diode). Work involving photobiomodulation has shown promising results in strength performance or reduction of muscle fatigue. At the cellular level,photobiomodulation can modulate fibroblasts proliferation, the fixation and synthesis of collagen and procollagen, promote angiogenesis and improving energy metabolism in mitochondria. Compared with laser devices, LED has several advantages, such as beingsmaller, lighter, lower cost, and easier for operation. Objective:The present work objective is to verify if irradiation with LED device (650 nm and 860 nm) in muscle cells C2C12 modify the viability, morphology and cytoskeleton components. Methodology:C2C12 cells line (ATCC CRL -1772) were cultured in 25 cm2bottles at 37ºC under 5% CO2in DMEM. The cells wereirradiated with the light-emitting diodes (LED) device, Sportllux Ultra that consists of 84 LEDs, each individual LED has 8 mW of power, emitting in 660±20 nm (42 LEDs) and 850±20 nm (42 LEDs), and covering anarea (A) of 120 cm2. The power density of delivered light was 5,6 mW/cm2, and the exposure time was 10 minutes, totalizing the fluence of 3,4 J/cm2. Viability assay was performed where the cells were incubated with 100 μL of Crystal Violet (CV) solution and mitochondrial activity assay was evaluated by the colorimetric MTT assay. Nucleus (DAPI) and Cytoskeleton (Rhodamine Phalloidin) fluorescence assay was performed to study the cytoskeleton based on the change in the actin filaments. Results:Our results demonstrate that the synergism of LED irradiation (660nm and 850nm) induced the proliferation of C2C12 cells. The light-emitting diode (LED) device, Sportllux Ultra has a significant effect on C2C12 cell culture. Mitochondrial activity and cell viability showed a significative increase in their activities after irradiation. The microscopy fluorescence observations showed an alignment of cytoskeletal components of C2C12 cells after irradiation.Conclusion:The application of irradiation with the Sportlux Ultra LED device stimulated an increase of energy by mitochondrial activity assay, number of cells by cell viability assay and alignment of cytoskeleton components by fluorescence assay in C2C12line cells. Our results suggest that organizated cytoskeletal actin filaments normally contribute to cell survival and that induced major cell changes in the cytoskeleton that result in cell shape change. These results suggest that the Sport Lux Ultra LEDdevice can help in the repair of tissue injuries and to collaborate to increase of performance in athletes in a faster wayItem 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.