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URI permanente desta comunidadehttps://repositorioacademico.universidadebrasil.edu.br/handle/123456789/30
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3 resultados
Resultados da Pesquisa
Item Efeitos da fotobiomodulação no desempenho esportivo de paratletas de natação - uma série de casos(Universidade Brasil, 2020) Garcez, Aguinaldo Silva; Baptista, AlessandraPhotobiomodulation (PBM) uses light, usually from a laser or LED, to stimulate, heal and / or regenerate damaged tissues. Recently, it has been used to increase sports performance in athletes. The aim of this study was to demonstrate the effects of PBM on cardiorespiratory function and swimming performance in parathletes. Ten young adult parathletes, men and women, swimmers of the AACD team, São Paulo - Brazil, were tested before and after the PBM applied to the upper musculature. They are diagnosed with cerebral palsy, myelomeningocele and congenital malformation. Before the test, they performed a 10 min swim warm-up in a 50 m pool. They rested for 1 min and their heart rate was recorded. Parathletes performed 3 swimming sessions, in freestyle, with maximum effort, with an interval of 5 min between each series and the average performance time was recorded. After a recovery period of one week, the upper muscles: biceps, deltoid and trapezius were irradiated, bilaterally, for 10 min, with a set of LEDs, each area receiving 108 J. After every 50 m of swimming, performance time, peak heart rate and recovery after 1 min were recorded. Comparisons were made before, after irradiation with PBM and after placebo, in a crossover design. All the parathletes improved the time in the 50 m swim. On average, the time decreased about 4 s after PBM and about 1.5 s after placebo. The peak heart rate was 10% lower after irradiation, when compared to non irradiated placebo. The recovery heart rate was also better for all athletes. The results suggest that a muscle preconditioning regime, using PBM with low-power infrared laser, before intense exercise can modulate the function of the upper musculature and the recovery of heart rate, leading to a better swimming performance in young adult parathletes.Item Fotobiomodulação como ferramenta auxiliar na hidratação cutânea(Universidade Brasil, 2023) Foguel, Cicelina Campos; Nunez, Silvia CristinaCutaneous dehydration is one of the changes caused by aging that has a high frequency. Although not considered a dysfunction in itself, xerosis can cause discomfort due to the visual and sensory appearance of the skin. The use of photonic techniques such as photobiomodulation (PBM) using LASER or LED has shown numerous benefits for skin healingr. The present study verified the ability of FBM to improve skin hydration associated with a cosmetic treatment protocol for cutaneous xerosis. The experimental model consisted of 3 sessions of cutaneous hydration performed in 60 volunteers, randomly divided into 2 groups, being the Experimental group where the hydration protocol will be associated with the application of red LED (660 nm, 3 J punctual application on the entire face) in each session of treatment and the control group that received the same hydration protocol and placebo LED irradiation. The results were evaluated by cutaneous bioimpedance on the first day and one week after the last day of treatment, and the appearance of the skin was evaluated by evaluators blinded to the treatment protocol used. The data obtained were statistically compared. We observed with this study that there is a role for the use of PBM in the process of reversal of cutaneous xerosis, we identified an improvement in the amount of water in the skin without changing the amount of oil. PBM can be used in the treatment of patients who show signs of skin dehydration, senile xerosis, who are looking for a safe, non-invasive technique with no side effects, as well as patients who have contraindications to the use of other therapies available in the aesthetic market. Emphasizing that it is a very useful tool for hydration of oily biotype skins, since it increased the water gradient and there was no change in the percentage of oil.Item Avaliação da fototerapia com diferentes comprimentos de onda no tratamento da Alopécia androgenética(Universidade Brasil, 2024) SILVA, Leandro Ferreira da; BAPTISTA, AlessandraAndrogenetic alopecia (AGA) is a hair dysfunction that promotes the transformation of terminal hairs into vellus hairs and consequent baldness. Phototherapy (FT) uses light, usually laser or LED, to stimulate, heal and/or regenerate damaged tissues and has been identified as a safe and promising resource for the treatment of AGA. The purpose of this study is to compare different wavelengths in the treatment of AGA. 10 volunteers were selected, randomly divided into 2 groups: Red Light Group (GLV, n=5) and Blue Light Group (GLA, n=5). The groups received point irradiation (4J/point), respectively, with the Venus equipment (MMOptics, São Carlos, Brazil), GLV (l= 660nm, P= 100 mW, for 40 s) and GLA (l= 440 nm, P = 150 mW, for 26.6 s). The interventions were carried out once a week, for 90 days, totaling 12 treatment sessions. The emergence of new hairs was analyzed by comparing the photographic record before any intervention (T1) and at the end of treatment (T2). The relationship between vellus threads and terminal threads was analyzed by trichoscopy with polarized light, before and at the end of treatment. A specific quality of life assessment questionnaire for androgenetic alopecia (Women's Androgenetic Alopecia Quality of Life Questionnaire -WAA-QoL) before and after the end of the interventions. The results showed that both red light and blue light, in the parameters tested in this study, led to an increase in the number of terminal strands after treatment (p< 0.05), which allowed a reduction in the central parting of the treated hair. The evaluation of the WAA-QoL questionnaire showed a lower percentage of responses with a higher degree of dissatisfaction after both treatments. Therefore, we can conclude that the use of phototherapy is an effective therapeutic resource in the treatment of AGA with red or blue light, in the parameters tested in this study.