Laser auriculotherapy associated with cupping therapy in chronic spinal pain: Randomized controlled clinical trial.

BACKGROUND: Musculoskeletal spine disorders are common causes of chronic pain and impair functionality. Laser auriculotherapy and cupping has played a significant role in the treatment of chronic pain. OBJECTIVE: to evaluate the effect of laser auriculotherapy associated with cupping at systemic acupuncture points on chronic spinal pain. METHODS: Randomized controlled clinical trial. Volunteers underwent three evaluations: an initial evaluation, a final evaluation immediately after the last intervention session, and a 15-day follow-up. The pain was identified using the numeric pain scale. The pain threshold was also evaluated against mechanical stimulation using a Digital Dynamometer at specific points in the cervical, thoracic and lumbar regions. Fifty individuals with chronic spinal pain, randomized into groups: experimental (n = 25), submitted to 10 sessions of auriculotherapy with laser and cupping therapy and control (n = 25). RESULTS: The experimental group achieved pain intensity reduction between pre and post and follow-up moments (p < 0.0001), of greatest pain in the last seven days among all moments (p < 0.0001), of least pain in the pre with post moment (p = 0.006) and follow-up (p = 0.002), and an increased pain threshold between pre and post (p = 0.023). The control group achieved a reduction in the nociceptive threshold between pre and post (p = 0.001) and follow-up (p < 0.0001). The experimental group showed reduced pain intensity (p = 0.027) and greater pain (p = 0.005) after intervention and in pain intensity (p = 0.018), greater (p < 0.0001) and less pain (p = 0.025) at follow-up, compared to the control group. CONCLUSION: Auriculotherapy with laser associated with cupping therapy may effectively reduce pain intensity and increase the nociceptive threshold.

Effect of kinesio-taping on the acute phase of the post-operative reconstruction of the anterior cruciate ligament: A randomized controlled trial.

OBJECTIVES: Evaluate the Kinesio taping (KT) effects on reducing pain and edema on postoperative (PO) after anterior cruciate ligament (ACL) reconstruction. DESIGN: Controlled and randomized clinical study. SETTINGS: Individuals of both sexes, aged 18-45, underwent ACL reconstruction were randomized into intervention (IG; n = 19) and control (CG; n = 19) groups. METHODS: Intervention consisted of KT bandage applications at hospital discharge for seven days, and on the 7th PO day, which was removed on the 14th PO. CG received specific instructions from the physiotherapy service. All volunteers were evaluations before and immediately after surgery, on the 7th and 14th PO day. Pain threshold (KgF), evaluated by algometer; edema (cm), evaluated by the perimetry measurements and volume of the lower limbs and the truncated cone test (ml) were the evaluated variables. The Student's t-test and Mann-Whitney U test were used to evaluate intergroup, analysis of variance (ANOVA) and Dunnett's test to evaluate intragroup. RESULTS: Edema reduction and increased nociceptive threshold were significant in the 7th (p < 0.001; p = 0.003) and 14th (p < 0.001; p = 0.006) PO day in IG when compared to CG patients. IG perimetry levels, on the 7th and 14th PO were similar to preoperative period (p = 0.229; p = 1.000). IG nociceptive threshold value was similar on the 14th PO to before the surgery (p = 0.987). The same pattern did not occur in CG. CONCLUSION: KT treatment reduced edema and increased nociceptive threshold in the 7th and 14th PO ACL reconstruction.

The respiratory effects of a Pilates method protocol: Randomized clinical trial.

OBJECTIVES: To evaluate the respiratory effects of a Pilates method (PM) protocol in adult women. DESIGN: Single-blind randomized controlled trial. SETTINGS: Healthy women were randomized into two groups using the Random.org online tool: a Pilates group (PG) (n = 33) and a control group (CG) (n = 29). PARTICIPANTS: Sixty-two healthy women, aged 18-44 years, sedentary or irregularly active B (as defined by the international physical activity questionnaire [IPAQ]). The intervention consisted of 16 sessions of PM. protocol twice a week for the PG. The CG without intervention. MAIN OUTCOMES MEASURES: The variables evaluated were maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), peak expiratory flow (PEF), tidal volume (TV), respiratory frequency (RF), minute volume (MV), and slow vital capacity (SVC). RESULTS: The results showed significant evidence of the beneficial respiratory effects of the PM protocol when the PG was compared with the CG: increased MIP (p = 0.001), and a significant increase in TV (p = 0,047). CONCLUSION: The PM protocol used in this study may be effective for respiratory muscle strength because it improved MIP and TV. CLINICAL TRIAL REGISTRATION: https://ensaiosclinicos.gov.br/rg/RBR-5b6wc3.

Effects of low-power laser auriculotherapy on chronic spinal pain: Randomized clinical trial.

AIMS AND OBJECTIVES: To evaluate the effect of laser auriculotherapy on chronic spinal pain. It is a randomized controlled clinical trial. METHODS: Volunteers with chronic spinal pain underwent three evaluations: an initial evaluation, a final evaluation immediately after the last intervention session, and a 15-day follow-up. Pain intensity, nociceptive threshold in relation to mechanical stimulus, and degree of pain (the greatest and least pain) in the last seven days were the assessed variables. The experimental group (EG, n = 24) underwent 10 sessions of laser auriculotherapy twice a week, while the control group (CG, n = 23) did not receive any intervention. RESULTS: The EG showed great clinical improvement in relation to the variable pain intensity between pre- and post-interventions (65.2%) and pre-intervention and follow-up (58.62%) compared to the CG. There was a significant increase in the nociceptive threshold for the EG. In contrast, the CG showed a significant reduction in the nociceptive threshold. The intergroup analysis indicated an improvement in pain intensity for the EG (0.006). This result remained at the follow-up (0.012). The nociceptive threshold increased over time for the EG (0.016). In contrast, the CG showed a reduction in this variable with a significant difference over time (<0.001). CONCLUSION: The results of this clinical trial suggest that the proposed intervention may be effective in reducing pain intensity and increasing the nociceptive threshold. The effect of the intervention remained 15 days after the end of the treatment, when the volunteers were re-evaluated.

Role of Auriculotherapy in the Treatment of Temporomandibular Disorders with Anxiety in University Students.

Introduction. The aim of this study was to evaluate the role of auriculotherapy with mustard seeds in the treatment of temporomandibular disorders (TMDs), anxiety, and electromyographic (EMG) activity in university students. Methodology. The State Trait Anxiety Inventory (STAI), Research Diagnostic Criteria (RDC) for TMDs (RDC/TMDs), and electromyography were used in this study of 44 college students with high levels of anxiety and TMDs. The subjects were divided into two groups: an auriculotherapy (AA) group (n = 31) and an AA sham group (n = 13). The mustard seeds were applied to the shenmen, rim, sympathetic, brain stem, and temporomandibular joint (TMJ) points in the AA group and to sham points in the external ear and wrist in the AA sham group. The treatment protocol was 10 sessions (two treatments per week). Results. Anxiety (p < 0.01) was significantly reduced in the AA group. This group also showed a decrease in tender points in the mandibular posterior region (p = 0.04) and in the right side of the submandibular region (p = 0.02). Complaints of bilateral pain were reduced in the temporal tendon (p ≤ 0.01) and in the left side of the ATM (p < 0.01). In addition, electromyographic (EMG) activity was reduced during temporal muscle contraction (p = 0.03). Conclusion. Auriculotherapy was effective in the treatment of students with anxiety and TMDs.

Foot reflexology in feet impairment of people with type 2 diabetes mellitus: randomized trial.

OBJECTIVE: to evaluate the effect of foot reflexology on feet impairment of people with type 2 diabetes mellitus. METHOD: this is a randomized, controlled and blind clinical trial. The sample was comprised by people with type 2 diabetes mellitus who, after being randomized into Treated group (n = 21) and Control group (n = 24), received guidelines on foot self-care. To the Treated Group it was also provided 12 sessions of foot reflexology. The scores of impairment indicators related to skin and hair, blood circulation, tissue sensitivity and temperature were measured by means of the instrument for assessing tissue integrity of the feet of people with diabetes mellitus. Chi-square test, Fisher exact test, Mann-Whitney test and regression analyzes were applied to the data, considering a significance level of 5% (P value <0.05). RESULTS: participants who received the therapy showed better scores in some impairment indicators related to skin and hair (hair growth, elasticity/turgor, hydration, perspiration, texture and integrity of the skin/ skin peeling). CONCLUSION: the foot reflexology had a beneficial effect on feet impairment of people with type 2 diabetes mellitus, which makes it a viable therapy, deserving investment. This study was registered in the Brazilian Registry of Clinical Trials - RBR-8zk8sz.

Anxiety and spirituality in university students: a cross-sectional study.

OBJECTIVE: to study anxiety and spirituality and the relationship between them in university students. METHOD: the State-Trait-Anxiety Inventory (STAI) and Pinto and Pais-Ribeiro Spirituality Scales were used for data collection. RESULTS: six hundred and sixty-nine students participated in the study, of whom 91.5% had moderate and high levels of trait anxiety and 92.9% of state anxiety; 93.8% had high spirituality scores. The multiple linear regression test showed a significant relationship between anxiety and the presence of physical discomfort, unusual body movements, and the need for treatment. Furthermore, higher levels of anxiety were associated with the female gender, the lack of leisure activities, and low levels of optimism in the spirituality scale. CONCLUSION: it is important to develop strategies for coping with anxiety, which in turn can be oriented toward protective factors such as spirituality.

Foot reflexology in feet impairment of people with type 2 diabetes mellitus: randomized trial / Reflexologia podal no comprometimento dos pés de pessoas com diabetes mellitus tipo 2: ensaio randomizado / Reflexología podal en el comprometimiento de los pies de personas con diabetes mellitus tipo 2: ensayo aleatorio

AbstractObjective: to evaluate the effect of foot reflexology on feet impairment of people with type 2 diabetes mellitus.Method: this is a randomized, controlled and blind clinical trial. The sample was comprised by people with type 2 diabetes mellitus who, after being randomized into Treated group (n = 21) and Control group (n = 24), received guidelines on foot self-care. To the Treated Group it was also provided 12 sessions of foot reflexology. The scores of impairment indicators related to skin and hair, blood circulation, tissue sensitivity and temperature were measured by means of the instrument for assessing tissue integrity of the feet of people with diabetes mellitus. Chi-square test, Fisher exact test, Mann-Whitney test and regression analyzes were applied to the data, considering a significance level of 5% (P value <0.05).Results: participants who received the therapy showed better scores in some impairment indicators related to skin and hair (hair growth, elasticity/turgor, hydration, perspiration, texture and integrity of the skin/ skin peeling).Conclusion: the foot reflexology had a beneficial effect on feet impairment of people with type 2 diabetes mellitus, which makes it a viable therapy, deserving investment. This study was registered in the Brazilian Registry of Clinical Trials - RBR-8zk8sz.

ResumoObjetivo:avaliar o efeito da reflexologia podal no comprometimento dos pés de pessoas com diabetes mellitus tipo 2.Método:trata-se de um ensaio clínico, randomizado, controlado e mascarado. A amostra foi composta por pessoas com diabetes mellitus tipo 2 que, após serem randomizadas em grupo Tratado (n=21) e Controle (n=24), receberam orientações de autocuidado com os pés. Ao Grupo Tratado também foram fornecidas 12 sessões de reflexologia podal. Foram mensurados os escores de comprometimento de indicadores relacionados à pele e pelos, circulação sanguínea, sensibilidade e temperatura tissular por meio do Instrumento para avaliação da integridade tissular dos pés de pessoas com diabetes mellitus. Aos dados foram aplicados os testes Qui-Quadrado, Exato de Fisher, Mann-Whitney e Análises de regressão, considerando-se nível de significância de 5% (Valor P<0,05).Resultados:os participantes que receberam a terapia apresentaram melhores escores de comprometimento em alguns indicadores relacionados à pele e pelos (crescimento de pelos, elasticidade/tugor, hidratação, transpiração, textura e integridade da pele/descamação cutânea).Conclusão:a reflexologia podal apresentou efeito benéfico sobre o comprometimento dos pés de pessoas com diabetes mellitus tipo 2, o que a torna uma terapia viável e que merece investimento. Este estudo foi registrado no Registro Brasileiro de Ensaios Clínicos - RBR-8zk8sz.

ResumenObjetivo:evaluar el efecto de la reflexología podal en el comprometimiento de los pies de personas con diabetes mellitus tipo 2.Método:se trata de un ensayo clínico, aleatorio, controlado y enmascarado. La muestra estuvo compuesta por personas con diabetes mellitus tipo 2 que, después de ser tratadas aleatoriamente en los grupos Tratado (n=21) y Control (n=24), recibieron orientaciones de autocuidado de los pies. También, al Grupo Tratado se le suministraron 12 sesiones de reflexología podal. Fueron medidos los puntajes de comprometimiento de indicadores relacionados a la piel y pelos, circulación sanguínea, sensibilidad y temperatura tisular por medio de instrumento para evaluación de la integridad del tejido de los pies de personas con diabetes mellitus. Los datos fueron sometidos a las pruebas Chi-cuadrado, Exacta de Fisher, Mann-Whitney y Análisis de regresión, considerando un nivel de significación de 5% (Valor p<0,05).Resultados:los participantes que recibieron la terapia presentaron mejores puntajes de comprometimiento en algunos indicadores relacionados a la piel y pelos (crecimiento de pelos, elasticidad/turgencia, hidratación, transpiración, textura e integridad de la piel/descamación cutánea).Conclusión:la reflexología podal presentó efecto benéfico sobre el comprometimiento de los pies de personas con diabetes mellitus tipo 2, lo que la torna una terapia viable y que merece inversiones. Este estudio fue registrado en el Registro Brasileño de Ensayos Clínicos - RBR-8zk8sz.

Efeitos do resfriamento e aquecimento articular no desempenho funcional do ombro / Effects of cooling and heating on shoulder functional performance / Efectos del enfriamiento y del calentamiento articular del hombro en el desempeño funcional

INTRODUÇÃO: Um dos recursos mais utilizados na reabilitação de lesões musculoesqueléticas é a termoterapia por subtração de calor (crioterapia), enquanto a termoterapia por adição de calor é considerada o procedimento mais antigo de reabilitação física. Entretanto, há poucas evidências que tenham investigado os efeitos desses recursos sobre o desempenho de membros superiores. OBJETIVO: Comparar o efeito do resfriamento e do aquecimento articular sobre o desempenho funcional do membro superior. MÉTODOS: Trinta e quatro voluntários (22,23 ± 2,17 anos; 22,39 ± 2,53 kg/m2), de ambos os sexos, foram divididos aleatoriamente em um dos três grupos: 1) grupo crioterapia GCR (n=10): submetidos ao resfriamento articular por compressas frias; 2) grupo termoterapia - GTE (n=10): submetidos ao aquecimento articular por ondas curtas e 3) grupo controle - GCO (n=14), não submetidos a qualquer intervenção. Os voluntários foram avaliados, pré e pós-intervenção, quanto ao desempenho funcional de membros superiores por meio dos testes de estabilidade da extremidade superior em cadeia cinética fechada (TEESCCF) e das condições de equilíbrio em apoio bimanual sobre o baropodômetro. Ainda, os voluntários foram avaliados quanto ao desempenho funcional virtual por meio do jogo Mario Kart (Nintendo Wii (r) ). RESULTADOS: Houve melhora significativa nos valores pós-intervenção no TEESCCF para o GCR (p<0,001), GTE (p=0,002) e GCO (p=0,01). Não houve alteração significativa na área de deslocamento do centro de pressão na condição de olhos abertos, nos três grupos (p>0,05). Entretanto, na condição de olhos fechados, houve piora de desempenho para GTE (p=0,04) e melhora de desempenho para o GCO (p=0,02). Não houve alteração significativa no desempenho funcional virtual para os três grupos (p>0,05). CONCLUSÃO: Embora não tenha favorecido o desempenho funcional em todos os testes reais e virtuais utilizados, o resfriamento articular foi mais efetivo que o ...

INTRODUCTION: Thermotherapy by heat subtraction or cryotherapy is one of the most used resources in the physical rehabilitation whereas thermotherapy by addition of heat is considered as the oldest procedure in physical rehabilitation. However, there are few evidences regarding the effects of these physical agents on the performance of upper limbs. OBJECTIVE: To compare the effect of joint cooling and joint heating on functional performance of the upper limb. METHODS: Thirty-four subjects (22.23 ± 2.17 years old; 22.39 ± 2.53 kg/m2) of both genders were randomly assigned to one of the following three groups: 1) subjects who were submitted to joint cooling with cold compresses - CRG (n=10); 2) subjects who were submitted to joint heating by shortwave thermotherapy - THG (n=10) and 3) subjects who were not submitted to any intervention - control group - COG (n=14). Upper limb performance was assessed pre- and post-intervention by the closed kinetic chain upper extremity stability test (CKCUEST). Balance conditions were assessed in upper limb supporting on a pressure platform. Virtual performance was evaluated by Mario Kart Wii game (Nintendo Wii(r)). RESULTS: There was significant improvement in post intervention measurements in CKCUEST for both CRG (p<0.001), THG (p=0.002) and COG (p=0.01). There were no significant changes in the center of pressure area displacement with opened eyes in the three groups (p> 0.05). However, in the closed eyes condition, there was a worsened performance for THG (p=0.04) and improved performance for COG (p=0.02). No significant changes in virtual performance were observed for the three groups (p>0.05). CONCLUSION: Joint cooling was more effective than joint heating to maintain the upper limb muscle performance, especially in upper limb balance with closed eyes although it did not favor functional performance in all real and virtual tests. .

INTRODUCCIÓN: Uno de los recursos más utilizados en la rehabilitación de lesiones musculoesqueléticas es la termoterapia por sustracción de calor (crioterapia), mientras que la termoterapia por agregado de calor es considerada como el procedimiento más antiguo de la rehabilitación física. Entretanto, hay pocas evidencias de que se hayan investigado los efectos de esos recursos sobre el desempeño de miembros superiores. OBJETIVO: Comparar el efecto del enfriamiento y del calentamiento articular sobre el desempeño funcional del miembro superior. MÉTODOS: Treinta y cuatro voluntarios (22,23 ± 2,17 años; 22,39 ± 2,53 kg/m2), de ambos sexos, fueron divididos randómicamente a uno de los tres grupos: 1) grupo crioterapia GCR (n = 10) sometidos al enfriamiento articular por compresas frías; 2) grupo termoterapia - GTE (n = 10) sometidos al calentamiento articular por ondas cortas y 3) grupo control - GCO (n = 14), no sometidos a ninguna intervención. Los voluntarios fueron evaluados antes y después de la intervención, cuanto al desempeño funcional de los miembros superiores a través de los tests de estabilidad de la extremidad superior en cadena cinética cerrada (TEESCCF) y de las condiciones de equilibrio en apoyo bimanual en un baropodómetro. Además, los voluntarios fueron evaluados cuanto al desempeño funcional virtual a través del juego Mario Kart (Nintendo Wii(r)). RESULTADOS: Hubo mejora significativa en los valores post-intervención en TEESCCF para GCR (p <0,001), GTE (p = 0,002) y GCO (p = 0,01). No hubo alteración significativa en el área de desplazamiento del centro de presión en la condición de ojos abiertos, en los tres grupos (p> 0,05). Entretanto, en la condición de ojos cerrados, empeoró el desempeño de GTE (p = 0,04) y mejora en el desempeño funcional para el GCO (p = 0,02). No hubo alteración significativa en el desempeño funcional virtual para los tres grupos (p> 0,05). CONCLUSIÓN: A pesar de que no se haya favorecido ...

Ansiedade e espiritualidade em estudantes universitários: um estudo transversal / Ansiedad y espiritualidad en estudiantes universitarios: un estudio transversal / Anxiety and spirituality in university students: a cross-sectional study

RESUMOObjetivo:investigar a ansiedade e a espiritualidade de estudantes universitários e a relação entre elas.Método:para a coleta de dados, foi utilizado o Inventário de ansiedade traço-estado (IDATE) e a Escala de Espiritualidade de Pinto e Pais-Ribeiro.Resultados:participaram 609 alunos, sendo que 91,5% apresentam níveis moderados e altos de ansiedade-traço; 92,9%, os mesmos níveis de ansiedade-estado e 93,8% alto escore de espiritualidade. O teste de regressão linear múltipla apontou relação signifi cativa entre a ansiedade e a presença de desconfortos físicos, de movimentos pouco comuns e necessidade de tratamento. Os maiores níveis de ansiedade estiveram associados ao sexo feminino, à ausência de atividades de lazer e aos baixos níveis de otimismo da escala de espiritualidade.Conclusão:é importante o desenvolvimento de estratégias de enfrentamento da ansiedade que, por sua vez, podem estar voltadas a fatores protetores, como a espiritualidade.

RESUMENObjetivo:identificar la ansiedad y espiritualidad de los estudiantes universitarios, y investigar la relación entre ellas.Método:para la colección de datos se utilizó el Inventario de Ansiedad Estado-Trazo y la escala de espiritualidad de Pinto y Pais-Ribeiro.Resultados:participaron del estudio 609 estudiantes y 91,5% tienen niveles moderados y altos de ansiedad trazo y estado de ansiedad del 92,9%, y 93,8% tenía una puntuación alta de la espiritualidad. La prueba de regresión lineal múltiple indica una relación signifi cativa entre la ansiedad y la presencia de molestias físicas, movimientos inusuales y de la necesidad de llevar a cabo el tratamiento. Sin embargo, los niveles más altos de ansiedad se asociaron con el sexo femenino, la falta de práctica de láser y los niveles bajos de la escala dimensión optimismo de la espiritualidad.Conclusión:es importante desarrollar estrategias para hacer frente a la ansiedad que a su vez pueden estar orientados hacia los factores de protección, como la espiritualidad.

ABSTRACTObjective:to study anxiety and spirituality and the relationship between them in university students.Method:the State-Trait-Anxiety Inventory (STAI) and Pinto and Pais-Ribeiro Spirituality Scales were used for data collection.Results:six hundred and sixty-nine students participated in the study, of whom 91.5% had moderate and high levels of trait anxiety and 92.9% of state anxiety; 93.8% had high spirituality scores. The multiple linear regression test showed a signifi cant relationship between anxiety and the presence of physical discomfort, unusual body movements, and the need for treatment. Furthermore, higher levels of anxiety were associated with the female gender, the lack of leisure activities, and low levels of optimism in the spirituality scale.Conclusion:it is important to develop strategies for coping with anxiety, which in turn can be oriented toward protective factors such as spirituality.

Análise biomecânica e histológica de músculos gastrocnêmios de ratas submetidas à lesão muscular e tratados com laserterapia de baixa intensidade / Biomechanical and histological analysis of the gastrocnemius in rats subjected to muscle injury and treatment with low-level laser therapy

OBJETIVO: Avaliar, mecânica e histologicamente, a aplicação do laser terapêutico de baixa potência, no processo reparativo de lesões provocadas por impacto em músculos gastrocnêmios de ratas. MÉTODOS: 45 ratas Wistar foram divididas em três grupos (n=15/grupo): C (controle, sem lesão), LM (lesão muscular) e LM-L (lesão muscular e laserterapia). A lesão muscular experimental foi produzida pela queda de uma carga de 250 g, de uma altura de 30cm, diretamente sobre o músculo. Os animais do grupo LM-L foram submetidos à aplicação de laser 960nm, 2J/cm², durante três dias, duas aplicações por dia, no local da lesão. Foi realizado ensaio mecânico na máquina universal de ensaio Emic®. RESULTADOS: As médias dos valores de força máxima foram: (35,70 ± 2,69) N no grupo C, (31,77 ± 2,59) N no grupo LM e (34,36 ± 3,63) N no grupo LM-L, com diferença estatística significativa nos grupos C e LM (p < 0,05). As médias dos valores de rigidez relativa foram (3,75 ± 0,98) N/mm no grupo C, (3,84 ± 0,32) N/mm no grupo LM e (4,43 ± 0,68) N/mm no grupo LM-L, sem diferença estatística (p > 0,05). A análise histológica evidenciou presença de vasos sanguíneos no grupo LM-L e hematomas em processo de reparação. CONCLUSÃO: A laserterapia influencia de forma positiva no processo de regeneração da lesão muscular.

OBJETIVE: To evaluate, by means of biomechanical and histological analysis, the effect of low-level laser therapy on the gastrocnemius of rats subjected to muscle lesion by impact. METHODS: 45 female Wistar rats, weighing 250g, were divided into 3 groups (n=15/group): C (control), ML (animals submitted to muscle lesion) and ML-L (animals submitted to muscle lesion and laser therapy). The animals from groups ML and ML-L were subjected to an experimental muscle lesion by means of an impact of a 250g load, released from a height of 30 cm, directly on the gastrocnemius. The animals from group ML-L were submitted to a treatment with a 960 Nm laser, 2 J/cm², for 3 days, twice a day. RESULTS: The mechanical tests were performed on the Universal Testing Machine. The average values of maximum force were: 35.70 (± 2.69) N in group C, 31.77 (± 2.59) N in group ML and 34.36 (± 3.63) N in group ML-L, with a statistically significant difference between groups C and ML (p < 0.05). The average values of stiffness were: 3.75 (± 0.98) N/mm in group C, 3.84 (± 0.32) N/mm in group ML and 4.43 (± 0.68) N/mm in group ML-L, with no statistically significant differences (p>0.05). Histological analysis showed a presence of blood vessels in group ML-L and a hematoma in the healing stage. CONCLUSION: Treatment with low-level laser had a positive effect in the healing process of muscle injury.

Efeitos da aplicação do laser de baixa potência na regeneração do nervo isquiático de ratos / Effects of low-power laser on injured rat sciatic nerve regeneration

Os nervos periféricos sofrem constantes lesões de origem traumática, o que resulta em perdas funcionais. A terapia com laser de baixa potência vem sendo utilizada para minimizar os efeitos maléficos da inflamação e acelerar o processo de cicatrização dos tecidos lesados. Este estudo teve como objetivo verificar o efeito da irradiação do laser 830 nm no comportamento do nervo isquiático de ratos submetido a esmagamento. Foram utilizados 20 ratos, todos tendo tido o nervo isquiático esmagado, divididos em 4 grupos (n=5): P7 e P14, tratamento placebo por 7 e 14 dias; L7 e L14, tratamento por laser (dosagem de 4 J/cm²) por 7 e 14 dias. Os animais dos grupos P7 e P14 foram submetidos aos mesmos procedimentos, mas com o laser desligado. Os parâmetros analisados foram presença de infiltrado inflamatório e fibroblastos, destruição da bainha de mielina e degeneração axonal. Na análise estatística foi observada diferença estatística com relação a três parâmetros: os animais do grupo L14 apresentaram maior quantidade de fibroblastos (p=0,0001), menor degeneração da bainha de mielina (p=0,007) e menor quantidade de infiltrado inflamatório (p=0,001). A aplicação do laser de baixa potência contribuiu para a redução do processo inflamatório decorrente da lesão do nervo isquiático de ratos...

Peripheral nerves are commonly subject to traumatic injuries, leading to functional loss. Low-power laser therapy has been used in order to minimize harmful effects of inflammation and to accelerate healing of injured tissues. The purpose of this study was to assess the effect of 830 nm-laser irradiation on rat sciatic nerves submitted to crush. Twenty male Wistar rats had their sciatic nerve crushed and were divided into 4 groups (n=5): Sham7 and Sham14, placebo-treated for 7 and 14 days; L7 and L14, laser-treated (at 4 J/cm²) for 7 and 14 days. Sham group animals were submitted to the same procedures, but with the laser turned off. Assessed parameters were inflammatory infiltrates, fibroblasts, myelin sheath destruction, and axonal degeneration. The statistical analysis showed significant differences in three parameters: L14 animals showed more fibroblasts (p=0.0001), lesser myelin sheath degeneration (p=0.007), and lesser inflammatory infiltrates (p=0.001). Low-power laser therapy hence contributed to reduce the inflammatory process due to rat sciatic nerve injury...

Propriedades mecânicas do gastrocnêmio eletroestimulado pós-imobilização / Mechanical properties of gastrocnemius eletrostimulated after immobilization

INTRODUÇÃO: As propriedades mecânicas (PM) consistem num instrumento de aplicabilidade clínica para profissionais de saúde que atuam no sistema músculo-esquelético. OBJETIVOS: Avaliar dois protocolos de estimulação elétrica neuromuscular (NMES) na potencialização do restabelecimento das PM no complexo músculo-tendíneo após imobilização segmentar de ratas. MATERIAIS E MÉTODOS: Foram utilizados 50 animais distribuídos em: Controle (GC, n=10); Imobilizado (GI, n=10); Imobilizado e remobilizado livre (GIL, n=10), Imobilizado e NMES uma vez ao dia (GIE1, n=10) e Imobilizado e NMES duas vezes ao dia (GIE2, n=10). A imobilização foi realizada por 14 dias. O GIL foi liberado posteriormente por 10 dias. A NMES foi aplicada pós-imobilização por 10 dias, GIE1 aplicado pela manhã (10 minutos) e, GIE2 aplicado pela manhã e à tarde (totalizando 20 minutos). Posteriormente, o músculo gastrocnêmio foi submetido ao ensaio mecânico de tração sendo as PM de rigidez, resiliência, carga e o alongamento no limite máximo avaliadas. RESULTADOS: A imobilização reduziu os valores das propriedades de carga e rigidez (p<0,05). A NMES utilizada duas vezes ao dia determinou resultados menos satisfatórios das PM avaliadas que àqueles obtidos uma vez ao dia e no grupo remobilizado (p>0,05). CONCLUSÃO: O músculo gastrocnênio tornou-se estruturalmente mais organizado frente à aplicação unitária da NMES e na remobilização.

INTRODUCTION: Mechanical properties (MP) are clinically applicable tools for healthcare professionals working on the musculoskeletal system. OBJECTIVES: The aim of this study was to evaluate two protocols of neuromuscular electric stimulation (NMES) to improve MP regeneration of the myotendinous complex after segment immobilization in female rats. MATERIALS AND METHODS: Fifty animals were equally distributed into five groups: Control (CG, n=10); Immobilized (IG, n=10); Immobilized and freely remobilized (IFG, n=10); Immobilized and NMES once /day (IEG1, n=10); Immobilized and MNES twice/day (IEG2, n=10). Immobilization was kept for 14 days, and remobilization was subsequently released for 10 days. NMES was applied for 10 days, post-immobilization, every morning for 10 minutes to IEG1 animals and every morning and afternoon (total 20 minutes) to the IEG2 group. After these procedures, the gastrocnemius muscle was submitted to the mechanical traction assay to evaluate stiffness, resilience, load and stretching at maximum limit MPs. RESULTS: Immobilization reduced the MP values concerning load and stiffness (p<0.05). Results for NMES applied twice a day were less satisfactory than the ones obtained with one application or in the remobilized group (p> 0.05). CONCLUSION: It is concluded that the gastrocnemius muscle became structurally better organized through a single NMES application and by remobilization.