Navegando por Assunto "muscle strength dynamometer"

Agora exibindo 1 - 2 de 2

Acesso aberto (Open Access)
Avaliação da força muscular isocinética em mulheres no pós operátorio de câncer de mama
(Universidade Federal do Pará, 2025-01-16) BRANDÃO, Rayane de Nazaré Monteiro; CARNEIRO, Raul Rassy; http://lattes.cnpq.br/9162153771863939; https://orcid.org/0000-0002-6825-0239
Breast cancer (BC) is a neoplasm that develops from the interaction between genetic mutations and epigenetic factors and has a significant impact on the physical and emotional health of patients. Surgical treatment, including mastectomy and breast-conserving surgery, can result in changes in muscle function, particularly in the upper limbs, affecting the quality of life (QoL) of female survivors. Analyzing muscle strength in post-BC surgery patients using isokinetic dynamometry to assess movements of the shoulder on the operated (ipsilateral) and non- operated (contralateral) sides is extremely important. This cross-sectional, observational study was conducted with 37 women who had undergone oncological breast surgery. Muscle strength was assessed using isokinetic dynamometry, considering shoulder flexion, extension, internal rotation, and external rotation movements at a speed of 60°/s. Statistical analysis was performed using STATA 18.0 software, with t-tests and Kruskal-Wallis tests to compare peak torque (PT) and total work (TW) indices between limbs. The results indicated that, overall, there were no significant differences between the involved and uninvolved limbs for flexion, extension, internal rotation, and external rotation movements, in terms of both total work and peak torque. Internal rotation showed a trend toward difference but did not reach statistical significance. No statistically significant differences in muscle strength were observed between the limbs involved and not involved in surgery. However, radical mastectomy was associated with higher peak torque in all movements, especially in external rotation, indicating that the type of surgery may impact muscle strength. The analysis also revealed that shoulder flexion strength was related to better QoL, although fatigue did not show a significant correlation. Post-surgical rehabilitation should take these differences in muscle function and the impacts of surgery into account, aiming to optimize recovery and improve patients' quality of life.
Acesso aberto (Open Access)
Força de preensão manual e funcionalidade em pessoas atingidas pela hanseníase, seus contatos intradimiciliares e escolares de área endêmica: Correlação com biomarcador molecular e sorológico de infecção pelo Mycobacterium leprae
(Universidade Federal do Pará, 2023-04-26) CONDE, Renatto Castro; BARRETO, Josafá Gonçalves; http://lattes.cnpq.br/1894551542259862
Leprosy can cause significant physical disabilities if not early diagnosed and treated. The diagnosis is essentially clinical, through dermatoneurological examination, including a subjective and low sensitivity manual muscle strength test. Household contacts of untreated patients are most at risk of developing the disease. Early diagnosis is essential for breaking the chain of transmission and preventing disability. In this context, the use of dynamometry provides objective data on handgrip strength through a simple and cost-effective clinical test, and with functional tests, could contribute to an early detection of peripheral nerve disorders. The aim of this study is to correlate handgrip strength and functionality data with biomarkers of Mycobacterium leprae infection among people affected by leprosy, their household contacts, and schoolchildren in endemic areas. The study was approved (report 5384136) and carried out in Imperatriz (MA), São Luís (MA) and Marituba (PA). Subjects diagnosed with leprosy, their household contacts and school contacts <15 years old were clinically examined and have biological samples collected for the detection of IgM-anti-PGL-I antibodies and for the molecular detection of M. leprae by means of RT-PCR. Strength was measured using a handheld dynamometer, while we used a scale and functional tests to assess functionality. A total of 179 subjects were included in the study, 94 females (52.51%), 67 cases of leprosy (28 new cases and 10 index cases) and 60 healthy household contacts (36.5 ±14.69 years) and 52 healthy schoolchildren from an endemic region. We found a significant prevalence of loss of muscle weakness (p=0.0003) in leprosy cases compared to healthy individuals. Healthy male subjects >15 years old had significantly higher mean values of grip strength and pinch strength (p<0.05) compared to male leprosy cases, except for the pulp pinch. Leprosy cases > 15 years old showed significant functional losses (p<0.05), evaluated by TFMJT and 9-PnB and a longer test time, when compared to the healthy group, mainly women. It was observed that leprosy cases had significantly more activity limitations when assessed on the SALSA scale (p<0.05). Subjects with changes in nerve palpation and decreased tactile sensitivity showed significantly more muscle weakness and functional loss (p<0.05). We found an inversely proportional correlation between anti-PGL-I IgM titers and muscle grip strength and pinch strength in individuals over 15 years of age (p<0.05). While muscle weakness was observed in most RT-PCR positive cases. Of the positive individuals for RT-PCR, 42.31% presented functional loss in the tests, showing a significantly longer time in the TFMJT (p=0.028). Those positive for RT-PCR presented significantly greater times in the block stacking (p=0.046) and feeding simulation (p=0.025) subtests. We observed muscle weakness in 28.75% and loss of function in 33.33% of subjects double positive for anti-PGL-I and RT-PCR. Therefore, these data show us that there may be motor and functional impairment in this population that is more vulnerable to the development of leprosy, where these tests can find disabilities, in addition to those of the traditional clinical evaluation.