Physical training associated with blood flow restriction increased cephalic vein diameters in both groups and was effective in increasing the diameter of the radial artery; however, it did not demonstrate superiority over the exercise group protocol without blood flow restriction.

Background and purpose Chronic obstructive pulmonary disease (COPD) is a systemic inflammatory disease that can cause repercussions on respiratory muscles and body composition. The aim of the current study was to evaluate inspiratory muscle strength, diaphragmatic mobility, and body composition in COPD subjects and to correlate these variables. Methods This was a cross‐sectional study performed with 21 COPD patients. Inspiratory muscle strength (manovacuometry), pulmonary function test (forced vital capacity [FVC], forced expiratory volume in 1 s [FEV1], and FEV1/FVC ratio), diaphragmatic mobility (ultrasonography), and body composition (bioelectrical impedance analysis) were examined. Results COPD individuals in Stages II (28.9%), III (52%), and IV (19%) according to Global Initiative for Chronic Obstructive Disease were recruited, 61.9% of which were men. Inspiratory muscle weakness was found in 47.6% of subjects, who presented a lower fat‐free mass percentage (p = 0.017) and smaller fat‐free mass index (p = 0.001) and greater fat mass percentage (p = 0.029) and less diaphragmatic mobility (p = 0.007) compared with the nonrespiratory weakness group. Maximal inspiratory pressure exhibited a moderately positive relationship to the fat‐free mass index (r = 0.767, p < 0.001) and a weak positive relationship to diaphragmatic mobility (r = 0.496, p = 0.022). Conclusion Our study showed a high prevalence of inspiratory muscle weakness based on the severity of airway obstruction and on the presence of muscular depletion. The evaluation of body composition detected important changes. It also demonstrated that not only muscular weakness was present in these patients but also this had repercussions on the mobility of the diaphragm muscle.

Background: This study aimed to evaluate the relationship between quadriceps muscle thickness and functional performance on the 60s sit-to-stand test (60s-STS), the six-minute walk test (6MWT), and handgrip strength in non-dialytic stage 4 and 5 chronic kidney disease (CKD) patients. Methods: This was a cross-sectional study that evaluated 40 CKD patients aged between 30-70 years. Participants were submitted to an assessment that included quadriceps muscle thickness evaluated by a portable ultrasound. Functional performance tests included the 60s-STS, distance walked in the 6MWT, and handgrip strength. Also, body composition evaluated using electrical bioimpedance analysis and physical activity level through the short version of International Physical Activity were measured. Multiple linear regression was used to investigate the relationship between the quadriceps thickness and functional performance. Results: Quadriceps muscle thickness was correlated to 60s-STS (R2 = 43.6%; 95% CI = 0.022 - 0.665; β = 0.34; p = 0.037). Also, a moderate correlation between this muscle thickness and appendicular skeletal muscle (ALM) was found in CKD patients (r = 0.603, p <0.001). No relationship was found between quadriceps muscle thickness with the 6MWT and handgrip strength. Conclusion: Quadriceps muscle thickness is associated to 60s-STS, thus our results demonstrate the repercussions of the disease on the musculoskeletal system.

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Introdução: As anormalidades ósseas em doentes renais crônicos tornam-nos mais propensos a fraturas que a população geral, além da exposição a eventos clínicos relacionados à queda, que podem interferir na qualidade de vida. Objetivo: Avaliar o risco de quedas e qualidade de vida em doentes renais crônicos com distúrbio mineral e ósseo. Métodos: Estudo transversal, envolvendo 50 pacientes classificados em dois grupos: baixa remodelação (n=20) e alta remodelação (n=30). Foram registrados dados sociodemográficos e clínicos, avaliado o risco de quedas (Escala Internacional de Eficácia de Quedas) e a qualidade de vida (Medical Outcomes Study SF-36). Resultados: A prevalência de risco de quedas entre os pacientes de baixa e de alta remodelação foi 65% e 50% respectivamente, além de um maior comprometimento do estado geral de saúde, avaliado pelo SF-36, nos dois grupos. Conclusão: Foi observado risco elevado de quedas com maior comprometimento dos aspectos físicos relacionados à qualidade de vida.