Compared with a twice-weekly resistance training program, the combination of once-weekly resistance and once-weekly endurance training not only produced similar gains in maximal strength, 6MWT performance, and quality of life but also produced improvements in muscle power and endurance performance. These findings may have implications for the prescription of resistance and endurance exercise for patients with chronic obstructive pulmonary disease.

A transbronchial lung cryobiopsy using a flexible cryoprobe has a good diagnostic yield and might be an alternative to consider in cases of diffuse ILD in which a histologic sample is required for diagnosis. This technique could avoid a large number of surgical biopsies.

The purpose of this study was to determine the potential relationship between muscle power of the lower extremities and the physical activity in older men with chronic obstructive pulmonary disease (COPD). Forty-four men (70.3 ± 6.7 years old) with moderate-to-severe COPD completed the 6-min walk test (6MWT), BODE (body mass index, obstruction, dyspnea, and exercise), a one-repetition maximum strength of the quadriceps femoris (1RM), and muscle power at 50% and 70% 1RM. Physical activity was measured using an accelerometer. The 6MWT was associated with muscle power at 50% 1RM (r = .40; P = .013) but not muscle power at 70% 1RM (r = .24; P = .15) or 1RM (r = .13; P = .44). Light-intensity activity was positively correlated with muscle power at 50% 1RM (r = .52; P = .001). Lower limb muscle power is associated with the 6MWT and light-intensity activities in older men with COPD.

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RESUMENLos trabajadores sanitarios están expuestos a múl-tiples enfermedades infecciosas que padecen los pacientes a los que atienden y que han sido reconocidas como enfermedades infecciosas ocupacionales. Las declaradas con más frecuencia son las adquiridas por vía hematógena, en especial la hepatitis por virus B. Existen múltiples enfermedades infecciosas trasmitidas por vía aérea y hasta el advenimiento del síndrome respiratorio agudo severo ocasionado por un coronavirus, la tuberculosis era una de las más temidas. En el presente trabajo analizaremos las causas por las que la tuberculosis se considera una enfermedad ocupacional en el personal sanitario, cuáles son las actividades con más riesgo y las medidas que deben adoptarse para disminuir la transmisión nosocomial.

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IC/TLC≤25% is associated with reduced maximal strength and peak power output of the lower extremities. IC/TLC≤25% may have an important clinical relevance as an index to determine peripheral muscle dysfunction.