RESUMO
BACKGROUND: Lung volume reduction surgery (LVRS) is a treatment option for selected patients with severe chronic obstructive pulmonary disease (COPD) and emphysema. The positive effects of LVRS on exercise capacity are well known. In contrast, the effect of LVRS on daily physical activity (PA) is less clear. METHODS: In a prospective case-control study we evaluated selected patients with severe COPD and emphysema who underwent LVRS and COPD patients following usual care. Controls were matched for age, severity of airflow obstruction (FEV1) and hyperinflation [residual volume to total lung capacity (RV/TLC)]. Treatment effect of LVRS on activity parameters was analysed using univariable regression model adjusting for treatment group. RESULTS: A total of 19 patients underwent LVRS and 16 COPD patients without a surgical intervention during the study period were included. The median (quartile) FEV1%pred was 28% (range, 21-33%), RV/TLC was 69% (range, 64-73%) in cases while controls had a median (quartile) FEV1%pred of 33% (range, 28.5-49.5%) and a RV/TLC of 58% (range, 49-61%). Age and body mass index (BMI) were comparable between both groups. Number of steps per day following LVRS was comparable to before the intervention (mean change: -115, 95% CI: -994.6 to 764.3, P=0.779) and was not significantly different to the change in control subjects (mean treatment effect: 931.4, 95% CI: -252.4 to 2,115.1, P=0.117). CONCLUSIONS: The results from this study reveal that patients undergoing LVRS did not increase their daily level of PA despite improvement of exercise capacity and symptoms.
RESUMO
Se estudiaron 4 varones y 5 hembras del equipo cubano de patinaje velocidad para estimar su estado nutricional, GE y establecer recomendaciones nutricionales. U n microciclo tipo de las etapas de preparación general (G) y especial (E) constituyó el marco de medición. El GE se determinó mediante método factorial. Se realizó estadística inferencial para considerar diferencias entre variables por sexo y etapas para p ≤ 0,05. Para calcular las recomendaciones nutricionales se estimó el NAF. Se observaron características morfológicas similares a las reportadas en patinadores colombianos, así como un IMC adecuado. El GE por entrenamiento fue significativamente diferente en las dos etapas y el GET fue superior en la de PG. Energéticamente, se observó tendencia a valores superiores en los hombres en todos los indicadores, excepto para las actividades discrecionales durante la etapa de PE y el NAF de ambas y las recomendaciones dependieron de la etapa de preparación de estos patinadores.
Four and five female and male speed roller skaters of Cuban team were studied for nutritional status and energy cost estimation even as energy recommendations. A microcycle type of general (G) and special (S) training phases was the frame for measuring. EC was determined by factorial method. Inferential statistics for estimating differences between variables by sex and phases of training was for p ≤ 0,05. In order to make energy recommendations a PAL was also estimated. Morphological characteristics were similar to those reported in Colombian roller skaters and BMI was adequate. Sport training energy cost was significantly different in both phases and TEC was higher in G. It was observed that male skaters showed a trend to have higher values for all variables with the exception of discretionary activities in S and PAL for both phases. Energy recommendations depended on training phase of speed roller skaters.
