Association between physical activity in daily life and pulmonary function in adult smokers

Abstract

Objective: To determine whether the level of physical activity in daily life (PADL) is associated with pulmonary function in adult smokers. Methods: We selected 62 adult smokers from among the participants of an epidemiological study conducted in the city of Santos, Brazil. The subjects underwent forced spirometry for pulmonary function assessment. The level of PADL was assessed by the International Physical Activity Questionnaire and triaxial accelerometry, the device being used for seven days. The minimum level of PADL, in terms of quantity and intensity, was defined as 150 min/week of moderate to vigorous physical activity. Correlations between the studied variables were tested with Pearson's or Spearman's correlation coefficient, depending on the distribution of the variables. We used linear multiple regression in order to analyze the influence of PADL on the spirometric variables. The level of significance was set at 5%. Results: Evaluating all predictors, corrected for confounding factors, and using pulmonary function data as outcome variables, we found no significant associations between physical inactivity, as determined by accelerometry, and spirometric indices. The values for FVC were lower among the participants with arterial hypertension, and FEV1/FVC ratios were lower among those with diabetes mellitus. Obese participants and those with dyslipidemia presented with lower values for FVC and FEV1. Conclusions: Our results suggest that there is no consistent association between physical inactivity and pulmonary function in adult smokers. Smoking history should be given special attention in COPD prevention strategies, as should cardiovascular and metabolic comorbidities.

Factors associated with daily life physical activity in patients with asthma

“…Bahmer reported that FEV 1 and peak expiratory flow were poor markers of physical activity in asthma patients, and they also found that reduced DL PA was associated with impulse oscillometric airway resistance and small airway dysfunction, which was not evaluated in our study. Interestingly, no consistent association has been found between active lifestyle/physical inactivity and pulmonary function (after adjustment for confounding factors) in healthy subjects, lung‐healthy adolescents, or adult smokers . In our study, the number of SPD was not associated with BMI, as previously reported for non‐obese individuals .…”

Association of physical activity with lung function in lung-healthy German adults: results from the KORA FF4 study

“…No causal relationships or long-term effects can be drawn from our cross-sectional analysis, but our results are in line with those from a longitudinal study observing that current smokers with moderate and high PA had a decreased decline in FEV 1 and FVC compared with smokers with low PA [ 36 ]; and as in our study, this association was not observed in never smokers. A study including only smokers did not find an association between the achievement of at least 150 min/week of MVPA and spirometric parameters [ 15 ]. However, observed differences may be related to diverse designs, population characteristics and definitions of being active [ 15 , 36 ].…”

“…In lung-healthy adolescents, no associations were found between accelerometer-based PA and a broad range of spirometric parameters [ 14 ]. In adults, results of a study among 62 smokers showed that lung function between inactive participants, defined as those who engaged in less than 150 min/week of moderate to vigorous PA (MVPA), and active ones did not differ [ 15 ]. Thus, the evidence is inconclusive.…”

Sağlik Profesyonelleri̇nde Si̇gara İçi̇ci̇li̇ği̇ İle Fi̇zi̇ksel Akti̇vi̇te Arasindaki̇ İli̇şki̇ni̇n İncelenmesi̇

“…In another study from Brazil, no correlation was found between pulmonary function and physical activity evaluated using an accelerometer in smoking adults. It was, however, emphasized that smoking history should be investigated thoroughly (13). In another study that observed the changes in smoking behaviors and related factors among smoking Australian young women for 10 years, the moderate and high physical activity levels were found to be positively correlated with being an ex-smoker.…”