RT Journal Article
SR Electronic
T1 Effects of cigarette smoking intensity on functional capacity of active smokers
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP P1334
VO 42
IS Suppl 57
A1 Rafaella Xavier
A1 Dionei Ramos
A1 Fernanda Rodrigues
A1 Juliana Ito
A1 Giovana Bertolini
A1 Bruna Spolador
A1 Alessandra Toledo
A1 Ercy Ramos
YR 2013
UL http://erj.ersjournals.com/content/42/Suppl_57/P1334.abstract
AB Smokers have increased airflow resistence and reduced exercise tolerance. Aim: To evaluate the effects of smoking intensity on functional capacity of active smokers. Methods: 54 smokers were divided into light (LS) (1-10 cigarettes/day (c/d); n=10), moderate (MS) (11-20 c/d; n=12) and heavy smokers (HS) (³21 c/d; n=32). The smoking behaviour, pulmonary function, and functional capacity (six minutes walk test - 6MWT) were evaluated. The heart rate (HR), peripheral oxygen saturation (SpO2) and systolic (SBP) and diastolic (DBP) blood pressure were evaluated before, immediately and two minutes after recovery the 6MWT. An age-matched non smoker (NS) group (n=13) was also assessed. Comparisons between groups were conducted by Kruskal-Wallis, followed by Dunn’s. For comparison among 6MWT variables, numerical deltas (Δ) were calculated for the HR, SpO2, SBP and DBP Results: MS and HS walked less than NS in 6MWT (P=0,001). HS had lower FEV1 than NS (P=0,003). Furthermore, the HR of NS increased more immediately after 6MWT (P<0,0001) and two minutes after the 6MWT (P<0,0001). The SBP increased more in HS compared to NS after the 6MWT (P=0,005).View this table:Numerical deltas between moments.Conclusion: MS and HS had lower functional capacity than NS and smoking had a bad hemodynamic repercussion in the 6MWT.