Interventions that included ET and PA counseling during PR were effective strategies to improve PA in COPD
BACKGROUND Physical inactivity is associated with poor outcomes in COPD , and as a result , interventions to improve physical activity ( PA ) are a current research focus .
However , many trials have been small and inconclusive .
OBJECTIVE The aim of this systematic review and meta- analysis was to study the effects of r and omized controlled trials ( RCTs ) targeting PA in COPD .
An Internet-Mediated Pedometer-Based Program Improves Health-Related Quality-of-Life Domains and Daily Step Counts in COPD: A Randomized Controlled Trial.
BACKGROUND Low levels of physical activity ( PA ) are associated with poor outcomes in people with COPD . Interventions to increase PA could improve outcomes . METHODS We tested the efficacy of a novel Internet-mediated , pedometer-based exercise intervention .  Veterans with COPD ( N = 239 ) were r and omized in a 2:1 ratio to the ( 1 ) intervention group ( Omron HJ-720 ITC pedometer and Internet-mediated program ) or ( 2 ) wait-list control group ( pedometer ) . The primary outcome was health-related quality of life ( HRQL ) , assessed by the St. George 's Respiratory Question naire ( SGRQ ) , at 4 months . We examined the SGRQ total score ( SGRQ-TS ) and three domain scores : Symptoms , Activities , and Impact . The secondary outcome was daily step counts . Linear regression models assessed the effect of intervention on outcomes . RESULTS Participants had a mean age of 67 ± 9 years , and 94 % were men . There was no significant between-group difference in mean 4-month SGRQ-TS ( 2.3 units , P = .14 ) . Nevertheless , a significantly greater proportion of intervention participants than control subjects had at least a 4-unit improvement in SGRQ-TS , the minimum clinical ly important difference ( 53 % vs 39 % , respectively , P = .05 ) . For domain scores , the intervention group had a lower ( reflecting better HRQL ) mean than the control group by 4.6 units for Symptoms ( P = .046 ) and by 3.3 units for Impact ( P = .049 ) . There was no significant difference in Activities score between the two groups . Compared with the control subjects , intervention participants walked 779 more steps per day at 4 months ( P = .005 ) . CONCLUSIONS An Internet-mediated , pedometer-based walking program can improve domains of HRQL and daily step counts at 4 months in people with COPD . TRIAL REGISTRY Clinical Trials.gov ; No. : NCT01102777 ; URL : www . clinical trials.gov
Interventions that included ET and PA counseling during PR were effective strategies to improve PA in COPD
BACKGROUND Physical inactivity is associated with poor outcomes in COPD , and as a result , interventions to improve physical activity ( PA ) are a current research focus .
However , many trials have been small and inconclusive .
OBJECTIVE The aim of this systematic review and meta- analysis was to study the effects of r and omized controlled trials ( RCTs ) targeting PA in COPD .