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 .
Influence of Lightweight Ambulatory Oxygen on Oxygen Use and Activity Patterns of COPD Patients Receiving Long-Term Oxygen Therapy
Abstract Lightweight ambulatory oxygen devices are provided on the assumptions that they enhance compliance and increase activity , but data to support these assumptions are lacking . We studied 22 patients with severe chronic obstructive pulmonary disease receiving long-term oxygen therapy ( 14 men , average age = 66.9 y , FEV1 = 33.6%pred , PaO2 at rest = 51.7 torr ) who were using E-cylinders as their portable oxygen . Subjects were recruited at 5 sites and studied over a 2-week baseline period and for 6 months after r and omizing them to either continuing to use 22-lb E-cylinders towed on a cart or to carrying 3.6-lb aluminum cylinders . Utilizing novel electronic devices , ambulatory and stationary oxygen use was monitored continuously over the 2 weeks prior to and the 6 months following r and omization . Subjects wore tri-axial accelerometers to monitor physical activity during waking hours for 2–3 weeks prior to , and at 3 and 6 months after , r and omization . Seventeen subjects completed the study . At baseline , subjects used 17.2 hours of stationary and 2.5 hours of ambulatory oxygen daily . At 6 months , ambulatory oxygen use was 1.4 ± 1.0 hrs in those r and omized to E-cylinders and 1.9 ± 2.4 hrs in those using lightweight oxygen ( P = NS ) . Activity monitoring revealed low activity levels prior to r and omization and no significant increase over time in either group . In this group of severe chronic obstructive pulmonary disease patients , providing lightweight ambulatory oxygen did not increase either oxygen use or activity . Future efforts might focus on strategies to encourage oxygen use and enhance activity in this patient group . This trial is registered at Clinical Trials.gov ( NCT003257540 )
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 .