Exercise training undertaken by people within 12 months of lung resection for non-small cell lung cancer

Decreased exercise capacity and impairments in health-related quality of life (HRQoL) are common in people following lung resection for non-small cell lung cancer (NSCLC). Exercise training has been demonstrated to confer gains in exercise capacity and HRQoL for people with a range of chronic conditions, including chronic obstructive pulmonary disease and heart failure, as well as in people with cancers such as prostate and breast cancer. A programme of exercise training for people following lung resection for NSCLC may confer important gains in these outcomes. To date, evidence of its efficacy in this population is unclear. The primary aim of this study was to determine the effects of exercise training on exercise capacity in people following lung resection(with or without chemotherapy) for NSCLC. The secondary aims were to determine the effects on other outcomes such as HRQoL,lung function (forced expiratory volume in one second (FEV1)), peripheral muscle force, dyspnoea and fatigue as well as feelings of anxiety and depression. We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2013, Issue 2 of 12), MEDLINE(via PubMed) (1966 to February 2013), EMBASE (via Ovid) (1974 to February 2013), SciELO (The Scientific Electronic Library Online) (1978 to February 2013) as well as PEDro (Physiotherapy Evidence Database) (1980 to February 2013). We included randomised controlled trials (RCTs) in which study participants withNSCLC, who had recently undergone lung resection,were allocated to receive either exercise training or no exercise training. Two review authors screened the studies and identified those for inclusion. Meta-analyses were performed using post-intervention datafor those studies in which no differences were reported between the exercise and control group either: (i) prior to lung resection, or(ii) following lung resection but prior to the commencement of the intervention period. Although two studies reported measures of quadriceps force on completion of the intervention period, meta-analysis was not performed on this outcome as one of the two studies demonstrated significant differences between the exercise and control group at baseline (following lung resection). We identified three RCTs involving 178 participants. Three out of the seven domains included in the Cochrane Collaboration' s 'seven evidence-based domains' table were identical in their assessment across the three studies (random sequence generat