F Ribeiro1, N L Oliveira2, G Silva3, L Campos4, F Miranda4, M Teixeira5, A J Alves6, J Oliveira2. 1. School of Health Sciences and Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal. Electronic address: fernando.ribeiro@ua.pt. 2. Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal. 3. Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal; Department of Sport, Higher Institute of Educational Sciences of Douro (ISCE Douro), Portugal. 4. Physical Medicine and Rehabilitation Department, Centro Hospitalar de Gaia/Espinho, Vila Nova de Gaia, Portugal. 5. Cardiology Department, Centro Hospitalar de Gaia/Espinho, Vila Nova de Gaia, Portugal. 6. ISMAI - University Institute of Maia, Castêlo da Maia, Portugal.
Abstract
OBJECTIVE: To assess the effects of an exercise-based cardiac rehabilitation programme on daily physical activity levels of patients following myocardial infarction. DESIGN: Subanalysis of two randomised, prospective controlled trials. SETTING:Outpatient clinic of a secondary hospital. PARTICIPANTS: Fifty consecutive patients randomised to the exercise group {n=25; 23 males; mean age 54 [standard deviation (SD) 9] years} or the control group [n=25; 20 males; mean age 58 (SD 9) years]. INTERVENTIONS: The exercise group participated in an 8-week aerobic exercise programme plus usual medical care and follow-up. The control group received usual medical care and follow-up. MAIN OUTCOME MEASURES: The primary outcome measure was change in time spent undertaking moderate-to-vigorous physical activity per day, assessed by accelerometer over 7 consecutive days. Secondary outcome measures were cardiorespiratory fitness, body mass, and resting blood pressure and heart rate. RESULTS:Moderate-to-vigorous physical activity levels increased significantly in the exercise group [43.2 (SD 36.3) to 53.5 (SD 31.9) minutes/day, P=0.030], and remained unchanged in the control group [40.8 (SD 26.2) to 36.8 (SD 26.5) minutes/day, P=0.241] from baseline to the end of the programme. Cardiorespiratory fitness increased significantly in the exercise group (mean difference 2.8; 95% of the difference 1.3 to 4.4ml/kg/minute, P=0.001) after the 8-week programme. CONCLUSIONS: In patients under optimal medication following myocardial infarction, participation in an 8-week exercise-based cardiac rehabilitation programme was found to improve physical activity levels consistent with health-related benefits. Future studies are needed to determine whether the increase in physical activity is maintained in the long term.
RCT Entities:
OBJECTIVE: To assess the effects of an exercise-based cardiac rehabilitation programme on daily physical activity levels of patients following myocardial infarction. DESIGN: Subanalysis of two randomised, prospective controlled trials. SETTING:Outpatient clinic of a secondary hospital. PARTICIPANTS: Fifty consecutive patients randomised to the exercise group {n=25; 23 males; mean age 54 [standard deviation (SD) 9] years} or the control group [n=25; 20 males; mean age 58 (SD 9) years]. INTERVENTIONS: The exercise group participated in an 8-week aerobic exercise programme plus usual medical care and follow-up. The control group received usual medical care and follow-up. MAIN OUTCOME MEASURES: The primary outcome measure was change in time spent undertaking moderate-to-vigorous physical activity per day, assessed by accelerometer over 7 consecutive days. Secondary outcome measures were cardiorespiratory fitness, body mass, and resting blood pressure and heart rate. RESULTS: Moderate-to-vigorous physical activity levels increased significantly in the exercise group [43.2 (SD 36.3) to 53.5 (SD 31.9) minutes/day, P=0.030], and remained unchanged in the control group [40.8 (SD 26.2) to 36.8 (SD 26.5) minutes/day, P=0.241] from baseline to the end of the programme. Cardiorespiratory fitness increased significantly in the exercise group (mean difference 2.8; 95% of the difference 1.3 to 4.4ml/kg/minute, P=0.001) after the 8-week programme. CONCLUSIONS: In patients under optimal medication following myocardial infarction, participation in an 8-week exercise-based cardiac rehabilitation programme was found to improve physical activity levels consistent with health-related benefits. Future studies are needed to determine whether the increase in physical activity is maintained in the long term.
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