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Pedometers to enhance physical activity in COPD: a randomised controlled trial

Laura Mendoza, Paula Horta, José Espinoza, Miguel Aguilera, Nicolás Balmaceda, Ariel Castro, Mauricio Ruiz, Orlando Díaz, Nicholas S. Hopkinson
European Respiratory Journal 2014; DOI: 10.1183/09031936.00084514
Laura Mendoza
1Sección Neumología, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
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  • For correspondence: lmendoza08@gmail.com
Paula Horta
1Sección Neumología, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
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José Espinoza
1Sección Neumología, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
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Miguel Aguilera
1Sección Neumología, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
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Nicolás Balmaceda
1Sección Neumología, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
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Ariel Castro
1Sección Neumología, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
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Mauricio Ruiz
1Sección Neumología, Departamento de Medicina, Hospital Clínico Universidad de Chile, Santiago, Chile
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Orlando Díaz
2Departamento de Enfermedades Respiratorias, Pontificia Universidad Católica de Chile, Santiago, Chile
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Nicholas S. Hopkinson
3National Institute for Health Research Respiratory Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust, Imperial College, London, UK
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Abstract

Physical inactivity is a cardinal feature of chronic obstructive pulmonary disease (COPD), and is associated with increased morbidity and mortality. Pedometers, which have been used in healthy populations, might also increase physical activity in patients with COPD.

COPD patients taking part in a 3-month individualised programme to promote an increase in their daily physical activity were randomised to either a standard programme of physical activity encouragement alone, or a pedometer-based programme. Assessments were performed by investigators blinded to treatment allocation. Change in average 1-week daily step count, 6-min walking distance (6MWD), modified Medical Research Council scale, St George’s respiratory questionnaire (SGRQ) and COPD assessment test (CAT) were compared between groups.

102 patients were recruited, of whom 97 completed the programme (pedometer group: n = 50; control group: n = 47); 60.8% were male with a mean±sd age of 68.7±8.5 years, and forced expiratory volume in 1 s (FEV1) 66.1±19.4% and FEV1/forced vital capacity 55.2±9.5%. Both groups had comparable characteristics at baseline. The pedometer group had significantly greater improvements in: physical activity 3080±3254 steps·day−1 versus 138.3±1950 steps·day−1 (p<0.001); SGRQ -8.8±12.2 versus -3.8±10.9 (p = 0.01); CAT score -3.5±5.5 versus -0.6±6.6 (p = 0.001); and 6MWD 12.4±34.6 versus -0.7±24.4 m (p = 0.02) than patients receiving activity encouragement only.

A simple physical activity enhancement programme using pedometers can effectively improve physical activity level and quality of life in COPD patients.

Abstract

Pedometer-based programme produced clinically important improvements in physical activity and health status in COPD http://ow.ly/AmcCO

  • Received May 7, 2014.
  • Accepted August 7, 2014.
  • © ERS

ERJ Open articles are open access and distributed under the terms of the Creative Commons Attribution Non-Commercial Licence 4.0.

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Pedometers to enhance physical activity in COPD: a randomised controlled trial
Laura Mendoza, Paula Horta, José Espinoza, Miguel Aguilera, Nicolás Balmaceda, Ariel Castro, Mauricio Ruiz, Orlando Díaz, Nicholas S. Hopkinson
European Respiratory Journal Jan 2014, erj00845-2014; DOI: 10.1183/09031936.00084514

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Pedometers to enhance physical activity in COPD: a randomised controlled trial
Laura Mendoza, Paula Horta, José Espinoza, Miguel Aguilera, Nicolás Balmaceda, Ariel Castro, Mauricio Ruiz, Orlando Díaz, Nicholas S. Hopkinson
European Respiratory Journal Jan 2014, erj00845-2014; DOI: 10.1183/09031936.00084514
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