Physical activity and fitness in patients with COPD: making a change

Altenburg, W. A., 2015, [Groningen]: University of Groningen. 159 p.

Research output: ThesisThesis fully internal (DIV)Academic

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  • Wytske Agatha Altenburg
Physical activity level in patients with COPD is decreased compared to healthy subjects. This thesis shows the results of a randomized controlled trial investigating whether physical activity level can be increased in COPD patients. A physical activity counseling program was compared to usual care. After 3 months, physical activity level in the counseling group was increased compared to usual care. After 15 months this effect was still significant for patients with a low baseline physical activity level. An effect of counseling on quality of life and exercise capacity was only found in patients participating in the outpatient clinic setting, and only in the short term. Of the patient 29.7% dropped out. Patients most frequently dropped out because of lack of motivation and medical reasons. Patients with low intrinsic motivation for physical activity had higher risk of dropout within the first 3 months, patients with worse lung function had higher risk of dropout between 3 and 15 months. Short-term dropout seems to be related to psychological factors and long-term dropout by disease related factors. Another analysis showed that a direct relationship between functional factors and physical activity existed, whereas the relationship between psychological factors (anxiety, depression, self-efficacy, motivation) and physical activity was indirect, through functional variables. Psychological factors seem to be more important for physical activity in patients with a higher physical fitness, whereas functional factors are more important in patient with lower physical fitness.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
Award date15-Jun-2015
Place of Publication[Groningen]
Print ISBNs978-90-367-7895-4
Electronic ISBNs978-90-367-7894-7
Publication statusPublished - 2015

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