Correlates of physical activity in chronic obstructive pulmonary disease
Correlates of physical activity in chronic obstructive pulmonary disease
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DOI:
10.1097/00006199-200107000-00003
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发表时间:
2001-07-01
期刊:
影响因子:
2.5
通讯作者:
Buchner, DM
中科院分区:
文献类型:
--
作者:
Belza, B;Steele, BG;Buchner, DM
Background: Physical activity is a key dimension of functional status in people with chronic obstructive pulmonary disease (COPD), and the central target of interventions in this group.Objectives: To determine the relationships among functional performance measured as physical activity, functional capacity, symptom experiences, and health-related quality of life in people with COPD.Method: Cross-sectional, descriptive study. Convenience Sample of 63 outpatients with COPD studied prior to entry into a pulmonary rehabilitation program.Results: Daily physical activity, as measured by an accelerometer, was strongly associated with maximal distance walked during a 6-minute walk test (r = .60, p < .00), level of airway obstruction (r = .37, p < .01), walking self-efficacy (r = .27, p < .05), and physical health status (r =.40, p < .01). Physical activity was not correlated with self-report of functional status. The only predictor of physical activity was the 6-minute walk test. 1Conclusions: Accelerometer measurement of functional performance was most significantly related to walking abilities. This methodology represents a novel approach to measuring an important dimension of functional status not previously well quantified.