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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Languages: English
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Rationale\ud \ud Chronic obstructive pulmonary disease (COPD) is a progressive lung condition with extrapulmonary manifestations- cardiovascular diseases (CVD), impaired physical function, activity and increased frailty. Integrating measures of function into community assessments is hindered by the space and time required. The association of function, activity and CVD has not been extensively investigated in COPD.\ud \ud Objectives\ud \ud Explore the potential utility of Time Up and Go (TUG) as a measure of physical function in COPD\ud \ud Assess association of non-invasive measures of haemodynamics to physical function and self-reported activity\ud \ud Explore ambulatory haemodynamics in COPD and controls\ud \ud Methods\ud \ud Subjects with COPD (n=119) and controls (n=58) were recruited. Ethical and governance approvals were obtained. A medical history including falls, spirometry, peripheral and central haemodynamics, self-reported physical activity questionnaires and functional assessments (TUG and six-minute walk distance (6MWD)) were obtained from all subjects. Ambulatory 24-hour haemodynamics including aortic pulse wave velocity (aPWV) and blood pressure were measured in patients (n=20) and controls (n=19).\ud \ud Results\ud \ud TUG mean(SD) was increased in patients 11.9(3.7)s compared to controls 9.5(1.8)s, p<0.001. In patients, fallers had longer TUG than non-fallers (p=0.02) and a cut-off time of 12s had the highest sensitivity and specificity to detect fallers and non-fallers. Aortic stiffness was not associated to physical function or physical activity, p>0.05. In the pilot study, significant nocturnal dip in aPWV was seen in controls, p<0.01, but not in patients, p=0.07.\ud \ud Conclusion\ud \ud TUG could be a useful measure of function and possibly be incorporated into COPD assessment, particularly where time and space are limited. Finally, ambulatory haemodynamic machine, the Mobil-O-Graph, is feasible and offers opportunity to assess 24-hour haemodynamics profile including aPWV as opposed to a one-off measurement.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • α1AT
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