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- W2310125982 abstract "This thesis addresses current issues regarding assessment of physical activity (PA)and physical function (PF) status of haemodialysis (HD) patients, specifically: Whatis the recommended wear time to provide a reliable accelerometer estimate ofhabitual PA and sedentary behaviour? Can similar outcomes from differentaccelerometers be used interchangeably? Do subjectively and objectively estimatedPA outcomes agree closely enough to be pooled? Which PF assessments arepotentially most ‘useful’? This thesis also explores potential risk factors of arterialstiffness, a strong predictor of mortality in this population.A PA reliability study involving 70 maintenance HD patients (55.9 ± 15.7 years) overa seven-day monitoring period indicated one dialysis day and two non-diaysis dayswith a minimum of eight hours wear per day would provide reliable estimates of PAand sedentary behaviour regardless of accelerometer employed, and allowed 90%sample retention. Concordance studies indicated broad agreement for similaroutcomes obtained via ActivPAL and Actigraph GT3X accelerometers but they werenot interchangeable. ActivPAL is recommended for monitoring steps taken and timeseated, Actigraph activity count output for total/overall PA. Questionnaire andaccelerometer estimated PA outcomes may not be used interchangeably or pooled.More of the shared variance of physical performance was explained by clinical,demographic and habitual PA factors than for self-reported functional status thusrecommending the former. Age, blood pressure and HD vintage were determinantsof arterial stiffness, however PA and cardiorespiratory fitness did not appear to berisk factors in this sample.This thesis makes clear recommendations regarding implementation of PA and PFassessment methods, and illustrates their application on sample retention, as wellas characterising and potentially identifying individuals at risk of poor outcomes.Emergence of HD vintage as a risk factor for arterial stiffness underscores the needfor further research into adjunctive lifestyle interventions to manage health threats inthis population." @default.
- W2310125982 created "2016-06-24" @default.
- W2310125982 creator A5077608253 @default.
- W2310125982 date "2015-01-01" @default.
- W2310125982 modified "2023-09-26" @default.
- W2310125982 title "Physical activity, physicalfunction and arterial stiffness ofpeople undergoing maintenance haemodialysis for stage 5 chronic kidney disease" @default.
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