Measuring Physical Activity Levels in People With Mild Cognitive Impairment or Mild Dementia

in Journal of Aging and Physical Activity
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Measuring physical activity (PA) in people with mild cognitive impairment or dementia can be difficult. The aim was to investigate the validity and acceptability of three different PA measurement methods. The mixed-method analysis included 49 participants with mild cognitive impairment or dementia, who completed a daily calendar recording PA, the International Physical Activity Questionnaire, and the Longitudinal Aging Study Amsterdam PA Questionnaire, and those who wore a Misfit Shine accelerometer. The quantitative analysis showed equal completion rates for the International Physical Activity Questionnaire and the accelerometer but a lower completion rate for the calendar. Correlations between outcome measures were moderate or strong. The qualitative analysis indicated that all measures were acceptable, though some participants required help to complete the calendars or fasten the accelerometers. The study supported the validity of these methods for people with mild cognitive impairment and mild dementia. Using accelerometers and completing calendars might increase the motivation to be active for some people.

van der Wardt is with the Abteilung für Allgemeinmedizin, Präventive und Rehabilitative Medizin, Philipps-University Marburg, Marburg, Germany. Hancox is with the Division of Primary Care, School of Medicine, University of Nottingham, Nottingham, United Kingdom. Burgon and Bajwa are with the Division of Rehabilitation, Ageing and Well-being, School of Medicine, University of Nottingham, Nottingham, United Kingdom. Goldberg and Harwood are with the School of Health Sciences, University of Nottingham, Nottingham, United Kingdom.

van der Wardt (v.vanderwardt@uni-marburg.de) is corresponding author.
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