Journal article

Fatigue Alters the Pattern of Physical Activity Behavior in Older Adults: Observational Analysis of Data from the Generation 100 Study

Thorlene Egerton, Jorunn L Helbostad, Dorthe Stensvold, Sebastien FM Chastin

JOURNAL OF AGING AND PHYSICAL ACTIVITY | HUMAN KINETICS PUBL INC | Published : 2016

Abstract

Fatigue has been associated with reductions in daily activity of older people. Summary measures of daily physical activity provide limited understanding of how fatigue affects physical activity behavior. This study examined the hour-by-hour energy expenditure estimated from accelerometry data to provide insight into physical activity behaviors of older people experiencing fatigue. Fatigued participants were matched to 'not fatigued' participants by age, sex, and BMI. Each group consisted of 86 people with a mean age 73.8 years (SD 2.0), BMI 26.5 kg⋅m-2 (SD 3.9) and 61% female. The phase-space plot, constructed to express rate of change of average vertical axis counts per hour as a time serie..

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University of Melbourne Researchers