Associations of real-life mobility with measures of physical, cognitive as well as psychosocial functioning in community-dwelling older adults

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Studies have shown that limited mobility is associated with morbidity, increased fall risk, loss of
independence, institutionalization, and increased mortality. To support older people in maintaining
independent mobility, it is important to have knowledge of factors that impact on mobility. Although
literature demonstrates the multi-dimensionality of mobility, most studies of mobility in older people do
not take this into account. This study aims to have a more comprehensive approach to mobility in older
people by analyzing the association of life-space and physical activity in daily life with hypothesized
mobility determinants. Data were obtained in a sample of over 100 older community dwelling adults.
Life-space mobility and physical activity were assessed based on measurements by smartphone during
one week. Life-space variables (life-space, action range and total distance) were calculated from GPS
data, and physical activity variables (active and gait time and number of steps) were calculated from
inertial sensors in the smartphone. Physical functioning was assessed based on measures of cardio
fitness, leg and handgrip strength, balance and gait function; cognitive functioning was assessed based
on measures of attention and executive function; in addition psychological (loneliness, perceived ageism
and self-efficacy measures) and social determinants (sociableness, perceived help availability and social
networks) were assessed. Our results show differential associations between life space, physical activity
and the hypothesized mobility determinants which may contribute to a better understanding of mobility
limitations and challenges in designing appropriate interventions to enhance mobility in older persons.
Original languageGerman
Title of host publicationOral session & poster abstracts : ICAMPAM 2017
Number of pages2
PublisherNational Institutes of Health (NIH)
Publication date2017
Publication statusPublished - 2017
EventInternational Conference on Ambulatory Monitoring of Physical Activity and Movement - Bethesa, Maryland , United States
Duration: 21.06.201723.06.2017
Conference number: 5

ID: 3286432

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