The temporal association between executive function and life-space mobility in old age
Poranen-Clark, T., von Bonsdorff, M., Rantakokko, M., Portegijs, E., Eronen, J., Pynnönen, K., Eriksson, J. G., Viljanen, A., & Rantanen, T. (2018). The temporal association between executive function and life-space mobility in old age. Journals of Gerontology. Series A: Biological Sciences and Medical Sciences, 73(6), 835-839. https://doi.org/10.1093/gerona/glx217
© 2017, Oxford University Press
Background Life-space mobility, an indicator of community mobility, describes person’s movements in terms of the distance from home, the frequency of movement, and the need of assistance for movement. Executive function (EF) is a higher-order cognitive function that supervises motor control and plays a key role in a person’s ability to function independently. Cognitive impairment often co-occurs with restricted life-space mobility; however, the direction of the longitudinal associations between EF and life-space mobility is unclear. The aim of this study was to investigate the temporal associations between EF and life-space mobility among community-dwelling older people. Methods One hundred eight community-dwelling persons aged 76 to 91 years participated in the 2 year follow-up study. EF was measured with the Trail Making Test. The Life-Space Assessment (range 0–120, higher scores indicate more mobility) was used to assess life-space mobility. Cross-lagged model design was used to examine longitudinal relationship between EF and life-space mobility. The model was adjusted for age and gender. Results Average age of participants at baseline was 82.2 (SD 4.1) years and 59% were women. Better EF at baseline predicted higher life-space mobility at follow-up (path coefficient = 3.81, 95% confidential interval; 0.84, 6.78, p = .012), whereas baseline life-space mobility did not predict EF at follow-up. Conclusion EF was a determinant of life-space mobility. Supporting EF may enhance maintaining independence and active participation in old age. ...
PublisherGerontological Society of America
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- Liikuntatieteiden tiedekunta 
Related funder(s)Academy of Finland
Funding program(s)Postdoctoral Researcher, AoF
Additional information about fundingThis study was supported by the Academy of Finland (the Future of Living and Housing Program ASU-LIVE; grant number 255403 [to TR], number 263729 [to AV]; number 285747 [to MR]; numbers 129369, 129907, 135072, 129255, and 126775 [to JGE], and number 257239 [to MBvB]; Finnish Ministry of Education and Culture [to TR, MR, and EP]. TP-C was supported by Yrjö Jahnsson Foundation and Juho Vainio Foundation. ...
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