Physical activity scaled to preferred walking speed as a predictor of walking difficulty in older adults : a 2-year follow-up
Karavirta, L., Leppä, H., Rantalainen, T., Eronen, J., Portegijs, E., & Rantanen, T. (2022). Physical activity scaled to preferred walking speed as a predictor of walking difficulty in older adults : a 2-year follow-up. Journals of Gerontology Series A : Biological Sciences and Medical Sciences, 77(3), 597-604. https://doi.org/10.1093/gerona/glab277
© The Author(s) 2021. Published by Oxford University Press on behalf of The Gerontological Society of America.
Background The usual accelerometry-based measures of physical activity (PA) are dependent on physical performance. We investigated the associations between PA relative to walking performance and the prevalence and incidence of early and advanced walking difficulties compared to generally used measures of PA. Methods Perceived walking difficulty was evaluated in 994 community-dwelling participants at baseline (age 75, 80 or 85 years) and two years later over two kilometers (early difficulty) and 500 meters (advanced difficulty). We used a thigh-mounted accelerometer to assess moderate-to-vigorous PA, daily mean acceleration and relative PA as movement beyond the intensity of preferred walking speed in a 6-minute walking test (PArel). Self-reported PA was assessed using questionnaires. Results The prevalence and incidence were 36.2 % and 18.9 % for early, and 22.4 % and 14.9 % for advanced walking difficulty, respectively. PArel was lower in participants with prevalent (mean 42 (SD 45) vs. 69 (91) mins/week, p<0.001) but not incident early walking difficulty (53 (75) vs. 72 (96) mins/week, p=0.15) compared to those without difficulty. The associations between absolute measures of PA and incident walking difficulty were attenuated when adjusted for preferred walking speed. Conclusions The variation in habitual PA may not explain the differences in the development of new walking difficulty. Differences in physical performance explain a meaningful part of the association of PA with incident walking difficulty. Scaling of accelerometry to preferred walking speed demonstrated independence on physical performance and warrants future study as a promising indicator of PA in observational studies among older adults. ...
PublisherOxford University Press (OUP)
Publication in research information system
MetadataShow full item record
- Liikuntatieteiden tiedekunta 
Related funder(s)Academy of Finland; European Commission
Funding program(s)Research post as Academy Research Fellow, AoF; Research costs of Academy Research Fellow, AoF; Academy Project, AoF
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingThis work was supported by the European Research Council (grant number ERC AdvG 693045 to TaR); the Academy of Finland (grant number 310526 to TaR, and 321336, 328818 to TiR); and the Finnish Ministry of Education and Culture (to EP).
Showing items with similar title or keywords.
Body composition as a predictor of physical performance in older age : A ten-year follow-up of the Helsinki Birth Cohort Study Mikkola, Tuija M.; von Bonsdorff, Mikaela; Salonen, Minna K.; Simonen, Mika; Pohjolainen, Pertti; Osmond, Clive; Perälä, Mia-Maria; Rantanen, Taina; Kajantie, Eero; Eriksson, Johan G. (Elsevier Ireland Ltd., 2018)Background This study assessed how different measures of body composition predict physical performance ten years later among older adults. Methods The participants were 1076 men and women aged 57 to 70 years. Body ...
The effect of body mass index, lower extremity performance, and use of a private car on incident life-space restriction : a two-year follow-up study Tsuji, Taishi; Rantakokko, Merja; Portegijs, Erja; Viljanen, Anne; Rantanen, Taina (BioMed Central Ltd, 2018)Background: The purpose of the study was to explore the single and combined contributions of body mass index (BMI) and lower extremity performance as modifiable physical factors, and the influence of use of a private car ...
Associations of physical activity intensities, impact intensities and osteogenic index with proximal femur bone traits among sedentary older adults Savikangas, Tiina; Sipilä, Sarianna; Rantalainen, Timo (Elsevier, 2021)Background Dynamic high-intensity physical activity is thought to be beneficial for older adults’ bone health. Traditional volume-based processing of accelerometer-measured physical activity data, quantified on a ...
Mortality Risk among Older People Who Did Versus Did Not Sustain a Fracture : Baseline Prefracture Strength and Gait Speed as Predictors in a 15-Year Follow-Up Koivunen, Kaisa; Sillanpää, Elina; von Bonsdorff, Mikaela; Sakari, Ritva; Törmäkangas, Timo; Rantanen, Taina (Oxford University Press; The Gerontological Society of America, 2020)BACKGROUND: Physiological reserve, as indicated by muscle strength and gait speed, may be especially determinant of survival in people who are exposed to a health stressor. We studied whether the association between ...
Individual scaling of accelerometry to preferred walking speed in the assessment of physical activity in older adults Karavirta, Laura; Rantalainen, Timo; Skantz, Heidi; Lisko, Inna; Portegijs, Erja; Rantanen, Taina (Oxford University Press; Gerontological Society of America, 2020)Background Walking forms a large portion of physical activity (PA) of older adults. We assessed free-living PA using acceleration corresponding to preferred walking speed as a relative cut-point, and studied how it relates ...