Association of Sit-to-Stand Capacity and Free-Living Performance Using Thigh-Worn Accelerometers among 60- to 90-Yr-Old Adults
Löppönen, A., Delecluse, C., Suorsa, K., Karavirta, L., Leskinen, T., Meulemans, L., Portegijs, E., Finni, T., Rantanen, T., Stenholm, S., Rantalainen, T., & Van Roie, E. (2023). Association of Sit-to-Stand Capacity and Free-Living Performance Using Thigh-Worn Accelerometers among 60- to 90-Yr-Old Adults. Medicine and Science in Sports and Exercise, 55(9), 1525-1532. https://doi.org/10.1249/MSS.0000000000003178
Published inMedicine and Science in Sports and Exercise
© 2023 the Authors
Purpose Five times sit-to-stand (STS) test is commonly used as a clinical assessment of lower-extremity functional ability, but its association with free-living performance has not been studied. Therefore, we investigated the association between laboratory-based STS capacity and free-living STS performance using accelerometry. The results were stratified according to age and functional ability groups. Methods This cross-sectional study included 497 (63% women) participants aged 60–90 years from three independent studies. A thigh-worn tri-axial accelerometer was used to estimate angular velocity in maximal laboratory-based STS capacity and in free-living STS transitions over 3-7 days of continuous monitoring. Functional ability was assessed with Short Physical Performance Battery (SPPB). Results Laboratory-based STS capacity was moderately associated with the free-living mean and maximal STS performance (r = 0.52 - 0.65, p < .01). Angular velocity was lower in older compared to younger and in low- versus high-functioning groups, both in capacity and free-living STS variables (all p < .05). Overall, angular velocity was higher in capacity compared to free-living STS performance. The STS reserve (test capacity – free-living maximal performance) was larger in younger and in high-functioning compared to older and low-functioning groups (all p < .05). Conclusions Laboratory-based STS capacity and free-living performance were found to be associated. However, capacity and performance are not interchangeable, but rather provide complementary information. Older and low-functioning individuals seemed to perform free-living STS movements at a higher percentage of their maximal capacity compared to younger and high-functioning individuals. Therefore, we postulate that low capacity may limit free-living performance. ...
PublisherLippincott Williams & Wilkins
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- Liikuntatieteiden tiedekunta 
Related funder(s)European Commission; Academy of Finland
Funding program(s)Academy Project, AoF; Academy Research Fellow, AoF; Research costs of Academy Research Fellow, 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 fundingConflict of Interest and Funding Source: LEUVEN study was supported by the Research Foundation Flanders, Belgium (senior postdoctoral fellowship 12Z5720N to E.V.R). FIREA-study was supported by the Academy of Finland (286294, 319246 and 294154 to S.S.), the Ministry of Education and Culture (to SS). AGNES2-study was supported by the Academy of Finland (The Academy of Finland grant numbers 321336, 328818 and 352653 to Ti.R.), Advanced Grant from the European Research Council (Grant 693045 to Ta.R.), the Academy of Finland (Grant 310526 to Ta.R.), the Finnish Ministry of Education and Culture (to Ta.R.) and Academy of Finland (The Academy of Finland grant numbers 339391 and 346462 to L.K.). None of the authors have conflicts of interests to report. The results of the study are presented clearly, honestly, and without fabrication, falsification, or inappropriate data manipulation. The results of the present study do not constitute endorsement by the American College of Sports Medicine. ...
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