Related Experiment Video
Updated: May 1, 2026

Exergaming in Older People Living with HIV Improves Balance, Mobility and Ameliorates Some Aspects of Frailty
Published on: October 6, 2016
Association between relative free-living sit-to-stand transition thigh angular velocities and difficulties in
Antti Löppönen1, Kaisa Koivunen2, Taina Rantanen2
1Faculty of Sport and Health Sciences and Gerontology Research Center, University of Jyväskylä, PO Box 35, Jyväskylä, FI-40014, Finland. antti.ej.lopponen@jyu.fi.
Background:
Sit-to-stand (STS) transitions are common daily activities, and we postulate that completing them with high effort relative to one's capacity may indicate functional difficulties in older age.
Aims:
We examined the association between relative free-living STS thigh angular velocity and difficulties in activities of daily living (ADL) and instrumental activities of daily living (IADL), as well as walking and negotiating stairs.
Methods:
This cross-sectional study included 230 individuals (53% women) aged 79-89 years. STS capacity was assessed with an instrumented five-times STS test. Free-living STS transitions were monitored in 2-hour intervals over four days using an accelerometer. Associations were examined using Wilcoxon rank-sum test and logistic regression analyses.
Results:
In total, 47% had ADL/IADL difficulties, 26% reported walking difficulties, and 17% had difficulties negotiating stairs. Participants with any difficulties performed STS transitions at a higher proportion of their STS capacity compared to those without difficulties (p < 0.05). Higher relative free-living STS thigh angular velocity was associated with walking and stair negotiation difficulties in both crude (OR 1.23-1.53; p < 0.05) and adjusted models (OR 1.20-1.40; p < 0.05), while the association with ADL/IADL difficulties weakened after adjustment.
Conclusions:
Our findings suggest that performing STS transitions at high intensity may reflect emerging mobility difficulties.
More Related Videos
08:24Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
Published on: August 30, 2016
08:40Quantifying Arms and Legs Contributions during Repetitive Electrically-Assisted Sit-To-Stand Exercise in Paraplegics: A Pilot Study
Published on: November 11, 2022
Related Concept Videos
Anatomical Movements
Here are some common anatomical movements:
Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist,...
Relative Motion Analysis - Velocity
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
Relative Motion Analysis using Rotating Axes
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
Relative Motion Analysis - Acceleration
Relative Motion Analysis using Rotating Axes - Acceleration
Time differentiation is...
Alterations in Muscle Tone ll