ArticleExperimental brain research2025
Postural sway variability in young adults presents higher complexity during morning compared to evening hours while in older adults remains the same.
Article in Experimental brain research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed.
- Medial parapatellar surgical approach leads to greater loss of postural sway complexity compared to mid-vastus approach in women undergoing total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Trial
- Reliability of a Home-Based Smartphone Balance Assessment in Healthy Middle-Aged and Older Adults.Sensors (Basel, Switzerland) · 2026Article
- Hurst-Kolmogorov Process is a More Reliable and Statistically Powerful Alternative to Detrended Fluctuation Analysis for Estimating Hurst in Short Walking Trials.Annals of biomedical engineering · 2026Article
- Exercise improves physical function in young women with functional ankle instability: a randomized controlled trial of 8-week structured high-intensity circuit training on balance, ankle function, and physical fitness.Journal of exercise science and fitness · 2026Article
Corrections and comments
- Erratum issued
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Human movement variability reflects the adaptive capacity of the nervous system, yet how it is influenced by aging and circadian rhythms remain unclear. Therefore, the purpose of this study was to investigate postural sway variability as a function of aging and time of day. Nineteen young and nineteen older adults completed one 60-s quite stance trial with eyes open while standing on a force platform, at 12 p.m. and 12 a.m. Postural sway variability was evaluated regarding both its magnitude (total travel distance and interquartile range) and the complexity (a exponent using Detrended Fluctuation Analysis) of its temporal structure using the center of pressure time series. A two-way ANOVA (2 age groups × 2 times of day) was used. Correlation analysis was also performed to further investigate the relationship between circadian regulation and postural sway complexity. Complexity was higher for the young compared to the older group independently of the time of day. Furthermore, young adults presented higher values during the morning as compared to evening, while older adults did not reveal significant differences within the day. Finally, a strong correlation was found but only for young adults. In general, our results suggested that complexity of postural sway variability is affected both by age and time of day. Aging impacts postural control by reducing the complexity of sway variability and diminishing its sensitivity to circadian influences. Future work will address the effect of chronotype, sleep, and arousal levels on these novel findings and assess their impact on overall health.
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