Fractal Analysis of Balance in Elderly and Young Adults
Author Information
Author(s): Amoud Hassan, Abadi Mohamed, Hewson David J, Michel-Pellegrino Valérie, Doussot Michel, Duchêne Jacques
Primary Institution: Institut Charles Delaunay, Université de technologie de Troyes, France
Hypothesis
Can fractal and non-linear time-series analysis of stabilograms provide insights into postural stability in elderly compared to young adults?
Conclusion
Both methods of analysis can reliably assess postural stability in elderly and young adults using short time series.
Supporting Evidence
- The study found that both SDA and DFA methods could identify differences in postural stability between elderly and young subjects.
- Reliable estimations of the Hurst exponent were obtained from time series as short as 5 seconds.
- Elderly subjects showed increased variability in postural stability compared to young adults.
Takeaway
This study looked at how well elderly people can balance compared to younger people, using special math to analyze their movements.
Methodology
Centre of pressure signals were recorded from 90 young adults and 10 elderly subjects, analyzed using Detrended Fluctuation Analysis (DFA) and Stabilogram Diffusion Analysis (SDA).
Potential Biases
Potential bias in participant selection and the influence of external factors during testing.
Limitations
The study's sample size for elderly subjects was small, and the results may not generalize to all elderly populations.
Participant Demographics
90 young adults (57 men, 33 women) aged approximately 19.7 years; 10 elderly subjects (4 men, 6 women) aged approximately 80.4 years.
Statistical Information
P-Value
p<0.05
Confidence Interval
95%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website