Age-Related Impairment of Quality of Joint Motion in Vibroarthrographic Signal Analysis

Table 2

Statistical differences ​​( values) between particular decades of life in VAG signal parameters.

Compared groups	VMS	P1	P2
3th vs 4th	0.001	0.000	0.005	0.807
3th vs 5th	0.000	0.000	0.000	0.397
3th vs 6th	0.000	0.000	0.000	0.176
3th vs 7th	0.000	0.000	0.000	0.023
4th vs 5th	0.583	0.576	0.002	0.921
4th vs 6th	0.113	0.093	0.000	0.634
4th vs 7th	0.000	0.000	0.000	0.201
5th vs 6th	0.799	0.760	0.865	0.965
5th vs 7th	0.001	0.000	0.001	0.634
6th vs 7th	0.054	0.010	0.026	0.956

VMS, variance of the mean squares; P1 and P2, power spectral density bands: 50–250 Hz and 250–450 Hz, respectively; , entropy.