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Table 2 Mean and standard deviation of linear approached based on COP sway in four groups

From: A comparison of linear and nonlinear stability parameters in different clinical forms of multiple sclerosis

Parameter

Normal G.

Ataxia G.

Spastic G.

Ataxic-spastic G.

P-values

COP excursion (mm) (AP)

25.65 ± 10.85

50.05 ± 27.4

41.68 ± 12.32

46.56 ± 15.34

At.&Sp. = 0.6

At.&A.S. = 0.9

Sp.&A.S. = 0.9

No.&At. = 0.002*

No.& A.S. = 0.01*

No.&Sp. = 0.06

COP excursion (mm) (ML)

13.76 ± 5.32

49.87 ± 50.69

31.31 ± 21.51

37.7 ± 25.54

At.& Sp. = 0.4

At.&A.S. = 0.7

Sp.&A.S. = 0.9

No.&At. = 0.009*

No.& A.S. = 0.1

No& Sp. = 0.3

Sum path length (mm) (AP)

460.8 ± 62.6

876.3 ± 281.8

634.2 ± 160.6

950.7 ± 358.1

At.& Sp. = 0.06

At.&A.S. = 0.8

Sp.&A.S. = 0.008*

No.&At. = 0.000*

No.& A.S. = 0.00*

No& Sp. = 0.2

Sum path length (mm) (ML)

502.2 ± 77.2

978.2 ± 463.3

678.4 ± 264.2

1014.4 ± 411.2

At. & Sp. = 0.1

At. &A.S. = 0.9

Sp. &A.S. = 0.06

No.&At. = 0.002*

No.&A.S. = 0.001*

No& Sp. = 0.4

  1. Values are expressed as mean ± SD, P-value less than 0.05 (95% confidence interval), *P < 0.05
  2. At.: ataxic group; Sp.: spastic group; A.S.: ataxic-spastic group; &: P-value between 2 groups
  3. COP Center Of Pressure, AP Anterior-Posterior, ML Medio-Lateral