Muscle activation patterns during walking from transtibial amputees recorded within the residual limb-prosthetic interface

Huang, Stephanie; Ferris, Daniel P

doi:10.1186/1743-0003-9-55

Journal of NeuroEngineering and Rehabilitation

Table 2 EMG activation pattern cross-correlations

From: Muscle activation patterns during walking from transtibial amputees recorded within the residual limb-prosthetic interface

0.7 m/s	$ρ_{\bar{X} X_{i}}$	$ρ_{\bar{X} Y_{i}}$	$ρ_{\bar{Y} Y_{i}}$
0.7 m/s	mean (sd)	mean (sd)	mean (sd)
Tibialis Anterior	0.73 (0.11) *°	−0.33 (0.13) °	0.44 (0.21) *
Gastrocnemius Medial Head	0.90 (0.09) *°	0.48 (0.42) °	0.45 (0.32) *
Gastrocnemius Lateral Head	0.79 (0.17) *°	0.37 (0.40) °	0.37 (0.35) *
Vastus Lateralis	0.81 (0.19)	0.83 (0.08)	0.89 (0.07)
Rectus Femoris	0.63 (0.28)	0.70 (0.23)	0.71 (0.18)
Biceps Femoris	0.75 (0.10) *°	0.31 (0.48) °	0.35 (0.36) *
Gluteus Medius	0.72 (0.31) *	0.66 (0.32)	0.67 (0.28) *
1.0 m/s	$ρ_{\bar{X} X_{i}}$	$ρ_{\bar{X} Y_{i}}$	$ρ_{\bar{Y} Y_{i}}$
	mean (sd)	mean (sd)	mean (sd)
Tibialis Anterior	0.80 (0.09) *°	−0.24 (0.08) °	0.32 (0.25) *
Gastrocnemius Medial Head	0.87 (0.08) *°	0.23 (0.40) °	0.20 (0.19) *
Gastrocnemius Lateral Head	0.83 (0.12) *°	0.20 (0.37) °	0.24 (0.37) *
Vastus Lateralis	0.86 (0.08)	0.83 (0.10)	0.90 (0.06)
Rectus Femoris	0.77 (0.16)	0.70 (0.23)	0.70 (0.23)
Biceps Femoris	0.86 (0.06) *°	0.38 (0.39) °	0.53 (0.30) *
Gluteus Medius	0.82 (0.14) *	0.63 (0.36)	0.61 (0.32) *
1.3 m/s	$ρ_{\bar{X} X_{i}}$	$ρ_{\bar{X} Y_{i}}$	$ρ_{\bar{Y} Y_{i}}$
	mean (sd)	mean (sd)	mean (sd)
Tibialis Anterior	0.84 (0.08) *°	−0.09 (0.18) °	0.20 (0.22) *
Gastrocnemius Medial Head	0.88 (0.07) *°	0.32 (0.26) °	0.41 (0.24) *
Gastrocnemius Lateral Head	0.92 (0.07) *°	0.32 (0.26) °	0.22 (0.32) *
Vastus Lateralis	0.89 (0.05)	0.84 (0.11)	0.84 (0.11)
Rectus Femoris	0.82 (0.15)	0.70 (0.23)	0.70 (0.23)
Biceps Femoris	0.89 (0.05) *°	0.33 (0.34) °	0.55 (0.26) *
Gluteus Medius	0.77 (0.19) *	0.63 (0.38)	0.56 (0.35) *
1.6 m/s	$ρ_{\bar{X} X_{i}}$	$ρ_{\bar{X} Y_{i}}$	$ρ_{\bar{Y} Y_{i}}$
	mean (sd)	mean (sd)	mean (sd)
Tibialis Anterior	0.85 (0.07) *°	−0.05 (0.36) °	0.27 (0.28) *
Gastrocnemius Medial Head	0.88 (0.07) *°	0.48 (0.28) °	0.53 (0.15) *
Gastrocnemius Lateral Head	0.91 (0.09) *°	0.40 (0.40) °	0.46 (0.34) *
Vastus Lateralis	0.90 (0.06)	0.77 (0.20)	0.74 (0.15)
Rectus Femoris	0.74 (0.15)	0.58 (0.30)	0.66 (0.33)
Biceps Femoris	0.89 (0.07) *°	0.31 (0.26) °	0.72 (0.13) *
Gluteus Medius	0.75 (0.18) *	0.50 (0.40)	0.45 (0.30) *

X = controls, Y = amputees; *p < 0.001 for $ρ_{\bar{X} X_{i}}$ vs. $ρ_{\bar{Y} Y_{i}}$ ; °p < 0.001 for $ρ_{\bar{X} X_{i}}$ vs. $ρ_{\bar{X} Y_{i}}$ .

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ISSN: 1743-0003

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