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Table 1 Magnitude (Mag) and variability (Var) of kinematic and EMG parameters, significant surface comparisons (PRS vs. UIS) indicated in bold.

From: Walking on an unpredictable irregular surface changes lower limb biomechanics and subjective perception compared to walking on a regular surface

 

Frontal plane ankle angle [deg]

Normalized muscle activity during stance [%]

 

Inversion touchdown

Eversion maximum

Tibialis Anterior

Gastrocnemius Med

Peroneus Longus

 

Mag

Var

Mag

Var

Mag

Var

Mag

Var

Mag

Var

PRS

-2.8

1.5

7.7

0.9

19.1

2.6

31.3

4.9

38.8

9.7

UIS

-1.5

1.9

9.3

3.4

19.6

3.4

31.9

5.5

48.5

11.3

p-value

.006

.002

.001

001

.435

.013

.831

.049

.006

.163