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Table 2 Mean (1 standard deviation) walking speed and autocorrelation coefficients P1 and P2. The MEAN value represents the average of values at normal and fast walking speeds

From: Improvement of walking speed and gait symmetry in older patients after hip arthroplasty: a prospective cohort study

   

TD1

TD2

TD3

Reference group

Parameter

Sex

Walking speed

Mean

SD

Mean

SD

Mean

SD

Mean

SD

Walking speed [m/s]

female

normal

2.77

.67

3.75

.54

4.09

.53

5.06

.78

fast

3.62

.77

4.50

.69

4.83

.70

6.27

.82

male

normal

3.63

.84

4.20

.47

4.62

.40

4.69

.64

fast

4.68

.76

5.30

.46

5.75

.52

5.83

.84

Autocorrelation coefficient P1

female

normal

.7738

.0659

.7962

.0883

.8143

.0824

.8828

.0647

fast

.7604

.0980

.7848

.0988

.8064

.0891

.8771

.0863

MEAN

.7671

.0820

.7905

.0936

.8104

.0858

.8800

.0755

male

normal

.6704

.1190

.7350

.1260

.7886

.1246

.9031

.0613

fast

.7214

.1166

.7597

.1125

.7963

.1037

.8882

.0639

MEAN

.6959

.1178

.7474

.1193

.7925

.1142

.8957

.0626

Autocorrelation coefficient P2

female

normal

.9007

.0604

.9002

.0669

.9120

.0577

.9094

.0680

fast

.8983

.0776

.8904

.1005

.9003

.0757

.9054

.0888

MEAN

.8995

.0690

.8953

.0837

.9061

.0667

.9074

.0784

male

normal

.8969

.0673

.9174

.0538

.9190

.0564

.9166

.0700

fast

.9144

.0485

.9198

.0466

.9223

.0572

.9337

.0510

MEAN

.9056

.0579

.9186

.0502

.9206

.0568

.9251

.0605

  1. P1 first dominant peak of the acceleration signal, P2 second dominant peak of the acceleration signal, SD standard deviation