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Table 4 Correlation analysis (Spearman’s correlation coefficient) of the gait parameters during the normal walking condition and the NMDAS

From: Quantification of gait in mitochondrial m.3243A > G patients: a validation study

Variable

NMDAS

NMDAS Subscales

Exercise tolerance

Gait stability

Myopathy

Cerebellar Ataxia

Velocity (m/s)

−0 · 472

−0 · 399

−0 · 599

−0 · 505

−0 · 450

Step length (m)

−0 · 391

−0 · 387

−0 · 479

−0 · 404

−0 · 392

Step time (s)

0 · 165

0 · 098

0 · 340

0 · 221

0 · 278

Step width (m)

0 · 206

−0 · 046

0 · 195

−0 · 164

0 · 287

Step length variability (mm)

0 · 444

0 · 103

0 · 489

−0 · 010

0 · 601

Step time variability (ms)

0 · 505

0 · 020

0 · 602

0 · 120

0 · 450

Step width variability (mm)

0 · 246

0 · 192

0 · 371

0 · 216

0 · 547

Step Length Asymmetry (mm)

−0 · 101

0 · 337

0 · 073

−0 · 038

0 · 213

Step Time Asymmetry (ms)

0 · 137

0 · 134

0 · 108

0 · 137

0 · 015

  1. NMDAS Newcastle Mitochondrial Disease Adult Scale, NMDAS subscales are scored from 0 (no impairments) to 5 (severely impaired), significant correlations with a p-value below 0 · 05 are shown in italic,
  2. p-values below 0 · 001 are bold