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Table 5 Gait parameter differences between people with and without HIV as measured by the respective systems

From: Kinematics and temporospatial parameters during gait from inertial motion capture in adults with and without HIV: a validity and reliability study

Parameter Mean difference 95% CI p-value Mean difference 95% CI p-value
IMU OMC
Spatial parameters
 Step length (cm) 2.29 − 2.92; 7.50 0.36 2.60 − 1.9; 7.1 0.24
 Normalized step length 0.05 − 0.03; 0.13 0.19 0.10 0.0; 0.1 0.09
 Stride length (cm) 5.31 − 5.11; 15.73 0.29 5.62 − 3.52; 14.76 0.21
 Normalized stride length 0.11 − 0.04; 0.26 0.15 0.11 − 0.01; 0.24 0.08
Temporal parameters
 Cadence (steps/min) 7.71 − 2.11; 17.54 0.11 7.34 − 2.41; 17.09 0.13
 Stance time (s) − 0.06 − 0.11; 0.00 0.04* − 0.06 − 0.11; 0.00 0.04*
 Step time (s) − 0.04 − 0.09; 0.01 0.12 − 0.04 − 0.09; 0.01 0.11
 Single support time (s) − 0.02 − 0.06; 0.03 0.41 − 0.02 − 0.06; 0.02 0.37
 Double support time (s) − 0.04 − 0.07; − 0.01 0.01* − 0.04 − 0.06; − 0.02 < 0.01*
Temporophasic parameters
 Stance time (%GC) − 1.41 − 2.90; 0.09 0.06 − 1.29 − 2.13; − 0.45 0.01*
 Single support time (%GC) 0.99 − 0.65; 2.62 0.22 1.06 0.20; 1.92 0.02*
 Double support time (%GC) − 2.39 − 5.34; 0.56 0.10 − 2.35 − 3.97; − 0.73 0.01*
Temporospatial parameters
 Gait speed (m/s) 0.12 − 0.02; 0.26 0.09 0.13 0.00; 0.27 0.06
 Normalized gait speed 0.05 0.00; 0.10 0.06 0.05 0.00; 0.10 0.03*
  1. Asterisks indicate statistically significant differences between participant groups
  2. %GC percentage of gait cycle, IMU inertial measurement units, OMC optical motion capture