Gait events detection allows clinicians and biomechanics researchers to determine timing of gait events, to estimate duration of stance phase and swing phase and to segment gait data.
Moreover, average duration of stance also did not differ among genotypes (p = 0.16, Kruskal-Wallis test).
The footfall pattern resembles a tripod, also for lower velocities, but with keeping the ratio between swing duration and stance duration about constant.
(B – D ) Stride length (B ), cadence (C, 1/stride duration) and stance duration (D ) vs walking speed for pcd mice (purple) and littermate controls (green).
(D, E ) Temporal measures of the step cycle; cadence (inverse of stride duration) and stance duration, respectively (median ±25th, 75th percentile).
From our data, we find that swing duration surpasses stance duration at a duty factor of 0.5, which corresponds to a speed of 52.8 cm/s (Fig. 3f).
Additionally, a kinematic study of horses found that the duration of stance and stride in foals can be normalised using linear or dynamic scaling by the height at the withers and used to predict the values observed in adulthood.
Spatial (foot rotation, step width, stride and step length), temporal (stride and step times, duration of stance, swing and single and double support) and peak vertical ground reaction force variables were collected over a 30 second capture period, equating to an average of 52 ± 5 steps of steady state walking.
While to date studies have mainly employed temporal or spatial parameters of gait, such as walking speed [ 5, 6, 26], duration of stance and swing phases [ 27, 28] and distances or angles between pawprints or footprint pressure [ 4, 19], we have introduced a functional measure of movement which cannot be detected by the methods described previously.
Durations of stance (blue) and swing (red) phases as a function of speed.
