Abstract：
:The present study investigated the feasibility and reliability of continuous relative phase (CRP) and deviation phase (DP) to assess intersegmental hind limb coordination pattern and coordination variability in rats during walking. Twenty-six adult rats walked at 8 m/min, 12 m/min and 16 m/min while two-dimensional kinematics were recorded. Segment angles and segment angular velocities of the paw, shank and thigh on the left hind-limb were extracted from 15 strides and CRP was calculated for the paw-shank and shank-thigh coupling. The effect of walking speed on the time point average curve of the CRP (ACRP) and DP and on the mean ACRP and mean DP was established by statistical parametric mapping (SPM) and a one-way ANOVA for repeated measures. Absolute and relative reliability were assessed by measurement error and intra-class correlation coefficient. The SPM analysis revealed time dependent differences in the effect of speed. Thus, the CRP of the paw-shank coupling decreased with increasing speed during most of the gait cycle while the CRP of the shank-thigh coupling was decreased during the swing phase. The session-to-session reliability was fair to good for the coordination measure and poor for the variability measure.
journal_name
J Biomechjournal_title
Journal of biomechanicsauthors
Raffalt PC,Nielsen LR,Madsen S,Højberg LM,Pingel J,Nielsen JB,Alkjær T,Wienecke Jdoi
10.1016/j.jbiomech.2018.03.045subject
Has Abstractpub_date
2018-05-17 00:00:00pages
168-176eissn
0021-9290issn
1873-2380pii
S0021-9290(18)30262-8journal_volume
73pub_type
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