Article

Post-stoke gait disorders could cause secondary musculoskeletal
complications associated with excessive repetitive loading.
The study objectives
were to 1) determine the feasibility of measuring common proxies for dynamic
medial knee joint loading during gait post-stroke with external knee adduction
(KAM) and flexion moments (KFM) and 2) characterize knee loading and typical
load-reducing compensations post-stroke. METHODS: Participants with stroke (n=9)
and healthy individuals (n=17) underwent 3D gait analysis.
The stroke and healthy
groups were compared with unpaired t-tests on peak KAM and peak KFM and on
typical medial knee joint load-reducing compensations; toe out and trunk lean.
The relationship between KAM and load-reducing compensations in the stroke group
were investigated with Spearman correlations. RESULTS: Mean (SD) values for KAM
and KFM in the healthy group[KAM=2.20 (0.88)%BW*ht; KFM=0.64 (0.60)%BW*ht] were
not significantly different from the values for the paretic [KAM=2.64
(0.98)%BW*ht; KFM=1.26 (1.13)%BW*ht] or non-paretic leg of the stroke
group[KAM=2.23(0.62)%BW*ht; KFM=1.10 (1.20)%BW*ht]. Post hoc one sample t-tests
revealed greater loading in stroke participants on the paretic (n=3), non-paretic
(n=1) and both legs (n=2) compared to the healthy group. The angle of trunk lean
and the angle of toe out were not related to KAM in the stroke group. DISCUSSION:
Measurement of limb loading during a gait post-stroke is feasible and revealed
excessive loading in individuals with mild to moderate stroke compared to healthy
adults. Further investigation of potential joint degeneration and pain due to
repetitive excessive loading associated with post-stroke gait is warranted.
CI - Copyright (c) 2016 Elsevier B.V. All rights reserved.

Langue : ANGLAIS