Article

The purpose of this study was to compare pelvis-trunk coordination
and coordination variability over a range of walking and running speeds between
three groups of runners; runners with low to moderate low back pain; runners who
had recovered from a single bout of acute low back pain; and runners who had
never experienced any symptoms of low back pain. METHODS: Pelvis and trunk
kinematic data were collected as speed was systematically increased on a
treadmill. Coordination between pelvis and trunk in all three planes of motion
was measured using continuous relative phase, and coordination variability was
defined as the standard deviation of this measure. FINDINGS: Oswestry Disability
Index indicated the low back pain group was high functioning (mean 7.9% out of
100%). During walking, frontal plane coordination was more in-phase for the low
back pain group compared to controls (P=0.029), with the resolved group showing
an intermediate coordination pattern (P=0.064). During running, both low back
pain (P=0.021) and resolved (P=0.025) groups showed more in-phase coordination in
the transverse plane than the control group. The low back pain group also showed
reduced transverse plane coordination variability compared to controls (P=0.022).
INTERPRETATION: Coordination and coordination variability results showed a
continuum of responses between our three groups. Taken together, the data lend
insight into increased injury risk and performance deficits associated with even
one bout of low back pain, and suggest that clinicians need to look beyond the
resolution of pain when prescribing rehabilitation for low back pain.
CI - Copyright (c) 2010. Published by Elsevier Ltd.

Langue : ANGLAIS