Â鶹´«Ã½Ó³»­

Â鶹´«Ã½Ó³»­

Explore the latest content from across our publications
Join The Â鶹´«Ã½Ó³»­

Log In

Forgot Password?
Create New Account

Loading... please wait

Abstract Details

Trunk-pelvis coordination during gait in early de-novo parkinson’s disease
Movement Disorders
P12 - Poster Session 12 (12:00 PM-1:00 PM)
3-011
We described how trunk-pelvis coordination during gait is affected in Parkinson’s disease, especially in early de-novo patients to rule out effects of disease progression and dopaminergic drugs.
As previous reports showed, trunk-pelvis coordination is generally in-phase (when trunk and pelvis are moving in the same direction) at lower walking speeds with transition to anti-phase at higher speeds. This coordination of axial thorax and pelvis rotations during gait is known to be affected by several pathologies.
35 newly diagnosed drug-naïve PD patients and 18 controls were included. All participants walked with comfortable speed and 3D motion analysis was conducted. Mean coupling angles across walking trials were calculated using vector coding technique. They were classified into 4 coordination patterns; pelvis-dominant, trunk-dominant, in-phase and out-phase according to Needham et al (2014), and the proportion of each pattern in the gait cycle was compared between PD and control group.
Although walking speed did not differ between two groups, the proportion of out-phase pattern was less in PD (39.46%) than controls (50.89%) [p=0.004] and pelvis-dominant pattern was more in PD (22.51%) than controls (15.28%) [p=0.025]. When analyzing with consideration of walking velocity as covariate, UPDRS total score, bradykinesia and rigidity subscore were not significantly correlated with all patterns, but UPDRS postural instability gait disturbance (PIGD) subscore were positively correlated with proportion of out-phase pattern (r=0.454, p=0.007). However, there was no difference between the subtypes when comparing clinical subtypes by tremor-dominant (TD) and PIGD or TD and akinetic-arigid (AR).
Out-phase pattern is decreased within the gait cycle in early de-novo PD and it may be not contributed by rigidity or bradykinesia. Further research in advanced PD or in Parkinson-plus syndrome is needed to be explain our finding that out-phase pattern is more observed in PIGD subtype than TD subtype.
Authors/Disclosures

PRESENTER 		No disclosure on file
Seong-Ho Koh, MD, PhD (Hanyang University Hospital) No disclosure on file