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Axial rotation in Parkinson's disease
M Vaugoyeau1, F Viallet, R Aurenty
1CNRS Groupe Développement et Pathologie de l'Action, UMR 6196, CNRS, 31 Chemin J Aiguier, 13402 Marseille Cedex 20, France. vaugoyau@dpm.cnrs-mrs.fr
Journal of Neurology, Neurosurgery, and Psychiatry
|April 1, 2006
Summary
Patients with Parkinson's disease exhibit impaired body rotation, particularly in shoulder and pelvis coordination, which is not solely due to general slowness. This affects their balance and movement control.
Area of Science:
- Neurology
- Biomechanics
- Movement Science
Background:
- Parkinson's disease (PD) is a neurodegenerative disorder affecting motor control.
- Impaired body rotation can significantly impact gait and increase fall risk in PD patients.
- Understanding specific motor deficits is crucial for developing targeted interventions.
Purpose of the Study:
- To investigate body rotation ability in patients with Parkinson's disease.
- To determine if specific body segments are more affected during rotation.
- To assess the relationship between rotation impairment and general motor slowness in PD.
Main Methods:
- Kinematic data were collected during gait initiation in 10 advanced PD patients and 5 controls.
- Temporal organization of body rotation was analyzed, focusing on segment rotation onset latency.
- Locomotor variables were also assessed to correlate with rotation deficits.
Main Results:
- Patients with Parkinson's disease demonstrated delayed onset of body segment rotation compared to controls.
- A distinct uncoupling was observed in the onset of shoulder and pelvis rotation in PD patients.
- The observed rotation impairment is not solely attributable to the general slowness of movement in PD.
Conclusions:
- Parkinson's disease patients exhibit impaired posturo-kinetic coordination.
- There is a reduced capacity to generate appropriate ground reaction forces for pelvic orientation in PD.
- These findings highlight specific rotational deficits contributing to motor dysfunction in Parkinson's disease.
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