Quantification of trunk rotations during turning and walking in Parkinson's disease.
until further notice
SourceClinical Neurophysiology, 118, 7, (2007), pp. 1602-6
Article / Letter to editor
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Donders Centre for Cognitive Neuroimaging
SubjectDCN 1: Perception and Action; DCN 2: Functional Neurogenomics; EBP 4: Quality of Care; NCEBP 10: Human Movement & Fatigue; NCEBP 6:Quality of nursing and allied health care; UMCN 3.2: Cognitive neurosciences
OBJECTIVE: To develop a reliable, objective and sensitive measure of axial trunk rotations in PD, which can be applied in an ambulatory setting. METHODS: To quantify turning motion, two angular velocity transducers attached to the lower back measured angular velocity of the trunk in the yaw plane (i.e., around the longitudinal axis) and the roll plane (i.e., medio-lateral movements) in freely moving subjects who were instructed to walk and make various types of turning movements. RESULTS: Turn duration was longer in PD patients compared to controls. Peak yaw and peak roll angular velocities were lower in PD patients compared to controls during all turning tasks. CONCLUSIONS: This new approach to measure trunk sway during a simple turning task might serve as an instrument to objectively quantify turning while walking in PD. SIGNIFICANCE: It proves difficult to objectively assess turning performance based upon history taking or clinical examination alone. Objective and easy measurement of axial turning in PD might be used for clinical evaluation, but also in a domestic setting as outcome measure in intervention studies. Further research should focus on the clinical relevance of the new quantitative approach described in this paper, e.g., to detect freezing of gait episodes.
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