Trend change analysis of postural balance in Parkinson's disease discriminates between medication state.
Piotr Wodarski, Jacek Jurkojć, Marta Chmura and 6 others
PMID 38943208WHAT IT FOUND
Trend change analysis detected differences between medication states in Parkinson's disease that standard sway measures missed.
However, neither method distinguished patients from healthy controls during quiet standing.
Key findings
01Trend change analysis indices differed significantly between the on and off medication states.
02Conventional sway parameters and trend change analysis failed to distinguish persons with Parkinson's disease from healthy controls.
03Sensor position significantly affected measured sway parameters, with the head showing larger motions than the sternum or pelvis.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
Only seven patients were tested in both on and off medication states, limiting the reliability of the medication comparison. The 10-second quiet standing task may be too easy to reveal subtle balance deficits in Parkinson's disease. The study is a secondary analysis of existing data, not a primary trial designed specifically for these outcomes. Exclusion criteria removed individuals with high fall risk or cognitive impairment, so results may not apply to more severely affected patients.
Declared interests
The study was funded by the Universitätsklinikum Schleswig-Holstein - Campus Kiel. No commercial conflicts of interest are reported.
The easy way to misread this
Do not interpret the significant differences in trend change analysis as evidence that this method diagnoses Parkinson's disease or predicts falls. The analysis failed to distinguish patients from healthy controls, and the medication effect was seen in only seven participants, making it a hypothesis-generating finding rather than a clinical tool.