Identification of forearm skin zones with similar muscle activation patterns during activities of daily living.
Néstor J Jarque-Bou, Margarita Vergara, Joaquín L Sancho-Bru and 2 others
PMID 30373606WHAT IT FOUND
Forearm skin zones with similar muscle electrical activity patterns were identified during hand tasks.
Seven zones may represent forearm activity in simulated daily tasks. Six healthy subjects only.
Key findings
01The analysis identified seven clusters of forearm spots.
02The simulated daily tasks were repeatable overall, with mean confidence interval values of 3.33% of muscular activity and standard deviation values of 2.22%.
03Spots 18 and 28 showed low muscle activity, reaching less than 5% of RMS of the muscular activity.
STILL TO COME
How it was doneWhat they foundWhat it means for OTs
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What it does not show
Only six healthy able-bodied people were studied, and the paper says the results could be verified in further studies with more subjects and impaired subjects. The study used simulated activities from a hand function test, not real patient outcomes. The procedure required five sessions to record all 30 spots with the available 8-channel device. The paper says other groupings are possible depending on dendrogram distances.
Declared interests
The supplied text names a funder: Ministerio de Economía, Industria y Competitividad, Gobierno de España. It does not include a conflicts of interest statement.
The easy way to misread this
Do not conclude that seven forearm electrodes are proven to improve patient assessment. The study only identified similar activation zones in six healthy subjects during simulated tasks, and it did not test patients or treatment outcomes.