Paula Heidkamp, Kati Hiltrop, Clara Breidenbach, Christoph Kowalski, Holger Pfaff, Franziska Geiser, Nicole Ernstmann
Coping with breast cancer during medical and occupational rehabilitation: a qualitative study of strategies and contextual factors
BMC women's health
motor hand skill associated dexterity important meeting challenges daily activity important resource poststroke context present study investigated finger movements righthanded subjects tactile manipulation cuboid prototypical task underlying tactile exploration one motor act thumb fingers one hand surround cuboid continuous regular manner object moved guiding thumb opposed supporting fingers replaced reach joint limits free fingers mechanism termed finger gaiting hands 22 subjects acquired time series consecutive manipulations cuboid frequency 1 hz using digital data glove consisting 29 sensors using principle component analysis decomposed short action motor patterns related successive manipulations cuboid components purport represent changing grasp configurations involving stabilizing fingers guiding thumb temporal features components permits testing whether distinct configurations occur frequency 1 hz ie within time window 1 thus taxonomic classification manipulation finger gaiting fraction variance described principal components indicated three components described salient features single motor acts hand striking finger patterns prominent varying roles mcp pip joints fingers cmc joint thumb important aspect three components representation distinct finger configurations within motor act principal component graph theory analysis confirmed modular functionally synchronous action involved joints computation finger trajectories one subject illustrated workspace task differed right left hands task one complex motor act 1 duration could described three elementary hierarchically ordered grasp configurations occurring prescribed frequency 1 hz therefore configurations represent finger gaiting described artificial systems principal mechanism underlying prototypical task clinicaltrialsgov nct02865642 registered 12 august 2016