Effects of long-term blindness on preparatory emg modulation in humans performing landing movements.

Autor: Magalhães FH; Neuroscience Program and Biomedical, Engineering Laboratory, EPUSP, University of São Paulo, Brazil. fhmagalhaes@leb.usp.br, Goroso DG
Jazyk: angličtina
Zdroj: Perceptual and motor skills [Percept Mot Skills] 2011 Oct; Vol. 113 (2), pp. 519-33.
DOI: 10.2466/06.15.25.PMS.113.5.519-533
Abstrakt: To investigate the long-term effect of blindness on the task of leaping down to a lower landing surface, five blind individuals were compared with 10 sighted individuals who performed landing movements with and without sight. Participants performed six consecutive drop-landings from four different heights, during which the prelanding modulation of EMG timing and amplitude in four lower-limb muscles were recorded. Analysis showed that blind individuals showed specific prelanding EMG modulation, suggesting that long-term dependence on somesthetic and vestibular cues leads to different preparatory measures for vertical falls.
Databáze: MEDLINE