View Full Version : type I & II fibers ED, FDS

Gijs Bloemsaat
11-20-2003, 10:55 PM
Dear BIOMCH-L browsers,

I have a question regarding the human extensor digitorum and flexor
digitorum superficialis muscle. Are there differences known between these
two muscles with respect to the % of type I & type II fibers?
I am looking at the timing of these contractions by means of sEMG in a
continuous typing task, and systematically observe that the duration of FDS
activation decreases with increasing tempo (2.25, 3 & 4.5 Hz). The duration
of ED activity however, only slowly decreases with increasing rate of
finger tapping. So, differences in the distribution of the fibers might
give more insight.

Kind regards,
Gijs Bloemsaat

+ Gijs Bloemsaat
+ Dept. of Experimental Psychology, Motor Control
+ Nijmegen Institute for Cognition and Information
+ University of Nijmegen
+ P.O. Box 9104, 6500 HE Nijmegen
+ tel: +31 243612758 fax: +31 243616066
+ e-mail: Bloemsaat@nici.kun.nl Homepage: www.nici.kun.nl/~gijsb

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