A mathematical model of force transmission from intrafascicularly terminating muscle fibers

Publication year: 2011
Source: Journal of Biomechanics, In Press, Corrected Proof, Available online 14 June 2011

Bahar, Sharafi , Silvia S., Blemker

Many long skeletal muscles are comprised of fibers that terminate intrafascicularly. Force from terminating fibers can be transmitted through shear within the endomysium that surrounds fibers or through tension within the endomysium that extends from fibers to the tendon; however, it is unclear which pathway dominates in force transmission from terminating fibers. The purpose of this work was to develop mathematical models to (i) compare the efficacy of lateral (through shear) and longitudinal (through tension) force transmission in intrafascicularly terminating fibers, and (ii) determine how force transmission is affected by variations in the structure and properties of fibers and the…