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Huijing PA, Baan GC (2003) Myofascial force transmission: muscle relative position and length determine agonist and synergist muscle force. Huijing PA, Baan GC (2001b) Myofascial force transmission causes interaction between adjacent muscles and connective tissue: effects of blunt dissection and compartmental fasciotomy on length force characteristics of rat extensor digitorum longus muscle. Huijing PA, Baan GC (2001a) Extramuscular myofascial force transmission within the rat anterior tibial compartment: proximo-distal differences in muscle force. Hill AV (1938) The heat of shortening and the dynamic constants of muscle. Ergonomics 45:619–630įritz N, Schmidt C (1992) Contractile properties of single motor units in two multi-tendoned muscles of the cat distal forelimb. J Biomech 22:1209–1215įorde MS, Punnett L, Wegman DH (2002) Pathomechanisms of work-related musculoskeletal disorders: conceptual issues.
#H FORCE TRANSMISSION SERIES#
J Physiol 398:211–231Įttema GJC, Huijing PA (1989) Properties of the tendinous structures and series elastic component of EDL muscle-tendon complex of the rat. Scand J Work Environ Health 19:73–84īalice-Gordon RJ, Thompson WJ (1988) The organization and development of compartmentalized innervation in rat extensor digitorum longus muscle. Thus, also in dynamic muscle conditions, muscle fiber force is transmitted via myofascial pathways.Īrmstrong TJ, Buckle P, Fine LJ, Hagberg M, Jonsson B, Kilbom A, Kuorinka IA, Silverstein BA, Sjogaard G, Viikari-Juntura ER (1993) A conceptual model for work-related neck and upper-limb musculoskeletal disorders.
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These results are explained in terms of force transmission between the muscle belly of EDL III and adjacent tissues. No effects on TA+EHL force could be shown. In contrast, changes in proximal EDL force were much smaller: from 2.44 (0.25) N to 1.99 (0.19) N. Isokinetic shortening of EDL III caused high changes in EDL III force from 0.97 (0.15) N to zero. Therefore, a substantial fraction of this force must originate from sources other than muscle fibers of EDL III. Maximal concentric force exerted at the distal tendon of EDL III was higher than maximal isometric force expected on the basis of the physiological cross-sectional area of EDL III muscle fibers (Maas et al. In contrast, hardly any changes in proximal EDL force and distal TA+EHL force were found. Sinusoidal shortening of EDL III caused a decrease in force exerted at the distal tendon of EDL III: from 0.58 (0.08) N to 0.26 (0.04) N. Two types of distal shortening of EDL III were studied: (1) sinusoidal shortening (2 mm) and (2) isokinetic shortening (8 mm). Force was measured simultaneously at the distal EDL III tendon, the proximal EDL tendon and the distal tendons of tibialis anterior and extensor hallucis longus muscles (TA+EHL). The anterior crural compartment was left intact. This study investigated the effects of myofascial force transmission during dynamic shortening of head III of rat extensor digitorum longus muscle (EDL III).