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首页> 外文期刊>The Journal of Experimental Biology >Extramuscular myofascial force transmission for in situ rat medial gastrocnemius and plantaris muscles in progressive stages of dissection
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Extramuscular myofascial force transmission for in situ rat medial gastrocnemius and plantaris muscles in progressive stages of dissection

机译：肌内筋膜肌力传递在解剖进行阶段的原位大鼠内侧腓肠肌和plant肌

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摘要

The aim of this study was to establish the extent of extramuscular myofascial force transmission for dissected rat medial gastrocnemius (GM) and plantaris (PL) muscles. Initially, this was done with GM still connected to extramuscular connective tissue (general fascia, neuro-vascular tract and compartmental fascia). Neighbouring muscles were also connected to these tissues. In a later stage, it was dissected progressively until finally a fully dissected in situ GM was obtained, for which the neuro-vascular tract (i.e. the nerves, bloodvessels and the surrounding connective tissue) was the only extramuscular tissue left intact. Force of GM was measured not only at its distal tendon in progressive stages of dissection, but also at its dissected proximal tendon. In the stage where GM was still connected to extramuscular tissues, the experiments showed that up to 40.5 +/- 5.9% (mean S.E.M.) of the force exerted by the neighbouring PL muscle was transmitted onto the calcaneal bone, even when the PL tendon was not connected to this bone. After distal PL-tenotomy, a difference between proximally and distally measured forces of GM constituted evidence for myofascial force transmission. In the fully dissected in situ GM muscle, no relevant myofascial force transmission occurred in the reference position (the position of the GM origin corresponding to a knee angle of 120degrees). However, some myofascial force transmission occurred when the relative position of the origin of the fully dissected GM muscle was changed with respect to the neuro-vascular tract.
机译：这项研究的目的是确定解剖的大鼠内侧腓肠肌（GM）和plant肌（PL）肌肉的肌筋膜外力传递的程度。最初，这是在GM仍连接到肌外结缔组织（普通筋膜，神经血管束和室筋膜）的情况下完成的。相邻的肌肉也连接到这些组织。在随后的阶段中，将其逐步解剖直至最终获得完全解剖的原位GM，为此，神经血管束（即神经，血管和周围的结缔组织）是唯一完整的肌外组织。 GM的力不仅在解剖的进展阶段在其远端肌腱处测量，而且还在其近端肌腱处测量。在GM仍与肌外组织相连的阶段，实验表明，即使PL肌腱被击穿，相邻PL肌肉施加的力中也有高达40.5 +/- 5.9％（平均SEM）传递到跟骨上。没有连接到这个骨头。在远端PL截骨术后，GM的近端和远端测量力之间的差异构成了肌筋膜力传递的证据。在完全解剖的原位GM肌肉中，在参考位置（GM原点的位置对应于120度膝角）没有发生相关的肌筋膜力传递。但是，当完全解剖的GM肌肉的起源相对于神经血管束的相对位置发生变化时，会发生一些肌筋膜力量传递。

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