Sentences with phrase «trapezius fascicles»
In contrast, O'Sullivan et al. (2009) measured the trapezius fascicles using magnetic resonance imaging (MRI) and found that the muscle thickness ranged between 3.8 — 15.4 mm depending on the muscle region and the part of the muscle being measured.
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Due to the shape of the trapezius muscle a more precise measure is to describe cross-sectional area of the muscle by region or by the origin of the fascicle.
The fascicles of the trapezius originate on the vertebrae or at the highest levels, including the intermuscular septum that spans from the back of the head (occipital protuberance) to the seventh cervical vertabrae.
It appears that the fascicle length of the trapezius in the fibers inserting on the clavicle and acromion range between 62 — 104 mm and 65 — 125 mm, respectively (Kamibayashi et al. 1998).
Johnson et al. (1996) compared the fascicles of the trapezius with origins at the cervical (C3 - 6) and upper (T1) and lower (T5) thoracic vertabrae and reported that the PCSA was 2.3, 1.9 and 0.6 mm2, respectively.