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Functional Anatomy and Biomechanics
Published in Emeric Arus, Biomechanics of Human Motion, 2017
Musculus gluteus maximus is the most superficial and the most voluminous muscle of the pelvis and at the same time is one of the most powerful muscles of the human body. The bulk of the entire muscle is formed with thick fasciculi which run parallel to and are divided by aponeuroses. Insertion: The origin has three distinctive segments. 1. The gluteal portion is on the superior and posterior surface of the ilium 2. Sacrotuberous ligament which is related to sacrum and coccyx 3. Thoracolombar fascia. Distal insertion on the gluteal tuberosity of the femur then goes down through the iliotobial tract and continues to the lateral condyle of the tibia.
Development of a flexible instrumented lumbar spine finite element model and comparison with in-vitro experiments
Published in Computer Methods in Biomechanics and Biomedical Engineering, 2022
Aleksander Leszczynski, Frank Meyer, Yann-Philippe Charles, Caroline Deck, Rémy Willinger
The five major ligaments around the pelvis were also modeled: Anterior Sacroiliac Ligament (ASL), Posterior Sacroiliac Ligament (PSL), Interosseous Ligament (IOL), Sacrospinous Ligament (SS) and Sacrotuberous Ligament (ST). Pelvic ligaments were meshed as spring elements (Figure 3b).
Training-induced changes in anterior pelvic tilt: potential implications for hamstring strain injuries management
Published in Journal of Sports Sciences, 2021
Jurdan Mendiguchia, Angel Gonzalez De la Flor, Alberto Mendez-Villanueva, Jean-Benoît Morin, Pascal Edouard, Mirian Aranzazu Garrues
Although hamstring injuries occur unilaterally during sprinting, the fact that the two limbs interact anatomically and biomechanically via their “attachment” to the pelvis makes inevitable to consider this structure as key element in the sprint-related hamstring injury holistic scheme. In addition, BF is the only hamstring muscle anatomically linked to the ischial tuberosity with connections to the sacrotuberous ligament (Pérez-Bellmunt et al., 2015; Woodley & Mercer, 2005). Hence, all other things being equal, an increase in pelvic tilt derived from an increased tension on the iliopsoas, results in greater BF moment arm and length change as a consequence of the induced relative hip flexion (Chumanov et al., 2007; Franz et al., 2009; Visser et al., 1990). The compensation for the increased stride length necessary during stance phase from walking to running performance seems also to occur at the pelvis (more anteverted) and presumably lumbar lordosis (increased) rather than at the hip motion, being greater in those that displayed reduced peak hip extension (Franz et al., 2009). In this regard, Nagahara et al. (Nagahara et al., 2018) recently showed that a greater running speed was related with an overall greater anterior pelvic tilt (APT) in 12 male sprinters. During sprinting, a greater pelvic anteversion and trunk flexion together with a greater elongation of the BF myotendinous junction have been shown during both the late stance and late swing phase (Higashihara et al., 2015). This might, at least partially, explain the different injury rates of hamstring injury between sports and greater degrees in lordosis and APT described between football, rugby or sprint athletes compared with cycling, judo or swimming specialists (Bloomfield, 1998; Edouard et al., 2016; Kritz & Cronin, 2008; Watson, 1993; Wodecki et al., 2002). In summary, all other things equal, a greater APT would increase the lengthening demand on hamstrings due to the greater moment arm (anterior iliac spine closer to thigh) generated, but at the same time, it is also an essential requisite for sprinting, allowing leg interaction and compensating for the lack of increase of hip extension change needed to achieve high velocities (Nagahara et al., 2018). The aforementioned arguments may explain the association found between APT and hamstring injury risk in both prospective and retrospective studies (Chaudhari et al., 2014; Daly et al., 2016; Schuermans et al., 2017).