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+(old-leg-model)=
+
+# The “Leg” Model
+
+The “Leg” model was the first leg model to enter the AnyBody model
+repository. It includes the pelvis, thigh, shank and a one segment foot.
+The hip joint is modeled as a spherical joint, while the knee and ankle
+are modeled as hinges. The “Leg” model is equipped with only **35 muscles
+elements**, which makes it a far simpler model than the LegTLEM.
+
+```{raw} html
+<video width="45%" style="display:block; margin: 0 auto;" controls autoplay loop>
+    <source src="../_static/Leg_rotating_model.mp4" type="video/mp4">
+Your browser does not support the video tag.
+</video>
+```
+
+Thanks to *Mark Thompson*, Lund University Hospital, for his help in
+developing the lower extremity model. A couple of muscles with broad
+insertions (like the m. gluteus maximus) are divided into multiple
+individual muscle units to represent the real geometry and the
+mechanical actions of the muscle.
+
+The parameters of these muscles are mainly based on the data published
+by Delp and Maganaris
+
+```{rubric} References:
+```
+
+- 19. Delp, Parameters for the lower limb, <https://isbweb.org/data/delp/>
+- Maganaris, C. N. In vivo measurement-based estimations of the moment
+  arm in the human tibialis anterior muscle-tendon unit. Journal of
+  Biomechanics, Vol. 33, pp. 375-379, 2000
+- Dostal, W. F. and J. G. Andrews. A three-dimensional biomechanical
+  model of hip musculature. Journal of Biomechanics, Vol. 14, pp.
+  803-812, 1981.
+- Herzog, W. and L. J. Read. Lines of action and moment arms of the
+  major force-carrying structures crossing the human knee joint.
+  Journal of Anatomy. Vol. 182:, pp. 213-230, 1993.
+- Hintermann, B., B. M. Nigg, and C. Sommer. Foot movement and tendon
+  excursion: an in vitro study. Foot & Ankle International, Vol. 15,
+  pp. 386-395, 1994