1. Date of download: 10/5/2017
Copyright © ASME. All rights reserved.
From: A Musculoskeletal Model of the Equine Forelimb for Determining Surface Stresses and Strains in the Humerus—Part I. Mathematical Modeling
J Biomech Eng. 2008;130(4): doi: /
Figure Legend:
Lateral CT scan of the scapula, humerus, radius, and ulna embedded with metallic markers to represent muscle origins and insertions, contact points, and other important locations. (X,Y,Z) represent the global CT coordinate system while (x,y,z) represent the local humeral coordinate system. The x axis was defined distal to proximal, the y axis was caudal to cranial, and the z axis was lateral to medial.

2. Date of download: 10/5/2017
Copyright © ASME. All rights reserved.
From: A Musculoskeletal Model of the Equine Forelimb for Determining Surface Stresses and Strains in the Humerus—Part I. Mathematical Modeling
J Biomech Eng. 2008;130(4): doi: /
Figure Legend:
Two-dimensional free body diagram of the equine humerus including forces due to muscles, bone-on-bone contact, and muscle wrapping contact, and transverse cross sections of the humerus corresponding to the bone graft donor site, stress fracture site, and middle of the diaphysis. Only muscles proximal to the middle of the diaphysis of the humerus and active during the middle of the stance phase of walking were used in the optimization procedure.  * Active muscles during the middle of stance phase of walking as indicated by EMG data.  ** Muscle for which no EMG data were available.

3. Date of download: 10/5/2017
Copyright © ASME. All rights reserved.
From: A Musculoskeletal Model of the Equine Forelimb for Determining Surface Stresses and Strains in the Humerus—Part I. Mathematical Modeling
J Biomech Eng. 2008;130(4): doi: /
Figure Legend:
Simplified musculoskeletal preparation for the biceps brachii only model used to calculate the biceps contact force. The large arrow on the scapula indicates the weight of the trunk of the horse (reprinted with permission and biceps contact force added).

4. Date of download: 10/5/2017
Copyright © ASME. All rights reserved.
From: A Musculoskeletal Model of the Equine Forelimb for Determining Surface Stresses and Strains in the Humerus—Part I. Mathematical Modeling
J Biomech Eng. 2008;130(4): doi: /
Figure Legend:
Intersegmental force (F¯e) and couple (C¯e) vectors, and contact forces due to the biceps brachii muscle and the scapula exerted on the proximal humerus

5. Date of download: 10/5/2017
Copyright © ASME. All rights reserved.
From: A Musculoskeletal Model of the Equine Forelimb for Determining Surface Stresses and Strains in the Humerus—Part I. Mathematical Modeling
J Biomech Eng. 2008;130(4): doi: /
Figure Legend:
Transverse cross section of a right humerus at the level of the bone graft donor site viewed from the bottom in the direction of the positive x axis. The positive torsional moment (Mx) and the bending moments (My and Mz) are labeled at the centroid of the cross section, and the shaded region represents cortical bone.