Thoroughbred Forelimb Dynamics
Research of Mike Swanstrom
In order to more fully understand the mechanisms for injury in the Thoroughbred
distal forelimb during the stance phase of gallop, a dynamic computer simulation
of the musculoskeletal structures in the forelimb is being generated. The
musculoskeletal modeling of the forelimb is done on SIMM® (Software
for Interactive Musculoskeletal Modeling) and the dynamics are performed
using SD-Fast® dynamics software. The model accounts for kinematics
of the joints in the forelimb, active and passive muscle-tendon forces,
passive ligament forces, inertia properties of the forelimb segments, and
externally applied forces and motions (i.e. ground reaction force). A working
simulation will provide valuable insights into possible measures for preventing
equine lameness associated with distal forelimb injuries.