MusculoGraphics, Inc.


For health care professionals, scientists, engineers, and animators, SIMM is a powerful tool kit that facilitates the construction, modeling, animation, and analysis of three-dimensional musculoskeletal systems. Unlike traditional animation and mechanical CAD packages, SIMM is specifically designed to work with systems that consist of bones, muscles, ligaments, and tendons.

In SIMM, a musculoskeletal model consists of a set of body segments that are connected by joints. The joints are modeled using detailed, accurate kinematic functions, or as simple pin or ball-and-socket joints. The model includes muscle-tendon actuators that span the joints and develop force, thus generating moments about the joints. SIMM is your only choice if you need to quickly create, analyze, edit, and display realistic musculoskeletal models.

neck side to side