Deformable muscle models for motion simulation

This paper presents a methodology for interactive muscle simulation. The fibres of individual muscles are represented by particles connected by springs, thus creating a deformable model of the muscle. In order to be able to describe human musculoskeletal system, contact between pairs of muscles as well as muscles and bones must be accounted for. Therefore, collision detection and response mechanism which allows both types of contact (soft body vs. rigid body and soft vs. soft body) is presented. The solution is a part of a project dedicated to improvement of the effectiveness of osteoporosis prediction and treatment.