Simplified musculoskeletal shoulder model based on a polynomial description

Musculoskeletal shoulder models have been used for many different applications. Up till now, these models have not been suited to operate in a real-time environment. This study uses the most cited and used musculoskeletal shoulder model in the field, Delft and Elbow and Shoulder Model (DESM), and changes the structure to make the model quicker....

The optimisation of the energy-related cost function for the Delft Shoulder & Elbow Model

For inverse-dynamic models cost functions account for the load sharing problem that arises when modelling the musculoskeletal system. This study focuses on the optimisation of the energy-related cost function integrated in the Delft Shoulder & Elbow Model and compares the translation of the obtained representation to results from in vitro...

Estimation of in-vivo muscle moment arms around the MCP joint using ultrasound

Since in the finger most muscle-tendons cross multiple joints, moment arms (MA’s) of these muscle-tendons have a major influence on the distribution of joint moments over these joints. This is crucial for finger balance and therefore finger functioning. Recent developments in the technique of ultrasonic measurements have made it possible to...

Predicting muscle forces in the shoulder by constraining the inverse optimisation with EMG and a forward muscle model

The Dutch Shoulder and Elbow Model (DSEM) is a musculoskeletal model of the shoulder that can be used to predict internal shoulder loading (muscle forces, joint reaction forces, etc.). The DSEM uses an inverse optimisation method to predict muscle forces from net joint moments. In this study two new modes are presented that constrain the inverse...

Muscle parameters for musculoskeletal modelling of the human neck

This study presents a consistent anatomical dataset, containing the musculoskeletal geometry (muscle attachment sites, fibre length, tendon length, bony landmarks) and muscle contraction parameters (physiological cross sectional area, optimal fibre length) of the complete neck musculature. A dissection experiment was performed on the left side...