Dynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture.

ABSTRACT: Computational human body models (HBMs) of drivers for pre-crash simulations need active shoulder muscle control, and volunteer data are lacking. The goal of this paper was to build shoulder muscle dynamic spatial tuning patterns, with a secondary focus to present shoulder kinematic evaluation data. 8M and 9F volunteers sat in a driver posture, with their torso restrained, and were exposed to upper arm dynamic perturbations in eight directions perpendicular to the humerus. A dropping 8-kg weight connected to the elbow through pulleys applied the loads; the exact timing and direction were unknown. Activity in 11 shoulder muscles was measured using surface electrodes, and upper arm kinematics were measured with three cameras. We found directionally specific muscle activity and presented dynam

SUBMITTER: Fice JB 

PROVIDER: S-EPMC8652075 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature