Biomechanics of forearm rotation: force and efficiency of pronator teres.

ABSTRACT: Biomechanical models are useful to assess the effect of muscular forces on bone structure. Using skeletal remains, we analyze pronator teres rotational efficiency and its force components throughout the entire flexion-extension and pronation-supination ranges by means of a new biomechanical model and 3D imaging techniques, and we explore the relationship between these parameters and skeletal structure. The results show that maximal efficiency is the highest in full elbow flexion and is close to forearm neutral position for each elbow angle. The vertical component of pronator teres force is the highest among all components and is greater in pronation and elbow extension. The radial component becomes negative in pronation and reaches lower values as the elbow flexes. Both components could en

SUBMITTER: Ibanez-Gimeno P 

PROVIDER: S-EPMC3938685 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature