๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Relativistic effects in single-joint voluntary movements

โœ Scribed by M. L. Latash; S. R. Gutman; G. L. Gottlieb

Book ID
104668737
Publisher
Springer-Verlag
Year
1991
Tongue
English
Weight
502 KB
Volume
65
Category
Article
ISSN
0340-1200

No coin nor oath required. For personal study only.

โœฆ Synopsis

We assume that there is an upper limit for the rate of change of controlled variables in the motor control system. Superposition of two single-joint motor programs can lead to a distortion of their simple algebraic summation similar to relativistic Lorenz transformations. Experiments were carried out with the subjects performing fast oscillatory elbow movements on the background of a smooth elbow flexion. Changes in the period of oscillations during the smooth movement were used as index of time transformations. Statistically 5%-7% changes in the period were observed for each of the subjects corresponding to the predictions of the model.

๐Ÿ“œ SIMILAR VOLUMES

Reconstruction of equilibrium trajectori
Reconstruction of equilibrium trajectories and joint stiffness patterns during single-joint voluntary movements under different instructions
โœ Mark L. Latash ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Springer-Verlag ๐ŸŒ English โš– 923 KB

A method for reconstructing joint compliant characteristics during voluntary movements was applied to the analysis of oscillatory and unidirectional elbow flexion movements. In different series, the subjects were given one of the following instructions: (1) do not intervene voluntarily; (2) keep the

Effects of gravitational forces on singl
Effects of gravitational forces on single joint arm movements in humans
โœ N. Virji-Babul; J. D. Cooke; S. H. Brown ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Springer-Verlag ๐ŸŒ English โš– 891 KB

We have examined the kinematics and muscle activation patterns of single joint elbow movements made in the vertical plane. Movements of different amplitudes were performed during a visual, step-tracking task. By adjusting shoulder position, both elbow flexion and extension movements were made under