Related Experiment Video
Updated: Oct 4, 2026

Evaluating Flight Performance and Eye Movement Patterns Using Virtual Reality Flight Simulator
Published on: May 19, 2023
Arm tremor and precision of hand force control in a short and long term flight on the MIR-Space-Station
E Gallasch1, I Kozlovskaya, W N Loscher
1University of Graz, Department of Physiology, Austria.
Abstract:
To determine whether long and short time exposure of man in 0g alters normal physiological tremor patterns we recorded arm tremor using an accelerometer as well as hand forces and tremor during constant isometric contraction using a load cell. Arm tremor was decreased during both flights in amplitude and frequency. Shortly after the long term flight arm tremor amplitude was increased, indicating adaptive changes in the tonic reflex loop. Isometric hand tremor remained unchanged during the long and short time flight demonstrating that the contractile properties of hand muscles remained constant. Precision of hand force was decreased until the half duration of the long term flight.
Related Concept Videos
Rocket Propulsion in Empty Space - I
Rocket Propulsion in Gravitational Field - II
A rocket's acceleration depends on three major factors, consistent with the equation for the...
Rocket Propulsion in Gravitational Field - I
The motion of a rocket in space changes its velocity (and hence its...
Rocket Propulsion In Empty Space - II
Gyroscope
Muscles of the Forearm that Move the Hand and Fingers
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi radialis,...

