That is, while the basal ganglia are strongly involved in changing movement set, they are not involved in maintaining a fixed posture (Cools et al., 1984; Hayes et al., 1998; Helmich et al., 2009).
We used H2O PET to measure normalized regional cerebral blood flow during three tasks in which participants rested, held a fixed posture or undertook paced ankle movements of their right leg (which was affected in all patients).
At a fixed posture, stiffness can be regulated through changes in muscle activation.
Adaptive controls are derived for mobile robots, using backstepping technique, for tracking of a reference trajectory and stabilization to a fixed posture.
The gimbal was instrumented with potentiometers that were used to provide subjects with visual feedback of arm posture so that a fixed posture could be maintained throughout each trial.
In any case, their fixed posture reminded me of a phrase from Robert Bresson's "Notes on Cinematography," translated by Jonathan Griffin: Uniformity and unity of life bring out the nature and character of soldiers.
In reality, the neutral-appearing position of the hand indicates a fixed supination posture of the forearm in the face of a medial rotation contracture of the shoulder.
The abdomens of maternal rats and chests of adult rats were shaved, and rats were placed on a plant apparatus with fixed posture.
In the laboratory measurement, the participants were instructed to follow a strict activity and posture protocol in a fixed setting.
While dystonia of the lower limb can arise from organic neurological disease (McKeon et al., 2008), a fixed immobile posture first arising in adulthood without clinical or laboratory evidence for organic disease is a characteristic presentation of psychogenic dystonia (Lang, 1995; Schrag et al., 2004; Hinson and Haren, 2006; Gupta and Lang, 2009; Ibrahim et al., 2009; Hallett, 2010).
