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Physiological aspects of neuromuscular function.
Occupational ergonomics: theory and applications, second edition. Bhattacharya A, McGlothlin JD, eds. Boca Raton, FL: CRC Press, 2012 Mar; :87-102
The mechanical motions of the body segments necessary to accomplish a task are skillfully controlled by a myriad of neuromuscular components and a series of well-orchestrated neural events encompassing both the central and peripheral nervous systems. Some of these issues are discussed in the following sections of this chapter. The maintenance of ergonomically efficient posture requires the optimal orientation of various interconnected human body segments to produce minimal biomechanical loadings of the joints. The neural components of movements are the planning and programming 'Units and the performance units. Planning and programming are the functions of the precortical centers (cerebral cortex. bilateral movement). the basal ganglia. the cerebellum. and the thalamus. The premotor and sensory regions provide the input for planning to the basal ganglia and the cerebellum. The performance units include the motor cortex and spinal cord. with the smoothing function performed by the cerebellum. In order for a person to perform a motor act smoothly. all the somatosensory systems have to work in harmony to help provide "accurate" information regarding the position of body segments. muscle tensions. and joint motions to the higher centers.
Ergonomics; Posture; Nervous-system-disorders; Neuropathology; Neuromotor-system; Neuromuscular-function; Nerve-function; Muscle-physiology; Task-performance; Work-capability
Disease and Injury: Low Back Disorders
Occupational ergonomics: theory and applications, second edition
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division