Maintenance of low isometric forces during prehensile grasping.
A specially designed microcomputer-controlled force measurement system was tested in 24 normal adults. The task was to maintain a prescribed low isometric grip-force (2.5 Newton) under different visual feedback conditions. The performance variability across subjects and conditions was surprisingly low. Normal adults can maintain low isometric forces with great accuracy. No left/right hand differences could be found in the subjects investigated. These results seem to qualify our procedure for the clinical examination of neurologically impaired patients.
D000328:Adult; D001676:Biofeedback, Psychology; D005260:Female; D006801:Humans; D007537:Isometric Contraction; D008297:Male; D008838:Microcomputers; D008875:Middle Aged; D009048:Motor Skills / Q000502:physiology*; D009119:Muscle Contraction; D009484:Neuropsychology / Q000295:instrumentation*; D014159:Transducers