Continuous involuntary sustained muscle contraction. When an affected muscle is passively stretched, the degree of resistance remains constant regardless of the rate at which the muscle is stretched. This feature helps to distinguish rigidity from muscle spasticity. (Human Phenotype Ontology, HP_0002063)
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31 genes co-occuring with the biological term rigidity in literature-supported statements describing functions of genes from the GeneRIF Biological Term Annotations dataset.