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The Human Phenotype Ontology (HPO) is downloaded weekly from The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at

Term:Type 1 muscle fiber predominance
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Accession:HP:0003803 term browser browse the term
Definition:An abnormal predominance of type I muscle fibers (in general, this feature can only be observed on muscle biopsy).
Comment:This finding is demonstrated by muscle biopsy.
Synonyms:exact_synonym: Type 1 muscle fibre predominance;   Type I muscle fiber predominance;   Type I muscle fibre predominance
 alt_id: HP:0003721;   HP:0003807
 xref: UMLS:C1854387

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Path 1
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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the musculoskeletal system 0
        Abnormality of the musculature 0
          Abnormal skeletal muscle morphology 0
            Abnormal muscle fiber morphology 0
              Abnormal muscle fiber-type distribution 0
                Type 1 muscle fiber predominance 0
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