Assertion: muscle fiber's muscle | /r/CapableOf | degrade glycogen
Facets:
value: on exertion
type: TEMPORAL
value: to lactic acid
type: TRANSITIVE-OBJECT
Source sentences:
text: The best-known glycogen-storage disease affecting muscles is McArdle disease, in which the muscles are unable to degrade glycogen to lactic acid on exertion because of the absence of the enzyme phosphorylase.