Assertion: crouch's action | /r/CapableOf | serve to preload muscle
Facets:
value: isometrically
type: MANNER
Source sentences:
text: The referee gives the command crouch and the opposing front rows then crouch; as well as allowing the front rows to interlock with one another, this crouching action also serves to isometrically preload the muscles, enabling the subsequent drive to be performed more powerfully.