Assertion: shoulder's muscle | /r/HasProperty | weak
Facets:
Source sentences:
text: Although the shoulder is naturally mobile, this natural mobility can lead to future injury if the right muscles surrounding the shoulder joint are too weak.
text: If one muscle of the four is tight or weak, the others have to compensate—creating an imbalance, which can lead to strains and tears in the rotator cuff and compromise the stability of the shoulder joint.