( ( TO ORDER ) ( ( Typically ( ( the rotator ) ( ( ( cuff ( muscles ( are weak ) ) ) and ) ( ( require ( ( a ( ( much lighter ) resistance ) ) ( than ( other ( muscle groups ) ) ) ) ) ( to ( effectively ( perform ( the exercises ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP TO) (NNP ORDER)) (VP (VBZ Typically) (S (NP (DT the) (NN rotator)) (VP (VP (VB cuff) (SBAR (S (NP (NNS muscles)) (VP (VBP are) (ADJP (JJ weak)))))) (CC and) (VP (VB require) (NP (NP (DT a) (ADJP (RB much) (JJR lighter)) (NN resistance)) (PP (IN than) (NP (JJ other) (NN muscle) (NNS groups)))) (S (VP (TO to) (VP (ADVP (RB effectively)) (VB perform) (NP (DT the) (NNS exercises))))))))) (. .)))
TO ORDER Typically the rotator cuff muscles are weak and require a much lighter resistance than other muscle groups to effectively perform the exercises.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (VP (VBG performing) (NP (JJ anaerobic) (NN exercise))))) (, ,) (NP (PRP$ your) (NNS muscles)) (VP (VBP work) (PP (IN against) (NP (NN resistance)))) (. .)))