2.4. Swallowing Muscle Exercise
mouth-opening
CONTRACTION, CONTRACTIONS
Swallowing exercises were performed five days a week for eight weeks, with mouth-opening training, cervical isometric contraction exercises, and Shaker exercises. For the mouth-opening training, three sets of 20 opening movements were performed at the maximum opening position. For the cervical isometric contraction exercise comprised 15 sets of 5 s contractions were performed. In the Shaker exercise, one set of 60 s of continuous head raising and 30 repetitions of head raising were performed.