High-speed jaw-opening exercise in training suprahyoid fast-twitch muscle fibers.

Purpose: This study was aimed to examine the effectiveness of a high-speed jaw-opening exercise, which targets the contraction of fast-twitch muscle fibers, in improving swallowing function.

Subjects And Methods: Twenty-one subjects (mean age 74.0±5.

Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects.

Purpose: This study aimed to examine the relationship between jaw opening force and hyoid bone dynamics and resting position in elderly individuals based on gender.

Subjects And Methods: Subjects were 36 healthy elderly individuals aged ≥65 years without dysphagia (16 men and 20 women; mean age 75.5 years, range 65-88 years).