About the Condition. Vocal hyperfunction (VH) is one of the most prevalent types of voice disorders and refers to chronic conditions of abuse or misuse of the vocal mechanism (larynx or voice box) due to excessive and/or unbalanced (uncoordinated) muscular forces.

What is a Hyperfunctional voice?

Vocal hyperfunction occurs when the muscles of the larynx work too hard when speaking. The condition can be brought on by stress, reflux or other conditions.

What is an example of a functional voice disorder?

The most common FVDs are due to vocal fatigue, muscle tension dysphonia or aphonia, diplophonia, and ventricular phonation.