Respiratory Training in Friedreich's Ataxia

Exclusion Criteria

• •have been on antibiotics within 15 days prior to baseline screening.
• •have been prescribed systemic corticosteroids or neuromuscular blocking agents within 15 days of the baseline screening
• •have an allergy or contraindication to topical lidocaine or oxymetazoline
• •have any other concurrent medical condition which, in the opinion of the investigators, would make the subject inappropriate to participate in testing or respiratory exercise