Safety and Effectiveness of Resistance Exercise Training in Patients With Pompe Disease.

Eligibility: Subjects that are age 16 years or older, have been diagnosed with Pompe disease
by genetic testing, and are showing symptoms such as muscle weakness

Time Commitment:

The study will last for 8 months. This study consists of a baseline visit of and return
visits at week 9, week 16, week 24, and week 32. At the week 9 visit the subject will be
given an individualized exercise plan which will be carried out over the next 24 weeks. The
subject will be asked to return for three more visits at week16, week 24 and week 32. The 24
week training period will involve 3 workouts a week approximately 15-30 minutes each. It
will also involve a breathing exercise that the subject can do at home twice daily for 10-15
minutes per session. The study visits will include the exercise plan, physical exam, blood
draw and questionnaires.

Anticipated Benefits:

The possible benefits include a delay in progression of muscle weakness. The knowledge
gained from this study will help researchers understand the effect of exercise on the
disease. This may eventually lead to new forms of prevention of symptom onset in the future.

Inclusion Criteria:

1. Able to fully consent to the protocol.

2. Physically able to perform resistance exercises for 12 weeks.

3. Patients with a confirmed diagnosis of Pompe disease.

4. Age 16 years to 75 years.

5. Currently receiving ERT.

6. Patient on ERT for at least 1year.

Exclusion Criteria:

1. Patients with no confirmed diagnosis of Pompe disease, either by GAA enzyme
deficiency from any tissue and/or molecular testing revealing two GAA gene mutations

2. Unable to walk or cycle

3. Unable to consent to the study/ procedures

4. Women who are pregnant or breastfeeding

5. Heart disease

6. Patients with any metal inside their body such as metallic clips used for vascular
repairs and/or implanted devices such as cardiac pacemakers which would prevent them
from doing the MRI.