Circuit Training and Retina

Circuit Resistance Training and Retinal Vascular Changes in Older Persons

The purpose of this research study is to see if high-speed weight training performed in a circuit (using one machine after another) can improve participant heart and brain function, strength, and power in older persons.

Inclusion Criteria:

1. 65-90 years of age;
2. Montreal Cognitive Assessment (MoCA) > 23
3. no memory loss complaints

Exclusion Criteria:

1. Uncontrolled cardiovascular or neuromuscular diseases that prevent participation in a training program;
2. Cerebrovascular disease;
3. Malignancy within the previous 5 years;
4. Documented HIV infection or other immunodeficiency syndrome;
5. Any systemic inflammatory or autoimmune conditions such as rheumatoid arthritis, systemic lupus erythematosus, or other serious concomitant medical illness;
6. A history of ocular surgeries (except for cataract surgery more than 6 months ago) or other ocular diseases;
7. Bilateral moderate or severe cataracts;
8. Refractive errors of myopia, hyperopia and/or astigmatism more than 6.0 Diopters.