Low-load Resistance Training With Blood Flow Restriction in People With Parkinson's Disease

A licensed physical therapist, will deliver intervention to all participants (2x/wk, 8 wks) using an FDA-cleared BFR system, the Delfi PTSII (Delfi Medical Innovations). The pressure cuff will be placed at the most proximal portion of the limb and dosed following standard BFR guidelines: 1 set of 30 reps, then 3 sets of 15 reps at 20-30% 1RM with a minimum of 60% and a maximum of 80% limb occlusion pressure. At 60-80% limb occlusion pressure there is diminished venous outflow to induce the necessary metabolic effect while still allowing arterial flow for safety. Individual limb occlusion pressures will be determined at the beginning of each session automatically by the Delfi PTSII device.