Advice to people with Parkinson's in my clinic: Get a cardiopulmonary exercise test.

Aerobic (cardiopulmonary) exercise training improves fitness and limits the progression of motor signs in Parkinson's disease. Individualized development of exercise prescriptions relies upon accurately measured peak heart rate (HR). Cardiopulmonary exercise testing (CPET) is the only methodology to objectively confirm an individual's peak HR. This test is important in individuals who may have autonomic dysfunction, which may manifest as chronotropic incompetence. Without CPET's confirmation of maximal effort, there is no way of knowing whether exercise prescription in those with chronotropic incompetence is accurate. CPET also provides information regarding cardiorespiratory fitness, which can motivate patients to exercise to prolong health.