Use the following case to answer questions 37-44 Donald is a…
Use the following case to answer questions 37-44 Donald is a 65-year-old male. He is fairly sedentary, he is retired, and his leisure activities include watching TV, reading, and attending local collegiate sporting events. He has presented to outpatient physical therapy for an exercise program at the request of his son, who has been urging him for years to “do something.” He is now motivated to “get in shape” to see his grandchildren grow up. Examination findings PMedHX: gout, HTN, hypercholesteremia, plantar fasciitis, and OA of bilateral knees (he has received several cortisone injections). Meds: Lopressor (Metoprolol), Lipitor, and Chondroitin supplements. He recently had a non-remarkable stress test. His physician cleared him to begin an exercise program. 5 feet 10 inches and weighs 240 pounds. (BMI 34.4) Vitals: BP 130/85, resting HR 80 Muscle strength testing (5/5) with the exception of bilateral hip ext. 3/5, hip abd. 4/5, ankle plantar flexors 3/5, trunk flexors 2/5, trunk extensors 2/5. Transfers were independent. Gait pattern was slow and antalgic initially upon getting out of the chair for the 1st 30 ft, and revealed decreased push off bilaterally. He was able to walk up and down a flight of stairs with a handrail, but c/o 7/10 pain during and after and utilized a “step-to” gait pattern for both ascend and decend. Which of the following is the BEST method of determining intensity for aerobic conditioning exercise presecription with Donald?