Senior Adult Hepatobiliary Prehab Study

Participants will be encouraged to perform approximately 30 minutes of resistance training exercises twice per week, until they undergo surgery. Exercises will be performed using resistance tubes (Bodylastics Inc) and the included accessories (handles and anchor straps) to perform resistance exercises. During Zoom sessions, certified exercise trainers will guide participants to utilize equipment to perform resistance exercises with proper form. Each groups resistance training session will span approximately 1 hour, including a brief warm-up, stretching, and 2 sets of ≥12 repetitions for each of 5 exercises: single arm chest press, single arm row, lateral raise, squat (or chair stand), and resistance tube deadlift.

Participants will be encouraged to perform ≥30 minutes of moderate-intensity aerobic exercise on ≥3 days per week. Aerobic exercise intensity will be guided by heart rate zones, with participants exercising at 50-70% of their age-predicted maximum heart rate in bouts of at least 10 minutes at a time. Participants will be encouraged to gradually increase exercise intensity and duration until they are meeting the recommendation