I once messed up my knees doing construction work, so I had to swap heavy-impact stuff for joint-friendly exercises too. When I started getting back into workouts, I kept it super simple—focused on whole-body circuits using machines and light free weights. Bikes and rowers became my best friends, no stairs involved. I found some decent starter routines on YouTube and fitness forums, but when I needed a bit more structure, I came across some great resources on https://www.exercise.com/ . They had solid guides that weren’t just cookie-cutter plans, which was a relief. Keeping things balanced and low-impact definitely made a huge difference for me.