I have been working out in a Kenzai Program called Sculpt. https://www.kenzai.com/
Part of the program includes a cardio workout. The younger and stronger members jump robe. The older and more brittle members such as I opt for speed walking or other options. I walk around the neighborhood everyday and every day I see something different. Far more satisfactory than staring at a TV while running on a treadmill in a sports club.