Mettle Multisport is a resource for everyday adults getting back into regular exercise after a break. Most of us were active once, then life got busy. Coming back at 45 or 50 is not the same as starting at 25, and the old push-through-it approach tends to backfire.
The aim here is practical and patient. Build a base with a mix of walking, running, and strength. Start gentle, add variety, and sidestep the too-much-too-soon mistakes that end a comeback in a sore knee three weeks in.
Articles draw on guidance from sources like the CDC, the American College of Sports Medicine, and published exercise research, summarized in plain language. This is general information to help you make sensible choices about getting active again. It is not medical advice, so if something hurts or you are unsure, check with your doctor.