A 51-year-old says she's in the best shape of her life. She swapped sweaty workouts for strength training

Natalie Bushaw, 51, focuses on strength training and uses a walking pad at work. Natalie Bushaw Natalie Bushaw, 51, was always active growing up. She started going to the gym more regularly a few years into becoming a mom. She said strength training and getting some physical assessments helped her…