Caregiving | Home & Family | Personal HealthCaregivers: There’s a fitness movement afoot that may make you jump for joy. In the last year, adult outdoor playgrounds with low impact-exercise equipment have been springing up around the country. Some are incorporated into kiddie playgrounds, known as “multigenerational playgrounds.” Others are near the children’s area, while still others are separate older adult areas (“senior playgrounds”). Designers have skipped the swings in favor of balance beams, sit-up and chin-up bars, cross trainers, stationary exercise bikes, fitness stations and walking …