These Butt-Kicking Seniors are getting their peers in shape

 

It’s time to put your notions of old age out to pasture.

Far from retiring, these NYC seniors are having the time of their lives working as fitness instructors — and using their years of training to sculpt, tone and perfect bodies of all ages. Who said that jocks had to be young?

In fact, fitness programs for the elderly are among the top health trends for 2018, according to the American College of Sports Medicine’s Health & Fitness Journal’s 2018 survey of thousands of physical fitness professionals.

“When you’re older, you really need an older teacher,” Marjorie Jaffe, a senior personal trainer who focuses on older clients, tells The Post. “You’re really not interested in [toning] your arms or your butt. You’re more interested in your balance, keeping your body straight and not limiting your life.”