A 71-year-old trainer says these five moves are all you need for full-body strength after 50

A man performs a plank exercise at home on an exercise mat. He is on his hands and toes, hips held high above the exercise mat, with his body held in a straight line from his shoulders to his heels. .

Compound moves work multiple muscle groups at the same time, making them an efficient way to build full-body strength.

Liz Hilliard is a 71-year-old fitness instructor and founder of the Hilliard Studio Method. She believes she’s stronger now than she was at 40.