aerobics

Demi Moore stars as Elisabeth Sparkle, a sort of Jane Fonda-type aerobics star.

An early pioneer of fitness trends, she brought liquid diets into popular conversations, became an ambassador for aerobics and embraced yoga long before it became a celebrity craze.

For people like me who came of age during the insane era of high-impact aerobics — thanks for the sciatica, Jane Fonda! — the low-impact nature of Pilates is appealing.

The costumes by Vicki Conrad set up a world that’s part “Saturday Night Fever,” part Jane Fonda aerobics video.

Richard Simmons, the colorful fitness guru who turned aerobics dancing and positive energy into decades of fame, died Saturday, law enforcement sources said.