"Heel Hop" and "Stiletto Strength" classes, which see women walk, squat and even do sit-ups in heels are already a big thing in Los Angeles and New York gyms. And now we could be seeing the very same this side of the pond.
London-based personal trainer Nikki Manashe started planning a new high heel exercise regime 18 months ago while trying out a pole dancing fitness DVD.
"This particular workout required you to do squats and lunges while wearing them," she told the Mail Online. "I had never felt my leg muscles work so hard."
In that moment Nikki reckoned she was on to something and began developing her own stiletto workout.
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"The best workout is done on a hill because doing lower body moves with the ankles lifted slightly higher make the calf, hip and leg muscles work much harder," she explained.
"Wearing heels at least 3in high means anything you do that works the lower body is not only more effective, it works the smaller muscles, too.
"High heels make you feel sexy and more confident. For clients who hate working out, it's a great way of forgetting they're trying to get fit and making the workout more fun."
However, physiotherapist Tim Allardyce isn't so keen.
"Working out in high heels is absolutely crazy and completely ridiculous," he told the Mail.
"You're increasing the stress through your legs because you're working out with your feet in an abnormal position. Most of the force is going into the big toe, which can lead to bunions."
It can also damage joints, he says. "If you work out wearing heels instead of trainers, the foot doesn't adequately absorb the force of movements such as lunges and squats. That force has to go somewhere, so it adds unhealthy pressure to the knees, the hips, the ankles and back."
The question is, would you try it?