Yoga on a virtual beach?

Both augmented reality (AR) and virtual reality (VR)promise to be pretty great for fitness.

This could be huge.

Someone wearing a VR headset and working out with controllers at home.

Someone wearing a VR headset and working out at home.Antonio_Diaz / Getty Images

You’d never have to see the dust under the sofa while doing a low cobra ever again.

VR is neat for some kinds of workouts.

And imaginea kickboxing workoutwith floating targets to kick and punch.

Someone doing yoga while wearing virtual reality glasses indoors at home.

Someone doing yoga while wearing virtual reality glasses.Alexandr Dubynin / Getty

Virtual zombies, for example.

Alexandr Dubynin / Getty

“Some users on some devices can experience nausea, especially with more movement.

There are alsothe physical challenges of wearing a headsetwhile working out.

Even with that special sweat-ready face cushion, you’re still sweating into something clamped to your face.

“AR/VR workouts […] rely heavily on technology, which can introduce technical glitches or limitations.

But if those problems can be solved, fitness will become attractive to a whole lot more people.