Earbuds might soon track your running style better than watches

Most runners plug in earbuds to zone out with music or podcasts—but what if those same tiny devices could study your movement?

Researchers put this idea to the test by embedding motion sensors into earbuds. Their experiment? Thirty runners—equally split between men and women—jogged on treadmills and solid platforms while the earbuds tracked every step. The mission was clear: Could these wireless wonders predict ground forces as accurately as high-tech lab machines?

The Results? Shockingly Good.

The earbuds didn’t just detect foot strikes—they measured them nearly as precisely as specialized insoles or hip-mounted trackers. And when it came to calculating the push-up force from the ground? Less than 10% error. Even better, they reconstructed the full force curve your feet experience with each stride—not just the peak impact.

For runners tired of strapping on extra gadgets, this could be a game-changing breakthrough.

But It’s Not Perfect (Yet).

The system hit a snag with ultra-fast force shifts, showing an 11% average error when predicting unseen runners. Translation? Don’t expect it to replace force plates in sports science labs anytime soon.

Yet for everyday athletes, it’s close enough to spot flaws in running form—without stepping into a gym.

The future of running tech might be… hanging from your ears.