Here it gets a bit scientific… but our sensor data shows a very strong correlation with lab results (r = 0.91).
In simple terms: the OnTracx sensor measures load almost the same way as expensive, specialized lab equipment.
As a spin-off from Ghent University and its Sport Science Laboratory – Jacques Rogge, we value accuracy and validity above all else. We don’t just want a tool that looks good—we want one that truly works.
Our measurements have been validated against the so-called “gold standard” lab methods. This means we’ve tested and confirmed that the load you see in OnTracx closely matches what scientists measure in controlled lab conditions.
That said, no product is perfect—but we’re confident that our data is accurate enough to guide you safely and effectively in real-world running.