Finding a running style by measuring step frequency & ground contact time

This allows for measuring running style while simultaneously receiving audio instructions from a single device. A rhythm conveyed through audio can effectively control step frequency, and verbal instructions regarding ground contact time are effective. This is evident from the research conducted by movement scientist Anouk Nijs, who first tested this on a treadmill where the speed is constant. Outdoors, it was found that the speed changed when instructions about step frequency and ground contact time were given separately.

Nijs: "Together with the company Dopple, we have incorporated the instructions into an application: the Running Buddy. This application challenges the runner to adjust their running style in different directions. The prototype of the app proved effective, although its user-friendliness could still be improved."

Measuring during running
In recent years, technological advancements have made it possible to measure various aspects while running using phones and wearables. "However, the interpretation of the data still leaves something to be desired," says Nijs. "In my research, I sought to answer the question of which instructions are best given to runners to adapt their running style during training, allowing them to explore which running style suits them."

Changes in running style
The instructions can be applied in running training and in research on running, performance, and injuries. Nijs: "Furthermore, the instructions can be used to achieve specific changes in running style and to challenge the runner to introduce more variety into their running style, as the Running Buddy app does. If this app is further developed and released, it can help novice runners determine which running style works best for them."