Gait adaptability
Participants walked in a virtual environment of a path through a forest, with various slopes and turns. Both the incline/decline of the slopes and the sharpness of the turns had a standardised starting level of 20% (out of 100%), which was then progressed in steps of 5–15%. Each 5% increase in difficulty level means an increase in the incline, decline and rotation of 0.5 degrees.