4. Discussion: LC, displacement and accident risks

The aim of this article was to highlight a possible disruption to movement when LCs are used while walking, potentially leading to greater exposure to the risk of a level fall or collision with an obstacle.

The results show first of all that the simple fact of wearing LCs, even when inactive (without displaying information on the screen), has a slight influence on movement, with a slowdown of 1 to 2%, a shortening of step length by around 2% and small deviations in trajectory, observed under the conditions of this study. This was particularly true for the three models that required a cable to be connected to a smartphone, worn as a holster by the user. These results could be explained by the physical characteristics of these models (screen size, temples, etc.), which obscure part of the user's field of vision. The results are consistent with other studies, such...