Anxiety, as a multifaced construct encompassing physiological, cognitive, and behavioral responses to perceived stress, is associated with locomotion. This mini-review focuses on a study employing the "broken-escalator phenomenon" to explore how postural threat-induced anxiety affects locomotor adaptation (learning) and deadaptation (updating). The study sheds light on the significance of perceived safety and appropriate structure of environment for effective learning. The review also comments on related paths of inquiry and potential future directions.