Selective preservation of changes to standing balance control despite psychological and autonomic habituation to a postural threat.

ABSTRACT: Humans exhibit changes in postural control when confronted with threats to stability. This study used a prolonged threat exposure protocol to manipulate emotional state within a threatening context to determine if any threat-induced standing behaviours are employed independent of emotional state. Retention of balance adaptations was also explored. Thirty-seven adults completed a series of 90-s standing trials at two surface heights (LOW: 0.8 m above ground, away from edge; HIGH: 3.2 m above ground, at edge) on two visits 2-4 weeks apart. Psychological and autonomic state was assessed using self-report and electrodermal measures. Balance control was assessed using centre of pressure (COP) and lower limb electromyographic recordings. Upon initial threat exposure, individuals leaned backward,

SUBMITTER: Zaback M 

PROVIDER: S-EPMC7801693 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature