Subjective stability perception is related to postural anxiety in older subjects
| Autor: | Patricia Castro, Adolfo M. Bronstein, Qadeer Arshad, Diego Kaski, Marco Schieppati, Michael D. Furman |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male medicine.medical_specialty genetic structures Adolescent media_common.quotation_subject Biophysics Stability (learning theory) Anxiety Postural control 03 medical and health sciences Young Adult 0302 clinical medicine Physical medicine and rehabilitation Perception medicine Humans Orthopedics and Sports Medicine Postural Balance Balance (ability) media_common Aged Aged 80 and over Foot Rehabilitation 030229 sport sciences Fall risk Middle Aged Trunk Healthy Volunteers Postural stability Accidental Falls Female medicine.symptom Psychology 030217 neurology & neurosurgery |
| Zdroj: | Gaitposture. 68 |
| ISSN: | 1879-2219 |
| Popis: | Background Under static conditions, the objective and subjective measures of postural stability correlate well. However, age-related changes in postural control and task-related anxiety may modify the relationship between these subjective and objective measures. Ultimately, patients’ symptoms represent subjective reports, thus understanding this relationship has clinical implications. Aims This study investigates the relationship between subjective-objective measures of postural stability in dynamic conditions and whether this relationship is influenced by age or task-related anxiety. Methods 50 healthy participants (aged 18–83 years) stood on a platform oscillating at variable amplitudes, with-without a fall-preventing harness to modulate task-related anxiety. Trunk sway path, hip velocity and foot lifts (objective measures) and subjective scores of instability and task-related anxiety were recorded. Results The subjective perception of stability accurately matched objective body sway, following a logarithmic function profile (r2 = 0.72, p Discussion Subjects accurately rate their own instability during dynamic postural challenges, irrespective of age and actual fall risk. However, anxiety may selectively modulate the perception of instability in older subjects. The perception of stability relies upon the integration of sensory afferents but also recruits emotional-cognitive processes, particularly in older individuals. The use of a safety harness has no influence on subjective or objective postural stability. |
| Databáze: | OpenAIRE |
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