Smaller Cortisol Awakening Responses Are Associated with Greater Visual Dependence in Postural Control
| Autor: | Nina Smyth, John F. Golding, Angela Clow, Phil Evans, Lisa Thorn, Maria Flynn, Monica Milani |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Cortisol awakening response Visual perception genetic structures Leadership and Management Health Informatics Audiology postural control Article Postural control 03 medical and health sciences 0302 clinical medicine Health Information Management medicine cortisol awakening response Force platform Circadian rhythm visual dependency 030304 developmental biology Morning 0303 health sciences Home environment business.industry Health Policy hypothalamic–pituitary–adrenal (HPA) axis Visual dependency salivary cortisol Medicine business human activities 030217 neurology & neurosurgery |
| Zdroj: | Healthcare, Vol 9, Iss 723, p 723 (2021) Healthcare Volume 9 Issue 6 |
| ISSN: | 2227-9032 |
| DOI: | 10.3390/healthcare9060723 |
| Popis: | There are known links between the hypothalamic–pituitary–adrenal (HPA) axis and systems responsible for regulating posture. Our aim was to explore directly, for the first time, whether an aspect of circadian HPA axis activity (the cortisol awakening response: CAR) was associated with greater visual dependency in postural control. For measurement of the CAR, electronically monitored saliva samples were collected by participants following morning awakening in their home environment. On the afternoons of the same days, postural sway was measured in the laboratory by exposing participants to static (control) and moving visual stimuli whilst standing still and upright on a force platform. Visual dependence was assessed as the increase in postural sway (path length) during exposure to the moving compared with the static condition. The 44 measurement days were derived from four days for each of eleven healthy participants (mean ± SD age: 51.18 ± 3.3 years). As expected, postural sway was greater when exposed to moving versus static cues. Mixed regression modelling showed that participants with smaller four day average CARs had greater deterioration in postural sway when presented with moving stimuli. These data are the first to document associations between the CAR and visual dependency in postural sway. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|