Can we predict the risk of falls in elderly patients with instability?

Soto-Varela, Andrés; Faraldo-García, Ana; Rossi-Izquierdo, Marcos; Lirola-Delgado, Antonio; Vaamonde-Sánchez-Andrade, Isabel; Del-Río-Valeiras, María; Díz, Pilar; Santos-Pérez, Sofía

doi:10.1016/j.anl.2014.06.005

Cited by 48 publications

(48 citation statements)

References 19 publications

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“…Accordingly, evidence supports that sensory reweighting is particularly inefficient in fall-prone older adults, compared to healthy older adults (Jeka et al, 2010;Pasma et al, 2015). This link between deficient sensory reweighting and balance impairment is in line with a study that examined which parameters could best detect unstable older adults at risk of multiple falls (Soto-Varela et al, 2015). The authors found that the two best predictors were: mean scores on the Sensory Organization Test, which assesses sensory reweighting abilities, and directional control scores on the Limits of Stability test, which assesses ability to control the center of gravity (CoG).…”

Section: Introductionsupporting

confidence: 65%

Slowed sensory reweighting and postural illusions in older adults: the moving platform illusion

Craig

Doumas

2019

Journal of Neurophysiology

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We investigated whether postural aftereffects witnessed during transitions from a moving to a stable support are accompanied by a delayed perception of platform stabilization in older adults, in two experiments. In experiment 1, postural sway and muscle cocontraction were assessed in 11 healthy young, 11 healthy older, and 11 fall-prone older adults during blindfolded stance on a fixed platform, followed by a sway-referenced platform and then by a fixed platform again. The sway-referenced platform was more compliant for young adults, to induce similar levels of postural sway in both age groups. Participants were asked to press a button whenever they perceived that the platform had stopped moving. Both older groups showed significantly larger and longer postural sway aftereffects during platform stabilization compared with young adults, which were pronounced in fall-prone older adults. In both older groups elevated muscle cocontraction aftereffect was also witnessed. Importantly, these aftereffects were accompanied by an illusory perception of prolonged platform movement. After this, experiment 2 examined whether this illusory perception was a robust age effect or an experimental confound due to greater surface compliance in young adults, which could create a larger perceptual discrepancy between moving and stable conditions. Despite exposure to the same surface compliance levels during sway-reference, the perceptual illusion was maintained in experiment 2 in a new group of 14 healthy older adults compared with 11 young adults. In both studies, older adults took five times longer than young adults to perceive platform stabilization. This supports that sensory reweighting is inefficient in older adults. NEW & NOTEWORTHY This is the first paper to show that postural sway aftereffects witnessed in older adults after platform stabilization may be due to a perceptual illusion of platform movement. Surprisingly, in both experiments presented it took older adults five times longer than young adults to perceive platform stabilization. This supports a hypothesis of less efficient sensory reintegration in this age group, which may delay the formation of an accurate postural percept.

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Section: Introductionsupporting

confidence: 65%

Slowed sensory reweighting and postural illusions in older adults: the moving platform illusion

Craig

Doumas

2019

Journal of Neurophysiology

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“…The CDP-SOT differences for the comparisons between disability levels in the present study are greater than those in previous reports that applied the CDP-SOT as a discriminant test of fall risk. In older adults, CDP-SOT condition 2 was the only score that was significantly different between fallers and nonfallers (equilibrium score difference of 3.5), 24 and in people with MS, an equilibrium score difference of 8.4 was reported for CDP-SOT condition 3 between fallers and nonfallers. 8 Moreover, in the present study, both disability groups presented with progressively worse equilibrium scores from condition 1 to condition 6.…”

Section: Discussionmentioning

confidence: 82%

Reliability and Validity of the Computerized Dynamic Posturography Sensory Organization Test in People with Multiple Sclerosis

Hebert¹,

Mañago²

2017

International Journal of MS Care

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“…Naudodami posturografiją galime tiksliai įvertinti kritimo riziką (A. Soto-Varela ir kt. ), taikyti gydymą bei stebėti jo efektyvumą [25]. Pusiausvyros ištyrimas ir įvertinimas yra svarbus ir naudojamas ne tik medicinoje.…”

Section: Pritaikymasunclassified

Posturografijos metodai, naudojami pusiausvyros kontrolės sistemai vertinti

Paškonienė

Karnuševičius

Lesinskas

2015

Medicinos Teorija Ir Praktika

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Reikšminiai žodžiai: posturografija, pusiausvyra, svaigimas, vestibulinis neuronitas. Pusiausvyros sistemos kontrolės disbalansas sukelia simptomus, kurie sutrikdo aktyvią žmogaus veiklą, o diagnostika neretai yra sudėtinga dėl galimų priežasčių įvairovės, todėl tai kelia rimtą galvosūkį įvairių specialybių gydytojams, į kuriuos kreipiasi pacientai. Dauguma plačiai naudojamų pusiausvyros funkcijos tyrimo metodų yra gana riboti, nes tiria tik vieną ar kelias pusiausvyrą išlaikančias sistemas, išskyrus posturografiją. Ji ypač vertinga diferencijuojant periferinės vestibulinės sistemos sutrikimus nuo kitų sistemų (centrinės, somatosensorinės, psichiatrinės, ortopedinės), kas ir yra kol kas pirmiausia ir svarbiausia renkantis tolesnę gydymo taktiką. Sistema įgalina objektyviai, greitai ir dažnai vertintini ligos dinamiką, vaistų ir reabilitacijos efektyvumą, kas iki šiol buvo subjektyvu. Straipsnio tikslas yra apžvelgti šiuo metu pasaulyje ir Lietuvoje naudojamus posturografijos metodus, jų veikimo principus, pritaikymą klinikinėje praktikoje ir esminius vertinimo parametrus. Taip pat pristatome klinikinį atvejį paciento, kuriam posturografija buvo naudinga diagnozuojant vestibulinį neuronitą ir vertinant gydymo eigą.

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Can we predict the risk of falls in elderly patients with instability?

Cited by 48 publications

References 19 publications

Slowed sensory reweighting and postural illusions in older adults: the moving platform illusion

Slowed sensory reweighting and postural illusions in older adults: the moving platform illusion

Reliability and Validity of the Computerized Dynamic Posturography Sensory Organization Test in People with Multiple Sclerosis

Posturografijos metodai, naudojami pusiausvyros kontrolės sistemai vertinti

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