Accuracy of modified 30-s chair-stand test for predicting falls in older adults - 20/07/20
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Graphical abstract |
Highlights |
• | An ability to maintain balance during sit-to-stand represents the ability of active daily living. |
• | Age-related deterioration in sensory reweighting may lead to postural instability. |
• | The modified 30s-CST with sensory perturbations challenged the postural control. |
• | The m30CSTs improve the accuracy in predicting falls in older adults as compared with the 30s-CST. |
Abstract |
Background |
Postural stability during sit-to-stand (STS) movements depends on visual and somatosensory information. A modification of the 30-sec chair-stand test (30s-CST) with visual and somatosensory alteration (m30CST) may improve the ability to identify fall status.
Objective |
This study aimed to investigate the accuracy of the m30CST in predicting falls in older adults.
Methods |
This prospective cohort study recruited a convenience sample of 73 individuals from Kao Kilo community, Chonburi, Thailand. Eligibility criteria were age≥65 years and independent STS ability. All participants performed the 30s-CST and m30CSTs (i.e., eyes closed and a foam surface and eyes closed and a foam surface). The fall incidence during a 6-month follow-up was recorded. The area under the receiver operating characteristic curve (AUC) was calculated. Twenty participants were designated for reliability and validity analyses using the 30s-CST and the Fullerton Advanced Balance (FAB) Scale, estimating intraclass correlation coefficients (ICCs).
Results |
We included 37 fallers and 36 non-fallers. All tests showed excellent accuracy in classifying fallers (AUC=0.77–0.91). The m30CST with eyes closed and a foam surface had the highest AUC (0.91), with a cutoff score of 9.25 repetitions, sensitivity 92%, and specificity 81%. The m30CSTs presented excellent inter-rater reliability (ICC=0.93–0.96) and test–retest reliability (ICC=0.90–0.96), good to excellent correlation with the 30s-CST (r=0.90–0.98), and moderate to good correlation with the FAB Scale (r=0.64–0.73).
Conclusions |
The m30CST could be used as an alternative evaluation for predicting the risk of falls in community-dwelling older adults, with excellent accuracy.
Le texte complet de cet article est disponible en PDF.Keywords : Eyes closed, Sensory alteration, Sensory reweighting, Sit-to-stand (STS), Unstable surface
Plan
Vol 63 - N° 4
P. 309-315 - juillet 2020 Retour au numéro
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