The diagnostic accuracy of hip abductor strength in the fall risk of older persons

Gafner, Simone C. (Geneva School of Health Sciences, HES-SO University of Applied Sciences and Arts Western Switzerland) ; Bastiaenen, C.H. (Research Program Functioning and Rehabilitation, CAPHR I, Maastricht University, Maastricht, Epidemiology, Maastricht, The Netherlands) ; Ferrari, S. (University Hospitals and University of Geneva, Department of Internal Medicine Specialties, Geneva, Switzerland) ; Gold, G. (University Hospitals and University of Geneva, Department of Internal Medicine, Rehabilitation and Geriatrics, Geneva, Switzerland) ; Terrier, P. (Clinique romande de réadaptation SUVACare, Department of Research, Sion, Switzerland) ; Hilfiker, R. (School of Health Sciences, HES-SO Valais-Wallis, Leukerbad, Switzerland) ; Allet, L. (Haute école de santé Genève, HES-SO Haute école spécialisée de Suisse occidentale)

Introduction/Background Persons aged over 65 years have an increased risk of falling and falls often trigger serious consequences like independency loss and increased mortality. An early detectionof persons at risk of falling and a well-targeted fall prevention is thus of great interest. Previous studies showed that hip abductor strength is the muscle groups among all hip muscles, which is particularly related to the fall risk of older persons. Thereforeweaimed to investigate the diagnostic accuracy of hip abductor strength by using history of falls as the external criterion. Material and method Hip abductor maximum voluntary isometric strength (ABD MVIS) and rate of force generation (ABD RFG) were assessed with a dynamometer fixed to a custom made frame in 60 persons aged over 65 years. The diagnostic accuracy [sensitivity (sens), specificity (spec), positive predictive value (PPV), negative predictive value (NPV), positive and negative likelihood ratios (LR+, LR−)] was assessed at a clinically important 90% sensitivity level. Cutoff values were calculated. Results Hip ABD MVIS (Sens. 90.6%, Spec. 57.1%, PPV 70.7%, NPV 84.2%, LR+ 2.11, LR− 0.16, cutoff value ≤ 1.06 N/kg) shows a slightly higher diagnostic accuracy than hip ABD RFG (Sens. 90.6%, Spec. 46.4%, PPV 65.9%, NPV 81.3%, LR+ 1.69, LR− 0.20, cutoff ≤ 8.47 N/kg/s). The results indicate that hip abductor strength shows a comparable diagnostic accuracy as other fall risk or mobility assessment tools (e.g. timed up and go test and short physical performance battery). Conclusion Hip abductor strength shows a good diagnostic accuracy to discriminate between older fallers and non-fallers and therefore might be an interesting parameter for fall risk prediction and a targeted intervention program. This very promising parameter should further be investigated in prospective studies.


Note: 12th World Congress of the International Society of Physical and Rehabilitation Medicine, 8-12 July 2018, Paris, France


Keywords:
Article Type:
scientifique
Faculty:
Santé
School:
HEdS - Genève
HEdS-VS
Institute:
Institut Santé
Date:
2018-07
Pagination:
1 p.
Published in:
Annals of Physical and Rehabilitation Medicine
Numeration (vol. no.):
2018, no 61S, ISPR8-1585, pp. e336
DOI:
ISSN:
18770657
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2020-02-06, last modified 2020-04-01

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