Inter-observer Reliability and Concurrent Validity of Reactive Balance Strategies after Stroke

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2019
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Handelzalts, Shirley
Steinberg-Henn, Flavia
Soroker, Nachum
Melzer, Itshak
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Israel Medical Association Journal (IMAJ). Israel Medical Association. 2019, 21(December), pp. 773-778. ISSN 1565-1088
Zusammenfassung

Background:
Falls are a common complication in persons with stroke (PwS). Reliable assessment of balance responses to unexpected loss of balance has the potential to identify risk for falls. Objectives: To examine inter-observer reliability of balance responses to unannounced surface perturbations in PwS and to explore the concurrent validity of a balance recovery assessment protocol.

Methods:
Two observers evaluated balance recovery strategies and fall threshold (a fall into a harness system) in 15 PwS and 15 healthy adults who were exposed to forward, backward, right, and left unannounced surface translations in six increasing intensities while standing.

Results:
Observer agreement was 100% for the fall threshold. Kappa coefficients for step strategies were 0.960–0.988 in PwS and 0.886–0.938 in healthy adults, 0.905–0.988 for arm reactions in PwS and 0.754–0.926 in healthy adults. Significant correlations were found between fall threshold and Berg Balance Scale (r = 0.691), 6-minute walk test (r = 0.599), and fall efficacy scale-international (r= -0.581).

Conclusions:
A trained examiner can reliably classify reactive balance responses to surface perturbations. The high frequency of falls observed in PwS highlights the importance of assessing reactive balance responses to different directions and intensities of surface translations.

Zusammenfassung in einer weiteren Sprache
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796 Sport
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compensatory step, falls, fall threshold, step threshold
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ISO 690HANDELZALTS, Shirley, Flavia STEINBERG-HENN, Nachum SOROKER, Michael SCHWENK, Itshak MELZER, 2019. Inter-observer Reliability and Concurrent Validity of Reactive Balance Strategies after Stroke. In: Israel Medical Association Journal (IMAJ). Israel Medical Association. 2019, 21(December), pp. 773-778. ISSN 1565-1088
BibTex
@article{Handelzalts2019Inter-56387,
  year={2019},
  title={Inter-observer Reliability and Concurrent Validity of Reactive Balance Strategies after Stroke},
  url={https://www.ima.org.il/FilesUploadPublic/IMAJ/0/393/196919.pdf},
  number={December},
  volume={21},
  issn={1565-1088},
  journal={Israel Medical Association Journal (IMAJ)},
  pages={773--778},
  author={Handelzalts, Shirley and Steinberg-Henn, Flavia and Soroker, Nachum and Schwenk, Michael and Melzer, Itshak}
}
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