Dynamic balance control in elders: gait initiation assessment as a screening tool

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Deutscher übersetzter Titel:Kontrolle der dynamischen Balance bei aelteren Menschen: Beurteilung der Ganginitiierung als Screening-Werkzeug
Autor:Chang, H.; Krebs, D.E.
Erschienen in:Archives of physical medicine and rehabilitation
Veröffentlicht:80 (1999), 5, S. 490-494, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:0003-9993, 1532-821X
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Erfassungsnummer:PU199908401096
Quelle:BISp

Abstract des Autors

Objective: To determine whether measurements of center of gravity-center of pressure separation (CG-CP moment arm) during gait initiation can differentiate healthy from disabled subjects with sufficient specificity and sensitivity to be useful as a screening test for dynamic balance in elderly patients. Subjects: Three groups of elderly subjects (age, 74.97+/-6.56 yrs): healthy elders (HE, n=21), disabled elders (DE, n=20), and elders with vestibular hypofunction (VH, n=18). Design: Cross-sectional, intact-groups research design. Peak CG-CP moment arm measures how far the subject will tolerate the whole-body CG to deviate from the ground reaction force's CP; it represents dynamic balance control. Screening test cutoff points at 16 to 18 cm peak CG-CP moment arm predicted group membership. Results: The magnitude of peak CG-CP moment arm was significantly greater in HE than in DE and VH subjects (p<.01) and was not different between the DE and VH groups. The peak CG-CP moment arm occurred at the end of single stance phase in all groups. As a screening test, the peak moment arm has greater than 50% sensitivity and specificity to discriminate the HE group from the DE and VH groups with peak CG-CP moment arm cutoff points between 16 and 18 cm. Conclusions: Examining dynamic balance through the use of the CG-CP moment arm during single stance in gait initiation discriminates between nondisabled and disabled older persons and warrants further investigation as a potential tool to identify people with balance dysfunction. Verf.-Referat