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  • Title: To what extent can multimorbidity be viewed as a determinant of postural control in stroke patients?
    Author: Spruit-van Eijk M, Zuidema SU, Buijck BI, Koopmans RT, Geurts AC.
    Journal: Arch Phys Med Rehabil; 2012 Jun; 93(6):1021-6. PubMed ID: 22464737.
    Abstract:
    OBJECTIVE: To investigate the determinants of postural imbalance after stroke in geriatric patients admitted for low-intensity rehabilitation in skilled nursing facilities (SNFs), particularly the role of multimorbidity. DESIGN: Cross-sectional study design. SETTING: Fifteen SNFs. PARTICIPANTS: All patients who were admitted for rehabilitation after stroke in one of the participating SNFs (N=378) were eligible. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The Berg Balance Scale (BBS) was selected as a measure of standing balance and the Functional Ambulation Categories (FAC) as a measure of walking balance. RESULTS: Multimorbidity was present in 34% of the patients. The patients with multimorbidity differed from the patients without multimorbidity with respect to age, proprioception, and vibration sense, but not for any of the cognitive tests, muscle strength, or sitting balance. Patients with multimorbidity had, on average, lower scores on both outcome measures. In linear regression analyses, both the BBS and FAC were best explained by multimorbidity, muscle strength, and the interaction between muscle strength and static sitting balance (overall explained variance 66% and 67%, respectively), while proprioception added only to the variance of the FAC. CONCLUSIONS: Multimorbidity was independently related to postural imbalance after stroke in patients admitted for rehabilitation in SNFs. Muscle strength and the interaction of muscle strength with static sitting balance were important determinants of both standing and walking balance, indicating these factors as essential targets for rehabilitation.
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