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Differences in physical function across dementia subtypes and cognitive decline : a cross-sectional study
Kristina Batič, Žiga Kozinc, Polona Rus Prelog, 2025, original scientific article

Abstract: Cognitive impairment significantly affects physical function in dementia patients, but variations across dementia types and levels of cognitive decline remain unclear. This retrospective cross-sectional study included 874 patients (80.75 ± 8.00 years; 60.4% female) with different dementia types and cognitive impairment levels. Six physical function tests were admisterd: the De Morton Mobility Index (DEMMI), 6-minute walking test (6MTW), 10-meter walking test (10MWT), hand grip strength (HGS), 30-second chair stand (30sSTS), and the timed “Up & Go” test (TUG). Cognitive function was assessed using the Mini-Mental State Examination (MMSE). The Mild Cognitive Imapirment (MCI) group outperformed Alzheimer's Dementia (AD) and Vascular Dementia (VaD) on DEMMI, 30sSTS and HGS (p < 0.001, η² = 0.012 to 0.052). Differences in the 6MWT were significant in ANOVA but disappeared after adjusting for sex and age (p = 0.066). Severe cognitive impairment was linked to significantly lower physical performance across all measures (p < 0.001, η² = 0.037 to 0.064). Physical function profiles vary by dementia type and cognitive decline level, highlighting the need for targeted interventions to address specific physical challenges.
Keywords: dementia, cognitive decline, physical function
Published in RUP: 22.02.2026; Views: 160; Downloads: 3
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High prevalence of probable sarcopenia and its associations with nutrition, cognitive, and physical function in hospitalized patients with Alzheimer’s clinical syndrome : a cross-sectional study
Vesna Simič, Nina Mohorko, Polona Rus Prelog, 2026, original scientific article

Abstract: Background: Probable sarcopenia, indicated by low handgrip strength, is a prevalent condition among hospitalized older adults and may reflect broader functional and nutritional decline. Methods: We examined differences in nutritional, functional, and cognitive status between Alzheimer’s clinical syndrome (ACS) patients with probable sarcopenia and those without sarcopenia. A cross-sectional analysis was conducted on 194 hospitalized older adults with ACS. Probable sarcopenia was defined using European Working Group on Sarcopenia in Older People (EWGSOP2) handgrip strength thresholds. Results: Patients with probable sarcopenia (n = 137) had significantly lower Mini-Mental State Examination (MMSE) scores, Geriatric Nutritional Risk Index (GNRI), albumin, hemoglobin, and gait speed compared to those without. After age and sex adjustment, MMSE (p = 0.023), GNRI (p = 0.002), hemoglobin (p = 0.022), albumin (p = 0.003), and gait speed (p < 0.001) remained significantly different. In the sex- and age-adjusted multivariable model (adjusted R2 = 0.442), higher nutritional risk (β = 0.26, p = < 0.001), lower MMSE scores (β = 0.17, p = 0.029), polypharmacy (β = −4.20, p = 0.002), and slower gait speed (β = 4.12, p = 0.010) were associated with reduced handgrip strength. In the multivariable binary logistic regression model (adjusted for age and sex), moderate or high nutritional risk and slow gait speed emerged as independent predictors of probable sarcopenia, with OR 5.14 (95% CI 1.34–19.75; p = 0.017) and OR 3.13 (95% CI 1.30–7.52; p = 0.011), respectively. Conclusions: Probable sarcopenia in hospitalized older adults with ACS is highly prevalent and is associated with higher nutritional risk, poorer cognitive and physical function, and polypharmacy; its early recognition may help to guide more targeted nutritional and functional interventions.
Keywords: sarcopenia, muscle strength, Alzheimer’s disease, cognitive function, gait speed, nutrition risk
Published in RUP: 25.01.2026; Views: 265; Downloads: 2
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Years lived with disability (YLDs) for 1160 sequelae of 289 diseases and injuries 1990-2010 : a systematic analysis for the Global Burden of Disease Study 2010
Theo Vos, Abraham D Flaxman, Mohsen Naghavi, Rafael Lozano, Catherine Michaud, Majid Ezzati, Kenji Shibuya, Joshua A. Solomon, Safa Abdalla, Victor Aboyans, Diego De Leo, 2012, original scientific article

Keywords: neglected tropical diseases, adjusted life years, iron-deficiency anemia, developing countries, depressive disorder, hearing impairment, cognitive function, mental disorders, risk factors
Published in RUP: 15.10.2015; Views: 4529; Downloads: 236
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