216 research outputs found
Identifying a cutâoff point for normal mobility: a comparison of the timed âup and go' test in communityâdwelling and institutionalised elderly women
Background:âphysical mobility testing is an essential component of the geriatric assessment. The timed up and go test measures basic mobility skills including a sequence of functional manoeuvres used in everyday life. Objectives:âto create a practical cutâoff value to indicate normal versus below normal timed up and go test performance by comparing test performance of communityâdwelling and institutionalised elderly women. Setting and participants:â413 communityâdwelling and 78 institutionalised mobile elderly women (age range 65-85 years) were enrolled in a crossâsectional study. Measurements:âtimed up and go test duration, residential and mobility status, age, height, weight and body mass index were documented. Results:â92% of communityâdwelling elderly women performed the timed up and go test in less than 12 seconds and all communityâdwelling women had times below 20 seconds. In contrast only 9% of institutionalised elderly women performed the timed up and go test in less than 12 seconds, 42% were below 20 seconds, 32% had results between 20 and 30 seconds and 26% were above 30 seconds. The 10th-90th percentiles for timed up and go test performance were 6.0-11.2 seconds for communityâdwelling and 12.7-50.1 seconds for institutionalised elderly women. When stratifying participants according to mobility status, the timed up and go test duration increased significantly with decreasing mobility (KruskallâWallisâtest: p<0.0001). Linear regression modelling identified residential status (p<0.0001) and physical mobility status (p<0.0001) as significant predictors of timed up and go performance. This model predicted 54% of total variation of timed up and go test performance. Conclusion:âresidential and mobility status were identified as the strongest predictors of timed up and go test performance. We recommend the timed up and go test as a screening tool to determine whether an inâdepth mobility assessment and early intervention, such as prescription of a walking aid, home visit or physiotherapy, is necessary. Communityâdwelling elderly women between 65 and 85 years of age should be able to perform the timed up and go test in 12 seconds or les
An algorithm for the nonlinear optical susceptibilities of dipolar molecules, and an application to third harmonic generation
Gender-specific hip fracture risk in community-dwelling and institutionalized seniors age 65years and older
Summary: In this study of acute hip fracture patients, we show that hip fracture rates differ by gender between community-dwelling seniors and seniors residing in nursing homes. While women have a significantly higher rate of hip fracture among the community-dwelling seniors, men have a significantly higher rate among nursing home residents. Introduction: Differences in gender-specific hip fracture risk between community-dwelling and institutionalized seniors have not been well established, and seasonality of hip fracture risk has been controversial. Methods: We analyzed detailed data from 1,084 hip fracture patients age 65years and older admitted to one large hospital center in Zurich, Switzerland. In a sensitivity analysis, we extend to de-personalized data from 1,265 hip fracture patients from the other two large hospital centers in Zurich within the same time frame (total nâ=â2,349). The denominators were person-times accumulated by the Zurich population in the corresponding age/gender/type of dwelling stratum in each calendar season for the period of the study. Results: In the primary analysis of 1,084 hip fracture patients (mean age 85.1years; 78% women): Among community-dwelling seniors, the risk of hip fracture was twofold higher among women compared with men (RRâ=â2.16; 95% CI, 1.74-2.69) independent of age, season, number of comorbidities, and cognitive function; among institutionalized seniors, the risk of hip fracture was 26% lower among women compared with men (RRâ=â0.77; 95% CI: 0.63-0.95) adjusting for the same confounders. In the sensitivity analysis of 2,349 hip fracture patients (mean age 85.0years, 76% women), this pattern remained largely unchanged. There is no seasonal swing in hip fracture incidence. Conclusion: We confirm for seniors living in the community that women have a higher risk of hip fracture than men. However, among institutionalized seniors, men are at higher risk for hip fracture
Leading-order QCD Analysis of Neutrino-Induced Dimuon Events
The results of a leading-order QCD analysis of neutrino-induced charm production are presented. They are based on a sample of 4111 \numu- and 871 \anumu-induced opposite-sign dimuon events with , , observed in the CHARM~II detector exposed to the CERN wideband neutrino and antineutrino beams. The analysis yields the value of \linebreak the charm quark mass and the Cabibbo--Kobayashi--Maskawa matrix element . The strange quark content of the nucleon is found to be suppressed with respect to non-strange sea quarks by a factor
Experimental search for muonic photons
We report new limits on the production of muonic photons in the CERN neutrino beam. The results are based on the analysis of neutrino production of dimuons in the CHARM II detector. A CL limit on the coupling constant of muonic photons, is derived for a muon neutrino mass in the range eV. This improves the limit obtained from a precision measurement of the anomalous magnetic moment of the muon by a factor from 8 to 4
Produção de biomassa para geração de energia em povoamentos de Pinus taeda L. com diferentes idades
Variabilidade genética de germoplasma tradicional de feijoeiro comum na região de Cåceres-MT
Seleção de genĂłtipos de alface para cultivo protegido: divergĂȘncia genĂ©tica e importĂąncia de caracteres
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