Factors associated with impairment in gait speed in older people with clinically normal gait. A cross-sectional study
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ORIGINAL ARTICLE
Factors associated with impairment in gait speed in older people with clinically normal gait. A cross‑sectional study M. A. Caballero‑Mora1,2,3 · L. Rodríguez Mañas2,3 · M. Valdés‑Aragonés1,2 · I. García‑Sánchez2 · C. Alonso‑Bouzon1 · M. Castro Rodríguez1 · L. Nuñez‑Jimenez1 · A. Esteban4 · A. Rodriguez‑Laso2 Received: 25 March 2019 / Accepted: 28 March 2019 © Springer Nature Switzerland AG 2019
Abstract Background Health professionals commonly use gait speed in the evaluation of functional status in older people. However, only a limited number of studies have assessed gait speed in the absence of disorders of gait, using confounding factors and exclusion criteria coming from studies conducted in younger people. Our study aims to analyse which factors are associated with gait speed in older people with normal clinical gait. Methods An observational cross-sectional study was conducted in 119 community-dwelling residents without relevant comorbidities (Charlson index 85) and normal gait by visual exploration. Exclusion criteria included suffering from any illness that could modify the characteristics of gait, terminal status or the presence of an acute medical illness in the past 3 months. We used a stepwise linear regression of several variables (sociodemographic characteristics, cognition, body composition, drugs, falls, sarcopenia, frailty and physical activity) on 6-metre gait speed. Results The mean age was 78 years (range 70–96 years) and 71.4% were women. Variables that remained associated with gait speed in the multivariate final model were age (B = − 0.020, p
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