Vincenzo Valiani

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BACKGROUND Fatigue is a common complaint in older adults, often not associated with underlying medical conditions. The purpose of this study was to investigate metabolic rate (MR) of walking, walking performance, and perception-based exertion during walking in older adults with and without idiopathic chronic fatigue (ICF). METHODS 20 older adults (aged(More)
UNLABELLED Background: Age-related changes in pulmonary function increase respiratory muscle work. In the face of this increased demand, poor muscle mass, frequently associated with age and multi-morbidity, can reduce endurance and strength of respiratory muscles. Furthermore, poor muscle mass may per se contribute to exercise intolerance and lower physical(More)
In the last decade, the association between diet and cognitive function or dementia has been largely investigated. In the present article, we systematically reviewed observational studies published in the last three years (2014-2016) on the relationship among dietary factors and late-life cognitive disorders at different levels of investigation (i.e.,(More)
OBJECTIVE To evaluate the predictive value of the Activity subscale of the Braden Scale for Predicting Pressure Sore Risk in assessing mobility impairment and recovery among hospitalized older adults. DESIGN Retrospective cohort study. SETTING UF Health Shands Hospital, University of Florida, Gainesville, Florida. PATIENTS 19,769 older adults (≥65(More)
BACKGROUND For over 20 years, normative data has guided the prescription of physical activity. This data has since been applied to research and used to plan interventions. While this data seemingly provides accurate estimates of the metabolic cost of daily activities in young adults, the accuracy of use among older adults is less clear. As such, a thorough(More)
OBJECTIVES To examine the relationship between primary diagnoses and mobility impairment and recovery among hospitalized older adults. DESIGN Prospective cohort study. SETTING UF Health Shands Hospital, an 852-bed level I trauma center located in Gainesville, Florida. PARTICIPANTS A total of 18,551 older adults (≥65 years) with 29,148 hospitalizations(More)
OBJECTIVES To explore the feasibility and acceptability of a new home-based exercise technology among older adults and to evaluate its efficacy on physical performance measures. DESIGN Longitudinal clinical trial. SETTING Oak Hammock at the University of Florida, a nursing home located in Gainesville, Florida. PARTICIPANTS Twelve pre-disabled older(More)
BACKGROUND Total daily energy expenditure (TEE) is composed of resting metabolic rate (RMR), post-prandial thermogenesis and activity energy expenditure (AEE). Higher AEE is strongly associated with lower mortality and physical limitations among older adults, but factors that predict changes in AEE in septu and octogenarians are not clearly understood. (More)
PURPOSE Accelerometer activity counts are used to objectively categorize physical activity levels. We examined the association between accelerometer activity counts and metabolic effort in older adults. METHODS Forty-five older adults (76.3 ± 5.1 yr) completed a 400-m walk at both a usual and a rapid pace. A portable metabolic unit measured pulmonary gas(More)
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