Importance Low levels of vitamin D are associated with elevated blood pressure (BP) and
future cardiovascular events. Whether vitamin D supplementation reduces BP and which …

Background Patient portals offer modern digital tools for older adults with multiple chronic
conditions (MCC) to engage in their health management. However, there are barriers to portal …

… Author Contributions: RS Boxer: study concept and design, acquisition of subjects and
data, analysis and interpretation of data, and preparation of manuscript. D. Dauser, …

… Boxer: intellectual content of the paper by analysis and interpretation of the results and
drafting and revision of the manuscript. All authors gave final approval to the manuscript …

Objectives : The aim of this study was to investigate the effect of vitamin D 3 on physical
performance in patients with heart failure (HF). Background : HF is associated with functional …

Exercise can cause a decrease in serum ionized calcium (iCa) and increases in parathyroid
hormone (PTH) and bone resorption. We used a novel intravenous iCa clamp technique to …

Background In 2012, nearly one-third of adults 65 years or older with Medicare discharged
to home after hospitalization were referred for home health care (HHC) services. Care …

Background Older adults with heart failure (HF) often need caregivers to assist with care, yet
little is known about the health literacy of both patients and their caregivers. The objective of …

Patients with heart failure (HF) are at increased risk for frailty, and identification is challenging.
The authors assessed the distance on the 6‐minute walk test (6MWT) as a measure of …

… Funding: Dr Boxer and this work are supported by grant KL2RR024990 and in part by
American Heart Association Scientist Development Grant 0635055N and the Joan C. Edwards …