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This study evaluates whether surgical removal of the parathyroid gland (parathyroidectomy) improves physical function and mobility in older adults with primary hyperparathyroidism (PHPT). PHPT, a common endocrine disorder in older adults, is associated with reduced muscle strength, mobility, and quality of life. This prospective observational study will enroll up to 80 participants aged 60 and older undergoing parathyroidectomy at UF Health. Participants will complete physical performance tests, wear an Actigraph device to assess physical activity, and provide blood samples for biomarker analysis at pre- and post-operative time points. The goal is to characterize changes in physical function and activity following surgery and to identify biomarkers that may predict mobility improvements. Findings will help inform future larger-scale studies and could expand surgical indications for PHPT in older adults.
Lower extremity revascularization combined with supervised exercise significantly improves walking performance compared to revascularization alone in people who have PAD without limb threatening ischemia. However, supervised exercise is inaccessible or burdensome for most PAD patients. Investigators hypothesize that home-based exercise combined with lower extremity revascularization will significantly improve walking performance compared to revascularization alone in patients with PAD undergoing revascularization for disabling PAD. Investigators further hypothesize that inorganic nitrate, a major source of nitric oxide (NO) abundant in beetroot juice, will improve walking performance after lower extremity revascularization, compared to placebo. In preclinical models, NO inhibits inflammation, neointimal hyperplasia, thrombosis, and vascular smooth muscle cell migration at sites of revascularization. NO increases angiogenesis and perfusion, repairs skeletal muscle damaged by ischemia, and stimulates mitochondrial activity. In a randomized clinical trial with a 2 x 2 factorial design, the trial will test the following two primary hypotheses in 386 patients randomized within three months of a successful lower extremity revascularization for disabling PAD: First, that home-based exercise combined with lower extremity revascularization will improve six-minute walk distance more than revascularization alone at 6-month follow-up (Primary Aim #1). Second, that nitrate-rich beetroot juice combined with lower extremity revascularization will improve six-minute walk, compared to placebo combined with revascularization at 6-month follow-up (Primary Aim #2).
The goal of this interventional study is to learn about the biomechanical factors underlying the beneficial changes in children with cerebral palsy after using individually-adapted stand-on ride-on power mobility devices (PMD). The main questions we aim to answer are: * How does the use of stand-on PMDs affect static balance in children with cerebral palsy? * How does the use of stand-on PMDs affect dynamic balance and mobility function in children with cerebral palsy? Children ages 4-6 years old with cerebral palsy (GMFCS levels II and III) will: * Use individually-adapted stand-on PMDs for three months. * Undergo tests to measure static balance, dynamic balance, and mobility function before and after the intervention. * Receive a full biomechanical assessment (kinematics, kinetics, muscle activity, gait spatiotemporal characteristics). Researchers will compare pre-intervention and post-intervention measurements to quantify improvements in balance, muscle activation, and mobility.
The overall objective of the proposed research is to begin to better understand the potential benefits and limitations of ankle -foot orthosis (AFO) use in the context of mobility and balance during gait for individuals with Charcot-Marie-Tooth disease (CMT). These benefits will be studied in comparison to those offered by surgical correction. We will accomplish by having subjects undergo mobility and balance tests in our gait analysis lab.
The purpose of this study is to develop a unique structure and delivery of home-based exercise through multidisciplinary expertise of cardiovascular medicine specialists and cardiac physiologists using an Interactive Care Plan.
The purpose of this project is to examine the effects of virtual reality greenspace exposure on physiological and affective acute stress responses among adults with mobility impairments.
Approximately 50% of people with multiple sclerosis (MS) use a wheelchair within 30 years of the initial diagnosis. Wheelchair use in MS is often associated with fatigue as a consequence of muscle weakness. Indeed, fatigue, a prevalent consequence of MS, often becomes debilitating and exhausts energetic resources when carrying-out tasks of daily life and/or interacting with the community, as these require ambulatory mobility. This experience of excessive fatigue has its roots in muscle weakness and results in reliance on a wheelchair for mobility, and the dependency on a wheelchair may further reduce muscular strength, particularly of the lower extremities. We propose that wheelchair users with MS can increase muscular strength through a personalized exercise rehabilitation, and this in turn will improve ambulatory performance and possibly reduce fatigue. To date, no research has examined the effects of this specific exercise rehabilitation program (GH method) on physical function and other disease-related outcomes in persons with MS who use wheelchairs as a primary mobility device.
The investigators propose a pilot randomized trial to gather preliminary data to test the hypothesis that Fisetin will reduce abundance of senescent cells in blood, skeletal muscle, and both subcutaneous and inter muscular adipose tissue and improve 6-minute walk distance in 34 people with peripheral artery disease (PAD). the investigators will determine whether greater declines in abundance of cells with senescent markers are associated with greater improvement in 6-minute walk distance in people with peripheral artery disease. In exploratory analyses, the investigators will assess whether Fisetin reduces interleukin-6 (IL-6) and novel senescent markers in adipose tissue, muscle, and/or blood.
The emergence of crawling and walking is significantly delayed in infants with Down syndrome (DS), but the development of independent mobility provides infants with new opportunities for exploring the environment and interacting with objects and people that are important foundations for early learning. Increasing infant mobility early in development with body weight supported harness systems may support infant exploration, communication, and social interaction. This project will set the stage for the first clinical trial of a mobility-related intervention specifically tailored for infants with DS by testing the feasibility of harness systems with infants and families and identifying measures that will serve as primary outcome variables. Upon completion of this pilot project, necessary preliminary data and experience required for an in-home, high-impact clinical trial for infants with DS will have been obtained.
This protocol seeks to analyze patient outcomes of the standard of care, monitored group exercise regimen of high-load resistance training and functional exercises with compound movements under close supervision on individuals who have been treated for cancer.