View clinical trials related to Healthy.
Filter by:The purpose of Lunar OI (Orthostatic Intolerance) is to determine if there are differences between males and females in tolerance to and cardiovascular responses during different angles of head-up tilt simulating gravity levels less than or equal to Earth's gravity. Also, this study will determine if a gradient compression garment affects tolerance to tilting and the cardiovascular stress at different tilt angles. Males and females are being identified by biological sex. This will be a two-phased study design. In Phase I we will determine whether there are differences in the development of signs or symptoms of orthostatic intolerance between males and females when tilted head up on a table to different angles to simulate gravity levels that astronauts may experience when landing on or launching from the surface of the Moon. In Phase II, the tilt tests simulating the same gravity levels from Phase I will be repeated, but a custom-made lower-body compression garment will be worn to see if wearing the garment affects the development of orthostatic intolerance. For both study phases, before tilting, a drug will be administered to reduce the amount fluid in the blood (plasma) to levels similar to that experienced by astronauts during spaceflight.
The purpose of Fluid Loading Countermeasures is to determine how the volume of blood and of plasma (liquid part of blood) change during a normal day, how these are affected by drinking an additional amount of fluid either as water and salt tablets (as astronauts do) or an electrolyte beverage (similar to but tastes saltier than Gatorade®), and how altering the timing at which the additional fluid is consumed affects blood and plasma volume. This study observes how blood volume changes over ~9 hours of the day during 4 separate visits in healthy participants. During 1 visit participants will drink a small amount of water throughout the visit. During the other 3 study visits participants will drink the small amount of water plus either more water with salt tablets or an electrolyte solution. Consuming the additional fluids is called "fluid loading". This study is meant to simulate the food and fluid consumption of astronauts on landing day. The goal of this study is to determine the magnitude of plasma volume change that occurs with each condition of the protocol. (ICF 1.1, 3.1)
Fitness is an important determinant for health and influenced by using large muscles. Muscles respond to training. We want to know if adding arm exercise to leg exercise can provide a better training session for healthy individuals. If the strategy shows promise for healthy people then it might work for people with lung disease who have trouble training because of difficulty breathing. The purpose of this first study is to evaluate, in healthy people, a unique approach to training by determining if adding arm exercise to leg exercise can be endured longer than leg exercise alone.
Colorectal cancer is the most frequent tumor in our environment if both sexes are considered together. Every year almost 800 cases are diagnosed in the districts of Tarragona. A little more than half of colorectal cancers are cured with surgery, with or without the addition of complementary treatments with chemotherapy and/or radiation therapy. Those who are not cured is because at the time of diagnosis the disease has already spread or they spread after having been treated surgically with curative intent. The purpose of the EarlyCRC project is to determine whether metabolites (substances of low molecular weight) can be found in the urine and stool of patients with colorectal cancer or polyps that can be easily and cheaply differentiated (urine or stool analysis) between the patients affected by colorectal cancer or polyps, from healthy individuals. For the identification of these possible metabolites, the urine analysis will be performed using the usual techniques in metabolomics, which studies the existing metabolites in biological processes.
The main purpose of the trial is to compare the pharmacokinetics of insulin degludec and liraglutide as part of a combination product insulin degludec/liraglutide compared with Xultophy®. During the trial period, serials of blood samples will be collected from the participants at two dosing periods, in order to determine the concentration of insulin degludec and liraglutide. The total volume of blood taken throughout the whole trial period will be less than 400 mL. Participants will be asked to stay on daytime and overnight in the trial sites on some predefined days. For other outpatient days, participants need to attend the trial site as required for drug administration or required assessments.
This is a Phase 1, randomized, double-blind, placebo-controlled, single- and multiple-dose, first in human safety, tolerability, and pharmacokinetic study of SPY001-001 in healthy participants.
Social injustices, such as the absence of racial representation and culturally tailored programs in parks, may further discourage African American families from accessing and using these spaces. 10 Studies are needed to investigate how exposure to more equitable greenspace environments may support physical activity (PA) among African American families. Justice-focused, park-based PA interventions hold high promise for reducing health disparities and future cardiovascular diseases (CVD) and related chronic conditions (RCC) risk, thus carrying significant implications for the fields of public health, family medicine, and urban planning. This pilot study is a two-arm, parallel randomized controlled trial that will be conducted in partnership with community stakeholders from the Three River Park District (TRPD); TRPD parks are located in the Twin Cities region of Minnesota. This trial aims to evaluate the changes in PA, psychological health, sleep, and blood pressure among a cohort of African American parent-child dyads who will be randomized to two intervention conditions. The intervention conditions are: (1) a culturally tailored, nature-based program offered at the TRPD (hereafter, "NatureUplift"), and (2) NatureUplift plus a supplementary walking/hiking educational component (hereafter, "NatureUplift+Active"). Participant dyads will be randomized to NatureUplift or NatureUplift+Active.
The upper limbs play an essential role for safe and efficient walking in healthy persons and persons post-stroke. Nevertheless, in current post-stroke gait rehabilitation (research) the upper limbs are barely targeted. To address this gap, my project aims to investigate the selective motor control of the upper limbs during walking and the contribution of the cortical activity to the arm swing in independent walkers after stroke. To gain insight in the direct effects of stroke on the arm swing, the primary motor control of the arm swing will be evaluated by determining muscle synergies (i.e group of muscles working together as a task-specific functional unit). Additionally, the cortical activity (EEG-analysis) during walking of persons post-stroke will be compared to healthy controls and the relationship between stroke-induced changes in cortical activity and arm swing deviations will be assessed. Furthermore, I will evaluate whether improvements in cortical activity relate to improvements in primary motor control of the arm swing. This innovative project will be the first to investigate the direct coupling between the cortex and the muscle synergies in persons post-stroke during independent walking to investigate the arm swing. These fundamental insights in the primary motor control of the arm swing and the contribution of the cortical activity will allow to develop targeted interventions aiming to improve arm swing and as such optimize post-stroke gait rehabilitation. Research questions: 1. How can muscle synergies explain arm swing alterations in independent walkers after stroke? 2. How do stroke-induced changes in cortical activity relate to arm swing deviations in persons after stroke? 3. Are changes in primary motor control of the upper limb during walking related to normalization of brain activity in independent walkers after stroke?
The goal of this study is to understand what people understand from medical illustrations, and what meaning and emotions (such as anxiety) they derive from different design elements.
The purpose of this study is to explore variation in the impact of coffee on metabolic rate. The investigators plan to recruit healthy participants, half male and half female.