View clinical trials related to Healthy Volunteers.
Filter by:The goal of this randomized cross-over trial is to learn about the effect of a single bout of 20-min mindfulness-based high-intensity interval training (MF-HIIT), MF-only, and HIIT-only in relative to sitting rest on executive function (EF) in 10-12 years old children. The main question it aims to answer are: Question 1: Whether a single bout of 20-min MF-HIIT has larger beneficial effect on EF performance than that following a 20-min session of MF-only and HIIT-only in relative to the sitting rest Question 2: Whether a single bout of 20-min MF-HIIT has a larger beneficial effect on brain functioning, as measured by the N2 and P3 components of event-related potential (ER) during EF performance than that following a 20-min session of MF-only and HIIT-only in relative to the sitting rest Participants will visit the laboratory on 5 separate days (> 2-day washout between days) in which they have not previously participated in structured physical activities. Participants will complete the testing and/or receive treatments below: Day 1: - Kaufman Brief Intelligence Test (KBIT) to assess intelligence quotient - Treadmill-based exercise test to measure cardiorespiratory fitness (maximum oxygen consumption) Days 2-5 - Each day, participants will complete each of the four intervention conditions (MF-HIIT, MF-only, HIIT-only, sitting) - Participants' heart rate and self-reported affect and rating of physical exertion will be measured - Participants will complete a modified flanker task and a task-switching task to assess inhibitory control and cognitive flexibility - Participants will wear an EEG cap to measure the N2 and P3 components of the event-related potential during the inhibitory control and cognitive flexibility performance Researcher will compare the cognitive outcome measures following the MF-HIIT, MF-only, and HIIT-only conditions with the sitting condition to see if MF and HIIT has beneficial effects on children's EF. Further, researcher will compare the cognitive outcome measures following the MF-HIIT compared with MF-only and HIIT-only conditions to see if combining MF with HIIT has greater beneficial effects on children's EF than MF and HIIT alone.
The aim of this study is to investigate different formulations of S-337395.
Background: Proteins are essential to the health and structure of the cells that make up body tissues. Most proteins become damaged over time and are replaced with new ones. This process is called "protein turnover." Stress, disease, and aging can affect this process. Researchers want to better understand how aging affects protein turnover. Objective: To measure rates of protein turnover in healthy adults. Eligibility: Healthy people aged 20 years and older with a body mass index between 20 and 30. Design: Participants will have 6 study visits over 4 to 6 weeks. They will fast 12 hours before each visit. Participants will be screened. They will have a physical exam, with blood and urine tests and tests of their heart function. They will lie down while blood pressure cuffs are used on their arms and legs. Participants will be given bottles of heavy water to drink at home on a schedule for 21 days. Each bottle holds about 3.5 tablespoons. Heavy water is odorless, colorless, and tasteless, like normal drinking water. It is safe to drink and has been used in research for many years. Participants will have tests during study visits, including: Imaging scans of a leg. Exercise on a treadmill. Biopsies of muscle, skin, and fat: Small samples of tissue will be cut from the calf and abdomen. Resting metabolic rate: Participants will lie still and breathe into a mask for 20 minutes. Knee/grip strength: Participants will do strength tests with their legs. They will squeeze a device with their hands. D3-Creatine: Participants will take 1 pill of D3-Creatine, which occurs naturally in muscle.
The main aim of this study is to check what the body of a healthy adult who either fasted or had eaten does to TAK-721 and how TAK-721 is distributed in and removed from the body. Other aims are to learn how safe the treatment with TAK-721 is and how suitable the TAK-721 is for healthy adults who either fasted or had eaten. All participants will receive TAK-721 but half will be assigned by chance to the participant group who are fasting first then getting the high-fat/high-calorie meal later or the group who gets meal first and fasts later. The group assignment will be switched once during the course of the study so that all participants will receive TAK-721 in both a fasted or fed condition.
The primary objective of the study is to evaluate the effects of a proton pump inhibitor (PPI) [rabeprazole] on BIIB122 pharmacokinetics (PK) after a single dose in healthy participants. The secondary objective of the study is to evaluate the safety and tolerability of BIIB122, with and without a PPI (rabeprazole), after a single dose in healthy participants.
The primary objective of the study is to show equivalence in pharmacokinetics (PK) of BIIB800 and Actemra following SC administration of a single dose to healthy male participants. The secondary objective of the study is to evaluate PK over time, clinical safety, pharmacodynamic (PD) profiles and immunogenicity of BIIB800 and Actemra.
The goal of this randomized clinical trial is to determine the effects of consuming the Close Combat Assault Ration (CCAR) compared to the First Strike Ration (FSR) during a 7-day strenuous military training on energy intake and energy balance in healthy, Active Duty Warfighters. The main questions it aims to answer are: - Will consuming the CCAR result in lower energy intake or energy balance compared to consumption of the FSR? - Will consuming the CCAR result in lower lower body strength or anaerobic power compared to consuming the FSR? - Will those consuming the CCAR report lower ration acceptability or greater gastrointestinal side effects compared to those consuming the FSR? Participants will be asked to consume either the CCAR or FSR as the sole nutrition source during a 7-day field training exercise (FTX). The vertical jump test, running-based anaerobic sprint test, and lower-body strength pull will be conducted pre and post the 7-day FTX to assess physical performance. Energy expenditure and intake will be measured by the doubly-labelled water method and dietary logs, respectively. Surveys will be completed to assess ration acceptability and gastrointestinal symptoms. Researchers will compare the CCAR and FSR groups to see if their consumption impacted energy intake, energy balance, physical performance, ration acceptance, or gastrointestinal side effects.
A Single Center, Single Dose, Double-blind, Randomized, Placebo-controlled Dose-Escalating Study to Evaluate Safety, Tolerability and Pharmacokinetics of Subcutaneously Administered MD-18 in healthy subjects.
The goal of this randomized controlled trial is to learn about the effect of a 12-week school-based intervention combining mindfulness with high-intensity interval training (MF-HIIT), MF-only intervention, and HIIT-only intervention in relative to sedentary activities on executive function (EF) in 10-12 years old children. The main question it aims to answer is whether a 12-week school-based MF-HIIT intervention has larger beneficial effect on EF performance than that following a 12-week school-based MF-only and HIIT-only in relative to the sedentary activities. Multiple cohorts of participants will be recruited to participate this one-semester study, including the pretest, intervention, and posttest phases. During the pretest phase, participants an their parents will complete the following 1. Kaufman Brief Intelligence Test (KBIT) to assess intelligence quotient 2. Fitnessgram test to assess aerobic capacity, muscle endurance, flexibility, and body mass index 3. Child and Adolescent Mindfulness Measure (CAMM) questionnaire to assess dispositional mindfulness 4. Computerized tasks to assess EF 5. Parent-reported demographic and health information Following the pretest phase, participants will receive the 12-week classroom-based intervention, with the classroom as the intervention unit. Following the intervention and during the posttest phase, participants will complete the fitness, measures, EF measures, and dispositional mindfulness measure again. Researcher will compare the EFn outcome measures following the MF-HIIT, MF-only, and HIIT-only interventions with the sedentary activity intervention to see if MF and HIIT has beneficial effects on children's EF. Further, researcher will compare the EF measures following the MF-HIIT compared with MF-only and HIIT-only interventions to see if combining MF with HIIT has greater beneficial effects on children's EF than MF and HIIT alone.
The main aim of this study is to find out how more than one dose of TAK-279 changes the heart-rate corrected QT (QTc) interval of healthy adults. A QTc interval is a measurement on an electrocardiogram (ECG) and shows the time when the heart contracts until it finishes relaxing. Other aims are to learn about the effect of several doses of TAK-279 on other ECG measurements of healthy adults, how the body of a healthy adult processes TAK-279 and moxifloxacin (pharmacokinetics), and to learn about the side effects of TAK-279 and how well it is tolerated when given to healthy adults. The participants will be given TAK-279 and moxifloxacin or a placebo for 7 days. During the study, participants will need to stay at the clinic for 10 days.