Vitamin D3 Supplementation and Stress Fracture Occurrence in High-Risk Collegiate Athletes
Vitamin D DeficiencyStress Fracture2 moreThe main objective of this study is to find a correlation between vitamin D deficiency and stress fracture occurrences in athletes who participate in high-risk activities. These high-risk athletes undergo elevated bone turnover, which requires adequate levels of vitamin D in order to support bone health. It is hypothesized that providing supplemental treatment to athletes showing lower than normal serum vitamin D levels will decrease the occurrence of stress fractures. By recording the dates and specific occurrences of fractures, it may be possible to correlate injury rates with seasons, providing more supportive data to pre-existing literature. This area of research is lacking in the quantity of prospective studies. Previous studies primarily focus on adolescent, elder, or military recruit populations. While literature has shown that vitamin D plays an important role in bone health, there are no previous studies that directly examine vitamin D deficiency and supplemental treatment in conditioned collegiate athlete populations. This study will add to the existing knowledge and will provide a more specific analysis for athletes.
Mind-Body Modalities for Nursing Students
Stress ReactionStress3 moreBackground: Nursing students around the world can experience tremendous stress due to their multi-faceted responsibilities. Stress is related to negative health and academic outcomes. Mind-body connection modalities have been used successfully to reduce stress and improve health among healthy and ill individuals in various cultures, but their effects have not yet been studied in the Arab culture. Thus, the purpose of this study was to examine and compare the effects of three of such modalities including progressive muscle relaxation (PMR), guided imagery (GI), and mindfulness meditation (MM) on stress and health outcomes in Jordanian nursing students. Methods: Using a randomized controlled design, 124 nursing students will be randomly assigned to 4 groups at a large university in Jordan. The 3 experimental groups (PMR, GI, and MM) will participate in 5 30-minute sessions (one session/week for 5 weeks) led by experienced trainers, in a private room during their clinical days. The control group will stay calm for 30 minutes during introducing the study interventions in another room at the university. The health outcomes will be measured at baseline (Time 1) and the end (Time 3) of the intervention in each group using different physical and self-report measures classified into different health categories such as cognitive health outcomes (executive brain function, stressful appraisal, mindfulness), physical health outcomes (e.g. physical symptoms, heart rate, blood pressure, neurobiological markers such as dopamine, serotonin, cortisol, adrenaline, and noradrenaline), and psychological health outcomes (e.g. depression, anxiety).
Explorative Open Label Study of Efficacy Profile of Neurexan® in Experimental Acute Stress Setting...
Acute Stress ReactionThe purpose of this study is to explore the efficacy of acutely dosed Neurexan using an experimental stress test called the Trier Social Stress Test
Norwegian Cartilage Project - Microfracture
Knee InjuryCartilage Injury114 patients between 18 and 50 years with an isolated focal cartilage defect in the knee will be randomized to either receive arthroscopic microfracture or arthroscopic debridement. Both groups will then undergo a systematic physiotherapy training regime for 6-9 months. The groups will then be compared for results, after 3, 6, 12 and 24 months, by using validated patient reported outcome scores (Lysholm, KOOS, Tegner) and EQ5D as well as clinical examination and radiological findings at 2 years (MRI).
Trial Comparing BST-CarGel and Microfracture in Repair of Articular Cartilage Lesions in the Knee...
Knee InjuriesThis study will investigate whether the treatment of damaged cartilage in the knee with BST-CarGel will increase the amount and quality of cartilage repair tissue when compared with microfracture alone. Furthermore, the effect of BST-CarGel in decreasing cartilage related pain and improving cartilage-related function in the knee will be assessed.
Detecting and Assessing Leg and Foot Stress Fractures Using Photon Counting CT
Stress Fracture FootStress Fracture Ankle3 moreStress fractures (fatigue or insufficiency fracture) are caused by the mismatch between bone strength and chronic stress applied to the bone. The vast majority of these fractures occur in the lower extremity. Early-stage diagnosis is crucial to optimize patient care. Appropriate imaging is relevant in confirming diagnosis after clinical suspicion of stress fractures. Radiographs have low sensitivity, so a relevant number of fractures go undetected. MRI has a high sensitivity, but its availability is limited, and its respective examination time is prolonged. This study investigates the diagnostic accuracy of PCCT in lower extremity stress fractures as a dose-saving technology, guaranteeing an examination according to the ALARA-principle (as low as reasonably achievable).
Stress-related Predictor Profiles in Human Addiction
Alcohol Use DisorderStress Reaction5 moreLong-term aim is the definition of a setup of mobile sensors and their integration in a mobile infrastructure that allows the prediction of stress related alcohol intake in an ambulatory setting. Here, we aim to identify stress- and alcohol cue-related physiological markers in a lab experiment to assess interactions between acute psychological vs. physical stress exposure and alcohol cue-exposure regarding their effects on measures relevant for the development and maintenance of Alcohol Use Disorder (AUD). Further, we aim to identify neural correlates in brain circuits of motivational, cognitive, and affective processing. In addition to applying established stress-related markers, we will integrate innovative sensor-based measures.
Explorative Efficacy Profile of Neurexan® in an Experimental Acute Stress Setting in Healthy Subjects...
Acute Stress ReactionThe purpose of this study is to evaluate the efficacy of acutely dosed Neurexan using an experimental stress test called the Trier Social Stress Test
Neuronal Correlates of Neurexan® Action in Mildly to Moderately Stressed Probands
Acute Stress ReactionThe purpose of this study is to explore the effect of Neurexan® on the brain response when participants undergo an emotional stressful condition in verum compared to placebo.
RCT of ChondroCelect® (in an ACI Procedure) vs Microfracture in the Repair of Cartilage Defects...
Articular Cartilage Lesion of the Femoral CondyleThis is a phase III, multicenter, open-label, randomized controlled trial of ChondroCelect® in an Autologous Chondrocyte Implantation (ACI) procedure compared to the procedure of microfracture (MF) in the repair of symptomatic cartilage lesions of the knee. Eligible patients attended two screening visits and were booked for arthroscopy approximately 2 weeks later. At that time, patients were randomized to either ACI with ChondroCelect® or to MF, a procedure in which the subchondral bone is perforated to allow a bloodcloth to form scar tissue. Patients randomized to MF had the procedure performed at the time of their arthroscopy; those randomized to ACI with ChondroCelect® had their cells harvested during the arthroscopy and then returned to the clinic approximately 4 weeks later for an open knee procedure, during which the ACI procedure using ChondroCelect® was performed. Patients subsequently followed the same rehabilitation program and had follow-up assessments up to 12 months post-surgery. The 12-month visit was the end-of-study visit for the TIG/ACT/01/2000 protocol. Subject to satisfying the eligibility criteria, patients who had participated in the initial 12 month trial could enter the extension trial. The 12-month visit for the initial study was the baseline visit for the extension study. During the extension study, patients have follow-up assessments up to 60 months post-surgery.