There are about 28871 clinical studies being (or have been) conducted in Canada. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
High blood pressure is a leading risk factor for cardiovascular disease. Traditionally, one of the ways to treat or prevent high blood pressure is to prescribe aerobic exercise training (i.e.brisk walking). Previous studies have shown that stretching is also very effective for reducing blood pressure. This is an exciting possibility because if stretching is more effective, it would change the way exercise is prescribed to people with elevated blood pressure. This study will now assess 20 individuals in a supervised stretching or walking program five days per week for 8 weeks to determine for certain whether stretching is superior for reducing blood pressure. This research will contribute to recommendations about the most effective exercise programs for reducing blood pressure and risk of cardiovascular disease.
Our proposed study is a 5-d double-blind randomised cross-over trial, seeking to simulate a training identification camp in competitive adolescent soccer players The purpose of the proposed study is to investigate whether increased protein consumption by Greek yogurt, compared to an isoenergetic carbohydrate (CHO) control supplement, consumed immediately following exercise training, prior to sleep and between breakfast and lunch, for a week during an intense training period (high volume, high intensity) will: - Attenuate the pro-inflammatory response (cytokines, acute phase proteins) - Reduced the severity of muscle damage and impairment (creatine kinase) - Maintain performance Secondary outcome measures: - Increase bone turnover (in favour of formation)
This study is a prospective, multicenter, randomized (1:1) controlled comparative effectiveness trial of a transseptal approach to left ventricular ablation compared to a retrograde aortic approach to prevent cerebral emboli and neurocognitive decline in adults with ventricular tachycardia (VT) and/or premature ventricular contractions (PVCs).
Nitrate supplements (beetroot juice, pure sodium nitrate) have become common among endurance athletes because the ingestion of exogenous nitrate leads to increased levels of nitric oxide (NO) in the body. Increased NO has been shown to have various performance enhancing effects such as increased muscle contractility, increased blood flow through vasodilation, mitochondrial biogenesis, and improved glucose uptake. Supplementation with exogenous forms of nitrate has also been shown to improve cycling performance in the oxygen deprived environment of simulated altitude through increased muscular oxygenation. Further research is emerging that suggests that dark chocolate (DC) may have similar effects through flavonoids, a bioactive micronutrient that increases the synthesis of NO and reduces the rate at which NO is removed from the blood. In addition to performance enhancement, the flavonoids in DC also have anti-inflammatory and antioxidant effects, which could reduce muscle damage after a bout of exercise and increase the rate at which the muscle recovers. The purpose of this research is to investigate the effects of DC on cycling performance and recovery in cyclists at altitude. it is hypothesised that the DC condition will result in superior metabolism during exercise and increase muscular oxygenation, leading to improved performance while enhancing recovery from exercise. Methods: 12 trained cyclists will be randomized to supplement with 160g of DC or an isocaloric placebo per day for 2 weeks in a cross-over study. After the 2-weeks of supplementation participants will attend a lab session in which they will cycle 90 minutes at 60% VO2max followed immediately by a 10km time trial (TT) at a simulated altitude of 1500m (15% O2). Plasma levels of blood glucose and lactate will be measured before, throughout, and after exercise while muscular and cerebral oxygenation will be measured continuously throughout exercise. Recovery of the knee extensors will be assessed before and immediately after exercise as well as 24 and 48 hours later by determining knee extensor strength and muscle pain.
The purpose of this study is to determine whether oral etrasimod is a safe and effective treatment for moderately to severely active ulcerative colitis.
Central Sensitization is an aspect of chronic pain and is associated with over-excitability of the central nervous system. Central Sensitization normally presents itself with other chronic syndromes such as Myofascial Pain Syndrome, so it is difficult to separate the characteristics of the two. The purpose of this study is to determine whether sensitizing healthy muscle using capsaicin, a chilli pepper extract, induces a regional change in ultrasound texture features of the targeted muscle, or the muscles in that are in close proximity. This regional change will be accompanied by electromyography (EMG) recordings to confirm the presence of abnormality. Topical capsaicin and injectable capsaicin will be applied at three different concentrations, 0ug(placebo effect),50ug and 100ug. Research Questions: Does sensitization cause a significant regional change in the texture features of the targeted muscle or surrounding muscles? Is this regional change confirmed by abnormality of motor unit firing rates or EMG amplitudes? Is the response dose dependent? Does the induced central sensitization cause a change in force steadiness? Experimental Protocol: The physician on site will apply surface and intramuscular EMG sensors to the trapezius. A goniometer will be placed on the subjects arm to detect position. Following this, an ultrasound image of the trapezius, supraspinatus and infraspinatus will be taken.The participant will perform an increasing and decreasing contraction.The subject will then have capsaicin injected into their trapezius or applied onto their skin. The exercise and measurements will then be repeated. The ultrasound will be acquired by the Sonosite ultrasound system. The EMG data will be acquired by the Delsys Trigno EMG system for the surface EMG and the Cadwell Sierra Wave system for the intramuscular EMG. The data will be processed through Delsys EMGworks software and MATLAB. Texture features of the pre and post injection ultrasound images will be compared. Decomposition of motor units will allow for the analysis of motor unit action potential firing rate and amplitudes. Analysis of force steadiness will also be calculated via the goniometer. Overall, the findings from this study should present preliminary evidence to inform central sensitization's effects on regional muscle structure changes, functional changes and motor unit activity.
This exploratory study will characterize the efficacy profile of an experimental dual active 5 percent (%) potassium nitrate/0.454% stannous fluoride dentifrice, compared to a single active 0.454% stannous fluoride desensitizing dentifrice, over an 8-week treatment period.
This study investigates the impact of mindfulness-based intervention for children undergoing a blood-draw and their accompanying parent on (a) child ratings of pain and fear, (b) parent and child ratings of parent distress, and (c) parent perceptions of child pain and fear. Half of the parent-child pairs will receive the mindfulness-based intervention, while half will receive an unfocused-attention task to serve as a comparison with no active component.
The hypothesis is that consumption of pulse-based foods (i.e. containing chickpeas, lentils, and split peas) during the workday will improve insulin sensitivity, glucose tolerance, blood lipids, body composition, and blood pressure in sedentary office workers.One-hundred office workers from a university campus will participate in a cross-over study where they will be randomized (i.e. assigned by chance) to receive pre-packaged pulse-based lunches and snacks to replace their usual lunches/snacks during the work day OR to continue consuming their usual diets for two months. After the first dietary intervention, they will undergo a 1-month "wash-out" and then participate in two months of the opposite dietary intervention. The main outcome to be assessed is change in glucose and insulin (i.e. blood sugar control) determined during an oral glucose tolerance test. Secondary outcomes include changes in body composition, lipids, and blood pressure. During the pulse-based diet phases, participants will be supplied with a ready-to-eat lunch and two snacks to eat during each workday. These will contain a total of 150g/d dry weight (250g/d wet weight) pulses
Creatine monohydrate is important for sustaining phosphocreatine stores in tissues such as muscle and brain. Phosphocreatine is an important source of energy in these tissues. Supplementation with creatine monohydrate is effective in healthy and clinical populations for improving muscle and brain function. The purpose of our study is to determined whether creatine supplementation is effective during resistance training for improving muscle and brain function in people recovering from stroke.