View clinical trials related to Sport Performance.
Filter by:This study will be performed with the aim to evaluate the effects of probiotic supplementation on sport performance and gut damage. Participants will be divided into two groups, placebo and experimental group. With the purpose to assess the effects of probiotics on the gut damage, a strenuous exercise session will be performed, and then blood samples will be taken to observe the variation of the selected intestinal damage marker. 24 hours after this strenuous session, performance tests will be performed. After the 4 weeks of supplementation, the same procedure will be followed to evaluate the effect of probiotics.
Pre-workout supplements (PWS) consumption in recreationally or physically trained males lead to many performance-enhancing benefits, including improvements in mean power output during single and repeated sprints, agility, reaction times, lower body muscular endurance and reduced fatigue. PWS ingestion also improves anaerobic performance and prolongs time to exhaustion during high-intensity intermittent exercise. However, PWSs' effectiveness is not constant, as they do not alter anaerobic power, jumping performance or blood lactate concentrations after a training session, at least in recreationally trained males and strength-power athletes. Moreover, the effects of long-term PWS supplementation, where some nutritional agents were combined (e.g., β-alanine, creatine, citrulline malate, etc.) to assess endurance-trained runners or elite cyclists' performance, are mixed and less clear. Even though the popularity of PWS use has increased among trained/professional athletes, most of the data in this area are derived from recreationally and not from well-trained athletes of a competitive level (especially in team sports). Therefore, the present study aimed to examine the acute and chronic effects of a PWS, containing 200 mg caffeine, 3.3 g creatine monohydrate, 3.2 g βalanine, 6 g citrulline malate and 5 g BCAA per dose, on shooting, jumping, sprinting, agility, aerobic and anaerobic performance in well-trained basketball players.
Read more »Only very few studies have prospectively looked at the effect of repeated intensive plasma donation. In collaboration with the Rode Kruis Vlaanderen, we have recently found that repeated whole blood donation with a 3-month interval in between induced a drop in markers for iron status, which worsened with the number of donations. The repetition effect of the donations, whether whole blood or plasma, can be different from the effects measured after one single donation. It is therefore critical to test and document this repetitive effect to build trustable and valid guidelines concerning repetitive plasma donation.
The primary aim of this study is to conduct a well-designed trial to investigate the effect of an MBI program entitled Mindfulness-based Peak Performance (MBPP) on endurance performance under pressure from an interdisciplinary approach of sport psychology, sports training, and cognitive neuroscience. The secondary aim is to examine the effect of MBPP program on performance-relevant mental attributes in behavioral and neurocognitive assessments. The present study hypothesizes that the MBPP and self-talk groups will improve performance under pressure, but MBPP is expected to show greater improvement than ST. Additionally, we expect the MBPP will improve the relevant mental attributes.
This study will be performed with the aim to evaluate the effects of probiotic supplementation on sport performance and gut damage. Participants will be divided into two groups, placebo and experimental group. With the purpose to assess the effects of probiotics on the gut damage, a strenuous exercise session will be performed, and then blood samples will be taken to observe the variation of the selected intestinal damage marker. 24 hours after this strenuous session, performance tests will be performed. After the 4 weeks of supplementation, the same procedure will be followed to evaluate the effect of probiotics.
Whereas beetroot juice (BJ) supplementation is shown to increase physical performance in endurance activities, its benefits in neuromuscular function and strength performance has been barely studied. In this cross-over randomized placebo-controlled study, we investigated the effects of BJ acute supplementation in improving neuromuscular performance in amateur climbers
The probiotics supplementation seems to be safety way to optimize the intestinal microbiota composition and thus modulate the immune system and reduce oxidative stress. Moreover it may enhance muscle protein synthesis, mitochondrial biogenesis and function, as well as muscle glycogen storage. Probiotics intake via reduce inflammatory markers and reactive oxygen species production may attenuate macromolecules damage and have some beneficial effect on aerobic and anaerobic performance. The combined probiotics and vitamin D supplementation may enhance this effect. The synergistic intestinal microbiota and vitamin D interaction towards muscle protein synthesis and mitochondrial function improvement may be manifested by mTOR and FOXO signaling influence on oxidative stress as well as immunological functions modulation. In the study investigators will assess if multistrain probiotic mixture in conjunction with vitamin D may have beneficial effect on sport performance among trained male mixed-martial arts athletes. The study protocol is designed as a randomized double-blind placebo-controlled clinical trial. Researchers are going to evaluate changes in the gut, including microbiome composition and epithelial permeability; differences in the blood parameters as well as direct influence on sport performance, expressed by anaerobic and aerobic fitness capacity. Researchers will provide an evidences, having both theoretical as well as practical aspect.
Read more »This study have like aim to examine whether insulin secretagogues have a potential ergogenic effect leading to a better exercise performance and post-exercise recovery in healthy individuals after a resistance training session. METHODS: This is a randomized, double-blind, placebo-controlled, clinical trial. The sample will consist of 44 men. Subjects will be randomly allocated (block randomization, www.randomizer.org) to the following groups: placebo (PFG, n=22) and sulphonylurea (GFS, n=22). The study will consist of 3 visits 7 days apart. On visit 1 the participants will ask to sign an informed consent form and will carry out medical evaluation with anthropometric assessment. At that visit they will perform a one-repetition maximum test of the upper limbs by using the horizontal bench press and of the lower limbs by using the 45º leg press. On visit 2, they will perform a second round of similar 1-RM tests to determine workloads for the study session [sulphonylurea (gliclazide) vs. placebo]. The experimental exercise session will be held on visits 3. Gliclazide modified release 60 mg (Diamicron® MR) or placebo (starch, sodium lauryl sulfate and Aerosil) will be orally administered as matched capsules (same color, flavor, smell and size) 8 hours before the beginning of exercise session, double-blind. In the experimental session, first, warm-up on the bench press and leg press, both with workload at 50% of 1-RM will be carried out. After a 2-minute rest, the resistance training session will be started. It will consist of 4 sets of bench press and leg press exercises at 65% of 1-RM with maximum repetitions until concentric failure. The bench press exercises will be followed by the leg press exercises with no interval between them. A 2-minute interval will allowed after each series of exercises. Measurements for heart rate (HR) and Visual Analogue Scale (VAS) for Pain will be taken before, between each series of exercises and 24 and 48 hours after session. Venous blood samples will be obtained before, immediately after, 24 and 48 hours after, for determining serum levels of creatine kinase isoenzyme MM and lactate dehydrogenase. Capillary blood for glucose determination will be collected from the digital pulp using a glucometer before and immediately after. Resistance training volume will be calculated for each type of exercise as well as total training volume for each session as a product of exercise workload and number of series and repetitions.
Read more »A six-week upper body plyometric training program will be used to investigate its impact on fast bowling speed in junior male cricket players in Guyana, using a Stalker Sport 2 radar gun.
Whereas beetroot juice (BJ) supplementation is shown to increase physical performance in endurance activities, its benefits in team sports has been barely studied. In this randomized placebo-controlled study, we investigated the effects of BJ acute supplementation in improving neuromuscular performance and physical match activity in basketball.