Clinical trials: Trained Athletes
Exercise-induced Muscle Damage
Exercise-induced Muscle Damage is Reduced in Resistance Trained Athletes by Branch Chain Amino Acids
It is well documented that exercise-induced muscle damage (EIMD) decreases muscle function and causes severe soreness and discomfort.
- Trial name
- NCT01529281
- Testing
- Branch Chain Amino Acid (BCAA)
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Healthy Experienced Weight Training Males
The Effects of HMB, ATP, and HMB Plus ATP on Muscle Mass, Strength, and Power in Resistance Trained Athletes
The purpose of this study is to determine the effects of 12 weeks of HMB free acid gel, ATP, and HMB free acid gel plus ATP supplementation in trained individuals during a periodized training program on skeletal muscle…
- Trial name
- NCT01508338
- Testing
- HMB, Peak ATP and HMB, ATP
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Metabolic Technologies Inc.
Athletic Injuries
Functional and Performance Effects of a 4-week Weightlifting Program in Highly Trained Adolescent Basketball Athletes
Weightlifting is an increasingly used intervention in the sport field to improve both function and performance outcomes. However, the effects in a pediatric and adolescent population are not well described, and require further…
- Trial name
- NCT05824780
- Testing
- Exercise training
- Where
- Spain
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- University of Valencia
Protein Requirement of Athletes
Measuring Protein Requirement Using Amino Acid Oxidation in Strength and Endurance Athletes
Our objective is to determine the dietary requirement of protein for strength and endurance exercise trained (more than 4 months training experience) individuals between 18 - 30 years of age using the indicator amino acid…
- Trial name
- NCT02621294
- Testing
- Measuring protein requirement
- Where
- Canada
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University of Western Ontario, Canada
Hypoglycemia
Dose Response Oxidation of a Sweet-corn Derived Sugar (PhytoSpherix) During Exercise in Endurance Trained Athletes
PhytoSpherix (Phx) is an all-natural, edible polysaccharide extracted from sweet corn. This carbohydrate is the major muscle fuel for intense exercise and its stores are quite small such that one can run out of it during a single…
- Trial name
- NCT02909881
- Testing
- Use of PhytoSpherix at 0 g/min, Use of PhytoSpherix at 1 g/min, Use of PhytoSpherix at 1.5 g/min
- Where
- Canada
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Western Ontario, Canada
Performance
Chronic Grape Extract in Crosstraining Athletes: A Randomized Crossover Trial
The aim of this study is to investigate the effect of cronic GSE intake in crosstraining may have a favorable impact on biochemical markers, recovery, and performance.
- Trial name
- CROSSUVA (NCT07106281)
- Testing
- Grape Seed Extract
- Where
- Spain
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Universidad de Granada
Healthy, Athlete
The 10/7 HIIT Shock Cycle Study: Effectiveness of 10 HIIT Sessions in 7 Days
A randomized, controlled trial to evaluate the effects of two versions of 10 high intensity interval trainings (HIIT) within a 7-day shock microcycle on endurance performance, well-being, health, stress and recovery in trained…
- Conditions
- Healthy, Athlete, Performance
- Trial name
- THESIS (NCT05067426)
- Testing
- Exercise
- Where
- Austria
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- University of Salzburg
Nutrition, Ketogenic Dieting
Effect of Ketogenic and Carbohydrate Diet in Crossfit
The purpose of the presented study was to assess the influence of Ketogenic (KD) and a carbohydrate diet with a low glycemic index (CHO-LGI) of a 4-week diet on physical and specific performance capacity, exercise metabolism, as…
- Conditions
- Nutrition, Ketogenic Dieting, Low Glycemic Index Diet, Sport
- Trial name
- NCT03665948
- Testing
- Dietary Intervention - Ketogenic Diet (KD), Dietary Intervention - Low-Glycemic Index Diet (CHO-LGI)
- Where
- Poland
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Poznan University of Physical Education
Repeated Sprint Performance in Trained Athletes, Exercise Performance
Beetroot Beverage and Repeated Sprint Power Output During RAST
This randomized, double-blind, placebo-controlled crossover trial aims to evaluate the acute effects of a nitrate-rich beetroot-based beverage on repeated sprint performance in trained athletes.
- Conditions
- Repeated Sprint Performance in Trained Athletes, Exercise Performance, Nitrate Supplementation
- Trial name
- NCT07473193
- Testing
- Beetroot-based antioxidant beverage
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Universidad Autonoma de Chihuahua
Athletic Performance, Dietary Supplement
The Effects of Acute Nitrate and Caffeine Co-ingestion on Discipline-Specific Exercise Performance.
The purpose of this study is to investigate the acute, separate, and combined ergogenic effects of dietary nitrate (beetroot juice, BJ) and caffeine (CAF) supplementation on discipline-specific athletic performance.
- Conditions
- Athletic Performance, Dietary Supplement, Iron Status
- Trial name
- NCT07748416
- Testing
- Caffeine, Dietary Nitrate (Beetroot Juice)
- Where
- Poland
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- Poznan University of Physical Education
Sports Nutrition, Biochemical Markers
The Effect of Colostrum Bovinum Supplementation in Endurance Athletes
The purpose of this study was to verify the effect of chronic 12-week high-dose Colostrum Bovinum (COL) and placebo (PLA) supplementation on immunological, hematological and biochemical markers, as well as physical capacity and…
- Conditions
- Sports Nutrition, Biochemical Markers, Exercise Performance, Aerobic Capacity
- Trial name
- NCT06390670
- Testing
- Colostrum Bovinum supplementation
- Where
- Poland
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Poznan University of Physical Education
Acute Nitrate Ingestion on Athletic Performance
Acute Nitrate Supplementation in Cyclists
Six days of dietary nitrate (NO3-) supplementation in the form of beetroot juice (~0.5 L•d-1; 5.1-11.2 mmol NO3- •d-1) has been purported to reduce pulmonary oxygen uptake (VO2) during submaximal exercise and increase tolerance…
- Trial name
- NCT01384968
- Testing
- beetroot juice
- Where
- Netherlands
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Supplementation, Sports
Effects of β-alanine and Sodium Bicarbonate Supplementation on Physical Capacity and Biochemical Markers Concentrations
This randomized, double-blind, placebo-controlled, parallel-group study aims to evaluate the potential synergistic effect of beta-alanine (BA) and sodium bicarbonate (SB) supplementation, compared to their separate administration…
- Conditions
- Supplementation, Sports, Female Athletes
- Trial name
- NCT07092930
- Testing
- BA and SB supplementation, BA and PL2 supplementation, PL1 and SB supplementation
- Where
- Poland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Poznan University of Physical Education
Gut Microbiome, Sport Performance
The Effect of Probiotics and Vitamin D Supplementation on Sport Performance in MMA Athletes.
The probiotics supplementation seems to be safety way to optimize the intestinal microbiota composition and thus modulate the immune system and reduce oxidative stress.
- Trial name
- NCT04759729
- Testing
- Probiotic and vitamin D
- Where
- Poland
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Medical University of Gdansk
Iron Supplementation and Gastrointestinal Health, Iron Deficiency
Modulation of hepcidIN With Co-supplementation of Iron and FORMulated Curcumin in Recreational Athletes
Iron deficiency and iron deficiency anaemia are common among endurance athletes partly due to a repeated post-exercise elevation of hepcidin, a hormone limiting iron entry through the intestine.
- Trial name
- IN-FORM (NCT07078630)
- Testing
- HydroCurc®, Ferrous sulphate 200mg oral tablet providing 65 mg of elemental iron
- Where
- United Kingdom
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Westminster
Sport Performance
Pre-workout Supplementation and Basketball
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…
- Trial name
- NCT06059911
- Testing
- Multi-ingredient dietary supplement (caffeine, creatine monohydrate, β-alanine, citrulline malate, BCAA)
- Where
- Greece
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Athanasios Z. Jamurtas
Nitrates, Placebo
Beetroot Juice Effects on Contractile or Neuromuscular Properties in Male Trained Sprinters
Beetroot juice is a rich source of nitrate (NO3-), which serves as a precursor to nitric oxide (NO) via the NO3- to nitrite (NO2-) to NO conversion pathway.
- Trial name
- BEET_SPRINT (NCT06675682)
- Testing
- Beetroot Juice (Beet-It Stamina Shot) and Exercise Training
- Where
- Spain
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Universidad Pontificia Comillas
Hypoxia, Erythropoiesis
Effects of Intermittent Hypoxia Training With Iron Supplementation on Red Blood Cells and Iron Levels in Trained Athletes
This study investigates how training under conditions of reduced oxygen (intermittent hypoxia) affects the body's ability to produce red blood cells and manage iron levels, compared to training under normal oxygen conditions.
- Conditions
- Hypoxia, Erythropoiesis, Iron Metabolism Disorders
- Trial name
- IHIT-IRON (NCT07720960)
- Testing
- Control group (CG), Hypoxia group (HG): trained at simulated altitudes between 4,450 and 5,850 m
- Where
- Spain
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Néstor Vicente-Salar
Cognitive Performance, Physical Performance Enhancement
Effects of Caffeine and L-Theanine on Physical and Cognitive Performance in Trained Athletes
The aim of this clinical trial is to examine how caffeine and L-theanine, taken alone or together, affect both physical and cognitive performance in healthy, trained athletes.
- Conditions
- Cognitive Performance, Physical Performance Enhancement, Caffeine and L-theanine Interaction
- Trial name
- NCT07268573
- Testing
- Caffeine, L-theanine, Combined Caffeine and L-Theanine
- Where
- Turkey (Türkiye)
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Ulaş Can YILDIRIM
Muscle Contractile Properties, Resistance Exercise
Foot Progression Angle and Leg Press: Vastus Medialis Contractile Responses
This study examined the interaction between rotational foot positioning during leg press and individuals' habitual foot progression angle (FPA) phenotype on the acute contractile response of the vastus medialis muscle
- Conditions
- Muscle Contractile Properties, Resistance Exercise, Foot Progression Angle
- Trial name
- NCT07546851
- Testing
- Congruent Foot Position Leg Press, Incongruent Foot Position Leg Press
- Where
- Turkey (Türkiye)
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Giresun University