Clinical trials: Trained Athletes
Exercise Performance
The Effect of a Citrus Extract on Exercise Performance in Moderately Trained Athletes
In this study, the effect of citrus extract on exercise performance will be investigated. The study consists of three groups: one group will receive a high dose citrus extract, one group will receive a low dose citrus extract and…
- Trial name
- NCT03044444
- Testing
- citrus extract
- Where
- Netherlands
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- BioActor
Power
Experimental Study Measuring Power and Execution Speed in 44 Athletes in Push-up Exercise.
Investigation of power and speed in relation to the increasing instability in a group of untrained athletes and a group of expert athletes.
- Trial name
- NCT04721496
- Testing
- Power and Speed
- Where
- Spain
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Universidad Politecnica de Madrid
Athletic Performance
Effect of Beetroot Nitrates on Different Physical Skills in Colombian Rugby Athletes
Beetroot is a source of nitrates, which have demonstrated various positive effects in sports, with little evidence in intermittent sports such as ball sports (including rugby).
- Trial name
- NCT07106489
- Testing
- 40 meters sprint, Fitness test by bronco test, Maximal strength
- Where
- Colombia
- Volunteers
- 10 people
- Sponsor
- Universidad Nacional de Colombia
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
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
Ketogenic Diet, Control Condition
Effects of Short-term Adaptation to Ketogenic Diet on Endurance Trained Athletes
Skeletal muscle glycogen is a major endogenous carbohydrate store and an important substrate for ATP resynthesis during exercise.
- Trial name
- NCT07838818
- Testing
- Ketogenic diet, Control Diet
- Where
- Italy
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Padova
Exercise Performance of Fit Athletes, Exercise Performance
Effect of the Combination of Nitrate and Caffeine on Critical Power In Trained Male Cyclists
This study is investigating the independent and combined effects of acute dietary nitrate and caffeine supplementation on performance during a 3-minute all-out cycling test in trained male cyclists.
- Conditions
- Exercise Performance of Fit Athletes, Exercise Performance, Cycling Performance
- Trial name
- BEET (NCT07501806)
- Testing
- Dietary Nitrate, Caffeine
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Lindenwood University
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
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
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
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
Exercise-Induced Circulating Progenitor Cell Mobilization
Exercise Intensity and Circulating CD34+ Progenitor Cell Mobilization in Trained Adults
This randomized crossover study investigated whether exercise intensity influences the mobilization of circulating CD34+ progenitor cells when total external work is matched.
- Trial name
- NCT07841561
- Testing
- Higher-Intensity Work-Matched Cycling Exercise, Lower-Intensity Work-Matched Cycling Exercise
- Where
- Iraq
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Samarra University
Exercise-induced Arterial Hypoxemia
Cytokine and Stress Hormone Responses to Exercise-induced Hypoxemia Among Endurance-trained
It is well documented that exercise-induced arterial hypoxemia (EIAH) is highly prevalent among endurance-trained athletes performing heavy intensity exercise, regardless of sex and age.
- Trial name
- NCT04305873
- Where
- Israel
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Gepner Yftach
Cardiometabolic Health, Sedentary Behavior
The Association Between Sedentary Behaviour and Cardiometabolic Health in Trained Athletes
Physical inactivity is one of the major contributing factors for the development of chronic diseases and highly correlated with increased all-cause mortality.
- Conditions
- Cardiometabolic Health, Sedentary Behavior, Physical Activity, Athletes
- Trial name
- HPAC (NCT04711928)
- Testing
- Physical activity and sedentary behaviour
- Where
- Belgium
- Volunteers
- 60 people
- Sponsor
- Hasselt University
Supplementation, Sports
Acute Sodium Bicarbonate Supplementation in Female Basketball Players
This randomized, double-blind, placebo-controlled crossover study aims to evaluate the effect of acute sodium bicarbonate supplementation, compared with placebo, on physical capacity and blood biochemical marker concentrations in…
- Trial name
- NCT07730606
- Testing
- Sodium Bicarbonate (NaHCO3)
- Where
- Poland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Krzysztof Durkalec-Michalski
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
Cardiorespiratory Responses, Well-trained Athletes
Cardiorespiratory Responses to Treadmill Running at Different Slopes
The purpose of this study is: i) to determine if maximal oxygen uptake in downhill running is significantly different versus flat or uphill running, and ii) to compare cardiorespiratory and muscle fatigue responses to uphill vs…
- Trial name
- NCT03946215
- Testing
- Each participant will perform:
- Where
- France
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University Hospital, Strasbourg, France
Athletic Performance, Postural Stability
Effects of Caffeine and Nicotine Gum on Balance Performance in Athletes
This randomized, single-blind, placebo-controlled, four-condition crossover study evaluates the acute effects of caffeine gum (~3 mg/kg) and nicotine gum (4 mg) on balance performance in healthy, trained adults.
- Conditions
- Athletic Performance, Postural Stability, Healhty
- Trial name
- NCT07254832
- Testing
- Caffeine Gum 3mg/kg, Nicotine Gum (4 mg)
- Where
- Turkey (Türkiye)
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Gülbin Rudarlı
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
Increased Metabolic Requirement, Healthy
Rate-limiting Amino Acids in Endurance-trained Athlete
Protein requirements in individuals who participate in endurance-based exercise training have been suggested to be greater than the current recommended dietary allowance (RDA).
- Trial name
- EA (NCT02628249)
- Testing
- Base protein, Sufficient protein, Branched chain amino acids
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of Toronto