Clinical trials: Trained Athletes
Protein/Amino Acid Metabolism, Indicator Amino Acid Oxidation Method
Influence of Habitual Protein Intake on AA Tracer Oxidation
Protein is an essential nutrient that one's diet to maintain important bodily functions and to recover from exercise. Currently, the Indicator Amino Acid Oxidation method (IAAO) has been used to determine protein requirements in…
- Trial name
- HPI (NCT03845569)
- Testing
- Dietary protein intake reduction, Three day Controlled Diet
- Where
- Canada
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of Toronto
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
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
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
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
Cooling Fabrics, Exercise Performance
Cooling Fabrics and Exercise Performance in Endurance Athletes
In humans, the primary means of cooling the body during exercise is through the evaporation of sweat from the skin surface. Clothing represents a layer of insulation that hinders the evaporation of sweat from the surface of the…
- Conditions
- Cooling Fabrics, Exercise Performance, Thermoregulation
- Trial name
- NCT02016521
- Testing
- Cooling Fabric
- Where
- Canada
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- McGill University
Sports Performance, Cycling
Short or Long High Intensity Training
To compare the effects of short and long high intensity interval training (HIT) conducted with the same total accumulated duration on physiological- and performance parameters during a 4-week training period.
- Conditions
- Sports Performance, Cycling, Well-trained Athletes
- Trial name
- NCT04075929
- Testing
- Training effects on aerobic output
- Where
- Norway
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Agder
Obesity
Can Reverse Dieting Prevent Weight Regain After Weight Loss
Introduction: It is known that weight loss results in decreased Resting Energy Expenditure (REE), due to a decrease in lean body mass (LBM), but also due to metabolic adaptation, resulting in a higher energy efficiency…
- Trial name
- NCT03434431
- Testing
- Reverse dieting
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- George Mason University
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
Healthy, Athlete
Effects of Sodium Bicarbonate on Endurance Performance
This study is investigating whether taking sodium bicarbonate, a common supplement used by endurance athletes, can improve cycling performance during prolonged exercise and in a time trial.
- Conditions
- Healthy, Athlete, Well-trained Athletes, Performance
- Trial name
- SBEP (NCT07171047)
- Where
- Austria
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- University of Salzburg
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
Healthy, Trained Athletes
Pre-exercise Ingestion of a Low Glycaemic Index Rice-based Mixed Meal Increases Fat Oxidation and Endurance Running in a Hot-humid Environment
The objective of this research is to determine the influence of low and high glycemic index Malaysian pre-exercise mixed meals on endurance exercise performance in a hot-humid environment.
- Trial name
- NCT06544252
- Testing
- Low glycaemic index rice-based mixed meal (GI value = 47), High glycaemic index rice-based mixed meal (GI value = 80)
- Where
- Malaysia
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Universiti Sains Malaysia
Trained Athletes, Untrained
Trained vs. Untrained: Lower Extremity Pressure Changes
Research shows that how well oxygen moves from the lungs into the blood (called lung diffusing capacity) is linked to a person's aerobic fitness and endurance training.
- Trial name
- TULiP (NCT07897357)
- Testing
- Lower body positive and negative pressure
- Where
- Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Alberta
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
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
Sports Nutrition, Biochemical Markers
Effect of a Short-term Multi-strain Probiotic Supplementation in Endurance Athletes
The aim of this project is to evaluate and identify the effect of a short-term 2-week multi-strain probiotic (MPRO) supplementation on the exercise-associated gastrointestinal (GI) symptoms and perturbations in high level female…
- Conditions
- Sports Nutrition, Biochemical Markers, Exercise Performance, Aerobic Capacity
- Trial name
- NCT07252778
- Testing
- MPRO supplementation
- Where
- Poland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Krzysztof Durkalec-Michalski
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
Nutrition Status, Nutritional Requirements
Effects of Vitamin D on Skeletal Muscle Strength in Resistance Trained Adult Females
The majority of vitamin D research has been done in non-athletic populations, particularly older populations, to analyze muscle weakness, pain, balance, and fractures.
- Conditions
- Nutrition Status, Nutritional Requirements, Sports Nutritional Sciences
- Trial name
- NCT05489666
- Testing
- Nature Made Vitamin D3 5,000 IU, 125mcg
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Auburn University
Mitochondrial Biogenesis, Inflammation
EFFECTS OF PYRROLOQUINOLINE QUINONE (PQQ) SUPPLEMENTATION ON NON-ENDURANCE TRAINED ATHLETES
The aim of this study was to investigate the effects of six weeks of PQQ supplementation in non-endurance-trained individuals on: 1. physiological and metabolic response during a FATmax-VO₂peak exercise test 2.
- Trial name
- NCT07148726
- Testing
- Pyrrole Quinoline Quinone (PQQ)
- Where
- Italy
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Padova