Clinical trials: Energy Availability
Nutrition, Absorption
Bioavailability From Chickpea Meals in Ileostomists?
The matrix of a food can significantly affect how well humans can absorb and use nutrients. Plants like fruits, vegetables, nuts, grains, and legumes have cell walls that form a network around their cells.
- Conditions
- Nutrition, Absorption, Polyphenolic Compounds and Metabolism, Polyphenols Absorption Profile
- Trial name
- NCT06921811
- Testing
- Intact chickpeas, Broken chickpeas
- Where
- United Kingdom
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Hypogonadotropic Hypogonadism
Low Energy Availability and Pituitary Function (LEAP Study)
The purpose of this study is to learn more about reproductive hormones and if they change in response to 5-days eating an individualized, standardized diet at two levels: energy balance and low energy intake.
- Trial name
- LEAP (NCT05808647)
- Testing
- 5-day controlled metabolic dietary intake
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Relative Energy Deficiency in Sport
Effect of Nutrition Education on Energy Availability, Body Composition, Eating Attitude and Sports Nutrition Knowledge
This study investigates the effects of a series of nutrition education sessions conducted by a registered dietitian on energy availability, various anthropometric measurements, eating attitudes, and sports nutrition knowledge in…
- Trial name
- NCT06116097
- Testing
- Nutrition education
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Medipol University
Anovulation, Amenorrhea
Effects of Gynecological Age on LH Sensitivity to Energy Availability
The purpose of this experiment is to investigate whether the dependence of luteinizing hormone pulsatility on energy availability declines during adolescence.
- Conditions
- Anovulation, Amenorrhea, Infertility, Starvation
- Trial name
- NCT00260286
- Testing
- Energy availability
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Ohio University
Contraception, Bone Metabolism
Bone Metabolism in Premenopausal Exercising Women
The main goal of this study is to examine how sex hormones and low energy availability affect the concentrations of bone remodelling markers at rest and after a running protocol.
- Conditions
- Contraception, Bone Metabolism, Low Energy Availability, Eumenorrhea
- Trial name
- BeWOMEN (NCT06961773)
- Testing
- Low energy availability, High energy availability
- Where
- Spain
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Universidad Politecnica de Madrid
Athlete, Relative Energy Deficiency in Sport
Preventing Athlete Under-fueling Through Nutrition.
The goal is to improve nutrition screening and support for Division III athletes. The study will use standard, low-risk nutrition screening methods, such as measuring height, weight, grip strength, and body composition, as well…
- Conditions
- Athlete, Relative Energy Deficiency in Sport, Low Energy Availability
- Trial name
- PERFORM (NCT07136038)
- Testing
- Low Energy Availability Screening and Nutrition Support
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Case Western Reserve University
Amenorrhea, Functional Hypothalamic Amenorrhea (FHA)
Effects of Resistance Training on Women With Functional Hypothalamic Amenorrhea
Functional hypothalamic amenorrhea (FHA) is a condition where women lose their menstrual periods, typically due to a combination of stress and insufficient calorie intake to fuel their daily physical activity (low energy…
- Conditions
- Amenorrhea, Functional Hypothalamic Amenorrhea (FHA), Low Energy Availability, Relative Energy Deficiency in Sport
- Trial name
- NCT07612735
- Testing
- Resistance Training Program
- Where
- Spain
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Catholic University of Murcia
Menstrual Irregularity
Timing of Energy Availability on Menstrual Cycle Function
The primary aim of this clinical trial is to evaluate how fasted prolonged exercise may influence circulating reproductive hormones (i.e., estradiol, progesterone, luteinizing hormone) and menstrual cycle length when energy…
- Trial name
- FAST (NCT06471582)
- Testing
- Artificially Sweetened Carbohydrate Beverage, Artificially Sweetened Beverage
- Where
- United States
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Colorado Springs
Healthy
Neurotransmitter Analysis, Stress, and Energy Availability in Athletes
The goal of this observational study is to examine if there is a correlation between energy deficiency, neurotransmitter levels, and exercise test performance among athletes in the Polish national rowing team.
- Trial name
- NCT06683625
- Testing
- 6K Max Effort Erg Test
- Where
- Poland
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Poznan University of Physical Education
Relative Energy Deficiency in Sport
Impact Loading Effect on Bone Biomarkers in Female Runners
This study is a randomized, cross-over intervention study that will evaluate the effect of brief, high-impact loading exercises on biomarkers of bone metabolism in energy-restricted female runners.
- Trial name
- NCT05341700
- Testing
- Impact Load Exercises, No Impact Load Exercises
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Virginia Polytechnic Institute and State University
Female Athlete Triad
Energy Availability in Female Athletes
The purpose of this project is to study the impact of energy availability (EA) on female endurance athletes and the adaptive consequences of insufficient EA with a special reference to the impact on energy metabolism…
- Trial name
- NCT03593382
- Where
- 3 sites in Denmark, Sweden
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Low Energy Availability, Cardiovascular Diseases
Low Energy Availability and Cardiovascular Disease
Low energy availability (LEA) signifies a condition where the body lacks sufficient energy to support essential physiological functions crucial for maintaining optimal health (1).
- Trial name
- NCT06615388
- Where
- United Kingdom
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Liverpool Hope University
Vascular Stiffness, Hypertension (HTN)
Low Energy Availability and Hypertension in Division I HBCU Athletes
Low energy availability (LEA) occurs when the body does not get enough calories to support both daily life and exercise. This can happen when athletes train hard but do not eat enough to match their energy needs.
- Conditions
- Vascular Stiffness, Hypertension (HTN), Nutritional Deficiency Related Cardiovascular Risk in Athletes
- Trial name
- CORE-DI (NCT07583940)
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- North Carolina Agriculture & Technical State University
Energy Supply; Deficiency, Carbohydrate Availability
Endocrinological and Physiological Responses to Short-term Reduced Carbohydrate Availability in Males
Using a randomised crossover design, nine weight-stable men, aged 18 - 40 years old, will be recruited via convenience sampling from the staff and student body of LJMU and local area.
- Trial name
- NCT05551455
- Testing
- Nutritional/dietary intake manipulation ('Normal'), Nutritional/dietary intake manipulation ('Low')
- Where
- United Kingdom
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Liverpool John Moores University
Nutrition Poor, Obesity
Increasing Availability of Lower Energy Meals vs. Menu Energy Labelling on Food Choice
Two randomized control trials examining human food choice (i.e. selection of high energy 'unhealthy' foods vs. selection of healthier foods).
- Conditions
- Nutrition Poor, Obesity, Diet, Healthy, Food Selection
- Trial name
- NCT04336540
- Testing
- Menu configuration (presence of energy labelling), Menu configuration (more lower energy options added)
- Where
- United Kingdom
- Volunteers
- 2,091 people, healthy volunteers welcome
- Sponsor
- University of Liverpool
Diet; Deficiency, Exercise Intervention
Influence of Low Energy Availability on Skeletal Muscle and Cardiovascular Health
The project is designed as a randomized controlled intervention trial in which 60 young trained (n = 30) (Population A) and recreationally active (n = 30) women (Population B) with regular menstruation are divided into four…
- Trial name
- LEA (NCT04821076)
- Testing
- Diet intervention - caloric restriction, Exercise intervention, Diet intervention - Energy balance
- Where
- Denmark
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Low Energy Availability, Physical Performance
Characteristics of Performance in Collegiate Cheerleaders and Dancers
This study aims to investigate performance differences between collegiate cheerleaders and dancers classified as normal weight obese and those classified as normal weight lean.
- Conditions
- Low Energy Availability, Physical Performance, Nutrition
- Trial name
- NCT07378007
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Florida State University
Iron Deficiency, Iron Deficiency Anemia (IDA)
Collegiate Athlete Study
The purpose of this study is to determine what percentage of Black collegiate athletes have low energy availability. It will also determine the percentage of Black collegiate athletes who have iron deficiency, suboptimal or low…
- Conditions
- Iron Deficiency, Iron Deficiency Anemia (IDA), Vitamin D Deficiency, Vitamin D Insufficiency
- Trial name
- NCT07631312
- Testing
- Iron and Vitamin D Deficiencies Correction
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Morehouse School of Medicine
Diet, Healthy, Food Selection
Increased Proportion of Lower Energy Density Items vs. Nutritional Labelling at an Online Supermarket
This study will be a 2x2 randomised controlled trial with information-based intervention (no labelling / labelling) and structural intervention (default proportion / increased proportion of lower energy density food items) as…
- Trial name
- NCT04340791
- Testing
- Increased proportion of lower energy density items, Labelling
- Where
- United Kingdom
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- University of Liverpool
Amenorrhea
Effect of Intense Training on Ovarian Function and Bone Turnover
The investigators propose a prospective, longitudinal, department funded study protocol to evaluate whether changes in energy availability, during a period of highly intensified exercise training, will increase bone turnover…
- Trial name
- NCT02224976
- Testing
- Intensified Training
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- USDA, Western Human Nutrition Research Center