Clinical trials: Energy Availability
Energy Supply; Deficiency, Energy Balance
Effects of Acute Energy Deficit and Aerobic Exercise on Muscle Quality
10 healthy, male, participants will complete a a 5-day baseline assessment (days -5 to -1) and two consecutive 5-day periods of controlled exercise to increase oxidative capacity (3 days of aerobic exercise per period, 15 kcal/kg…
- Conditions
- Energy Supply; Deficiency, Energy Balance, Energy Availability
- Trial name
- NCT05203133
- Testing
- Energy Balance, Energy Deficit, Baseline Assessment
- Where
- United Kingdom
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Liverpool John Moores University
Low Energy Availability, Relative Energy Deficiency in Sport
Energy Availability and Its Impact in Elite Triathletes
This study investigates how energy availability affects performance, injury risk, and training outcomes in elite triathletes. Over two competitive seasons (2026-2027), 40 elite and sub-elite triathletes will be monitored through…
- Trial name
- TriatLEA (NCT07232628)
- Where
- Denmark
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Bispebjerg Hospital
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
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
Relative Energy Deficiency in Sport
Using Energy Availability as a Strategy to Explore the Effects of Relative Energy Deficiency in Sport on Athletes
The goal of this type of study:clinical trial is to test, compare etc. In describe participant population health conditions. Participants will diet record,maintain training and life.
- Trial name
- NCT05649267
- Where
- Taiwan
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Chen Ming You
Energy Metabolism, Heart Rate
Effects of a Thermogenic Dietary Supplement on Metabolic, Hemodynamic, and Mood Responses
This a randomized, double blind, placebo controlled, crossover design study which measures the effect of an available thermogenic dietary supplement on resting energy expenditure (REE), blood pressure and heart rate, and mood…
- Conditions
- Energy Metabolism, Heart Rate, Blood Pressure, Mood
- Trial name
- NCT03678116
- Testing
- Caffeine (plus Teacrine and Cayenne), Caffeine (plus Teacrine)
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Mary Hardin-Baylor
Low Energy Availability, Physical Performance
Body Composition and Lifestyle Factors in ROTC
This study aims to investigates the relationships between body composition, sleep, diet, and physical fitness in ROTC cadets. Further, it aims to evaluate the accuracy of body composition screening methods and identify lifestyle…
- Conditions
- Low Energy Availability, Physical Performance, Nutrition
- Trial name
- NCT07347522
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Florida State University
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
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
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
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
Energy Supply; Deficiency
Energy Availability in Male and Female Elite Wheelchair Athletes Over Seven Consecutive Training Days
Low energy availability (LEA) is a major problem in sports as athletes ingest often a lower amount of energy compared to their actual needs.
- Trial name
- NCT04254900
- Testing
- evaluating energy availability
- Where
- Switzerland
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Swiss Paraplegic Research, Nottwil
Relative Energy Deficiency in Sport
Unravelling Energy Issues Underpinning Low Energy Availability in High Performance Athletes
The goal of this clinical trial is to understand how the body responds to short-term, severe low energy availability (LEA) in healthy, weight-bearing endurance athletes aged 18-45 years old.
- Trial name
- NCT07026175
- Testing
- Diet-induced low energy availability, Exercise-induced low energy availability
- Where
- Australia
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Australian Catholic University
Diet, Healthy, Food Selection
Increasing Availability of Lower Energy Meals on Food Choice and Intake
This study will examine the effectiveness of a structural intervention (baseline proportion of lower energy ready meals vs increased proportion of lower energy ready meals) on calories (kcal) ordered and consumed.
- Conditions
- Diet, Healthy, Food Selection, Obesity, Eating Behavior
- Trial name
- NCT04893213
- Testing
- Manipulation of availability of lower energy meal options
- Where
- United Kingdom
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Liverpool
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
Focus: to Compare a Commercially Available Energy Drink, B Vitamins, Caffeine Alone, and Placebo for Effectiveness on Perceived Energy Level and Wakefulness
Efficacy of Energy Shots and Caffeine for Energy and Wakefulness Levels
The line of "5-hour Energy"® products are available over-the-counter as energy supplements. The appeal of these products involves ease of use, low caloric value, and the absence of sugar to prevent a "crash" later in the day.
- Trial name
- NCT01755299
- Testing
- Regular "5-hour Energy", Decaf "5-hour Energy", Compounded concentrated caffeine liquid
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- ProMedica Health System
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
Obesity
The Effects of Mastication on Energy Release From Walnuts
With an emphasis on oral processing, this study seeks to characterize the mechanisms that account for the high satiation properties of walnuts and low energy yield during digestion.
- Trial name
- NCT02927028
- Testing
- Chewing
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Purdue 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
Eating Behavior
Assessing the Influence of Sport Nutrition Education to Lower the Risk of Low Energy Availability in Elite Athletes
Athletes in low energy availability (LEA) are at increased risk of developing the Relative Energy Deficiency in Sports (RED-S) syndrome (Mountjoy et al., 2018).
- Trial name
- NCT05709678
- Testing
- Standard Education, Enhanced Education
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- McGill University