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NCT07232628
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 physiological tests, blood samples, and questionnaires. The goal is to identify markers of low energy availability and understand its impact on health and athletic performance. The study is observational and does not involve experimental treatments. Participants continue their regular training and diet while undergoing periodic assessments.
NCT07228507
The Female and Male Athlete Triad (Triad) and Relative Energy Deficiency in Sport (REDs) are multifactorial conditions often under-recognized by healthcare professionals. Improving provider awareness is essential for early detection and multidisciplinary management in sport medicine. Thus, the objective was to assess the effectiveness of a brief online educational video in improving knowledge, attitudes, and perceived confidence toward the Triad and REDs among Spanish healthcare professionals.
NCT05341700
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. Volunteers will complete two 5-day experimental conditions in a randomized order separated by one menstrual cycle (approximately 3 weeks). Experimental conditions will include a dietary intervention of energy intake equal to 30 kcal/kg of fat-free mass/d using controlled diets and an exercise intervention of daily treadmill running with or without an additional 50 impact loading exercises.
NCT07026175
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. LEA describes a mismatch between an individual's dietary energy intake and the energy cost of their commitments for training and competition. The main questions this trial aims to answer are: 1. What effect does short-term, severe LEA have on sleeping metabolic rate? 2. What effect does short-term, severe LEA have on other body systems identified within the Relative Energy Deficiency in Sport (REDs) Health and Performance Conceptual models? Researchers will compare a control trial with both a LEA trial achieved through diet restriction and a LEA trial achieved through increased exercise to see if there are differences in the body's response. Participants will complete three 6-day trials, a minimum of 3-weeks apart, involving: * Prescribed diet (all food provided) * Prescribed running and/or cycling exercise * Two visits to ACU Fitzroy campus for blood tests and exercise testing * 50 hour stay (two nights and two days) in the ACU metabolic chamber
NCT06116097
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 young female endurance athletes aged 15-18 years (football, basketball, volleyball) who engage in training for more than 10 hours per week (n=83).
NCT04790019
Osteoporosis is worldwide health epidemic categorized by poor bone health, primarily diagnosed by low bone mineral density, and costs healthcare systems billions every year. Athletes and exercising people who expend large amounts of energy in physical activity, or restrict diet in order to lose weight, are at risk of low energy availability. This is when an individual fails to match their exercise energy demand with a appropriate dietary intake in order to maintain optimal physiological function; which can lead to low bone mineral density, osteoporosis both early and later in life and an increased risk of injury. Runners are particularly susceptible to stress fracture in response to low energy availability due to repetitive ground impact. Research shows that as little as five days low energy availability significantly reduces bone formation, and significantly increases bone resorption, in physically active women. The ideal solution is to restore energy availability; however, this is often very difficult during periods of intense training and conflicts with the goal of weight loss. Therefore, there is a need to develop an alternative tool to protect bone health. It is critical that any exercise intervention does not further reduce energy availability as previous research shows that this accelerates bone loss rather than prevents it. Low repetition high impact jumping exercise is highly beneficial to bone health and has been shown to improve bone structure when used as a long-term intervention in energy replete states. It takes very little time to complete and uses a very small amount of energy. However, no study to date has examined the effects of such an intervention during low energy availability. The current study will investigate whether low repetition high impact jumping prevents or reduces the reduction in bone formation and the increase in bone resorption experienced during five days of low energy availability and findings will have implications on athletic and recreational training recommendations in order to protect bone health.
NCT05649267
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.
NCT05390346
The investigators hope that through this study will know the prevalence of Relative Energy Deficiency in Sports (RED-S) and its impact on sports injuries, performance and illness among college athletes in Taiwan. And also to find an appropriate diagnosis and intervention model to take care of athletes' health and improve sports performance Taiwan's athletes in the future.
NCT05259969
The aim of proposed cohort observational study is assessing the risk of low energy availability and relative energy deficiency in sport in competitive adult male athletes. The changes in athlete's energy availability, health biomarkers in blood, gut microbiota composition and performance will be determined in 3 key stages across the season: during preparation, competition and transition period in a subset of athletes. The study is investigating following specific aims in the cohort of male competitive athletes: Correlation between energy availability and resting metabolic rate and metabolic functions across the season. Correlation between energy availability and reproductive functions across the season. Correlation between energy availability and hematological biomarkers across the season. Correlation between energy availability and gut microbiota composition across the season. Correlation between energy availability and performance across the season.