Mental Health IssueNCT06487260
Mental Health and Symptoms of Energy Deficiency (REDs) in Young Biathletes
An observational study of Mental Health Issue and Physical Health, run by Ostfold University College at 2 sites in Norway.
Trial summary
Participation in weight-sensitive sports has been identified as a significant risk factor for low energy availability (LEA), relative energy deficiency in sport (REDs), and eating disorders. However, there is limited knowledge regarding the symptoms of LEA, REDs, and mental health issues in young biathletes. Read more about this study
- Who is it for?
- Ages 16 to 20 yearsHealthy volunteers can take part
- Conditions the study is for
- Mental Health Issue, Physical Health
- How many people
- 28 participants
- Where
- 2 sitesNorway
- Study dates
- 21 Aug 2024to 10 Dec 2024
- How long will I take part?
- 1 Day
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 16 to 20 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Study population: Young, competetive biathletes in age-range 16-20 years of age, living in Norway.
Who may be able to join
- competetive biathlete
- live in Norway, speaks or understand written and oral Norwegian
Who cannot join
- injured and prevented from regular training (3 months leading up to recruitement)
Trial locations and contacts
2 sites in 1 country.
Norway2 sites
Inland Norway University of Applied Sciences
Lillehammer, Inland, 2418
Norwegian School of Sport Sciences
Oslo, 0806
About this study
Official title: Mental Health and Symptoms of Energy Deficiency (REDs) in Young Biathletes.
Participation in weight-sensitive sports has been identified as a significant risk factor for low energy availability (LEA), relative energy deficiency in sport (REDs), and eating disorders. However, there is limited knowledge regarding the symptoms of LEA, REDs, and mental health issues in young biathletes. This study investigates the prevalence of these symptoms in young, talented biathletes from one of the leading nations in the sport. By including athletes of both sexes aged 16, 17, and 18, this study aim to determine whether symptom severity is associated with age, sex, or performance level. Furthermore, this study will explore the experiences of biathletes aged 18 and older with the new best practice guidelines for body composition assessment, designed by an IOC working group on the REDs consensus update of 2023 to safeguard athletes from negative experiences. The insights gained from this study may enhance the understanding of the frequency of health symptoms, the age or performance level at which symptoms typically increase, and the specific needs of athletes to ensure their safety and well-being in the sport.
Read the detailed description
Being physically active is associated with a range of positive mental, physical, and psychosocial health benefits. Although athletes might be expected to enjoy these positive health effects, studies also show that high-level competitive athletes have a similar prevalence of certain mental disorders as the general population. Beyond reflecting the normal occurrence of mental health challenges in the population, performance expectations related to participation in competitive sports may contribute to many athletes experiencing periods or persistent mental health issues. Despite the increased openness in recent years about top athletes experiencing mental stress and disorders, there is little knowledge about the overall prevalence, especially among younger athletes at sub-elite performance levels. In 2023, Norwegian media highlighted a serious concern about the mental health of young biathletes, underscored by an alarming and unexpectedly high incidence of suicide among young biathlon talents.
Ski sports are among many weight-sensitive sports challenged by a high prevalence of eating disorders, particularly among female athletes. Eating disorders are linked to a high risk of low energy availability (LEA) and the syndrome relative energy deficiency (REDs) in athletes. REDs involve a variety of health challenges that follow LEA, and mental health issues can be both contributing factors to and effects of LEA. Knowledge about the prevalence of LEA, eating disorders, and REDs specifically among biathletes is very limited. A recent study found that a group of young female skiers (17 years old), including biathletes, on average consumed too little energy and carbohydrates relative to their athletic needs, and that 17% had LEA. A previous study recruited female athletes aged 25 years with self-expressed concern for REDs. This study found an overall prevalence of eating disorders corresponding to 21.3%, and that 65% in the sub-group of biathletes had LEA. Athletes with LEA symptoms had both lower weight and BMI, and the highest prevalence of eating disorders. At the same time, there is a study with young male skiers (including biathletes) aged 16 years, which finds a high prevalence of low bone mass and loss of bone mass through puberty. Low bone mass is one of the cardinal signs of LEA and REDs.
There is a need to map the prevalence of mental health issues and symptoms of REDs in young biathletes. Such knowledge can be used to understand the extent, specific vulnerable periods, and potentially explain why some are more affected than others. This knowledge can be used to more easily identify those who may need help and to initiate early interventions before the severity and complexity increase. In this exploratory national cross-sectional study, the aim is to map mental health and symptoms of REDs in young biathlon talents aged 16-19 years. In connection with mapping the physical symptoms of REDs, this study also aim to evaluate athlete experiences when closely following the new proposed guidelines and recommendations for measuring body composition in athletes. The guidelines (three members of this project group contributed in producing those guidelines) were given to protect athletes from negative experiences with body evaluation, so fewer are at risk of developing a negative body image and disordered eating behaviors or eating disorders.
This study works from the following hypotheses: 1) The prevalence of body dissatisfaction, depression, eating disorders, and symptoms of REDs (hereafter: outcome measures) is low in 16-year-old biathletes; 2) the prevalence of outcome measures increases with age and is therefore higher in 18-year-old biathletes; 3) the prevalence of eating disorders and symptoms of REDs is higher in girls than boys in all age groups; 4) young biathletes aged 18 years experience a professional and safe implementation of body composition evaluation when recommended guidelines are followed.
- Conditions
- Mental Health Issue, Physical Health
- Keywords
- biathlon, biathletes, nordic skiing, REDs, LEA, Mental health, IBU, DXA, Eating Disorders, Blood work
- Medical subject headings
- Psychological Well-Being, Feeding and Eating Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Biathletes 16 years of age | Norwegian, competetive biathletes of both sexes, aged 16 years of age | |
| Biathletes 17 years of age | Norwegian, competetive biathletes of both sexes, aged 17 years of age | |
| Biathlete 18 years of age | Norwegian, competetive biathletes of both sexes, aged 18 years of age |
What is being measured
The primary outcome is the main question the study is designed to answer.
Diagnosis of Eating Disorder
Number of athletes with a diagnosable eating disorder, and type of eating disorder. Evaulation will be by a clinical interview following the validated Eating Disorder Examination Inverview.
Measured: September 2024
Symptom of Eating Disorders
Number of athletes with symptoms of eating disorders, and type of eating disorder. Evaulation will be by a selfreport responding to the Eating Disorder Examination Questionnaire.
Measured: September 2024
Symptoms of Depression
Severity in symptoms of depression and number of athletes with symptoms of depression. Evaulation will be by selfreport, responding to the Beck Depression Inventory v-2
Measured: September 2024
Symptoms of Low Energy Availability (LEA)
Severity in symptoms of LEA, evaluated by selfreport, responding to the Low Energy Availability for Females Questionnaire, and Low Energy Availiability for males Questionnaire.
Measured: September 2024
Body composition
Body composition (fat mass and lean body mass) measured by DXA, as part of the evaluation of fitness in biathletes 18 years or older
Measured: September 2024
Bone mineral Density
Bone mineral density in biathletes 18 years or older, as a fitness evaluation and symptom of LEA
Measured: September 2024
Secondary outcomes (5)
Blood work, energy metabolism
Hormone T3 measured by blood sample to evaluate energy metabolism as a symptom of LEA
Measured: September 2024
Blood pressure, orthostatic
The orthostatic blood pressure, as a symptom of LEA
Measured: September 2024
Blood pressure, resting
The resting blood pressure, as a symptom of LEA
Measured: September 2024
Resting heart rate
Resting heart rate, as a measure of cardiovascular fitness and symptom of LEA
Measured: September 2024
Indirect calorimetry
Indirect calorimetry as a measure of energy metabolism, serving as a symptom of energy availability
Measured: September 2024
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Jul 2024
- Study start21 Aug 2024
- Primary completion10 Dec 2024
- Study completion10 Dec 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Mental Health IssueStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Enrolment
- 28 participants (actual)
- Target duration
- 1 Day
Sponsor and investigators
- Lead sponsor
- Ostfold University College
- Sponsor type
- University, hospital or other
- Collaborators
- Norwegian School of Sport Sciences, Inland Norway University of Applied Sciences, International Biathlon Union
- Responsible party
- Principal investigator, Therese Fostervold Mathisen, Ostfold University College
- Investigators
- Therese F Mathisen, PhD, Principal investigator, Associate Professor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06487260
- Sponsor's protocol ID
- 733966
- Status last verified
- Sep 2025
- First submitted
- 27 Jun 2024
- Last updated
- 12 Sep 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Undisclosed data can be shared upon reasonable request.
Study at a glance
From the registry record, last updated by the sponsor on 12 Sep 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Mental Health and Symptoms of Energy Deficiency (REDs) in Young Biathletes.
- ClinicalTrials.gov ID
- NCT06487260
- Acronym / sponsor ID
- 733966
- Conditions
- Mental Health Issue, Physical Health
- Keywords
- biathlon, biathletes, nordic skiing, REDs, LEA, Mental health, IBU, DXA
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 28 participants (actual)
- Lead sponsor
- Ostfold University CollegeUniversity, hospital or other
- Collaborators
- Norwegian School of Sport Sciences, Inland Norway University of Applied Sciences, International Biathlon Union
- Study start
- 21 Aug 2024 (actual)
- Primary completion
- 10 Dec 2024 (actual)
- Study completion
- 10 Dec 2024 (actual)
- First posted
- 5 Jul 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Participation in weight-sensitive sports has been identified as a significant risk factor for low energy availability (LEA), relative energy deficiency in sport (REDs), and eating disorders. However, there is limited knowledge regarding the symptoms of LEA, REDs, and mental health issues in young biathletes. This study investigates the prevalence of these symptoms in young, talented biathletes from one of the leading nations in the sport. By including athletes of both sexes aged 16, 17, and 18, this study aim to determine whether symptom severity is associated with age, sex, or performance level. Furthermore, this study will explore the experiences of biathletes aged 18 and older with the new best practice guidelines for body composition assessment, designed by an IOC working group on the REDs consensus update of 2023 to safeguard athletes from negative experiences. The insights gained from this study may enhance the understanding of the frequency of health symptoms, the age or performance level at which symptoms typically increase, and the specific needs of athletes to ensure their safety and well-being in the sport.
Detailed description
Being physically active is associated with a range of positive mental, physical, and psychosocial health benefits. Although athletes might be expected to enjoy these positive health effects, studies also show that high-level competitive athletes have a similar prevalence of certain mental disorders as the general population. Beyond reflecting the normal occurrence of mental health challenges in the population, performance expectations related to participation in competitive sports may contribute to many athletes experiencing periods or persistent mental health issues. Despite the increased openness in recent years about top athletes experiencing mental stress and disorders, there is little knowledge about the overall prevalence, especially among younger athletes at sub-elite performance levels. In 2023, Norwegian media highlighted a serious concern about the mental health of young biathletes, underscored by an alarming and unexpectedly high incidence of suicide among young biathlon talents.
Ski sports are among many weight-sensitive sports challenged by a high prevalence of eating disorders, particularly among female athletes. Eating disorders are linked to a high risk of low energy availability (LEA) and the syndrome relative energy deficiency (REDs) in athletes. REDs involve a variety of health challenges that follow LEA, and mental health issues can be both contributing factors to and effects of LEA. Knowledge about the prevalence of LEA, eating disorders, and REDs specifically among biathletes is very limited. A recent study found that a group of young female skiers (17 years old), including biathletes, on average consumed too little energy and carbohydrates relative to their athletic needs, and that 17% had LEA. A previous study recruited female athletes aged 25 years with self-expressed concern for REDs. This study found an overall prevalence of eating disorders corresponding to 21.3%, and that 65% in the sub-group of biathletes had LEA. Athletes with LEA symptoms had both lower weight and BMI, and the highest prevalence of eating disorders. At the same time, there is a study with young male skiers (including biathletes) aged 16 years, which finds a high prevalence of low bone mass and loss of bone mass through puberty. Low bone mass is one of the cardinal signs of LEA and REDs.
There is a need to map the prevalence of mental health issues and symptoms of REDs in young biathletes. Such knowledge can be used to understand the extent, specific vulnerable periods, and potentially explain why some are more affected than others. This knowledge can be used to more easily identify those who may need help and to initiate early interventions before the severity and complexity increase. In this exploratory national cross-sectional study, the aim is to map mental health and symptoms of REDs in young biathlon talents aged 16-19 years. In connection with mapping the physical symptoms of REDs, this study also aim to evaluate athlete experiences when closely following the new proposed guidelines and recommendations for measuring body composition in athletes. The guidelines (three members of this project group contributed in producing those guidelines) were given to protect athletes from negative experiences with body evaluation, so fewer are at risk of developing a negative body image and disordered eating behaviors or eating disorders.
This study works from the following hypotheses: 1) The prevalence of body dissatisfaction, depression, eating disorders, and symptoms of REDs (hereafter: outcome measures) is low in 16-year-old biathletes; 2) the prevalence of outcome measures increases with age and is therefore higher in 18-year-old biathletes; 3) the prevalence of eating disorders and symptoms of REDs is higher in girls than boys in all age groups; 4) young biathletes aged 18 years experience a professional and safe implementation of body composition evaluation when recommended guidelines are followed.
Study design
- Observational model
- Case only
- Time perspective
- Cross-sectional
- Target follow-up
- 1 Day
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Biathletes 16 years of age | – | –Norwegian, competetive biathletes of both sexes, aged 16 years of age |
| Biathletes 17 years of age | – | –Norwegian, competetive biathletes of both sexes, aged 17 years of age |
| Biathlete 18 years of age | – | –Norwegian, competetive biathletes of both sexes, aged 18 years of age |
Who may qualify
- Ages
- 16 to 20 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- Young, competetive biathletes in age-range 16-20 years of age, living in Norway.
Key inclusion criteria (2 listed)
- competetive biathlete
- live in Norway, speaks or understand written and oral Norwegian
Key exclusion criteria (1 listed)
- injured and prevented from regular training (3 months leading up to recruitement)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Diagnosis of Eating Disorder
Time frame: September 2024
Number of athletes with a diagnosable eating disorder, and type of eating disorder. Evaulation will be by a clinical interview following the validated Eating Disorder Examination Inverview.
Symptom of Eating Disorders
Time frame: September 2024
Number of athletes with symptoms of eating disorders, and type of eating disorder. Evaulation will be by a selfreport responding to the Eating Disorder Examination Questionnaire.
Symptoms of Depression
Time frame: September 2024
Severity in symptoms of depression and number of athletes with symptoms of depression. Evaulation will be by selfreport, responding to the Beck Depression Inventory v-2
Symptoms of Low Energy Availability (LEA)
Time frame: September 2024
Severity in symptoms of LEA, evaluated by selfreport, responding to the Low Energy Availability for Females Questionnaire, and Low Energy Availiability for males Questionnaire.
Body composition
Time frame: September 2024
Body composition (fat mass and lean body mass) measured by DXA, as part of the evaluation of fitness in biathletes 18 years or older
Bone mineral Density
Time frame: September 2024
Bone mineral density in biathletes 18 years or older, as a fitness evaluation and symptom of LEA
5 secondary outcomes
Blood work, energy metabolism
Time frame: September 2024
Blood pressure, orthostatic
Time frame: September 2024
Blood pressure, resting
Time frame: September 2024
Resting heart rate
Time frame: September 2024
Indirect calorimetry
Time frame: September 2024
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Sep 2025.
- Individual participant dataSharing planned: Yes. Undisclosed data can be shared upon reasonable request.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Therese F Mathisen, PhD principal investigator
Associate Professor
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Mental Health Issue and Physical Health, run by Ostfold University College at 2 sites in Norway.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 12 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Norway. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Diagnosis of Eating Disorder (time frame: September 2024). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Sep 2025.