NCT04559542

Brief Summary

Athletes in martial arts compete in categories separated by body weight, hence, many athletes need to adjust their habitual body weight during periods with competition preparation. Athletes competing in weight sensitive sports are previously identified with an increased risk for symptoms of low energy availability and of disordered eating. The methods used for body weight regulation are varied, and athletes without professional competent support, are prone to rely on harmful methods. And of importance, female athletes respond more negatively to attempts of body weight reduction with regards to health effects. Athletes of martial art are not surrounded by the same professional competence seen in other organized sports within the international sport federations, and specifically health competence is lacking. Additionally, numbers of females competing in martial art have increased the last decade, but they still practice in a sport culture dominated by males; both with reference to the high number of male participants, and with reference to the coaches within this sport. Sports involving practice in intimate, physical interaction with coaches or opposing athletes, and in sports where clothing is minimal, may be a high risk of experiences of sexual harassment. There have been a few reports on harmful methods of body weight regulation within martial arts, however, little knowledge exists on the practice by female martial art athletes, and the related health effects. Information on experiences of sexual harassment have been sparse in sport generally, with very little knowledge from sports like martial arts specifically. This study aims to explore the practice of female martial art athletes on body weight regulation, recovery strategies, their body acceptance and symptoms of eating disorders, and any experiences of sexual harassment. Additionally, with regards to the recent onset of the Covid-19 pandemic, this study also explores the related experiences by the athletes on training- and eating routines.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
33

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Sep 2020

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 25, 2020

Completed
16 days until next milestone

Study Start

First participant enrolled

September 10, 2020

Completed
13 days until next milestone

First Posted

Study publicly available on registry

September 23, 2020

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 30, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2021

Completed
Last Updated

July 12, 2021

Status Verified

July 1, 2021

Enrollment Period

9 months

First QC Date

August 25, 2020

Last Update Submit

July 8, 2021

Conditions

Keywords

Mental healthEating disordersfemale athletesphysical healthBody dissatisfactionBody acceptancebody weight

Outcome Measures

Primary Outcomes (4)

  • Low energy availability for females questionnaire (LEAF-Q)

    Evaluating intensity in symptoms of low energy availability, with one general score, one subscale measuring symptoms of menstrual irregularities, and one subscale measuring symptoms of gastrointestinal dysfunction; the three scales having cut-off scores of ≥8 , ≥4 and ≥2, with higher scorings indicating higher clinical severity.

    Autumn 2020

  • Eating disorder examination questionnaire (EDE-q)

    Measuring symptoms of eating disorders and frequency of eating disordered behavior, resulting in one total score, and four subscales (figure concern, weight concern, eating concern and eating restriction). A total score of ≥2.5 indicates high probability of having an eating disorder. Additionally, the scales measures frequency of disordered eating behavior, for which ≥1 episode per week of binge-eating and/or ≥1 episode per week of purging behavior, over a total period of ≥3 months, qualifies for an diagnosis of eating disorder.

    Autumn 2020

  • Body Weight regulation strategies, selfreported

    Reports on methods complied with, to achieve body weight reduction (Predefined answers, including an "other" option)

    Autumn 2020

  • Body appreciation scale (BAS-2)

    Evaluates the level of body appreciation and acceptance. Questionnaire contains 10-items with a Likert scale ranging from 1 (Never) to 5 (Always), with a higher average score indicating a higher level of body appreciation.

    Autumn 2020

Secondary Outcomes (9)

  • Exercise frequency, selfreported according to a designed questionnaire

    Autumn 2020

  • Exercise duration, selfreported according to a designed questionnaire

    Autumn 2020

  • Exercise motivation, selfreported according to a designed questionnaire

    Autumn 2020

  • Exercise program variation, selfreported according to a designed questionnaire

    Autumn 2020

  • Physical activity level, objectively measured

    Autumn 2020

  • +4 more secondary outcomes

Study Arms (1)

Female material art athletes

Females practicing material art during recruitment time, in Oslo-area in Norway

Eligibility Criteria

Age16 Years - 40 Years
Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodProbability Sample
Study Population

Female martial art athletes within sports of boxsing, thaiboxing, kickboxsing, judo, jui jitsu, brasilian jui jitsu, submission wrestling, mixed martial arts, taekwondo og karate.

You may qualify if:

  • martial art athlete
  • living and training in Oslo-area (main capital) in Norway

You may not qualify if:

  • not matching sex, age or sport criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Norwegian school of sport sciences

Oslo, 0806, Norway

Location

MeSH Terms

Conditions

Body Weight ChangesSexual HarassmentCOVID-19Relative Energy Deficiency in SportPsychological Well-BeingFeeding and Eating DisordersBody Weight

Condition Hierarchy (Ancestors)

Signs and SymptomsPathological Conditions, Signs and SymptomsSexual BehaviorBehaviorSocial BehaviorPneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract DiseasesMental DisordersPersonal SatisfactionSigns and Symptoms, Digestive

Study Officials

  • Jorunn Sundgot-Borgen, PhD

    Norwegian School of Sport Sciences

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 25, 2020

First Posted

September 23, 2020

Study Start

September 10, 2020

Primary Completion

May 30, 2021

Study Completion

May 30, 2021

Last Updated

July 12, 2021

Record last verified: 2021-07

Data Sharing

IPD Sharing
Will not share

Data are kept within the scientific group

Locations