<clinical_study>
  <!-- This xml conforms to an XML Schema at:
    https://clinicaltrials.gov/ct2/html/images/info/public.xsd -->
  <required_header>
    <download_date>ClinicalTrials.gov processed this data on September 20, 2023</download_date>
    <link_text>Link to the current ClinicalTrials.gov record.</link_text>
    <url>https://clinicaltrials.gov/ct2/show/NCT03232229</url>
  </required_header>
  <id_info>
    <org_study_id>Suppl Tennis</org_study_id>
    <nct_id>NCT03232229</nct_id>
  </id_info>
  <brief_title>Supplementation in Tennis</brief_title>
  <official_title>Supplementation in Tennis: an Observational Study</official_title>
  <sponsors>
    <lead_sponsor>
      <agency>Vrije Universiteit Brussel</agency>
      <agency_class>Other</agency_class>
    </lead_sponsor>
  </sponsors>
  <source>Vrije Universiteit Brussel</source>
  <oversight_info>
    <is_fda_regulated_drug>No</is_fda_regulated_drug>
    <is_fda_regulated_device>No</is_fda_regulated_device>
  </oversight_info>
  <brief_summary>
    <textblock>
      The aim of this observational study is to examine supplementation (e.g. caffeine or creatin)&#xD;
      use in both male and female professional tennis players.&#xD;
    </textblock>
  </brief_summary>
  <overall_status>Unknown status</overall_status>
  <last_known_status>Not yet recruiting</last_known_status>
  <start_date type="Anticipated">October 1, 2017</start_date>
  <completion_date type="Anticipated">March 1, 2019</completion_date>
  <primary_completion_date type="Anticipated">September 30, 2018</primary_completion_date>
  <study_type>Observational</study_type>
  <has_expanded_access>No</has_expanded_access>
  <study_design_info>
    <observational_model>Cohort</observational_model>
    <time_perspective>Cross-Sectional</time_perspective>
  </study_design_info>
  <primary_outcome>
    <measure>Supplementation questionnaire</measure>
    <time_frame>October 2017 - September 2018</time_frame>
    <description>The participants will be asked about their supplementation use using a questionnaire. Participants will have a list of possible supplements on this questionnaire and they will be asked to indicate which supplement they take on a regular basis (at least once every three months).&#xD;
The primary outcome measure will be the frequency (as a percentage) of the supplement intake.</description>
  </primary_outcome>
  <number_of_groups>1</number_of_groups>
  <enrollment type="Anticipated">200</enrollment>
  <condition>Supplements</condition>
  <condition>Tennis</condition>
  <condition>Nutrition</condition>
  <arm_group>
    <arm_group_label>Tennis players</arm_group_label>
  </arm_group>
  <eligibility>
    <study_pop>
      <textblock>
        The participants will have to be professional tennis players, both male and female.&#xD;
      </textblock>
    </study_pop>
    <sampling_method>Probability Sample</sampling_method>
    <criteria>
      <textblock>
        Inclusion Criteria:&#xD;
&#xD;
          -  Professional tennis player&#xD;
&#xD;
        Exclusion Criteria:&#xD;
&#xD;
          -  Any metabolic disease or a possible pregnancy&#xD;
      </textblock>
    </criteria>
    <gender>All</gender>
    <minimum_age>18 Years</minimum_age>
    <maximum_age>40 Years</maximum_age>
    <healthy_volunteers>Accepts Healthy Volunteers</healthy_volunteers>
  </eligibility>
  <verification_date>July 2017</verification_date>
  <study_first_submitted>July 25, 2017</study_first_submitted>
  <study_first_submitted_qc>July 25, 2017</study_first_submitted_qc>
  <study_first_posted type="Actual">July 27, 2017</study_first_posted>
  <last_update_submitted>July 25, 2017</last_update_submitted>
  <last_update_submitted_qc>July 25, 2017</last_update_submitted_qc>
  <last_update_posted type="Actual">July 27, 2017</last_update_posted>
  <responsible_party>
    <responsible_party_type>Principal Investigator</responsible_party_type>
    <investigator_affiliation>Vrije Universiteit Brussel</investigator_affiliation>
    <investigator_full_name>Laurent Chapelle</investigator_full_name>
    <investigator_title>Researcher</investigator_title>
  </responsible_party>
  <patient_data>
    <sharing_ipd>No</sharing_ipd>
    <ipd_description>Individual participant data will not be shared with other researchers.</ipd_description>
  </patient_data>
  <!-- Results have not yet been posted for this study                                          -->
</clinical_study>


download date: ClinicalTrials.gov processed this data on September 20, 2023
link text: Link to the current ClinicalTrials.gov record.
url: https://clinicaltrials.gov/ct2/show/NCT03232229
org study id: Suppl Tennis
nct id: NCT03232229
lead sponsor: 
is fda regulated drug: No
is fda regulated device: No
The aim of this observational study is to examine supplementation (e.g. caffeine or creatin)
      use in both male and female professional tennis players.
observational model: Cohort
time perspective: Cross-Sectional
measure: Supplementation questionnaire
time frame: October 2017 - September 2018
description: The participants will be asked about their supplementation use using a questionnaire. Participants will have a list of possible supplements on this questionnaire and they will be asked to indicate which supplement they take on a regular basis (at least once every three months).
The primary outcome measure will be the frequency (as a percentage) of the supplement intake.
arm group label: Tennis players
study pop: 
sampling method: Probability Sample
criteria: 
gender: All
minimum age: 18 Years
maximum age: 40 Years
healthy volunteers: Accepts Healthy Volunteers
responsible party type: Principal Investigator
investigator affiliation: Vrije Universiteit Brussel
investigator full name: Laurent Chapelle
investigator title: Researcher
sharing ipd: No
ipd description: Individual participant data will not be shared with other researchers.