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The Effects of Dehydration on the Performance of Judoka

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ClinicalTrials.gov Identifier: NCT03677674
Recruitment Status : Unknown
Verified September 2018 by Laurent Chapelle, Vrije Universiteit Brussel.
Recruitment status was:  Not yet recruiting
First Posted : September 19, 2018
Last Update Posted : September 19, 2018
Sponsor:
Information provided by (Responsible Party):
Laurent Chapelle, Vrije Universiteit Brussel

Study Description
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Brief Summary:
Dehydration is a common phenomenon in judo that can lead to negative performance such as a decline in strength, a decline in anaerobic performance, a reduced body fluid balance, glycogen depletion and worsened psychological parameters. Therefore, we want to simulate several judo combats and look at the performances whether they change during a competition day. We also want to see if the results are different in a dehydrated versus euhydrated state.

Condition or disease Intervention/treatment Phase
Dehydration Other: Dehydration Not Applicable

Study Design
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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 27 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Other
Official Title: The Effects of Dehydration on the Performance of Judoka
Estimated Study Start Date : October 1, 2018
Estimated Primary Completion Date : December 20, 2019
Estimated Study Completion Date : January 30, 2020

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Dehydration

Arms and Interventions
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Arm Intervention/treatment
Experimental: dehydrated
The participants will be dehydrated (at least 2% of their body weight) before performing the Sterkowicz test.
 Other: Dehydration
Participants will be dehydrated (2% of their body weight) using sauna.
No Intervention: euhydrated
The participants will be normally hydrated (= euhydration) before performing the Sterkowicz test (i.e. no specific intervention will be implemented).


Outcome Measures
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Primary Outcome Measures :
  1. Sterkowicz test [ Time Frame: Up to 3 weeks ]
    Sterkowicz test


Secondary Outcome Measures :
  1. heart rate [ Time Frame: Up to 3 weeks ]
    Heart rate will be determined using the Polar H1 (Polar, Kempele, Finland)

  2. Body weight [ Time Frame: Up to 3 weeks ]
    Body weight will be assessed to the nearest 0.002 kg using the WLT 60/120/X/L3 scale (All Scales Europe, Veen, The Netherlands)

  3. Borg Rating of Perceived Exertion Scale [ Time Frame: Up to 3 weeks ]
    The Borg Rating of Perceived Exertion scale is a numerical scale (to determine exertion) that ranges from 6 to 20, where 6 means "no exertion at all" and 20 means "maximal exertion.

  4. body temperature [ Time Frame: Up to 3 weeks ]
    Body temperature will be determined using the Adtemp 421 Digital Ear Thermometer (American Diagnostics Corporations, Hauppauge, New York, United States of America)


Eligibility Criteria
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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • judoka
  • minimum 18 years
  • men and women
  • only dehydration: sauna, warm bath, sweat suit

Exclusion Criteria:

  • injured
  • sick
  • not underaged (18 years)
Contacts and Locations
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No Contacts or Locations Provided
More Information
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Top of Page Study Description Study Design Arms and Interventions Outcome Measures Eligibility Criteria Contacts and Locations More Information
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Responsible Party: Laurent Chapelle, PhD student, Vrije Universiteit Brussel
ClinicalTrials.gov Identifier: NCT03677674    
Other Study ID Numbers: VrijeUniversiteitB
First Posted: September 19, 2018    Key Record Dates
Last Update Posted: September 19, 2018
Last Verified: September 2018

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Dehydration
Water-Electrolyte Imbalance
Metabolic Diseases
Pathologic Processes