The Impact of Brief One-time Education and Coach Encouragement on Hydration Status in Child Judo Athletes

Not Applicable

Completed

• Conditions: Dehydration in Children; Dehydration

• Registration Number: NCT06992817
• Lead Sponsor: Kastamonu University

Brief Summary

Due to the lack of any comparative study related to effect of different hydration processes, this study aimed to compare the effectiveness of coach encouragement and hydration education in maintaining hydration status in child judo athletes

Detailed Description

Forty-seven athletes participated in a four-day training camp, during which hydration status was assessed before and after training sessions under three different conditions: no intervention (control), coach-guided fluid intake encouragement, and pre-training brief one-time hydration education. Athletes were unaware of the intervention conditions assigned to each day, and the educational session was delivered without emphasizing its experimental nature. To minimize potential carryover effects, the sequence of interventions was fixed. Hydration status was objectively monitored using urine specific gravity (USG) and urine color (UC) measurements.

Study Timeline

• Study Start: 2025-02-10
• Primary Completion: 2025-02-15
• Study Completion: 2025-02-15
• Status Verified: 2025-05
• Study First Submitted: 2025-05-06
• Study First Submitted QC: 2025-05-22
• Last Update Submitted: 2025-05-22
• Study First Posted: 2025-05-28
• Last Update Posted: 2025-05-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 74

Inclusion Criteria

• having at least three years of judo experience
• having at least a green belt
• being healthy enough to attend all training sessions during the camp.

Exclusion Criteria

• having less than three years of judo experience
• having orange belt or lower
• not being healthy enough to attend all training sessions during the camp.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Primary Outcome Measures

Name	Time	Method
hydration status (i.e., urine specific gravity and urine colour)	4 days	A urine sample was taken from each athlete one hour before and immediately after the exercise sessions. The samples were placed in plastic cups and USG was determined with a digital refractometer (ATAGO PAL-10S, Japan) in the training hall by the same researcher each time. USG measurements were carried out after the urine samples were refrigerated to temperature of 20° and UC was classified under LED light condition. As soon as the urine samples were analyzed for USG and classified for urine colour (UC), they were immediately disposed. USG was classified according to suggestion by National Athletic Trainers' Association as hydrated (USG \<1.020) and hypohydrated (USG≥1.020).

Trial Locations

Locations (1)

Bartın Judo Hall; 🇹🇷 Bartın, Turkey