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The Effects of Intermittent Water Consumption and Restriction on Serum Electrolyte Levels in Professional Football Players During Competition

NCT07710092 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 22

Last updated 2026-07-17

No results posted yet for this study

Summary

Background: In sports requiring intense physical exertion, particularly in endurance-based disciplines such as football, exercise-induced fluid and electrolyte losses can have adverse effects on thermoregulation, cardiovascular stability, and neuromuscular functions. Failure to balance these losses with adequate and timely rehydration increases the risk of performance decrement and injury. Although the literature indicates that intermittent and individualized fluid intake can mitigate these physiological effects, experimental studies conducted under field conditions with professional athletes remain limited. In this context, the purpose of this study is to evaluate the effects of intermittent water consumption administered during competition on exercise-induced changes in body weight and basic serum electrolyte levels (Na⁺, K⁺, Ca²⁺, Cl-) in professional football players.

Methods: Twenty-two male football players participated in the study and were randomly assigned to either the experimental (intermittent water intake, n=11) or control (ad libitum water intake, n=11) group. Both groups played a 90-minute match; body weight and serum electrolyte levels were measured before and after the competition. The experimental group was provided with a total of 10 mL/kg of plain water, administered before the match and at half-time.

Conditions

  • Intermittent Water Intake

Interventions

DIETARY_SUPPLEMENT

Intermittent Plain Water Intake

Participants in the experimental group received plain water according to body weight. The total amount was calculated as 2 × 5 mL/kg and was administered in two equal doses: 15 minutes before the start of the football match and immediately after the first half. Water intake was directly observed and recorded.

Sponsors & Collaborators

  • Selcuk University

    lead OTHER

Principal Investigators

  • Süleyman Patlar, Prod. Dr. · Selcuk University

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2016-01-10
Primary Completion
2016-01-25
Completion
2016-01-25

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07710092 on ClinicalTrials.gov