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Completed

NCT Number: NCT05231434

Influence of Hydration and Functional Aerobic Capacity on the Nonlinear Dynamics of Heart Rate in Healthy Individuals

The objective of this study is to analyze the influence of hydration and functional aerobic capacity in young and healthy individuals on non-linear heart rate dynamics as a technique that favor faster and more efficient recovery cardiac autonomic modulation.

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Key information

Conditions

Healthy Behavior Motor Activity

Age range

18 year–30 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Universidade Estadual Júlio de Mesquita Filho

Presidente Prudente, São Paulo, 19060-300, Brazil

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • include healthy and male individuals, age between 18 and 30 years and physically active.

Exclusion criteria

  • individuals who smoke and drink, those who have infections, metabolic and respiratory diseases that may interfere in the results and orthopedic problems.

Treatment and study plan

Water

Other

hydration with mineral water in 10 equal portions, administered at regular intervals from the 15th minute of exercise until the end of the recovery period.

aerobic activity

Other

aerobic activity

Primary outcomes

  1. Blood Pressure

    Time frame: up to 3 weeks

    Will occur indirectly, using a stethoscope and an aneroid sphygmomanometer in the left arm. The indicated values will be registered in an individual form. To avoid errors in the determination of blood pressures in volunteers, a single evaluator will measure these variables throughout the experimental procedure. Data will be collected at the end of the 10 minutes of initial rest and at minutes 30, 60 and 90 during exercise on the treadmill, as well as will be collected at minutes 1, 5, 10, 20, 30, 40, 50 and 60 of recovery.

  2. Heart Rate

    Time frame: up to 3 weeks

    The heart rate will be captured beat by beat using the Polar RS800CX frequency meter, equipment previously validated to capture this parameter. Data will be collected at the end of the 10 minutes of initial rest and at minutes 30, 60 and 90 during exercise on the treadmill, as well as will be collected at minutes 1, 5, 10, 20, 30, 40, 50 and 60 of recovery.

  3. Autonomic Modulation - SD1 index

    Time frame: up to 3 weeks

    the data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. The SD1 index corresponds to the dispersion of points perpendicular to the line of identity of the ellipse obtained from the Poincaré plot. Expressed in milliseconds.

  4. Autonomic Modulation - SD2 index

    Time frame: up to 3 weeks

    The data for this evaluation will be collected using a heart rate monitor that registers the heart rate beat by beat and provides information regarding the RR intervals. The SD2 index corresponds to the dispersion of points along the line of identity of the ellipse obtained from the Poincaré plot. Expressed in milliseconds.

Sponsors and collaborators

Lead sponsor

Universidade Estadual Paulista Júlio de Mesquita Filho

Other

Registry information

Official study title

Influence of Hydration and Functional Capacity on the Recovery of Nonlinear Heart Rate Dynamics in Healthy Individuals: Crossover Clinical Trial

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Feb 9, 2022
Registry last updated
Feb 9, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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