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Completed

NCT Number: NCT05179382

Integrated Analysis in Recovery After Exercise With and Without Hydration.

This study aims to evaluate post-exercise recovery in healthy young men submitted to a prolonged exercise protocol of submaximal intensity with or without water intake, from the integrated analysis of autonomic (heart rate variability indices), cardiovascular outcomes (systolic blood pressure, diastolic blood pressure and heart rate) and respiratory (oxygen saturation and respiratory frequency). In addition, it will also be evaluated whether the proposed model is able to estimate the number of individuals undergoing hydration that have better recovery.

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Key information

Conditions

Healthy

Age range

18 year–25 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Universidade Estadual Paulista Júlio de Mesquita Filho

Presidente Prudente, São Paulo, 19060900, 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 25 years and physically active.

Exclusion criteria

  • Volunteers with at least one of the following characteristics will be excluded: smoking, use of drugs that influence the autonomic activity of the heart, alcoholics, people with known metabolic and/or endocrine disorders, and sedentary individuals, insufficiently active and very active.

Treatment and study plan

Control protocol

Other

I.10 minutes of initial rest in the supine position; II. 90 minutes of treadmill aerobic exercise at an intensity of 60% of the vo2 peak; IV. 60 minutes of passive recovery in the supine position.

Hydration protocol

Other

I.10 minutes of initial rest in the supine position; II. 90 minutes of treadmill aerobic exercise at an intensity of 60% of the vo2 peak; IV. 60 minutes of passive recovery in the supine position. V. Water ingestion distributed in 10 equal portions, administered at regular intervals of 15 minutes from the 15th minute of exercise until the end of the recovery period.

Primary outcomes

  1. Blood Pressure

    Time frame: Acute evaluation during interventions

    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, 3, 5, 7, 10, 20, 30, 40, 50 and 60 of recovery.

  2. Heart Rate

    Time frame: Acute evaluation during interventions

    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, 3, 5, 7, 10, 20, 30, 40, 50 and 60 of recovery.

  3. Respiratory Rate

    Time frame: Acute evaluation during interventions

    The measurements will be performed by counting the breaths for one minute without the volunteer being aware of the process, so that the usual breathing characteristics are not modified. Data will be collected at the end of the 10 minutes of initial rest as well as will be collected at minutes 1, 3, 5, 7, 10, 20, 30, 40, 50 and 60 of recovery.

  4. Peripheral oxygen saturation

    Time frame: Acute evaluation during interventions

    Will be checked using a pulse oximeter. A pulse oximeter is a device that provides blood saturation readings, evaluating the absorption behavior of oxyhemoglobin and deoxyhemoglobin in relation to the lengths of red and infrared light. 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, 3, 5, 7, 10, 20, 30, 40, 50 and 60 of recovery.

  5. Autonomic Modulation - rMSSD index

    Time frame: Acute evaluation during interventions

    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 rMSSD index corresponds to the root-mean square of differences between adjacent normal RR intervals in a time interval, expressed in milliseconds.

  6. Autonomic Modulation - SDNN index

    Time frame: Acute evaluation during interventions

    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 SDNN index corresponds to the standard deviation of all normal RR intervals recorded in a time interval, expressed in milliseconds.

  7. Autonomic Modulation - LF index

    Time frame: Acute evaluation during interventions

    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 LF index is the low-frequency component of the oscillatory components of heart rate variability, and ranges from 0.04 to 0.15 Hz.

  8. Autonomic Modulation - HF index

    Time frame: Acute evaluation during interventions

    he 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 HF index is the high-frequency component of the oscillatory components of heart rate variability, and ranges from 0.15 to 0.4 Hz.

  9. Autonomic Modulation - SD1 index

    Time frame: Acute evaluation during interventions

    he 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.

  10. Autonomic Modulation - SD2 index

    Time frame: Acute evaluation during interventions

    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

Luiz Carlos Marques Vanderlei

Other

Registry information

Official study title

Integrated Analysis of Autonomic, Cardiovascular and Respiratory Parameters in Recovery After Physical Exercise With and Without Water Ingestion: Crossover Non-randomized Clinical Test

Important dates

Study start
2022
Primary completion
2022
Study completion
2022
First posted
Jan 5, 2022
Registry last updated
Apr 22, 2024

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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