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

NCT05231434 | Completed

• 1 other identifier: 38152620.5.0000.5402
• Study Type: interventional
• Target: 31
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Healthy

Keywords

exercise; hydration; non-linear dynamic; Autonomic nervous system

Outcome Measures

Primary Outcomes (4)

• Blood Pressure

  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.

  up to 3 weeks

• Heart Rate

  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.

  up to 3 weeks

• Autonomic Modulation - SD1 index

  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.

  up to 3 weeks

• Autonomic Modulation - SD2 index

  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.

  up to 3 weeks

Study Arms (2)

Control protocol

ACTIVE COMPARATOR

The control protocol will consist of an initial 10 minutes of rest, followed by 90 minutes of aerobic activity and 60 minutes of the final recovery. Hydration will not be allowed throughout the protocol

Other: aerobic activity

Hydration protocol

EXPERIMENTAL

The control protocol will consist of an initial 10 minutes of rest, followed by 90 minutes of aerobic activity and 60 minutes of the final recovery. In this protocol, volunteers will be hydrated with mineral water from the 15th minute of exercise until the end of recovery

Other: water; Other: aerobic activity

Interventions

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.

Hydration protocol

aerobic activity OTHER

aerobic activity

Control protocol; Hydration protocol

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

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

You may not qualify if:

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

Sponsors & Collaborators

• Universidade Estadual Paulista Júlio de Mesquita Filho: lead

Study Sites (1)

Universidade Estadual Júlio de Mesquita Filho

Presidente Prudente, São Paulo, 19060-300, Brazil

Location

MeSH Terms

Conditions

Motor Activity

Interventions

Water; Exercise

Condition Hierarchy (Ancestors)

Behavior

Intervention Hierarchy (Ancestors)

Hydroxides; Alkalies; Inorganic Chemicals; Anions; Ions; Electrolytes; Oxides; Oxygen Compounds; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• thamyres rangel R barros

  Universidade Estadual Júlio de Mesquita Filho

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: SUPPORTIVE CARE
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: January 5, 2022
• First Posted: February 9, 2022
• Study Start: June 15, 2020
• Primary Completion: April 16, 2021
• Study Completion: April 16, 2021
• Last Updated: February 9, 2022

Record last verified: 2022-01

Locations

BR (1)