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Related Concept Videos

Exercise and Cardiac Output01:17

Exercise and Cardiac Output

Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be met...
Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...

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Related Experiment Video

Updated: Jul 1, 2026

Measuring Cardiac Autonomic Nervous System (ANS) Activity in Children
09:45

Measuring Cardiac Autonomic Nervous System (ANS) Activity in Children

Published on: April 29, 2013

Early Improvement in Cardiac Autonomic Modulation After a Recreational Physical Training Program in Healthy Children.

Livia Victorino de Souza1, Maria Eduarda de Araújo Almeida Muniz2, Danilo Rufino Cavalcante de Souza3

  • 1Division of Nephrology, School of Medicine, Federal University of São Paulo, São Paulo, Brazil.

Pediatric Cardiology
|June 30, 2026
PubMed
Summary

Recreational physical training improved cardiac autonomic modulation in children, enhancing heart rate variability and parasympathetic activity. This suggests early autonomic adaptations from physical activity in youth.

Keywords:
Autonomic nervous systemChildExercise

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Last Updated: Jul 1, 2026

Measuring Cardiac Autonomic Nervous System (ANS) Activity in Children
09:45

Measuring Cardiac Autonomic Nervous System (ANS) Activity in Children

Published on: April 29, 2013

A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
04:24

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Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
12:59

Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People

Published on: July 5, 2017

Area of Science:

  • Pediatric Cardiology
  • Autonomic Nervous System
  • Exercise Physiology

Background:

  • Physical activity significantly impacts cardiovascular regulation in children.
  • Limited evidence exists on cardiac autonomic responses to recreational physical training (RPT) in healthy pediatric populations.
  • Understanding these responses is crucial for promoting cardiovascular health in children.

Purpose of the Study:

  • To investigate the changes in cardiac autonomic modulation following a 10-week RPT program in healthy children.
  • To assess the impact of RPT on heart rate variability (HRV) and other cardiovascular markers.

Main Methods:

  • A quasi-experimental pre-post intervention study design was employed.
  • Seventy-four healthy children (mean age 8.6 years) participated in a 10-week RPT program.
  • Cardiac autonomic modulation was assessed using short-term heart rate variability (HRV) analysis at rest, alongside anthropometric, hemodynamic, and cardiorespiratory measurements.

Main Results:

  • Significant increases in time-domain HRV measures (SDNN and RMSSD) were observed post-intervention, indicating enhanced cardiac autonomic function with large effect sizes.
  • Waist circumference decreased significantly, although body mass index percentile and blood pressure remained unchanged.
  • No significant changes were detected in frequency-domain HRV or estimated peak oxygen uptake.

Conclusions:

  • Participation in a 10-week RPT program led to favorable changes in cardiac autonomic modulation in healthy children.
  • RPT specifically improved global heart rate variability and parasympathetic activity.
  • These findings suggest that RPT can induce early autonomic adaptations in children, independent of changes in traditional cardiovascular risk markers.