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Related Concept Videos

Factors Influencing Heart Rate01:30

Factors Influencing Heart Rate

The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
Decreased pulse rate01:14

Decreased pulse rate

Bradycardia is a medical condition in which the heart rate is slower than normal. It occurs when the heart's natural pacemaker, the sinus node, generates slower electrical impulses than the standard rhythm. In adults, bradycardia is diagnosed when the pulse rate falls below 60 beats per minute, indicating a deviation from the normal heart rate range.
There are specific risk factors that can elevate the likelihood of developing bradycardia. Advanced age is a significant factor, with bradycardia...
Regulation of Heart Rates01:31

Regulation of Heart Rates

The regulation of heart rate is a complex process controlled by the autonomic nervous system (ANS), hormonal influences, and intrinsic cardiac mechanisms. The ANS has two main components: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).
The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...
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 Stress Test01:26

Exercise Stress Test

Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
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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Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
08:12

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions

Published on: June 5, 2019

Decrease in heart rate after longitudinal participation in the Groningen Active Living Model (GALM) recreational

Johan de Jong1, Koen Lemmink, Erik Scherder

  • 1School of Sports Studies, Hanze University Groningen, University of Applied Sciences, Groningen, The Netherlands. jo.de.jong@pl.hanze.nl

Journal of Sports Sciences
|July 25, 2009
PubMed
Summary
This summary is machine-generated.

Regular recreational sports participation in older adults significantly improved cardiovascular function. Heart rate decreased during submaximal exercise, indicating enhanced fitness over 18 months in the Groningen Active Living Model program.

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Area of Science:

  • Gerontology
  • Cardiovascular Physiology
  • Exercise Science

Background:

  • Sedentary or underactive older adults often exhibit suboptimal cardiovascular function.
  • Recreational sports programs may offer a viable intervention to improve health in this demographic.

Purpose of the Study:

  • To investigate changes in heart rate during submaximal exercise as an indicator of cardiovascular function.
  • To assess the impact of the Groningen Active Living Model recreational sports program on sedentary older adults.

Main Methods:

  • A repeated measurement design was employed over 18 months.
  • 151 sedentary older adults participated, providing 398 heart rate files.
  • Multi-level analyses, including growth and final models, were utilized.

Main Results:

  • Significant decreases in mean heart rate were observed across all tested walking speeds (4-7 km/h).
  • Body mass index (BMI) and sex were significant covariates of mean heart rate.
  • Energy expenditure for leisure-time physical activities showed a significant relationship with heart rate at 7 km/h.

Conclusions:

  • Participation in the Groningen Active Living Model program led to significant improvements in cardiovascular function in older adults.
  • Observed decreases in heart rate during submaximal exercise suggest enhanced cardiac efficiency and fitness.