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Related Concept Videos

Exercise and Cardiovascular Response01:20

Exercise and Cardiovascular Response

740
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...
740
Exercise Stress Test01:26

Exercise Stress Test

176
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
176
Exercise and Cardiac Output01:17

Exercise and Cardiac Output

929
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...
929

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Surgical Placement of Catheters for Long-term Cardiovascular Exercise Testing in Swine
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Cardiovascular handgrip responses during treadmill exercise: randomized pilot trial.

Marvyn de Santana do Sacramento1,2,3,4, Josias Melo Leite2, Maria Williane de Sousa Ribeiro5

  • 1Actus Cordios Cardiovascular Rehabilitation, Salvador, BA, Brazil.

Annals of Translational Medicine
|November 7, 2024
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Summary
This summary is machine-generated.

Adding handgrip (HG) exercise during interval training increases systolic blood pressure and cardiac workload, while preventing diastolic blood pressure drops, without affecting heart rate.

Keywords:
Hemodynamicsisometric exerciseperipheral vascular resistance

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Area of Science:

  • Exercise physiology
  • Cardiovascular responses
  • Hemodynamics

Background:

  • Isometric handgrip (HG) exercise acutely elevates blood pressure and can affect heart rate.
  • Limited evidence exists on the combined hemodynamic effects of interval training and HG exercise.
  • Understanding these combined effects is crucial for exercise prescription and cardiovascular health.

Purpose of the Study:

  • To investigate the acute hemodynamic responses during interval training alone and when combined with isometric HG exercise.
  • To determine the impact of varying HG intensities on cardiovascular variables.

Main Methods:

  • Pilot crossover trial with seven male volunteers.
  • Three protocols: interval training alone (PI), with 30% HG (PII), and 60% HG (PIII).
  • Evaluated changes in heart rate, double product, systolic, and diastolic blood pressure during treadmill sprints.

Main Results:

  • HG exercise did not alter heart rate but increased double product and systolic blood pressure.
  • Systolic blood pressure increases were higher with 30% and 60% HG compared to no HG.
  • Diastolic blood pressure showed a smaller drop with HG exercise during the final sprint.

Conclusions:

  • Combining HG exercise with interval training modulates hemodynamic responses.
  • HG increases systolic blood pressure and double product while attenuating diastolic blood pressure decline.
  • These effects occur without a significant increase in heart rate, suggesting a potential benefit for cardiovascular regulation during exercise.