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Related Concept Videos

Factors Influencing Heart Rate01:30

Factors Influencing Heart Rate

6.1K
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,...
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Pulse rhythm01:30

Pulse rhythm

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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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Exercise Stress Test01:26

Exercise Stress Test

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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
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Regulation of Heart Rates01:31

Regulation of Heart Rates

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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...
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Assessment of apical radial pulse01:25

Assessment of apical radial pulse

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Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
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Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

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Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
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Related Experiment Video

Updated: Jan 9, 2026

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
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Heart Rate and Heart Rate Variability as Indicators for Stress and Skill Development in Minimally-Invasive Surgery.

Liv Arning, Amir Ebrahimzadeh, Sami Beirami

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 3, 2025
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    Summary

    Intra-operative stress measurement can assess surgeon skill, enabling adaptive surgical assistance systems. This research links stress levels to performance, improving training and system acceptance for better clinical outcomes.

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    Area of Science:

    • Medical technology
    • Surgical training
    • Human factors engineering

    Background:

    • Surgeon skill assessment is crucial for adaptive surgical assistance systems.
    • Dynamic adaptation requires objective, task-independent skill evaluation.
    • Intra-operative stress is hypothesized to correlate with surgical task difficulty and skill.

    Purpose of the Study:

    • To investigate the relationship between physiological and subjective stress measures and surgical performance.
    • To explore the impact of training on stress levels during minimally-invasive surgery simulation.
    • To determine the feasibility of using stress assessment for skill evaluation in adaptive surgical systems.

    Main Methods:

    • Collected heart rate and mental load self-assessment data from ten participants.
    • Utilized a minimally-invasive surgery simulator for repetitive training sessions.
    • Analyzed stress data across different time scales to assess training effects and performance correlation.

    Main Results:

    • A clear relationship was observed between experienced stress levels and surgical performance.
    • Training sessions demonstrated effects on stress levels across various time scales.
    • Physiological and subjective stress measures showed correlation with surgical skill.

    Conclusions:

    • Intra-operative stress assessment is a viable method for task-independent skill evaluation.
    • Adaptive surgical assistance systems can be enhanced by incorporating stress-based skill assessment.
    • Findings provide a foundation for advanced surgical training tools and improved system acceptance.