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Related Concept Videos

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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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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Factors Influencing Heart Rate01:30

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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.
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Assessment of the Cardiovascular System I: Subjective Data01:23

Assessment of the Cardiovascular System I: Subjective Data

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A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
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Increased pulse rate01:17

Increased pulse rate

645
Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
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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.
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Related Experiment Video

Updated: Jun 6, 2025

Evaluation of Commercial-Off-The-Shelf Wrist Wearables to Estimate Stress on Students
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Relationship Between Heart Rate and Perceived Stress in Intensive Care Unit Residents: Exploratory Analysis Using

Ruijing Wang1, Olya Rezaeian1, Onur Asan1

  • 1Department of Systems and Enterprises, Stevens Institute of Technology, Hoboken, NJ, United States.

JMIR Formative Research
|November 27, 2024
PubMed
Summary

Intensive care unit (ICU) residents experience high stress. While heart rate data from wearables shows modest correlations with self-reported stress, it requires combination with other measures for accurate assessment.

Keywords:
Fitbithealth care workerheart rateintensive care unitmental healthoccupational healthperceived stressphysicianproviderresidentsecondary data analysisself-reportedstresstraineewearable

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Area of Science:

  • Medical Physiology
  • Occupational Health
  • Digital Health

Background:

  • Intensive care unit (ICU) residents face significant occupational stress.
  • This stress can negatively impact mental well-being and job performance.
  • Wearable devices offer a potential method for monitoring physiological stress responses.

Purpose of the Study:

  • To analyze continuous heart rate data and self-reported stress in ICU residents.
  • To investigate correlations between physiological responses, stress levels, and daily stressors.
  • To explore the utility of wearable technology in stress assessment for medical trainees.

Main Methods:

  • Secondary analysis of Fitbit Charge 3 data from 57 ICU residents over 3 weeks.
  • Collected continuous heart rate and daily stress survey data.
  • Employed correlation analyses and mixed-effect models to examine relationships.

Main Results:

  • Lower heart rate percentiles showed modest correlations with stress; higher percentiles did not.
  • Midday vs. end-of-day stress levels differed significantly, but not always reflected in heart rate.
  • Stress levels significantly influenced mean heart rate in mixed-effect models (P=.03).

Conclusions:

  • Heart rate as a sole stress indicator in high-stress environments like the ICU is complex.
  • Heart rate shows a modest correlation with self-reported stress, particularly in mixed-effect models.
  • Integrating heart rate with other physiological and psychological measures is recommended for comprehensive stress assessment.