Related Experiment Video
Updated: Feb 14, 2026
04:20
Integration of Brain Tissue Saturation Monitoring in Cardiopulmonary Exercise Testing in Patients with Heart Failure
Published on: October 1, 2019
6.3K
Inter-observer reliability of preoperative cardiopulmonary exercise test interpretation: a cross-sectional study
T E F Abbott1, M Gooneratne2, J McNeill2
1William Harvey Research Institute, Queen Mary University of London, London, UK; Barts Health NHS Trust, London, UK.
British Journal of Anaesthesia
|February 18, 2018
Summary
Interpreting cardiopulmonary exercise testing (CPET) numerical values for anaerobic threshold (AT) and peak oxygen consumption (VO2 peak) showed good reliability among observers. However, agreement on the presence of a reportable AT or VO2 peak was less consistent.
Area of Science:
- Cardiology
- Pulmonology
- Exercise Physiology
Background:
- Cardiopulmonary exercise testing (CPET) is crucial for preoperative risk assessment.
- The reliability of CPET interpretation requires further investigation.
Purpose of the Study:
- To assess the inter-observer reliability of preoperative CPET interpretation.
- To evaluate the consistency of interpreting key CPET variables.
Main Methods:
- Prospective, multi-center observational study.
- Experienced professionals interpreted 100 preoperative CPETs each using standardized software.
- Inter-observer reliability measured using intra-class correlation coefficient (ICC) for anaerobic threshold (AT) and peak oxygen consumption (VO2 peak).
Main Results:
- Good inter-observer agreement for numerical values of AT (ICC 0.83) and VO2 peak (ICC 0.88).
- Excellent agreement for identifying a reportable AT (ICC 0.93).
- Moderate agreement for identifying a reportable VO2 peak (ICC 0.73).
Conclusions:
- Inter-observer reliability for numerical CPET values is good.
- Agreement on the presence of reportable AT and VO2 peak values is less consistent.
Related Concept Videos
01:50Cross-Sectional Research
12.7K
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
12.7K
01:24Finding Volume Using Cross-Sectional Area
102
For solids whose cross-sectional areas vary in a predictable way, volume can be determined by integrating these areas along an axis perpendicular to the slices. This approach is particularly useful for polyhedral solids, where classical geometric formulas may not be immediately applicable. A tetrahedron provides a clear example of how cross-sectional integration can be applied to a three-dimensional object with continuously changing geometry.Consider a tetrahedron with height h and a base that...
102
01:26Profile Leveling and Cross Sections
1.7K
Profile leveling and cross-sections are surveying methods used to determine and document terrain elevations for infrastructure projects such as highways, railroads, canals, and pipelines. These methods provide data for earthwork planning and alignment of proposed routes. Profile leveling involves measuring elevations along a fixed line to create a vertical terrain profile. A surveyor sets up a leveling instrument at the benchmark (BM) and records a backsight (BS) to determine the...
1.7K
01:11Observational Studies
11.2K
Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
11.2K
02:30Naturalistic Observations
17.6K
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
17.6K
01:16Spinal Cord: Cross-sectional Anatomy
5.0K
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
Gray Matter and its Components
Central to the gray matter is...
5.0K