Related Experiment Video
Updated: May 14, 2025

Conducting Maximal and Submaximal Endurance Exercise Testing to Measure Physiological and Biological Responses to Acute Exercise in Humans
Published on: October 17, 2018
Reference Values for Body Composition, Graded Exercise Testing, Hemodynamics, and Pulmonary Function in Male and
Grant M Tinsley1, Jacob A Mota, Michael J Conner
1From the Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, Texas (G.M.T., J.A.M., K.J.W., C.R.); and Front Line Mobile Health, Georgetown, Texas (M.J.C., A.J.).
Objective:
This analysis establishes reference values for health and performance indicators in a large sample of US firefighters.
Methods:
Data from 3867 firefighters (3651 males and 216 females) were analyzed to establish percentiles for anthropometrics, body composition, graded exercise, hemodynamics, and pulmonary function.
Results:
The median characteristics of all male firefighters included: age, 38 years; body mass index, 29.2 kg/m 2 ; body fat percentage, 24%; and VO 2 max 32 mL/kg/min. The median characteristics of all female firefighters included: age, 33 years; body mass index, 25.7 kg/m 2 ; body fat percentage, 29%; and VO 2 max, 31 mL/kg/min. Reference values stratified by decade of age were also established.
Conclusions:
The presented values can be used to contextualize the performance of individual firefighters and fire departments and to promote evidence-based discussions regarding physical evaluations and standards for occupational readiness.
More Related Videos
07:09Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise
Published on: February 20, 2017
08:44Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies
Published on: February 2, 2024
Related Concept Videos
Pulmonary Function Tests
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
Exercise Stress Test
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 Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be...
Exercise and Muscle Performance
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...