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Updated: Nov 11, 2025

Conducting Maximal and Submaximal Endurance Exercise Testing to Measure Physiological and Biological Responses to Acute Exercise in Humans
Published on: October 17, 2018
Cardiorespiratory responses to acute bouts of high-intensity functional training and traditional exercise in
Matthew F Brisebois1, Kyle D Biggerstaff2, David L Nichols2
1Department of Human Performance and Health, University of South Carolina Upstate, Spartanburg, SC, USA - Brisebom@uscupstate.edu.
Background:
High-intensity functional training is a popular form of exercise, but little is known about how it compares to more traditional exercise patterns.
Methods:
Thirty healthy, physically active adults (15 males, 15 females) performed a high-intensity functional training workout (HIFT) and a traditional workout (TRAD). Cardiorespiratory responses were measured during and for 15 min after each workout.
Results:
Peak heart rate (males: 187±7 vs. 171±10 bpm, P<0.001; females: 191±9 vs. 175±6 bpm, P<0.001), peak VO
Conclusions:
High-intensity functional training may be an effective form of exercise for caloric expenditure and may elicit greater cardiorespiratory stress than traditional exercise.
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