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Related Experiment Video

Updated: Jan 20, 2026

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
07:40

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Published on: October 10, 2019

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Can EVH Results Predict Post-Exercise Changes in FEV1 Following Interval and Continuous Exercise?

Carley O'Neill1, Joshua Good2, Shilpa Dogra2

  • 1University of Ontario Institute of Technology, 2000 Simcoe St N, Oshawa, ON, L1H 7K4, Canada. carley.oneill@ontariotechu.net.

Lung
|September 6, 2019
PubMed
Summary

The eucapnic voluntary hyperpnea (EVH) test predicts lung function decline after exercise in adults with exercise-induced bronchoconstriction (EIBC). A 1% EVH FEV1 drop correlated with post-exercise FEV1 declines, especially after high-intensity interval exercise.

Keywords:
AsthmaContinuous exerciseEucapnic voluntary hyperpnea challenge

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Area of Science:

  • Respiratory Medicine
  • Sports Physiology
  • Pulmonary Function Testing

Background:

  • Exercise-induced bronchoconstriction (EIBC) affects many recreationally active adults.
  • The eucapnic voluntary hyperpnea (EVH) challenge is a standard method for diagnosing EIBC by measuring changes in forced expiratory volume in 1 second (FEV1).
  • The predictive value of the FEV1 decline following an EVH challenge for post-exercise FEV1 responses is not well understood.

Purpose of the Study:

  • To investigate the relationship between FEV1 decline after an EVH challenge and FEV1 decline following different exercise modalities in individuals with EIBC.
  • To determine if the EVH test can predict the severity of bronchoconstriction induced by various exercise protocols.

Main Methods:

  • Participants with confirmed EIBC underwent an EVH challenge.
  • Following the EVH challenge, participants completed three separate exercise sessions: continuous exercise (CONT), high-intensity interval exercise (HI), and sprint interval exercise (SPRT).
  • Forced expiratory volume in 1 second (FEV1) was measured before and after each exercise session, as well as after the EVH challenge.

Main Results:

  • A 1% decline in FEV1 post-EVH was associated with a 0.44% decline post-CONT, 0.85% decline post-HI, and 0.56% decline post-SPRT.
  • The FEV1 decline after the EVH challenge showed a significant association with the FEV1 decline observed after all exercise conditions.
  • The strongest association between EVH-induced FEV1 decline and exercise-induced FEV1 decline was observed following the high-intensity interval exercise (HI) protocol.

Conclusions:

  • The FEV1 decline following an EVH challenge is a significant predictor of post-exercise FEV1 decline in adults with EIBC.
  • The EVH challenge may serve as a useful tool for anticipating the impact of different exercise intensities on lung function in this population.
  • These findings have potential implications for tailoring exercise prescriptions and enhancing asthma education for recreationally active individuals diagnosed with EIBC.