Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2014 Sep;114(9):1809-20.
doi: 10.1007/s00421-014-2907-9. Epub 2014 May 31.

Effect of Exercise Intensity on Post-Exercise Oxygen Consumption and Heart Rate Recovery

Affiliations

Effect of Exercise Intensity on Post-Exercise Oxygen Consumption and Heart Rate Recovery

Theresa N Mann et al. Eur J Appl Physiol. .

Abstract

Purpose: There is some evidence that measures of acute post-exercise recovery are sensitive to the homeostatic stress of the preceding exercise and these measurements warrant further investigation as possible markers of training load. The current study investigated which of four different measures of metabolic and autonomic recovery was most sensitive to changes in exercise intensity.

Methods: Thirty-eight moderately trained runners completed 20-min bouts of treadmill exercise at 60, 70 and 80% of maximal oxygen uptake (VO2max) and four different recovery measurements were determined: the magnitude of excess post-exercise oxygen consumption (EPOCMAG), the time constant of the oxygen consumption recovery curve (EPOCτ), heart rate recovery within 1 min (HRR60s) and the time constant of the heart rate recovery curve (HRRτ) .

Results: Despite significant differences in exercise parameters at each exercise intensity, only EPOCMAG showed significantly slower recovery with each increase in exercise intensity at the group level and in the majority of individuals. EPOCτ was significantly slower at 70 and 80% of VO₂max vs. 60% VO₂max and HRRτ was only significantly slower when comparing the 80 vs. 60% VO₂max exercise bouts. In contrast, HRR60s reflected faster recovery at 70 and 80% of VO₂max than at 60% VO₂max.

Conclusion: Of the four recovery measurements investigated, EPOCMAG was the most sensitive to changes in exercise intensity and shows potential to reflect changes in the homeostatic stress of exercise at the group and individual level. Determining EPOCMAG may help to interpret the homeostatic stress of laboratory-based research trials or training sessions.

Similar articles

See all similar articles

Cited by 8 articles

See all "Cited by" articles

References

    1. Eur J Appl Physiol. 2008 Feb;102(3):353-60 - PubMed
    1. J Am Coll Cardiol. 1994 Nov 15;24(6):1529-35 - PubMed
    1. J Physiol. 2009 Apr 15;587(Pt 8):1843-56 - PubMed
    1. Int J Sports Med. 2008 Mar;29(3):238-43 - PubMed
    1. Eur J Appl Physiol Occup Physiol. 1989;58(8):879-83 - PubMed

Publication types

LinkOut - more resources

Feedback