Document Type
Article
Original Publication Date
2017
Journal/Book/Conference Title
European Journal of Applied Physiology
Volume
117
Issue
2
First Page
301
Last Page
313
DOI of Original Publication
10.1007/s00421-016-3519-3
Date of Submission
June 2017
Abstract
The combination of mental and physical challenges can elicit exacerbated cardiorespiratory (CR) and catecholamine responses above that of a single challenge alone.
Purpose
This study examined the effects of a combination of acute mental challenges and physical stress on cardiorespiratory and catecholamine responses.
Method
Eight below-average fitness (LF VO2max = 36.58 +/- 3.36 ml(-1) kg(-1) min(-1)) and eight above-average fitness (HF VO2max = 51.18 +/- 2.09 ml(-1) kg(-1) min(-1)) participants completed an exercise-alone condition (EAC) session consisting of moderate-intensity cycling at 60% VO2max for 37 min, and a dual-challenge condition (DCC) that included concurrent participation in mental challenges while cycling.
Result
The DCC resulted in increases in perceived workload, CR, epinephrine, and norepinephrine responses overall. HF participants had greater absolute CR and catecholamine responses compared to LF participants and quicker HR recovery after the dual challenge.
Conclusion
These findings demonstrate that cardiorespiratory fitness does impact the effect of concurrent stressors on CR and catecholamine responses.
Rights
© Springer-Verlag Berlin Heidelberg 2017
Is Part Of
VCU Physiology and Biophysics Publications
Comments
Originally published at http://doi.org/10.1007/s00421-016-3519-3