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.





Abbreviations
- AUC:
-
Area-under-the-curve
- CR:
-
Cardiorespiratory
- EPI:
-
Epinephrine
- DCC:
-
Dual-challenge condition
- EAC:
-
Exercise-alone condition
- HR:
-
Heart rate
- HF:
-
Higher-fitness
- LF:
-
Lower-fitness
- NE:
-
Norepinephrine
- SA:
-
Sympathoadrenal axis
References
Acevedo EO, Dzewaltowski DA, Kubitz KA, Kraemer RR (1999) Effects of a proposed challenge on effort sense and cardiorespiratory responses during exercise. Med Sci Sports Exerc 31:1460–1465
Acevedo EO, Webb HE, Weldy ML, Fabianke EC, Orndorff GR, Starks MA (2006) Cardiorespiratory responses of hi fit and low fit subjects to mental challenge during exercise. Int J Sports Med 27:1013–1022
Baden DA, McLean TL, Tucker R, Noakes TD, St Clair Gibson A (2005) Effect of anticipation during unknown or unexpected exercise duration on rating of perceived exertion, affect, and physiological function. Br J Sports Med 39:742–746
Brotherhood JR, Budd GM, Hendrie AL, Jeffery SE, Beasley FA, Costin BP, Zhien W, Baker MM, Cheney NP, Dawson MP (1997) Project Aquarius. 3. Effects of work rate on the productivity, energy expenditure, and physiological responses of men building fireline with a rakehoe in dry eucalypt forest. Int J Wildl Fire 7:87–98
Claytor RP (1991) Stress reactivity: hemodynamic adjustments in trained and untrained humans. Med Sci Sports Exerc 23:873–881
Crews DJ, Landers DM (1987) A meta-analytic review of aerobic fitness and reactivity to psychosocial stressors. Med Sci Sports Exerc 19:S114–S120
Dayas CV, Buller KM, Crane JW, Xu Y, Day TA (2001) Stressor categorization: acute physical and psychological stressors elicit distinctive recruitment patterns in the amygdala and in medullary noradrenergic cell groups. Eur J Neurosci 14:1143–1152
de Geus EJ, van Doornen LJ (1993) The effects of fitness training on the physiological stress response. Work Stress 7:141–159
de Geus EJ, van Doornen LJ, Orlebeke JF (1993) Regular exercise and aerobic fitness in relation to psychological make-up and physiological stress reactivity. Psychosom Med 55:347–363
Delistraty DA, Greene WA, Carlberg KA, Raver KK (1991) Use of graded exercise to evaluate physiological hyperreactivity to mental stress. Med Sci Sports Exerc 23:476–481
Delistraty DA, Greene WA, Carlberg KA, Raver KK (1992) Cardiovascular reactivity in Type A and B males to mental arithmetic and aerobic exercise at an equivalent oxygen uptake. Psychophysiology 29:264–271
Dill DB, Costill DL (1974) Calculation of percentage changes in volumes of blood, plasma, and red cells in dehydration. J Appl Physiol 37:247–248
Hamer M, Steptoe A (2007) Association between physical fitness, parasympathetic control, and proinflammatory responses to mental stress. Psychosom Med 69:660–666
Hatfield BD, Spalding TW, Santa Maria DL, Porges SW, Potts JT, Byrne EA, Brody EB, Mahon AD (1998) Respiratory sinus arrhythmia during exercise in aerobically trained and untrained men. Med Sci Sports Exerc 30:206–214
Howley ET, Bassett DR Jr, Welch HG (1995) Criteria for maximal oxygen uptake: review and commentary. Med Sci Sports Exerc 27(9):1292–1301
Huang CJ, Webb HE, Evans RK, McCleod KA, Tangsilsat SE, Kamimori GH, Acevedo EO (2010a) Psychological stress during exercise: immunoendocrine and oxidative responses. Exp Biol Med (Maywood) 235:1498–1504
Huang CJ, Webb HE, Garten RS, Kamimori GH, Acevedo EO (2010b) Psychological stress during exercise: lymphocyte subset redistribution in firefighters. Physiol Behav 101:320–326
Huang CJ, Webb HE, Garten RS, Kamimori GH, Evans RK, Acevedo EO (2010c) Stress hormones and immunological responses to a dual challenge in professional firefighters. Int J Psychophysiol 75:312–318
Jackson EM, Dishman RK (2006) Cardiorespiratory fitness and laboratory stress: a meta-regression analysis. Psychophysiology 43:57–72
Kaufman MP, Hayes SG (2002) The exercise pressor reflex. Clin Auton Res 12:429–439
Mastorakos G, Pavlatou M, Diamanti-Kandarakis E, Chrousos GP (2005) Exercise and the stress system. Hormones (Athens) 4:73–89
Nicolaides NC, Kyratzi E, Lamprokostopoulou A, Chrousos GP, Charmandari E (2015) Stress, the stress system and the role of glucocorticoids. Neuroimmunomodulation 22:6–19
Pescatello LS (ed) (2013) ACSM’s guidelines for exercise testing and prescription. Wolters Kluwer, Philadelphia
Rimmele U, Zellweger BC, Marti B, Seiler R, Mohiyeddini C, Ehlert U, Heinrichs M (2007) Trained men show lower cortisol, heart rate and psychological responses to psychosocial stress compared with untrained men. Psychoneuroendocrinology 32:627–635
Roth DL, Bachtler SD, Fillingim RB (1990) Acute emotional and cardiovascular effects of stressful mental work during aerobic exercise. Psychophysiology 27:694–701
Rousselle JG, Blascovich J, Kelsey RM (1995) Cardiorespiratory response under combined psychological and exercise stress. Int J Psychophysiol 20:49–58
Schuler JL, O’Brien WH (1997) Cardiovascular recovery from stress and hypertension risk factors: a meta-analytic review. Psychophysiology 34:649–659
Smeets T (2010) Autonomic and hypothalamic-pituitary-adrenal stress resilience: impact of cardiac vagal tone. Biol Psychol 84:290–295
Smith SA, Mitchell JH, Garry MG (2006) The mammalian exercise pressor reflex in health and disease. Exp Physiol 91:89–102
Sothmann MS, Hart BA, Horn TS (1991) Plasma catecholamine response to acute psychological stress in humans: relation to aerobic fitness and exercise training. Med Sci Sports Exerc 23:860–867
Sothmann MS, Buckworth J, Claytor RP, Cox RH, White-Welkley JE, Dishman RK (1996) Exercise training and the cross-stressor adaptation hypothesis. Exerc Sport Sci Rev 24:267–287
Spalding TW, Jeffers LS, Porges SW, Hatfield BD (2000) Vagal and cardiac reactivity to psychological stressors in trained and untrained men. Med Sci Sports Exerc 32:581–591
Szabo A, Péronnet F, Gauvin L, Furedy JJ (1994) Mental challenge elicits “additional” increases in heart rate during low and moderate intensity cycling. Int J Psychophysiol 17:197–204
Webb HE, Weldy ML, Fabianke-Kadue EC, Orndorff GR, Kamimori GH, Acevedo EO (2008) Psychological stress during exercise: cardiorespiratory and hormonal responses. Eur J Appl Physiol 104:973–981
Webb HE, McMinn DR, Garten RS, Beckman JL, Kamimori GH, Acevedo EO (2010) Cardiorespiratory responses of firefighters to a computerized fire strategies and tactics drill during physical activity. Appl Ergon 41:376–381
Webb HE, Fabianke-Kadue EC, Kraemer RR, Kamimori GH, Castracane VD, Acevedo EO (2011a) Stress reactivity to repeated low-level challenges: a pilot study. Appl Psychophysiol Biofeedback 36:243–250
Webb HE, Garten RS, McMinn DR, Beckman JL, Kamimori GH, Acevedo EO (2011b) Stress hormones and vascular function in firefighters during concurrent challenges. Biol Psychol 87:152–160
Webb HE, Rosalky DS, Tangsilsat SE, McLeod KA, Acevedo EO, Wax B (2013) Aerobic fitness affects cortisol responses to concurrent challenges. Med Sci Sports Exerc 45:379–386
Acknowledgements
The authors wish to thank Supatchara Tangsilat and Kelly McCleod for their assistance in data collection with this project.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
No external funding was received to conduct this study.
Conflict of interest
The authors declare no conflicts of interest.
Material has been reviewed by the Walter Reed Army Institute of Research. There is no objection to its presentation and/or publication. The opinions or assertions contained herein are the private views of the author, and are not to be construed as official, or as reflecting true views of the Department of the Army or the Department of Defense.
Additional information
Communicated by Keith Phillip George.
Rights and permissions
About this article
Cite this article
Webb, H.E., Rosalky, D.A., McAllister, M.J. et al. Aerobic fitness impacts sympathoadrenal axis responses to concurrent challenges. Eur J Appl Physiol 117, 301–313 (2017). https://doi.org/10.1007/s00421-016-3519-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00421-016-3519-3