Cited by 50Treatment of Major DepressionPhysical Activity and HealthStress Responses and Cortisol

High-Intensity Aerobic Exercise Acutely Increases Brain-derived Neurotrophic Factor

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ROSS, RYAN E., SALADIN, MICHAEL E., GEORGE, MARK S., GREGORY, CHRIS M.·2019·Medicine & Science in Sports & Exercise

Abstract

Aerobic exercise (AEx) exerts antidepressant effects, although the neurobiological mechanisms underlying such effects are not well understood. Reduced brain-derived neurotrophic factor (BDNF) and elevated cortisol have been implicated in the pathophysiology of depression and appear to normalize with antidepressant treatment. Thus, BDNF and cortisol may serve as biological targets for developing AEx as an antidepressant treatment. Purpose: This study examined the effects of AEx, of different intensities, on serum BDNF and cortisol in individuals with and without depression. Methods: Thirteen participants with depression (10 females; age = 27.2 ± 6.9 yr; Montgomery–Äsberg Depression Rating Scale = 21.7 ± 4.7) and 13 control participants (10 females; age 27.2 ± 7.2 yr; Montgomery–Äsberg Depression Rating Scale = 0.5 ± 0.9) participated. Experimental visits consisted of 15 min of low-intensity cycling (LO) at 35% heart rate reserve, high-intensity cycling (HI) at 70% heart rate reserve, or sitting (CON). During each visit, blood samples were obtained at baseline, immediately postexercise (IP), and then every 15 min postexercise for 1 h (15P, 30P, 45P, and 60P). Group, condition, and time differences in BDNF and cortisol were assessed. Results: There were no group differences in cortisol and BDNF. Secondary analysis revealed that BDNF increased in an intensity-dependent nature at IP, and cortisol was significantly elevated at 15P after HI. Changes in BDNF and cortisol showed significant linear relationships with changes in HR. Conclusion: HI AEx can elicit acute, transient increases in BDNF and cortisol in young, healthy, and physically active, nondepressed and mild to moderately depressed individuals. This work suggests that AEx has potential to significantly affect the central nervous system function, and the magnitude of such effect may be directly driven by exercise intensity.

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  • One study found that compared to high-intensity interval training, moderate-intensity continuous aerobic exercise reduced the levels of inflammatory factors such as TNF-α, IL-6, and IL-1β.

    “However, one study found that compared to high-intensity interval training, moderate-intensity continuous aerobic exercise reduced the levels of inflammatory factors such as TNF-α, IL-6, and IL-1β [112].”

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  1. [37]Meyer JD, Koltyn KF, Stegner AJ, Kim JS, Cook DB. Relationships between serum BDNF and the antidepressant effect of acute exercise in depressed women. Psychoneuroendocrinology. 2016 9 28; 74: 286– 94. 27697714

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Authors
ROSS, R. E., SALADIN, M. E., GEORGE, M. S., & GREGORY, C. M.
Affiliations
Medical University of South Carolina (US)
Venue
Medicine & Science in Sports & Exercise
Published
2019-03-04
Volume
51
Issue
8
Pages
1698-1709
ISSN
  • 0195-9131 (ISSN-L)
  • 1530-0315
OpenAlex
W2922085322
Cited by
50
References
58
Citations by year
2026: 4 · 2025: 16 · 2024: 8 · 2023: 2 · 2022: 13 · 2021: 1 · 2020: 4 · 2019: 2
FWCI
3.10
Type
journal article
Language
en
Open access
Locations
  • Medicine & Science in Sports & Exercise (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR001450)
  • National Institute of General Medical Sciences (P20GM109040)
  • National Center for Advancing Translational Sciences
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD095137)
Topics
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
aerobic exercise, brain-derived neurotrophic factor, cortisol, exercise intensity, depression, acute exercise effects, heart rate, cycling, antidepressant effects of exercise, serum biomarkers
MeSH terms
Adult, Depression, Exercise Therapy, Physical Exertion, Female, Heart Rate, Humans, Hydrocortisone, Male, Neuronal Plasticity, Perception, Time Factors, Biomarkers, Exercise, Brain-Derived Neurotrophic Factor, Young Adult

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