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Review
. 2024:35:221-239.
doi: 10.1007/978-3-031-45493-6_11.

Physical Exercise as an Intervention for Depression: Evidence for Efficacy and Mu-Opioid Receptors as a Mechanism of Action

Colleen Pettrey  1 , Patrick L Kerr  2 , T O Dickey  3
Affiliations
Review

Physical Exercise as an Intervention for Depression: Evidence for Efficacy and Mu-Opioid Receptors as a Mechanism of Action

Colleen Pettrey et al. Adv Neurobiol. 2024.

Abstract

Physical exercise is often cited as an important part of an intervention for depression, and there is empirical evidence to support this. However, the mechanism of action through which any potential antidepressant effects are produced is not widely understood. Recent evidence points toward the involvement of endogenous opioids, and especially the mu-opioid system, as a partial mediator of these effects. In this chapter, we discuss the current level of empirical support for physical exercise as either an adjunctive or standalone intervention for depression. We then review the extant evidence for involvement of endogenous opioids in the proposed antidepressant effects of exercise, with a focus specifically on evidence for mu-opioid system involvement.

Keywords: Depression treatment; Endogenous opioids; Endorphins; Exercise; Mu-opioids.

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