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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

Exercise reduces depression and inflammation but intensity matters.

Abstract Source:

Biol Psychol. 2018 Mar ;133:79-84. Epub 2018 Feb 3. PMID: 29408464

Abstract Author(s):

Emily M Paolucci, Dessi Loukov, Dawn M E Bowdish, Jennifer J Heisz

Article Affiliation:

Emily M Paolucci

Abstract:

BACKGROUND: Exercise may help to mitigate symptoms of depression by reducing inflammation; however, little is known about the influence of exercise intensity on depressed mood.

METHODS: In the present study, sixty-one university students were assigned to six weeks of high-intensity interval training (HIT), moderate continuous training (MCT), or no exercise (CON) during their academic term. We measured changes in depression, anxiety and perceived stress along with pro-inflammatory cytokines tumor necrosis factor alpha (TNF-α), interleukin-6 (IL-6), interleukin-1 beta (IL-1β), and C-reactive protein (CRP).

RESULTS: Depression increased for CON, demonstrating how quickly mental health can decline for students during their academic term. In contrast, MCT decreased depression and pro-inflammatory cytokine TNF-α levels. Although HIT decreased depressive symptoms, it also increased perceived stress, TNF-α and IL-6 relative to MCT. This may be due to the higher level of physical stress evoked by the more strenuous exercise protocol.

CONCLUSIONS: Taken together, the results suggest that moderate-intensity exercise may be an optimal intensity of exercise for the promotion of mental health by decreasing TNF-α. This is critical for informing the use of exercise as medicine for mental health.

Study Type : Human Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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