Key result
An 18-week exercise intervention in female college students with moderate depression significantly decreased power spectrum values in the θ and α bands and increased the duration of microstate C (p<0.05).
Why the study?
To assess the effect of exercise intervention on depression improvement in college students and explore changes in resting-state EEG microstates and power spectrum.
Does exercise intervention improve depression symptoms and alter resting-state EEG microstates and power spectrum in female college students with moderate depression?
Does exercise intervention improve depression symptoms and alter resting-state EEG microstates and power spectrum in female college students with moderate depression?
p-value: p=<0.05
Exercise intervention improves depression symptoms and alters resting-state EEG microstates and power spectrum in female college students with moderate depression.
EEG changes with exercise in depressed students should not alter practice; hypothesis-generating for microstate biomarkers pending randomized trials.
This paper aims to assess the effect of exercise intervention on the improvement of college students with depression and to explore the change characteristics of microstates and the power spectrum in their resting-state electroencephalogram (EEG). Forty female college students with moderate depression were screened according to the Beck Depression Inventory-II (BDI-II) and Depression Self-Rating Scale (SDS) scores, and half of them received an exercise intervention for 18 weeks. The study utilized an EEG to define the resting-state networks, and the scores of all the participants were tracked during the intervention. Compared with those in the depression group, the power spectrum values in the θ and α bands were significantly decreased (p < 0.05), and the duration of microstate C increased significantly (p < 0.05), while the frequency of microstate B decreased significantly (p < 0.05) in the exercise intervention group. The transition probabilities showed that the exercise intervention group had a higher probability from B to D than those in the depression group (p < 0.01). In addition, the power of the δ and α bands were negatively correlated with the occurrence of microstate C (r = −0.842, p < 0.05 and r = −0.885, p < 0.01, respectively), and the power of the β band was positively correlated with the duration of microstate C (r = 0.900, p < 0.01) after exercise intervention. Our results suggest that the decreased duration of microstate C and the increased α power in depressed students are associated with reduced cognitive ability, emotional stability, and brain activity. Depression symptoms were notably improved after exercise intervention, thus providing a more scientific index for the research, rehabilitation mechanisms, and treatment of depression.
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Liang et al. (2021) studied Moderate depression (n=40). Exercise intervention vs. No exercise intervention (depression group) was evaluated on Power spectrum values in the θ and α bands and microstate characteristics (p=<0.05). An 18-week exercise intervention in female college students with moderate depression significantly decreased power spectrum values in the θ and α bands and increased the duration of microstate C (p<0.05).
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