Cognitive behavioral therapy reduces sedentary time and increases sleep duration in adults with major depressive disorder
In a secondary analysis of the CBT+ trial, adults with major depressive disorder who underwent 8 weeks of cognitive behavioral therapy (CBT) showed a significant average within-person decrease of 47.2 minutes/day of sedentary time (95% CI: -82.0 to -14.4; p = .007) and a significant increase of 36.5 minutes/day in sleep duration (time in bed; 95% CI: 4.2 to 68.8; p = .028). Total physical activity increased by a non-significant 12.3 minutes/day (95% CI: -34.5 to 59.1; p = .589).
This article is automatically generated from the structured evidence profile behind the claim above. Scores reflect the quality and quantity of available research, not clinical advice.
Cognitive behavioral therapy reduces sedentary time and increases sleep duration in adults with major depressive disorder The current body of evidence comprises 1 study, including 1 randomized controlled trial. EvidenceHub rates the overall confidence at 42/100 (low).
The Claim
Cognitive behavioral therapy reduces sedentary time and increases sleep duration in adults with major depressive disorder
This conclusion is most relevant to: Adults with major depressive disorder (MDD) (n=25 total, 13 in ActiveCBT, 12 in CalmCBT).
What the Research Shows
The conclusion draws on 1 linked study. Highlights from the cited literature:
- ▸Does cognitive behavioral therapy change the daily activity patterns of adults with depression? A secondary analysis of the CBT+ trial. (Cognitive behaviour therapy, 2026) —
How It Works
The proposed biological pathway:
- ▸CBT may improve mood and reduce depressive symptoms
- ▸Improved mood may increase motivation for physical activity
- ▸Increased activity and reduced sedentary behavior may improve sleep regulation
- ▸Result: Reduced sedentary time and increased time in bed
Who Might Benefit
Evidence fit by population:
- ▸Adults with major depressive disorder (MDD) (n=25 total, 13 in ActiveCBT, 12 in CalmCBT)
Recommended Dose
N/A
Limitations & Caveats
Important context when interpreting this evidence:
- ▸Small sample size (n=25) limits generalizability
- ▸Secondary analysis of a trial not designed to assess activity changes
- ▸No control group without CBT, so changes cannot be attributed solely to CBT
- ▸No follow-up to assess sustainability of changes
Frequently Asked Questions
Does CBT reduce sedentary time in depressed adults?▼
Yes, the study found a significant average decrease of 47.2 minutes/day of sedentary time after 8 weeks of CBT.
Does CBT increase sleep duration in depressed adults?▼
Yes, sleep duration (time in bed) increased significantly by 36.5 minutes/day on average.
What was the difference between ActiveCBT and CalmCBT?▼
ActiveCBT included 30 minutes of moderate-intensity exercise before each CBT session, while CalmCBT included 30 minutes of quiet rest. No significant between-group differences were found.
Are the activity changes from CBT sustainable?▼
The study did not include follow-up beyond the intervention period, so sustainability is unknown.
References
- 1.Connolly ML, Sun S, Kelly SJE, Lansing JE, Murray TA, Thomas EBK, Wade NG, Meyer JD. “Does cognitive behavioral therapy change the daily activity patterns of adults with depression? A secondary analysis of the CBT+ trial..” Cognitive behaviour therapy, 2026. PMID: 42611033 DOI: 10.1080/16506073.2026.2720134