Physical exercise is associated with better sleep quality in university students, mediated by reduced mobile phone addiction and rumination
A cross-sectional study of 1,300 university students found that physical exercise negatively predicted PSQI scores (β = -0.022, p < 0.01), indicating better sleep quality. This association was mediated by a chain pathway through reduced mobile phone addiction and rumination.
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Physical exercise is associated with better sleep quality in university students, mediated by reduced mobile phone addiction and rumination The current body of evidence comprises 1 study. EvidenceHub rates the overall confidence at 38/100 (low).
The Claim
Physical exercise is associated with better sleep quality in university students, mediated by reduced mobile phone addiction and rumination
This conclusion is most relevant to: University students from seven universities (n=1,300).
What the Research Shows
The conclusion draws on 1 linked study. Highlights from the cited literature:
- ▸How Physical Activity is Associated With Sleep Quality Through Mobile Phone Addiction and Rumination in University Students. (Journal of visualized experiments : JoVE, 2026) —
How It Works
The proposed biological pathway:
- ▸Physical exercise reduces mobile phone addiction
- ▸Lower mobile phone addiction reduces rumination
- ▸Lower rumination improves sleep quality (lower PSQI scores)
- ▸Result: Chain mediation model linking physical exercise to better sleep quality
Who Might Benefit
Evidence fit by population:
- ▸University students from seven universities (n=1,300)
Recommended Dose
N/A
Limitations & Caveats
Important context when interpreting this evidence:
- ▸Cross-sectional design prevents causal inference
- ▸Self-reported measures may introduce bias
- ▸Specific exercise dose (type, frequency, intensity) not reported
Frequently Asked Questions
How does physical exercise improve sleep quality in students?▼
The study suggests it works by reducing mobile phone addiction and rumination, which are linked to poor sleep.
What was the sample size and population?▼
1,300 college students from seven universities were surveyed.
Is this a causal relationship?▼
No, the cross-sectional design shows associations but cannot prove causation.
What scales were used to measure sleep quality?▼
The Pittsburgh Sleep Quality Index (PSQI) was used, where higher scores indicate poorer sleep.
References
- 1.Wang J, Liu YG, Dou GB, Xia QF, Liu Y. “How Physical Activity is Associated With Sleep Quality Through Mobile Phone Addiction and Rumination in University Students..” Journal of visualized experiments : JoVE, 2026. PMID: 42507619 DOI: 10.3791/71352