Evidence map›Paper›PMID 37996285›Full record

ArticleSleep health2024

Effects of a 1-hour per night week-long sleep extension in college students on cardiometabolic parameters, hydration status, and physical activity: A pilot study.

Gina Marie Mathew, Nicole G Nahmod, Lindsay Master, David A Reichenberger, Asher Y Rosinger, Anne-Marie Chang

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Sleep health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Sleep habits in the pathogenesis and management of diabesity.Journal of diabetes investigation · 2025
    Review
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Gina Marie MathewDepartment of Biobehavioral Health, College of Health and Human Development, Pennsylvania State University, University Park, Pennsylvania, USA. Electronic address: gina.mathew@stonybrookmedicine.edu.
Nicole G NahmodDepartment of Biobehavioral Health, College of Health and Human Development, Pennsylvania State University, University Park, Pennsylvania, USA.
Lindsay MasterDepartment of Biobehavioral Health, College of Health and Human Development, Pennsylvania State University, University Park, Pennsylvania, USA.
David A ReichenbergerDepartment of Biobehavioral Health, College of Health and Human Development, Pennsylvania State University, University Park, Pennsylvania, USA.
Asher Y RosingerDepartment of Biobehavioral Health, College of Health and Human Development, Pennsylvania State University, University Park, Pennsylvania, USA; Department of Anthropology, College of Liberal Arts, Pennsylvania State University, University Park, Pennsylvania, USA.
Anne-Marie ChangDepartment of Biobehavioral Health, College of Health and Human Development, Pennsylvania State University, University Park, Pennsylvania, USA.
Pennsylvania State University · US

Funding

Penn State Clinical and Translational Science InstituteUL1TR002014 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI KRASCHNEWSKI, JENNIFER L. · 2016 to 2025
$33.7M
NCATS NIH HHS UL1 TR002014
6 · The paper itself

Abstract

objectivesShort sleep duration is associated with poor physical health in college students. Few studies examine the effects of sleep extension on physical health in this population, who are susceptible to sleep loss. We examined health effects of a 1-week, 1-hour nightly sleep extension in college students.

methodsTwelve healthy undergraduate college students (83% female; age 20.2 ± 1.5years) completed a study consisting of sleeping typically for 1week ("Habitual"), then extending sleep by ≥1 hour/night during the second week ("Extension"). Sleep and physical activity actigraphy were collected throughout. Following each week, participants completed cardiometabolic assessments including a meal response and provided a urine sample for markers of hydration.

resultsIn Extension compared to Habitual, average sleep duration increased (mean change±SEM, +42.6 ± 15.1 minutes; p = .005), while subjective sleepiness (-1.8 ± 0.8 units; p = .040), systolic blood pressure (-6.6 ± 2.8 mmHg; p = .037), postprandial glucose area under the curve (-26.5 ± 10.2 mg/dL × h; p = .025) and time to baseline (-83.0 ± 46.4 minutes; p = .031) after the meal response, sedentary time (-44.3 ± 15.7 minutes; p = .018), and percentage of wake in moderate-to-vigorous activity (-0.89% ± 0.35%; p = .030) decreased. Participants who increased average sleep duration by ≥20 minutes (n = 9) were better hydrated according to urine osmolality (-187.0 ± 68.4 mOsm/kg; p = .026) and specific gravity (-0.01 ± 0.002 g/mL; p = .012) and had reduced odds of dehydration according to urine osmolality (≥800 mOsm/kg; -67%; OR=0.03; p = .035).

conclusionsThis pilot study's findings suggest that sleep extension may improve cardiometabolic functioning and hydration, and alter sedentary behavior and physical activity, in college students. Sleep extension may be employed to improve multiple aspects of health in this sleep-deprived population.

Indexed as

Cardiovascular DiseasesSleepAdolescentAdultExerciseFemaleHumansMalePilot ProjectsStudentsYoung AdultCardiometabolic healthCollege studentsHydrationPhysical activitySleep extension

Identifiers

PMID37996285
PMCPMC13418976
OpenAlexW4388892099

What Socratic holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.