Evidence map›Paper›PMID 25675516›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Lack of exercise leads to significant and reversible loss of scale invariance in both aged and young mice.

Changgui Gu, Claudia P Coomans, Kun Hu, Frank A J L Scheer, H Eugene Stanley, Johanna H Meijer

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Emergent critical oscillations in motor cortex of Parkinson's patients.bioRxiv : the preprint server for biology · 2026
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  10. From clock to functional pacemaker.The European journal of neuroscience · 2020
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  14. Fractal regulation and incident Alzheimer's disease in elderly individuals.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2018
    Article
  15. Article
  16. Effects of Aging on Cortical Neural Dynamics and Local Sleep Homeostasis in Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  17. Article
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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 4 institutions in 2 countries.

Changgui GuDepartment of Molecular Cell Biology, Laboratory for Neurophysiology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; gu_changgui@163.com hes@bu.edu J.H.Meijer@lumc.nl.
Claudia P CoomansDepartment of Molecular Cell Biology, Laboratory for Neurophysiology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
Kun HuDivision of Sleep and Circadian Disorders, Brigham and Women's Hospital, and Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115; and.
Frank A J L ScheerDivision of Sleep and Circadian Disorders, Brigham and Women's Hospital, and Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115; and.
H Eugene StanleyDepartments of Physics, Chemistry, Biomedical Engineering, and Physiology, Boston University, Boston, MA 02215 gu_changgui@163.com hes@bu.edu J.H.Meijer@lumc.nl.
Johanna H MeijerDepartment of Molecular Cell Biology, Laboratory for Neurophysiology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands; gu_changgui@163.com hes@bu.edu J.H.Meijer@lumc.nl.
Leiden University Medical Center · NLBrigham and Women's Hospital · USDivision of Chemistry · USHarvard University · US

Funding

TRANSPLANTATION ANALYSIS OF CIRCADIAN RHYTHMS AND AGINGP01AG009975 · NIA · BRIGHAM AND WOMEN'S HOSPITAL · PI QUAN, STUART F. · 1991 to 2018
$23.1M
Spatial Analysis of Cerebral Cortex in Aging MonkeysR01AG021133 · NIA · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI CRUZ CRUZ, LUIS R, ROSENE, DOUGLAS L · 2005 to 2012
$4.0M
Development of countermeasures against adverse metabolic effects of shift workR01HL118601 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SCHEER, FRANK A · 2014 to 2017
$2.6M
Mechanisms underlying adverse health consequences of shift workR01HL094806 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI SCHEER, FRANK A · 2009 to 2013
$1.6M
Fractal Regulatory Function of the Circadian SystemR00HL102241 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI HU, KUN · 2012 to 2014
$720k
NHLBI NIH HHS R00 HL102241NHLBI NIH HHS R00-HL102241NHLBI NIH HHS R01 HL094806NHLBI NIH HHS R01 HL118601NHLBI NIH HHS R01HL118601NIA NIH HHS 5R01AG021133NIA NIH HHS P01 AG009975NIA NIH HHS P01AG009975NIA NIH HHS R01 AG021133
6 · The paper itself

Abstract

In healthy humans and other animals, behavioral activity exhibits scale invariance over multiple timescales from minutes to 24 h, whereas in aging or diseased conditions, scale invariance is usually reduced significantly. Accordingly, scale invariance can be a potential marker for health. Given compelling indications that exercise is beneficial for mental and physical health, we tested to what extent a lack of exercise affects scale invariance in young and aged animals. We studied six or more mice in each of four age groups (0.5, 1, 1.5, and 2 y) and observed an age-related deterioration of scale invariance in activity fluctuations. We found that limiting the amount of exercise, by removing the running wheels, leads to loss of scale-invariant properties in all age groups. Remarkably, in both young and old animals a lack of exercise reduced the scale invariance in activity fluctuations to the same level. We next showed that scale invariance can be restored by returning the running wheels. Exercise during the active period also improved scale invariance during the resting period, suggesting that activity during the active phase may also be beneficial for the resting phase. Finally, our data showed that exercise had a stronger influence on scale invariance than the effect of age. The data suggest that exercise is beneficial as revealed by scale-invariant parameters and that, even in young animals, a lack of exercise leads to strong deterioration in these parameters.

Indexed as

Behavior, AnimalPhysical Conditioning, AnimalAgingAnimalsHumansMaleMiceMice, Inbred C57BLTime Factorsagingbehavioral activitycircadian rhythmsmultiple timescaleswheel running

Identifiers

PMID25675516
PMCPMC4345576
OpenAlexW1983312980

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.