Evidence map›Paper›PMID 38194261›Full record

SynthesisJMIR public health and surveillance2024

Effects of Physical Exercise on Telomere Length in Healthy Adults: Systematic Review, Meta-Analysis, and Meta-Regression.

Juan Luis Sánchez-González, Juan Luis Sánchez-Rodríguez, Sergio Varela-Rodríguez, Rogelio González-Sarmiento, Cristina Rivera-Picón, Raúl Juárez-Vela, Clara Isabel Tejada-Garrido, Javier Martín-Vallejo, Víctor Navarro-López

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in JMIR public health and surveillance, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Review
  5. Article
  6. Article
  7. Exercise attenuates the hallmarks of aging: Novel perspectives.Journal of sport and health science · 2025
    Review
  8. Review
  9. Review
  10. Article
  11. Observational
  12. Article
  13. Article
  14. 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

9 authors.

Juan Luis Sánchez-González *Faculty of Nursing and Physiotherapy, University of Salamanca, Salamanca, Spain.ORCID 0000-0002-4791-6513
Juan Luis Sánchez-Rodríguez *Department of Basic Psychology, Psychobiology and Methodology, Faculty of Psychology, University of Salamanca, Salamanca, Spain.ORCID 0000-0002-9406-0957
Sergio Varela-Rodríguez *Faculty of Nursing and Physiotherapy, University of Salamanca, Salamanca, Spain.ORCID 0000-0001-6269-3883
Rogelio González-Sarmiento *Molecular Medicine Unit, Instituto de Investigación Biomédica de Salamanca, University of Salamanca-Sanidad de Castilla y León - Consejo Superior de Investigaciones Científicas, Salamanca, Spain.ORCID 0000-0002-2726-6795
Cristina Rivera-Picón *Faculty of Health Sciences, Nursing, Pontifical University of Salamanca, Salamanca, Spain.ORCID 0000-0001-7031-2585
Raúl Juárez-Vela *Nursing Department, Faculty of Heatlh Sciences, University of La Rioja, Logroño, Spain.ORCID 0000-0003-3597-2048
Clara Isabel Tejada-Garrido *Nursing Department, Faculty of Heatlh Sciences, University of La Rioja, Logroño, Spain.ORCID 0000-0002-6261-349X
Javier Martín-Vallejo *Departament of Stadístics, Faculty of Medicine, University of Salamanca, Salamanca, Spain.ORCID 0000-0003-3962-7356
Víctor Navarro-López *Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Faculty of Health Sciences, Universidad Rey Juan Carlos, Madrid, Spain.ORCID 0000-0003-1362-6312

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPhysical exercise is one of the main nonpharmacological treatments for most pathologies. In addition, physical exercise is beneficial in the prevention of various diseases. The impact of physical exercise has been widely studied; however, existing meta-analyses have included diverse and heterogeneous samples. Therefore, to our knowledge, this is the first meta-analysis to evaluate the impact of different physical exercise modalities on telomere length in healthy populations.

objectiveIn this review, we aimed to determine the effect of physical exercise on telomere length in a healthy population through a meta-analysis of randomized controlled trials.

methodsA systematic review with meta-analysis and meta-regression of the published literature on the impact of physical exercise on telomere length in a healthy population was performed. PubMed, Cochrane Library, SCOPUS, Web of Science, and Embase databases were searched for eligible studies. Methodological quality was evaluated using the Risk Of Bias In Nonrandomized Studies of Interventions and the risk-of-bias tool for randomized trials. Finally, the certainty of our findings (closeness of the estimated effect to the true effect) was evaluated using Grading of Recommendations, Assessment, Development, and Evaluations (GRADE).

resultsWe included 9 trials that met the inclusion criteria with fair methodological quality. Random-effects model analysis was used to quantify the difference in telomere length between the exercise and sham groups. Meta-analysis showed that exercise did not significantly increase telomere length compared with the control intervention (mean difference=0.0058, 95% CI -0.05 to 0.06; P=.83). Subgroup analysis suggested that high-intensity interventional exercise significantly increased telomere length compared with the control intervention in healthy individuals (mean difference=0.15, 95% CI 0.03-0.26; P=.01). Furthermore, 56% of the studies had a high risk of bias. Certainty was graded from low to very low for most of the outcomes.

conclusionsThe findings of this systematic review and meta-analysis suggest that high-intensity interval training seems to have a positive effect on telomere length compared with other types of exercise such as resistance training or aerobic exercise in a healthy population.

trial registrationPROSPERO CRD42022364518; http://tinyurl.com/4fwb85ff.

Indexed as

ExerciseHealth StatusTelomereTelomere HomeostasisAdultDatabases, FactualHumansagingexercisemeta-analysisoldertelomere length

Identifiers

PMID38194261
PMCPMC10806448

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.