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ArticlePediatric research2025

Is physical fitness associated with leucocyte telomere length in youth with type 1 diabetes?

Jacinto Muñoz-Pardeza, José Francisco López-Gil, Nidia Huerta-Uribe, Ignacio Hormazábal-Aguayo, Ana Ojeda-Rodríguez, Amelia Marti Del Moral, Mikel Izquierdo, Antonio García-Hermoso

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Article in Pediatric research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
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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

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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

4 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Jacinto Muñoz-PardezaNavarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain.
José Francisco López-GilOne Health Research Group, Universidad de Las Américas, Quito, Ecuador.
Nidia Huerta-UribeNavarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain.
Ignacio Hormazábal-AguayoNavarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain.
Ana Ojeda-RodríguezLipids and Atherosclerosis Unit, Unidad de Gestión Clinica Medicina Interna, Maimonides Institute for Biomedical Research in Córdoba (IMIBIC), Reina Sofia University Hospital, University of Córdoba, Córdoba, Spain.
Amelia Marti Del MoralCIBER of Obesity Physiology and Nutrition (CIBERobn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
Mikel IzquierdoNavarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain.
Antonio García-HermosoNavarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain. antonio.garciah@unavarra.es.ORCID 0000-0002-1397-7182

Funding

CIBER of Obesity Physiology and NutritionInstituto de Salud Carlos III (Spain)
6 · The paper itself

Abstract

backgroundIn type 1 diabetes, telomere length (TL) may predict complications and could be influenced by glycaemic control and physical activity, but its relationship with physical fitness in youths remains unexplored. The aim of the study was to assess the association between physical fitness and TL in youth with type 1 diabetes, both at baseline and one year later.

methodsEighty-three children and adolescents (aged 6-18 years; 44.6% girls) with type 1 diabetes from the Diactive-1 Cohort Study were involved in this study. Physical fitness was assessed using spirometry on a cycloergometer (i.e., peak oxygen consumption), dynamometry, and maximal isometric strength (one-repetition maximum [1RM]), and muscle power. Leucocyte TL was assessed using multiplex monochrome real-time quantitative polymerase chain reaction.

resultsPositive cross-sectional associations were identified between 1RM (unstandardized beta coefficient [B] = 0.042, 95% bias corrected and accelerated [BCa] confidence interval [CI] 0.012-0.069), muscle power (B = 0.056, 95% BCa CI 0.02-0.250), and overall physical fitness (B = 0.043, 95% BCa CI 0.015-0.071) with TL independent of maturation, glycated haemoglobin, and diabetes duration. However, no associations were observed one year later.

conclusionHigher levels of fitness, particularly muscle strength, may play a role in telomere dynamics in youth with type 1 diabetes, suggesting that strength training exercise could be beneficial. IMPACT: This is the first study to examine cross-sectional and longitudinal perspectives on the correlation among muscle strength, peak oxygen consumption [VO

Indexed as

Diabetes Mellitus, Type 1LeukocytesPhysical FitnessTelomereTelomere HomeostasisAdolescentChildCross-Sectional StudiesExerciseFemaleHumansMaleMuscle StrengthOxygen Consumption

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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.