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  • Author: Enrique Díaz x
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Carlos A. Muniesa, Zoraida Verde, Germán Diaz-Ureña, Catalina Santiago, Fernando Gutiérrez, Enrique Díaz, Félix Gómez-Gallego, Helios Pareja-Galeano, Luisa Soares-Miranda and Alejandro Lucia

Growing evidence suggests that regular moderate-intensity physical activity is associated with an attenuation of leukocyte telomere length (LTL) shortening. However, more controversy exists regarding higher exercise loads such as those imposed by elite-sport participation.


The authors investigated LTL differences between young elite athletes (n = 61, 54% men, age [mean ± SD] 27.2 ± 4.9 y) and healthy nonsmoker, physically inactive controls (n = 64, 52% men, 28.9 ± 6.3 y) using analysis of variance (ANOVA).


Elite athletes had, on average, higher LTL than control subjects, 0.89 ± 0.26 vs 0.78 ± 0.31, P = .013 for the group effect, with no significant sex (P = .995) or age effect (P = .114).


The results suggest that young elite athletes have longer telomeres than their inactive peers. Further research might assess the LTL of elite athletes of varying ages compared with both age-matched active and inactive individuals.

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Olga L. Sarmiento, Thomas L. Schmid, Diana C. Parra, Adriana Díaz-del-Castillo, Luis Fernando Gómez, Michael Pratt, Enrique Jacoby, José D. Pinzón and John Duperly


Studies assessing the association between health-related quality of life (HR-QOL) with physical activity (PA) and built environment (BE) characteristics are limited.


A cross-sectional study was conducted among 1,334 adults from Bogotá, to assess the associations between HR-QOL with PA and BE characteristics. HR-QOL was measured using the World Health Organization and the Centers for Disease Control and Prevention instruments. PA was measured using the International PA Questionnaire. BE characteristics included the dimensions of density, diversity, design, and access to mass-transit. Analysis included multilevel modeling.


Adults who reported meeting PA recommendations and participating in the Ciclovía were more likely to have a high mean score of HR-QOL and were more likely to perceive their health status as good/excellent. Adults who reported biking for transportation were more likely to have a high mean score of HR-QOL. Regarding BE characteristics, land-use heterogeneity was associated with HR-QOL, perceived good health status and being positive about the future. Park density was associated with HR-QOL, perceived health status good/excellent and being positive about the future. Mass-transit stations availability was negatively associated with HR-QOL.


This study provides preliminary evidence that HR-QOL is associated with PA and BE characteristics among adults in an urban setting of the developing world.