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The relationships of lifetime physical activity and diet with salivary cell telomere length in current ultra-endurance exercisers

The relationships of lifetime physical activity and diet with salivary cell telomere length in... BACKGROUND:Physical activity and a healthy diet may delay the aging process and ultra-endurance exercise is an extreme form of physical activity. Telomeres are protective DNA sequences located at the ends of eukaryotic chromosomes which shorten as we age.OBJECTIVE:The aim of this study was to investigate the relationships of lifetime physical activity and diet with salivary cell telomere length in current ultra-endurance exercisers (n = 49; % female = 37, age range 26–74 years).METHODS:Physical activity and dietary intake were measured using the Lifetime Physical Activity and Diet Questionnaire (LPADQ) and salivary cell telomere length was measured using quantitative polymerase chain reaction.RESULTS:In this group of current ultra-endurance exercisers there was no relationship between lifetime physical activity or diet (according to food category scores) and telomere length. In contrast to the expected age-related decrease in telomere length, there was no relationship between age and telomere length (95% confidence interval [CI]: –38.86, 14.54, p = 0.359) in this group of current ultra-endurance exercisers.CONCLUSIONS:The relationships of lifetime physical activity and diet with telomere length remain uncertain. It is possible that lifetime physical activity (including ultra-endurance exercise) and lifetime diet may independently, or in combination, contribute to a decrease in the rate of age-related telomere shortening in current ultra-endurance exercisers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nutrition and Healthy Aging iospress

The relationships of lifetime physical activity and diet with salivary cell telomere length in current ultra-endurance exercisers

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Publisher
IOS Press
Copyright
Copyright © 2021 © 2021 – The authors. Published by IOS Press
ISSN
2451-9480
eISSN
2451-9502
DOI
10.3233/NHA-200090
Publisher site
See Article on Publisher Site

Abstract

BACKGROUND:Physical activity and a healthy diet may delay the aging process and ultra-endurance exercise is an extreme form of physical activity. Telomeres are protective DNA sequences located at the ends of eukaryotic chromosomes which shorten as we age.OBJECTIVE:The aim of this study was to investigate the relationships of lifetime physical activity and diet with salivary cell telomere length in current ultra-endurance exercisers (n = 49; % female = 37, age range 26–74 years).METHODS:Physical activity and dietary intake were measured using the Lifetime Physical Activity and Diet Questionnaire (LPADQ) and salivary cell telomere length was measured using quantitative polymerase chain reaction.RESULTS:In this group of current ultra-endurance exercisers there was no relationship between lifetime physical activity or diet (according to food category scores) and telomere length. In contrast to the expected age-related decrease in telomere length, there was no relationship between age and telomere length (95% confidence interval [CI]: –38.86, 14.54, p = 0.359) in this group of current ultra-endurance exercisers.CONCLUSIONS:The relationships of lifetime physical activity and diet with telomere length remain uncertain. It is possible that lifetime physical activity (including ultra-endurance exercise) and lifetime diet may independently, or in combination, contribute to a decrease in the rate of age-related telomere shortening in current ultra-endurance exercisers.

Journal

Nutrition and Healthy Agingiospress

Published: Nov 2, 2021

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