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An Increase in Fat Mass Index Predicts a Deterioration of Running Speed

A low fat mass is associated with a good running performance. This study explores whether modifications in body composition predicted changes in running speed. We included people who underwent several measurements of body composition by bioelectrical impedance analysis between 1999 and 2016, at the...

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Autores principales: Genton, Laurence, Mareschal, Julie, Karsegard, Véronique L., Achamrah, Najate, Delsoglio, Marta, Pichard, Claude, Graf, Christophe, Herrmann, François R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6471649/
https://www.ncbi.nlm.nih.gov/pubmed/30934655
http://dx.doi.org/10.3390/nu11030701
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author Genton, Laurence
Mareschal, Julie
Karsegard, Véronique L.
Achamrah, Najate
Delsoglio, Marta
Pichard, Claude
Graf, Christophe
Herrmann, François R.
author_facet Genton, Laurence
Mareschal, Julie
Karsegard, Véronique L.
Achamrah, Najate
Delsoglio, Marta
Pichard, Claude
Graf, Christophe
Herrmann, François R.
author_sort Genton, Laurence
collection PubMed
description A low fat mass is associated with a good running performance. This study explores whether modifications in body composition predicted changes in running speed. We included people who underwent several measurements of body composition by bioelectrical impedance analysis between 1999 and 2016, at the “Course de l’Escalade”, taking place yearly in Geneva. Body composition was reported as a fat-free mass index (FFMI) and fat mass index (FMI). Running distances (men: 7.2 km; women: 4.8 km) and running times were used to calculate speed in km/h. We performed multivariate linear mixed regression models to determine whether modifications of body mass index, FFMI, FMI or the combination of FFMI and FMI predicted changes in running speed. The study population included 377 women (1419 observations) and 509 men (2161 observations). Changes in running speed were best predicted by the combination of FFMI and FMI. Running speed improved with a reduction of FMI in both sexes (women: ß −0.31; 95% CI −0.35 to −0.27, p < 0.001. men: ß −0.43; 95% CI −0.48 to −0.39, p < 0.001) and a reduction of FFMI in men (ß −0.20; 95% CI −0.26 to −0.15, p < 0.001). Adjusted for body composition, the decline in running performance occurred from 50 years onward, but appeared earlier with a body mass, FFMI or FMI above the median value at baseline. Changes of running speed are determined mostly by changes in FMI. The decline in running performance occurs from 50 years onward but appears earlier in people with a high body mass index, FFMI or FMI at baseline.
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spelling pubmed-64716492019-04-25 An Increase in Fat Mass Index Predicts a Deterioration of Running Speed Genton, Laurence Mareschal, Julie Karsegard, Véronique L. Achamrah, Najate Delsoglio, Marta Pichard, Claude Graf, Christophe Herrmann, François R. Nutrients Article A low fat mass is associated with a good running performance. This study explores whether modifications in body composition predicted changes in running speed. We included people who underwent several measurements of body composition by bioelectrical impedance analysis between 1999 and 2016, at the “Course de l’Escalade”, taking place yearly in Geneva. Body composition was reported as a fat-free mass index (FFMI) and fat mass index (FMI). Running distances (men: 7.2 km; women: 4.8 km) and running times were used to calculate speed in km/h. We performed multivariate linear mixed regression models to determine whether modifications of body mass index, FFMI, FMI or the combination of FFMI and FMI predicted changes in running speed. The study population included 377 women (1419 observations) and 509 men (2161 observations). Changes in running speed were best predicted by the combination of FFMI and FMI. Running speed improved with a reduction of FMI in both sexes (women: ß −0.31; 95% CI −0.35 to −0.27, p < 0.001. men: ß −0.43; 95% CI −0.48 to −0.39, p < 0.001) and a reduction of FFMI in men (ß −0.20; 95% CI −0.26 to −0.15, p < 0.001). Adjusted for body composition, the decline in running performance occurred from 50 years onward, but appeared earlier with a body mass, FFMI or FMI above the median value at baseline. Changes of running speed are determined mostly by changes in FMI. The decline in running performance occurs from 50 years onward but appears earlier in people with a high body mass index, FFMI or FMI at baseline. MDPI 2019-03-25 /pmc/articles/PMC6471649/ /pubmed/30934655 http://dx.doi.org/10.3390/nu11030701 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Genton, Laurence
Mareschal, Julie
Karsegard, Véronique L.
Achamrah, Najate
Delsoglio, Marta
Pichard, Claude
Graf, Christophe
Herrmann, François R.
An Increase in Fat Mass Index Predicts a Deterioration of Running Speed
title An Increase in Fat Mass Index Predicts a Deterioration of Running Speed
title_full An Increase in Fat Mass Index Predicts a Deterioration of Running Speed
title_fullStr An Increase in Fat Mass Index Predicts a Deterioration of Running Speed
title_full_unstemmed An Increase in Fat Mass Index Predicts a Deterioration of Running Speed
title_short An Increase in Fat Mass Index Predicts a Deterioration of Running Speed
title_sort increase in fat mass index predicts a deterioration of running speed
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6471649/
https://www.ncbi.nlm.nih.gov/pubmed/30934655
http://dx.doi.org/10.3390/nu11030701
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