Plasticity in the growth of body segments in relation to height-for-age and maternal education in Guatemala.
Journal
American journal of human biology : the official journal of the Human Biology Council
ISSN: 1520-6300
Titre abrégé: Am J Hum Biol
Pays: United States
ID NLM: 8915029
Informations de publication
Date de publication:
07 2020
07 2020
Historique:
received:
06
03
2019
revised:
03
12
2019
accepted:
04
12
2019
pubmed:
20
12
2019
medline:
29
6
2021
entrez:
20
12
2019
Statut:
ppublish
Résumé
Plasticity in the growth of body segments between populations has been researched in relation to migration, temporal change and high-altitude studies. We study the within population variation in body segments, thus controlling for some of the environmental and genetic differences that could be at play in between populations studies. We test a version of the thrifty phenotype hypothesis, where the growth of head-trunk and hand are prioritized due to their functional significance over height and leg growth. A total of 3913 Guatemalan, rural, semi-urban and urban, Maya and Ladino children 6 to 15 years old were studied. Height, sitting height, leg length, and metacarpal length were studied in relation to three proxies for living conditions: height- and leg length-for-age, and maternal education. Estimation statistics and null hypothesis significance testing were used to analyze the data. Metatarsal length and sitting height values were higher than height and leg length respectively. Relative metacarpal length was conserved across height-for-age groups. Females were less affected than males for metacarpal length and sitting height, but more affected for leg length. Our results agree with the thrifty phenotype hypothesis, where metacarpal and sitting height growth would be prioritized over height and leg length due to greater functional significance.
Identifiants
pubmed: 31854051
doi: 10.1002/ajhb.23376
pmc: PMC7507214
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e23376Informations de copyright
© 2019 The Authors. American Journal of Human Biology published by Wiley Periodicals, Inc.
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