Association of leisure time physical activity and NMR-detected circulating amino acids in peripubertal girls: A 7.5-year longitudinal study
Zhang, X., Wiklund, P., Wu, N., Yang, Y., Zhuang, H., & Cheng, S. (2017). Association of leisure time physical activity and NMR-detected circulating amino acids in peripubertal girls: A 7.5-year longitudinal study. Scientific Reports, 7, Article 14026. https://doi.org/10.1038/s41598-017-14116-2
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Scientific ReportsDate
2017Copyright
© the Authors 2017. This article is licensed under a Creative Commons Attribution 4.0 International License.
This study investigated the longitudinal associations of physical activity and circulating amino
acids concentration in peripubertal girls. Three hundred ninety-six Finnish girls participated in the
longitudinal study from childhood (mean age 11.2 years) to early adulthood (mean age 18.2 years).
Circulating amino acids were assessed by nuclear magnetic resonance spectroscopy. LTPA was
assessed by self-administered questionnaire. We found that isoleucine, leucine and tyrosine levels
were signifcantly higher in individuals with lower LTPA than their peers at age 11 (p<0.05 for all),
independent of BMI. In addition, isoleucine and leucine levels increased signifcantly (~15%) from
childhood to early adulthood among the individuals with consistently low LTPA (p<0.05 for both),
while among the individuals with consistently high LTPA the level of these amino acids remained
virtually unchanged. In conclusion, high level of physical activity is associated lower serum isoleucine
and leucine in peripubertal girls, independent of BMI, which may serve as a mechanistic link between
high level of physical activity in childhood and its health benefts later in life. Further studies in
peripubertal boys are needed to assess whether associations between physical activity and circulating
amino acids in children adolescents are sex-specific.
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Except where otherwise noted, this item's license is described as © the Authors 2017. This article is licensed under a Creative Commons Attribution 4.0 International License.
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