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Novel Biomarkers of Physical Activity Maintenance in Midlife Women: Preliminary Investigation
The precision health initiative is leading the discovery of novel biomarkers as important indicators of biological processes or responses to behavior, such as physical activity. Neural biomarkers identified by magnetic resonance imaging (MRI) hold promise to inform future research, and ultimately, f...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Mary Ann Liebert, Inc.
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5908419/ https://www.ncbi.nlm.nih.gov/pubmed/29682403 http://dx.doi.org/10.1089/biores.2018.0010 |
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author | Bosak, Kelly A. Papa, Vlad B. Brucks, Morgan G. Savage, Cary R. Donnelly, Joseph E. Martin, Laura E. |
author_facet | Bosak, Kelly A. Papa, Vlad B. Brucks, Morgan G. Savage, Cary R. Donnelly, Joseph E. Martin, Laura E. |
author_sort | Bosak, Kelly A. |
collection | PubMed |
description | The precision health initiative is leading the discovery of novel biomarkers as important indicators of biological processes or responses to behavior, such as physical activity. Neural biomarkers identified by magnetic resonance imaging (MRI) hold promise to inform future research, and ultimately, for transfer to the clinical setting to optimize health outcomes. This study investigated resting-state and functional brain biomarkers between midlife women who were maintaining physical activity in accordance with the current national guidelines and previously acquired age-matched sedentary controls. Approval was obtained from the Human Subjects Committee. Participants included nondiabetic, healthy weight to overweight (body mass index 19–29.9 kg/m(2)) women (n = 12) aged 40–64 years. Control group data were used from participants enrolled in our previous functional MRI study and baseline resting-state MRI data from a subset of sedentary (<500 kcal of physical activity per week) midlife women who were enrolled in a 9-month exercise intervention conducted in our imaging center. Differential activation of the inferior frontal gyrus (IFG) and greater connectivity with the dorsolateral prefrontal cortex (dlPFC) was identified between physically active women and sedentary controls. After correcting for multiple comparisons, these differences in biomarkers of physical activity maintenance did not reach statistical significance. Preliminary evidence in this small sample suggests that neural biomarkers of physical activity maintenance involve activations in the brain region associated with areas involved in implementing goal-directed behavior. Specifically, activation of the IFG and connectivity with the dlPFC is identified as a neural biomarker to explain and predict long-term physical activity maintenance for healthy aging. Future studies should evaluate these biomarker links with relevant clinical correlations. |
format | Online Article Text |
id | pubmed-5908419 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Mary Ann Liebert, Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-59084192018-04-20 Novel Biomarkers of Physical Activity Maintenance in Midlife Women: Preliminary Investigation Bosak, Kelly A. Papa, Vlad B. Brucks, Morgan G. Savage, Cary R. Donnelly, Joseph E. Martin, Laura E. Biores Open Access Original Research Article The precision health initiative is leading the discovery of novel biomarkers as important indicators of biological processes or responses to behavior, such as physical activity. Neural biomarkers identified by magnetic resonance imaging (MRI) hold promise to inform future research, and ultimately, for transfer to the clinical setting to optimize health outcomes. This study investigated resting-state and functional brain biomarkers between midlife women who were maintaining physical activity in accordance with the current national guidelines and previously acquired age-matched sedentary controls. Approval was obtained from the Human Subjects Committee. Participants included nondiabetic, healthy weight to overweight (body mass index 19–29.9 kg/m(2)) women (n = 12) aged 40–64 years. Control group data were used from participants enrolled in our previous functional MRI study and baseline resting-state MRI data from a subset of sedentary (<500 kcal of physical activity per week) midlife women who were enrolled in a 9-month exercise intervention conducted in our imaging center. Differential activation of the inferior frontal gyrus (IFG) and greater connectivity with the dorsolateral prefrontal cortex (dlPFC) was identified between physically active women and sedentary controls. After correcting for multiple comparisons, these differences in biomarkers of physical activity maintenance did not reach statistical significance. Preliminary evidence in this small sample suggests that neural biomarkers of physical activity maintenance involve activations in the brain region associated with areas involved in implementing goal-directed behavior. Specifically, activation of the IFG and connectivity with the dlPFC is identified as a neural biomarker to explain and predict long-term physical activity maintenance for healthy aging. Future studies should evaluate these biomarker links with relevant clinical correlations. Mary Ann Liebert, Inc. 2018-04-01 /pmc/articles/PMC5908419/ /pubmed/29682403 http://dx.doi.org/10.1089/biores.2018.0010 Text en © Kelly A. Bosak et al. This Open Access article is distributed under the terms of the Creative Commons License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research Article Bosak, Kelly A. Papa, Vlad B. Brucks, Morgan G. Savage, Cary R. Donnelly, Joseph E. Martin, Laura E. Novel Biomarkers of Physical Activity Maintenance in Midlife Women: Preliminary Investigation |
title | Novel Biomarkers of Physical Activity Maintenance in Midlife Women: Preliminary Investigation |
title_full | Novel Biomarkers of Physical Activity Maintenance in Midlife Women: Preliminary Investigation |
title_fullStr | Novel Biomarkers of Physical Activity Maintenance in Midlife Women: Preliminary Investigation |
title_full_unstemmed | Novel Biomarkers of Physical Activity Maintenance in Midlife Women: Preliminary Investigation |
title_short | Novel Biomarkers of Physical Activity Maintenance in Midlife Women: Preliminary Investigation |
title_sort | novel biomarkers of physical activity maintenance in midlife women: preliminary investigation |
topic | Original Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5908419/ https://www.ncbi.nlm.nih.gov/pubmed/29682403 http://dx.doi.org/10.1089/biores.2018.0010 |
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