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Age Trajectories of Physiological Indices: Which Factors Influence Them?

In: Biodemography of Aging

Author

Listed:
  • Anatoliy I. Yashin

    (Duke Population Research Institute & Social Science Research Institute at Duke University, Biodemography of Aging Research Unit, Center for Population Health and Aging)

  • Liubov S. Arbeeva

    (Duke Population Research Institute & Social Science Research Institute at Duke University, Biodemography of Aging Research Unit, Center for Population Health and Aging)

  • Konstantin G. Arbeev

    (Duke Population Research Institute & Social Science Research Institute at Duke University, Biodemography of Aging Research Unit, Center for Population Health and Aging)

  • Igor Akushevich

    (Duke Population Research Institute & Social Science Research Institute at Duke University, Biodemography of Aging Research Unit, Center for Population Health and Aging)

  • Alexander M. Kulminski

    (Duke Population Research Institute & Social Science Research Institute at Duke University, Biodemography of Aging Research Unit, Center for Population Health and Aging)

  • Eric Stallard

    (Duke Population Research Institute & Social Science Research Institute at Duke University, Biodemography of Aging Research Unit, Center for Population Health and Aging)

  • Svetlana V. Ukraintseva

    (Duke Population Research Institute & Social Science Research Institute at Duke University, Biodemography of Aging Research Unit, Center for Population Health and Aging)

Abstract

Longitudinal data on aging, health, and longevity provide researchers with a unique opportunity to observe aging-related changes in biomarkers that describe the functioning of individual organisms during people’s life courses. In this chapter, empirical estimates of the mean values of eight physiological variables are calculated for several groups of individuals using longitudinal data on participants of the original cohort from the Framingham Heart Study. These variables include: diastolic blood pressure, systolic blood pressure, pulse pressure, body mass index, serum cholesterol, blood glucose, hematocrit, and ventricular rate. The results of analyses of age trajectories of these variables show that they depend on various genetic and non-genetic factors affecting human lifespan. The patterns of physiological aging changes differ between the shorter-lived and the longest-lived individuals, as well as between individuals with shorter and longer healthspans. A particularly notable finding was that health and extreme longevity were associated with different patterns of aging changes in physiological variables indicating that longevity can be linked to a postponement of the aging changes in physiological variables rather than to their “healthier” values. To further uncover mechanisms responsible for the dynamic behavior of physiological variables from analysis of longitudinal human data, one needs appropriate statistical models that link aging-related changes in these variables with health and survival outcomes.

Suggested Citation

  • Anatoliy I. Yashin & Liubov S. Arbeeva & Konstantin G. Arbeev & Igor Akushevich & Alexander M. Kulminski & Eric Stallard & Svetlana V. Ukraintseva, 2016. "Age Trajectories of Physiological Indices: Which Factors Influence Them?," The Springer Series on Demographic Methods and Population Analysis, in: Biodemography of Aging, chapter 0, pages 21-45, Springer.
    • Handle: RePEc:spr:ssdmcp:978-94-017-7587-8_2
    DOI: 10.1007/978-94-017-7587-8_2
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