Søgeresultater - Vadim Zipunnikov

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  1. 1
    Population Value Decomposition, a Framework for the Analysis of Image Populations

    Population Value Decomposition, a Framework for the Analysis of Image Populations af Ciprian M. Crainiceanu, Brian Caffo, Sheng Luo, Vadim Zipunnikov, Naresh M. Punjabi

    Udgivet 2011
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  2. 2
    Rising Energetic Cost of Walking Predicts Gait Speed Decline With Aging

    Rising Energetic Cost of Walking Predicts Gait Speed Decline With Aging af Jennifer A. Schrack, Vadim Zipunnikov, Eleanor M. Simonsick, Stephanie A. Studenski, Luigi Ferrucci

    Udgivet 2016
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  3. 3
    Epidemiology of objectively measured bedtime and chronotype in US adolescents and adults: NHANES 2003–2006

    Epidemiology of objectively measured bedtime and chronotype in US adolescents and adults: NHANES 2003–2006 af Jacek Urbanek, Adam P. Spira, Junrui Di, Andrew Leroux, Ciprian Crainiceanu, Vadim Zipunnikov

    Udgivet 2017
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  4. 4
    Multilevel Functional Principal Component Analysis for High-Dimensional Data

    Multilevel Functional Principal Component Analysis for High-Dimensional Data af Vadim Zipunnikov, Brian Caffo, David M. Yousem, Christos Davatzikos, Brian S. Schwartz, Ciprian M. Crainiceanu

    Udgivet 2011
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  5. 5
    Quantifying the lifetime circadian rhythm of physical activity: a covariate-dependent functional approach

    Quantifying the lifetime circadian rhythm of physical activity: a covariate-dependent functional approach af Luo Xiao, Lei Huang, Jennifer A. Schrack, Luigi Ferrucci, Vadim Zipunnikov, Ciprian M. Crainiceanu

    Udgivet 2014
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  6. 6
    Validation of Gait Characteristics Extracted From Raw Accelerometry During Walking Against Measures of Physical Function, Mobility, Fatigability, and Fitness

    Validation of Gait Characteristics Extracted From Raw Accelerometry During Walking Against Measures of Physical Function, Mobility, Fatigability, and Fitness af Jacek Urbanek, Vadim Zipunnikov, Tamara Harris, Ciprian M. Crainiceanu, Jaroslaw Harezlak, Nancy W. Glynn

    Udgivet 2017
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  7. 7
    The Predictive Performance of Objective Measures of Physical Activity Derived From Accelerometry Data for 5-Year All-Cause Mortality in Older Adults: National Health and Nutritional Examination Survey 2003–2006

    The Predictive Performance of Objective Measures of Physical Activity Derived From Accelerometry Data for 5-Year All-Cause Mortality in Older Adults: National Health and Nutritiona... af Ekaterina Smirnova, Andrew Leroux, Quy Cao, Lucia Tabacu, Vadim Zipunnikov, Ciprian Crainiceanu, Jacek Urbanek

    Udgivet 2019
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  8. 8
    Estimating Energy Expenditure from Heart Rate in Older Adults: A Case for Calibration

    Estimating Energy Expenditure from Heart Rate in Older Adults: A Case for Calibration af Jennifer A. Schrack, Vadim Zipunnikov, Jeff Goldsmith, Karen Bandeen‐Roche, Ciprian M. Crainiceanu, Luigi Ferrucci

    Udgivet 2014
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  9. 9
    Re-evaluating the effect of age on physical activity over the lifespan

    Re-evaluating the effect of age on physical activity over the lifespan af Vijay R. Varma, Debangan Dey, Andrew Leroux, Junrui Di, Jacek Urbanek, Luo Xiao, Vadim Zipunnikov

    Udgivet 2017
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  10. 10
    Association between Objectively Measured Physical Activity and Mortality in NHANES

    Association between Objectively Measured Physical Activity and Mortality in NHANES af Ezra Fishman, Jeremy A. Steeves, Vadim Zipunnikov, Annemarie Koster, David Berrigan, Tamara Harris, Rachel A. Murphy

    Udgivet 2016
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  11. 11
    Patterns of sedentary and active time accumulation are associated with mortality in US adults: The NHANES study

    Patterns of sedentary and active time accumulation are associated with mortality in US adults: The NHANES study af Junrui Di, Andrew Leroux, Jacek Urbanek, Ravi Varadhan, Adam P. Spira, Jennifer A. Schrack, Vadim Zipunnikov

    Udgivet 2017
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  12. 12
    Mood reactivity and affective dynamics in mood and anxiety disorders.

    Mood reactivity and affective dynamics in mood and anxiety disorders. af Femke Lamers, Joël Swendsen, Lihong Cui, Mathilde M. Husky, Jordan Johns, Vadim Zipunnikov, Kathleen R. Merikangas

    Udgivet 2018
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  13. 13
    Assessing the "Physical Cliff": Detailed Quantification of Age-Related Differences in Daily Patterns of Physical Activity

    Assessing the "Physical Cliff": Detailed Quantification of Age-Related Differences in Daily Patterns of Physical Activity af Jennifer A. Schrack, Vadim Zipunnikov, Jeff Goldsmith, Jiawei Bai, Eleanor M. Simonsick, Ciprian M. Crainiceanu, Luigi Ferrucci

    Udgivet 2013
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  14. 14
    Perceived Fatigability and Objective Physical Activity in Mid- to Late-Life

    Perceived Fatigability and Objective Physical Activity in Mid- to Late-Life af Amal A. Wanigatunga, Eleanor M. Simonsick, Vadim Zipunnikov, Adam P. Spira, Stephanie A. Studenski, Luigi Ferrucci, Jennifer A. Schrack

    Udgivet 2017
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  15. 15
    Fatigability and endurance performance in cancer survivors: Analyses from the Baltimore Longitudinal Study of Aging

    Fatigability and endurance performance in cancer survivors: Analyses from the Baltimore Longitudinal Study of Aging af Gillian Gresham, Sydney M. Dy, Vadim Zipunnikov, Ilene Browner, Stephanie A. Studenski, Eleanor M. Simonsick, Luigi Ferrucci, Jennifer A. Schrack

    Udgivet 2018
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  16. 16
    Accelerometry Data in Health Research: Challenges and Opportunities

    Accelerometry Data in Health Research: Challenges and Opportunities af Marta Karas, Jiawei Bai, Marcin Strączkiewicz, Jaroslaw Harezlak, Nancy W. Glynn, Tamara Harris, Vadim Zipunnikov, Ciprian M. Crainiceanu, Jacek Urbanek

    Udgivet 2019
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  17. 17
    Association of Total Daily Physical Activity and Fragmented Physical Activity With Mortality in Older Adults

    Association of Total Daily Physical Activity and Fragmented Physical Activity With Mortality in Older Adults af Amal A. Wanigatunga, Junrui Di, Vadim Zipunnikov, Jacek Urbanek, Pei-Lun Kuo, Eleanor M. Simonsick, Luigi Ferrucci, Jennifer A. Schrack

    Udgivet 2019
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  18. 18
    Quantifying the reliability of image replication studies: The image intraclass correlation coefficient (I2C2)

    Quantifying the reliability of image replication studies: The image intraclass correlation coefficient (I2C2) af Haochang Shou, Ani Eloyan, Seonjoo Lee, Vadim Zipunnikov, Adina Crainiceanu, Mary Beth Nebel, Brian Caffo, Martin A. Lindquist, Ciprian M. Crainiceanu

    Udgivet 2013
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  19. 19
    Using Heart Rate and Accelerometry to Define Quantity and Intensity of Physical Activity in Older Adults

    Using Heart Rate and Accelerometry to Define Quantity and Intensity of Physical Activity in Older Adults af Jennifer A. Schrack, Andrew Leroux, Jerome L. Fleg, Vadim Zipunnikov, Eleanor M. Simonsick, Stephanie A. Studenski, Ciprian M. Crainiceanu, Luigi Ferrucci

    Udgivet 2018
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  20. 20
    Active-to-Sedentary Behavior Transitions, Fatigability, and Physical Functioning in Older Adults

    Active-to-Sedentary Behavior Transitions, Fatigability, and Physical Functioning in Older Adults af Jennifer A. Schrack, Pei-Lun Kuo, Amal A. Wanigatunga, Junrui Di, Eleanor M. Simonsick, Adam P. Spira, Luigi Ferrucci, Vadim Zipunnikov

    Udgivet 2018
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