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D-Index & Metrics

Social Sciences and Humanities

D-Index
45
Citations
20746
World Ranking
3734
National Ranking
1785

Overview

John R. Sirard is affiliated with the University of Massachusetts Amherst in the United States. Their research primarily falls within the broad field of Medicine, with a significant focus on Physiology and Public Health, Environmental and Occupational Health, as well as Complementary and Alternative Medicine. Additional subfields include Experimental and Cognitive Psychology and General Health Professions.

Sirard's work covers several main topics, notably Physical Activity and Health, Obesity, Physical Activity, Diet, and Cardiovascular and Exercise Physiology. Other topics addressed include Sports Performance and Training, Sleep and Related Disorders, Health and Lifestyle Studies, and Behavioral Health and Interventions.

The scientist has authored multiple papers published in various academic venues. Frequent publication platforms include Medicine & Science in Sports & Exercise, Journal for the Measurement of Physical Behaviour, Journal of Adolescent and Young Adult Oncology, UNC Libraries, and American Journal of Health Behavior.

Key recent papers include:

  • "Sleep is Inversely Associated with Sedentary Time among Youth with Obesity" (2020, American Journal of Health Behavior)
  • "Sleep Measurement Using Wrist-Worn Accelerometer Data Compared with Polysomnography" (2022, Sensors)
  • "Association of the time of day of peak physical activity with cardiovascular mortality: Findings from the UK Biobank study" (2023, Chronobiology International)
  • "A Novel Video-Based Direct Observation System for Assessing Physical Activity and Sedentary Behavior in Children and Young Adults" (2020, Journal for the Measurement of Physical Behaviour)
  • "Expert Consensus on Physical Activity Use for Young Adult Cancer Survivors' Biopsychosocial Health: A Modified Delphi Study" (2021, Journal of Adolescent and Young Adult Oncology)

Sirard has collaborated frequently with a number of coauthors. These include Robert T. Marcotte, John Staudenmayer, Melanna F. Cox, Greg J. Petrucci, and Nicholas Remillard.

Best Publications

  • Calibration of the Computer Science and Applications, Inc. accelerometer.

    Patty S. Freedson;Edward Melanson;John Sirard

  • Using Pedometers to Increase Physical Activity and Improve Health: A Systematic Review

    Dena M. Bravata;Crystal Smith-Spangler;Vandana Sundaram;Allison L. Gienger

  • Age and gender differences in objectively measured physical activity in youth.

    Stewart G. Trost;Russell R. Pate;James F. Sallis;Patty S. Freedson

  • Physical Activity Assessment in Children and Adolescents

    John R. Sirard;Russell R. Pate

  • Longitudinal and Secular Trends in Physical Activity and Sedentary Behavior During Adolescence

    Melissa C. Nelson;Dianne Neumark-Stzainer;Peter J. Hannan;John R. Sirard

  • Compliance with physical activity guidelines: prevalence in a population of children and youth.

    Russell R. Pate;Patty S. Freedson;James F. Sallis;Wendell C. Taylor

  • Physical activity in overweight and nonoverweight preschool children.

    Stewart G. Trost;John R. Sirard;Marsha Dowda;Karin A. Pfeiffer

  • Calibration and Evaluation of an Objective Measure of Physical Activity in Preschool Children

    John R. Sirard;Stewart G. Trost;Karin A. Pfeiffer;Marsha Dowda

  • Influences of preschool policies and practices on children's physical activity.

    Marsha Dowda;Russell R. Pate;Stewart G. Trost;M. Joāo C. A. Almeida

  • Validation of a 3-Day Physical Activity Recall Instrument in Female Youth

    Russell R. Pate;Rebecca Ross;Marsha Dowda;Stewart G. Trost

  • Walking and Bicycling to School: A Review:

    John R. Sirard;Megan E. Slater

  • Physical activity and active commuting to elementary school.

    John R. Sirard;William F. Riner;Kerry L. McIver;Russell R. Pate

  • Motivational factors associated with sports program participation in middle school students.

    John R. Sirard;Karin A. Pfeiffer;Russell R. Pate

  • Using Pedometers to Increase Physical Activity and Improve Health

    Dena M. Bravata;Crystal Smith-Spangler;Vandana Sundaram;Allison L. Gienger

  • Preventing childhood obesity: a solution-oriented research paradigm.

    Thomas N. Robinson;John R. Sirard

  • CALIBRATION OF THE COMPUTER SCIENCE AND APPLICATIONS, INC. (CSA) ACCELEROMETER 256

    P. S. Freedson;J. Sirard;E. Debold;R. Pate

  • Physical activity in overweight and non-overweight pre-school children

    S. G. Trost;J. R. Sirard;M. Dowda;R. R. Pate

  • The effects of increasing outdoor play time on physical activity in Latino preschool children

    Sofiya Alhassan;John R. Sirard;Thomas N. Robinson

  • Field evaluation of the Computer Science and Applications, Inc. physical activity monitor.

    John R. Sirard;Edward L. Melanson;Li Li;Patty S. Freedson

  • The relative influence of demographic, individual, social, and environmental factors on physical activity among boys and girls

    Carrie D. Patnode;Leslie A. Lytle;Darin J. Erickson;John R. Sirard

  • Walking cadence (steps/min) and intensity in 21-40 year olds: CADENCE-adults.

    Catrine Tudor-Locke;Elroy J. Aguiar;Ho Han;Ho Han;Scott W. Ducharme

Frequent Co-Authors

Marsha Dowda
Marsha Dowda University of South Carolina
Karin A. Pfeiffer
Karin A. Pfeiffer Michigan State University
Mary Story
Mary Story Duke University
Jayne A. Fulkerson
Jayne A. Fulkerson University of Minnesota
Dianne Neumark-Sztainer
Dianne Neumark-Sztainer University of Minnesota
Dianne S. Ward
Dianne S. Ward University of North Carolina at Chapel Hill
Darin J. Erickson
Darin J. Erickson University of Minnesota
Melanie M. Wall
Melanie M. Wall Columbia University
Marla E. Eisenberg
Marla E. Eisenberg University of Minnesota
Abby C. King
Abby C. King Stanford University

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