World's Best Scientists 2026 revealed!
Roy J. Shephard

Roy J. Shephard

D-Index & Metrics

Medicine

D-Index
123
Citations
76156
World Ranking
3285
National Ranking
138

Roy J. Shephard publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Roy J. Shephard sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 1,775 publications — 99th percentile

99% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Roy J. Shephard D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Roy J. Shephard sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 123 D-Index — 84th percentile

84% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Roy J. Shephard is affiliated with the University of Toronto in Canada and focuses primarily on medical research with an emphasis on orthopedics and sports medicine. Their work spans physiology, biomedical engineering, cardiology, and complementary and alternative medicine.

Their recent publications include studies centered on physical activity, sports performance, and health during challenging conditions such as the COVID-19 pandemic. Notable papers include the 2020 work titled "Staying Physically Active During the Quarantine and Self-Isolation Period for Controlling and Mitigating the COVID-19 Pandemic: A Systematic Overview of the Literature" published in Frontiers in Psychology. Also published in 2020 are studies such as "The effect of a sand surface on physical performance responses of junior male handball players to plyometric training" in BMC Sports Science Medicine and Rehabilitation, and "Effects of Upper and Lower Limb Plyometric Training Program on Components of Physical Performance in Young Female Handball Players" in Frontiers in Physiology. Additional works include the 2020 publication "The 2020 Physical Activity Readiness Questionnaire for Everyone (PAR-Q+) and electronic Physical Activity Readiness Medical Examination (ePARmed-X+)" in Open Collections and the 2021 article "Neuromuscular Adaptations and Enhancement of Physical Performance in Female Basketball Players After 8 Weeks of Plyometric Training" in Frontiers in Physiology.

Shephard has frequently collaborated with peers such as Mohamed Souhaiel Chelly, Mehréz Hammami, Nawel Gaamouri, Nicola Luigi Bragazzi, and Souhail Hermassi. These collaborations suggest a focus on sports medicine and physiology research networks.

Their work appears predominantly in venues including:

  • Frontiers in Physiology
  • Open Collections
  • Scientific Reports
  • International Journal of Environmental Research and Public Health
  • International Journal of Sports Science & Coaching

Their expertise covers several interconnected fields of study, including:

  • Medicine

Within medicine, their research is concentrated in subfields such as:

  • Orthopedics and Sports Medicine
  • Physiology
  • Biomedical Engineering
  • Cardiology and Cardiovascular Medicine
  • Complementary and alternative medicine

Main topics addressed in their research encompass:

  • Sports injuries and prevention
  • Sports Performance and Training
  • Physical Activity and Health
  • Sports Dynamics and Biomechanics
  • Cardiovascular Effects of Exercise
  • Cardiovascular and exercise physiology
  • Gut microbiota and health

Best Publications

  • A simple method to assess exercise behavior in the community

    Godin G;Shephard Rj

  • Revision of the Physical Activity Readiness Questionnaire (PAR-Q).

    Scott Thomas;Jeff Reading;Roy J. Shephard

  • Position statement. Part one: Immune function and exercise.

    Walsh Np;Gleeson M;Shephard Rj;Woods Ja

  • Physical education, school physical activity, school sports and academic performance

    François Trudeau;Roy J Shephard

  • Physical Activity, Fitness, and Health

    Claude Bouchard;Roy Shephard;Peter Brubaker

  • Physical activity, fitness, and health consensus statement

    Claude Bouchard;Roy J. Shephard;Thomas Stephens

  • Position statement. Part two: Maintaining immune health.

    Neil P. Walsh;Michael Gleeson;David B. Pyne;David C. Nieman

  • Exercise as Cardiovascular Therapy

    Roy J. Shephard;Gary J. Balady

  • Physical activity, fitness and health : the model and key concepts

    Claude Bouchard;Roy J. Shephard

  • Prediction of Long-Term Prognosis in 12 169 Men Referred for Cardiac Rehabilitation

    Terence Kavanagh;Donald J. Mertens;Larry F. Hamm;Joseph Beyene

  • Evidence-informed physical activity guidelines for Canadian adults.

    Darren E. R. Warburton;Peter T. Katzmarzyk;Ryan E. Rhodes;Roy J. Shephard

  • Worksite physical activity interventions

    Rod K. Dishman;Brian Oldenburg;Heather O’Neal;Roy J. Shephard

  • PAR-Q, Canadian Home Fitness Test and Exercise Screening Alternatives

    Roy J. Shephard

  • Contribution of school programmes to physical activity levels and attitudes in children and adults

    François Trudeau;Roy J. Shephard

  • Peak oxygen intake and cardiac mortality in women referred for cardiac rehabilitation.

    Terence Kavanagh;Donald J Mertens;Larry F Hamm;Larry F Hamm;Joseph Beyene

  • Curricular Physical Activity and Academic Performance

    Roy J. Shephard

  • Leisure Time Exercise Questionnaire

    G. Godin;R. J. Shephard

  • Effects of in-season short-term plyometric training program on leg power, jump- and sprint performance of soccer players.

    Mohamed Souhaiel Chelly;Mohamed Ali Ghenem;Khalil Abid;Souhail Hermassi

  • The Cytokine Response to Physical Activity and Training

    Andrei I. Moldoveanu;Roy J. Shephard;Pang N. Shek

  • Physical activity and aging

    Roy J. Shephard

Frequent Co-Authors

Claude Bouchard
Claude Bouchard Pennington Biomedical Research Center
Gaston Godin
Gaston Godin Université Laval
Kazuyoshi Takeda
Kazuyoshi Takeda Juntendo University
Ko Okumura
Ko Okumura Juntendo University
Hideo Yagita
Hideo Yagita Juntendo University
Mark S. Tremblay
Mark S. Tremblay Children's Hospital of Eastern Ontario
Peter T. Katzmarzyk
Peter T. Katzmarzyk Pennington Biomedical Research Center
Bruce Kirkcaldy
Bruce Kirkcaldy Ruhr University Bochum
Joseph Beyene
Joseph Beyene McMaster University
Karim Chamari
Karim Chamari Naufar Center

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