World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
106
Citations
37379
World Ranking
6590
National Ranking
3499

Michael I. Polkey 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 Michael I. Polkey 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: 689 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Michael I. Polkey 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 Michael I. Polkey 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: 106 D-Index — 69th percentile

69% of scientists in this discipline score the same or lower.

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

Overview

Michael I. Polkey is affiliated with the National Institutes of Health in the United States. Their research primarily focuses on medicine, with a significant emphasis on pulmonary and respiratory medicine.

The main fields of study in which Michael I. Polkey has contributed include:

  • Medicine

Subfields within medicine where they have notable involvement are:

  • Pulmonary and Respiratory Medicine
  • Physiology
  • Endocrine and Autonomic Systems
  • Critical Care and Intensive Care Medicine
  • Complementary and alternative medicine

Their research spans various topics, specifically:

  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Respiratory Support and Mechanisms
  • Obstructive Sleep Apnea Research
  • Neuroscience of respiration and sleep
  • Cardiovascular and exercise physiology
  • Long-Term Effects of COVID-19
  • Music Therapy and Health

Michael I. Polkey has published extensively in several venues, including:

  • Thorax
  • BMJ Open Respiratory Research
  • American Journal of Respiratory and Critical Care Medicine
  • bioRxiv (Cold Spring Harbor Laboratory)
  • ERJ Open Research

Some key recent papers authored or co-authored by Michael I. Polkey include:

  • Pharmacologic Management of Chronic Obstructive Pulmonary Disease. An Official American Thoracic Society Clinical Practice Guideline (2020), published in American Journal of Respiratory and Critical Care Medicine
  • Social isolation, loneliness and physical performance in older adults: fixed effects analyses of a cohort study (2020), published in Scientific Reports
  • Patient symptoms and experience following COVID-19: results from a UK-wide survey (2021), published in BMJ Open Respiratory Research
  • Objectively Measured Physical Activity in Patients with COPD: Recommendations from an International Task Force on Physical Activity (2021), published in Chronic Obstructive Pulmonary Diseases Journal of the COPD Foundation
  • Impact of COVID-19 on people with asthma: a mixed methods analysis from a UK wide survey (2022), published in BMJ Open Respiratory Research

The scientist collaborates frequently with several co-authors, including:

  • Nicholas S Hopkinson
  • Keir Philip
  • Sara Buttery
  • Daisy Fancourt
  • Parris Williams

Best Publications

  • Quadriceps strength predicts mortality in patients with moderate to severe Chronic Obstructive Pulmonary Disease

    Elisabeth Bryony Swallow;Diana Reyes;Nicholas S Hopkinson;William Ding-Cheong Man

  • The prevalence of quadriceps weakness in COPD and the relationship with disease severity

    John Seymour;M. A. Spruit;N. S. Hopkinson;S. A. Natanek

  • ERS statement on respiratory muscle testing at rest and during exercise

    Pierantonio Laveneziana;Andre Albuquerque;Andrea Aliverti;Tony Babb

  • Minimum clinically important difference for the COPD Assessment Test: a prospective analysis

    Samantha S.C. Kon;Jane L. Canavan;Sarah E. Jones;Claire M. Nolan

  • Effect of Home Noninvasive Ventilation With Oxygen Therapy vs Oxygen Therapy Alone on Hospital Readmission or Death After an Acute COPD Exacerbation: A Randomized Clinical Trial

    Patrick B. Murphy;Patrick B. Murphy;Sunita Rehal;Gill Arbane;Stephen Bourke;Stephen Bourke

  • An official European Respiratory Society statement on physical activity in COPD

    Henrik Watz;Fabio Pitta;Carolyn L. Rochester;Judith Garcia-Aymerich

  • Oxidative stress-induced mitochondrial dysfunction drives inflammation and airway smooth muscle remodeling in patients with chronic obstructive pulmonary disease.

    Coen H. Wiegman;Charalambos Michaeloudes;Gulammehdi Haji;Priyanka Narang

  • Respiratory muscle strength and ventilatory failure in amyotrophic lateral sclerosis

    R A Lyall;N Donaldson;M I Polkey;P N Leigh

  • Bronchoscopic volume reduction with valve implants in patients with severe emphysema.

    Tudor P Toma;Nicholas S Hopkinson;James Hillier;David M Hansell

  • Exercise-induced respiratory muscle fatigue: implications for performance

    Lee M. Romer;Michael I. Polkey

  • The COPD assessment test (CAT): response to pulmonary rehabilitation. A multicentre, prospective study

    James W. Dodd;Lauren Hogg;Jane Nolan;Helen Jefford

  • Sarcopenia in COPD: prevalence, clinical correlates and response to pulmonary rehabilitation

    Sarah E Jones;Matthew Maddocks;Samantha S C Kon;Jane L Canavan

  • Determinants and outcomes of physical activity in patients with COPD: a systematic review

    Elena Gimeno-Santos;Anja Frei;Claudia Steurer-Stey;Jordi de Batlle

  • Community pulmonary rehabilitation after hospitalisation for acute exacerbations of chronic obstructive pulmonary disease: randomised controlled study

    William D.-C. Man;Michael I. Polkey;Nora Donaldson;Barry J. Gray

  • Ultrasound measurement of rectus femoris cross-sectional area and the relationship with quadriceps strength in COPD

    John M Seymour;Katie Ward;Paul Sidhu;Zudin Puthucheary

  • Bronchoscopic lung volume reduction with endobronchial valves for patients with heterogeneous emphysema and intact interlobar fissures (the BeLieVeR-HIFi study): a randomised controlled trial

    Claire Davey;Zaid Zoumot;Simon Jordan;William H McNulty

  • Quadriceps wasting and physical inactivity in patients with COPD

    Dinesh Shrikrishna;Mehul Patel;Rebecca J. Tanner;John M. Seymour

  • Outpatient pulmonary rehabilitation following acute exacerbations of COPD

    John M. Seymour;Lauren Moore;Caroline J. Jolley;Katie Ward

  • Six-minute-walk test in chronic obstructive pulmonary disease: minimal clinically important difference for death or hospitalization.

    Michael I. Polkey;Martijn A. Spruit;Lisa D. Edwards;Michael L. Watkins

  • The Prevalence of Quadriceps Weakness in COPD and the Relationship with Disease Severity.

    JM Seymour;MA Spruit;NS Hopkinson;A Sathyapala

Frequent Co-Authors

John Moxham
John Moxham King's College London
Ruth Tal-Singer
Ruth Tal-Singer GlaxoSmithKline (United Kingdom)
William MacNee
William MacNee University of Edinburgh
Peter M.A. Calverley
Peter M.A. Calverley University of Liverpool
Emiel F.M. Wouters
Emiel F.M. Wouters Maastricht University
Martijn A. Spruit
Martijn A. Spruit Maastricht University
Paul Cullinan
Paul Cullinan Imperial College London
Peter Goldstraw
Peter Goldstraw Imperial College London
Milo A. Puhan
Milo A. Puhan University of Zurich

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