ࡱ> ceb L0jbjbjj z>, ]xxxxxxx80$Tz TLf/ $S 7999999,rexg g g e xxT g xx766xxxxg 7  Ixx7 4<[ 4#SPORTSCIENCE  sportsci.orgNews & Comment: Research ResourcesImpact Factors of Journals in Sport and Exercise ScienceWill G Hopkins PhDDepartment of Physiology and School of Physical Education, University of Otago, Dunedin 9001, New Zealand. Email:  HYPERLINK "mailto:will.hopkins@otago.ac.nz" will.hopkins@otago.ac.nzSportscience 4(3), sportsci.org/jour/0003/wgh.html, 2000 (1592 words)Reviewed by Frank I Katch PhD, Department of Exercise Science, University of Massachusetts, Amherst, Massachusetts 01003 A journal's impact factor is the number of times the average recent article in the journal has been mentioned (cited) in other recent articles. The impact factor is therefore an objective measure of influence of journals in a discipline. The four journals with the highest impact factors in sport and exercise science are Exercise and Immunology Reviews (impact factor 2.9), American Journal of Sports Medicine (2.3), Medicine and Science in Sports and Exercise (2.1), and Journal of Applied Physiology (2.1). All other journals in this discipline have impact factors of 1.5 or less. Researchers concerned about their career development should take impact factors into account before submitting an article for publication.KEYWORDS: citation, promotion, publication The Institute for Scientific Information (ISI) publishes an annual summary of indices related to citations in scientific periodicals. The impact factor is probably the most important of these indices. ISI defines the impact factor as "the average number of current citations to articles the journal published in the previous two years" (ISI, 2000). To calculate the current impact factor of a journal, ISI counted the articles published in the journal in 1998 and 1999, counted the number of times those articles were cited in all other articles published before March 2000, then divided the number of citations by the number of articles. In simple terms, an impact factor of 2.0 for a journal means that the average recent article in the journal has been mentioned in 2.0 other recent articles. Frequent mention of an article in other articles implies that the article is influential within its discipline. The impact factor represents the average influence of a journal's articles, so it is an objective measure of the influence of the journal and probably also a good index of overall quality of its articles. It is apparently for this reason that journal impact factors have become a consideration in the assessment of a researcher's publications for the purpose of appointment or promotion. Researchers concerned about their career development should therefore take impact factors into account before they submit their work for publication. Table 1 shows a list of the impact factors of most journals that publish articles in exercise and sport science. The list of journal titles came from the  HYPERLINK "http://www.kines.uiuc.edu/kinesforum/journals.asp" Kinesiology Forum, where each title is linked to instructions for authors. I edited the list before inviting subscribers on the Sportscience mailing list to suggest other journal titles. I then added the available impact factors from the ISI report. I have also put the factors and titles into an Excel spreadsheet and added columns identifying the sub-disciplines for each journal.  HYPERLINK "ex_sport_impact_factors.xls" Click here to download this list, then sort it by a sub-discipline and impact factor. The list in Table 1 includes Nature, Science, and several other high-impact multidisciplinary journals. Such journals will consider exercise or sport research articles of exceptional originality, topicality, or relevance to the wider scientific community. For a recent example, see Lasne and de Ceaurriz (2000). Publication of an article in these journals enhances the careers of the researchers and improves the standing of exercise and sport science as a discipline. Be cautious when comparing impact factors of journals in disciplines that differ in overall publication activity. Disciplines with higher rates of publication have more journals, so for purely statistical reasons these disciplines have a wider range in impact factors. The range then widens as researchers submit their best work to the best journals and cite articles only in the best journals. In the active disciplines of genetics, biochemistry, and immunology, some journals have impact factors that exceed 10, whereas impact factors of journals that publish articles predominantly in exercise and sport science are currently all less than 3.0. It may be wrong to conclude that the average quality of research in exercise and sport science is inferior to that in disciplines with more extreme impact factors, or that the typical variation in quality is wider among researchers in disciplines with a higher total research output. Table 1. Impact factors of journals in exercise and sport science, including key multidisciplinary journals. Journals without an impact factor are not in ISI's database.  HYPERLINK "ex_sport_impact_factors.xls" Download this list as an Excel spreadsheet.ACSM's Health and Fitness Journal1.4Acta Physiologica Scandinavica1.3Adapted Physical Activity Quarterly2.0American Heart Journal2.4American Journal of Cardiology4.0American Journal of Clinical Nutrition4.0American Journal of EpidemiologyAmerican Journal of Health Promotion0.8American Journal of Human Biology2.1American Journal of Hypertension0.9American Journal of Physical Medicine and Rehabilitation3.0American Journal of Physiology: Endocrinology and Metabolism2.7American Journal of Physiology: Heart and Circulatory Physiology3.0American Journal of Public Health5.5American Journal of Respiratory and Critical Care Medicine2.3American Journal of Sports MedicineAmerican Psychologist1.1Annals of Nutrition and Metabolism1.0Annals of the New York Academy of Sciences5.5Annual Review of Nutrition20Annual Review of Physiology0.4Applied Ergonomics0.8Applied Psychological MeasurementApplied Psychology1.1Archives of Physical Medicine and Rehabilitation1.6Arthritis Care and Research0.5Aviation Space and Environmental MedicineBehavior Research Methods, Instruments, and Computers2.7Behavioral Neuroscience3.2Biochemical and Biophysical Research Communications0.9British Journal of Sports Medicine1.3Canadian Journal of Applied Physiology1.5Canadian Journal of Physiology and Pharmacology3.1Cardiovascular Research2.4Chest9.9Circulation8.3Circulation Research0.8Clinical BiomechanicsClinical Exercise Physiology1.1Clinical Journal of Sport Medicine1.1Clinical Nutrition0.7Clinical Physiology2.3Clinical ScienceClinical Science and Clinical Biochemistry2.0Clinics in Chest Medicine0.9Clinics in Sports Medicine9.0Diabetes1.1Diabetes and Metabolism0.7Diabetes Nutrition and Metabolism2.4Diabetes--Metabolism Research and Reviews2.2Diabetic Medicine5.2Diabetologia0.6Educational and Psychological Measurement0.7Ergonomics1.0European Journal of Applied PhysiologyEuropean Journal of NutritionEuropean Journal of Physical Medicine and Rehabilitation2.4European Journal of Physiology (Pflugers Archive)European Physical Education Review2.3European Respiratory JournalEuropean Sports History Review2.9Exercise and Immunology ReviewsExercise and Sport Sciences Reviews1.2Experimental Physiology0.7Human Movement Science4.9Hypertension2.0International Journal of Epidemiology3.2International Journal of Obesity1.5International Journal of Sport Nutrition and Exercise Metabolism1.0International Journal of Sports MedicineInternational Journal of the History of SportInternational Review for the Sociology of Sport11JAMA--Journal of the American Medical Association1.2Japanese Journal of PhysiologyJournal of Aging and Physical Activity7.4Journal of American College of Cardiology1.6Journal of American College of Nutrition1.9Journal of American Dietetic AssociationJournal of Applied Behavioral Science0.9Journal of Applied Biomechanics2.1Journal of Applied PhysiologyJournal of Applied Sport Psychology0.4Journal of Athletic Training7.7Journal of Biological Chemistry1.5Journal of BiomechanicsJournal of Bodywork and Movement TherapiesJournal of Cardiopulmonary Rehabilitation0.8Journal of Clinical Endocrinology and Metabolism2.1Journal of Clinical Epidemiology11Journal of Clinical Investigation0.5Journal of Clinical PsychologyJournal of Comparative Physical Education and Sport1.7Journal of Epidemiology and Community HealthJournal of Exercise Physiology6.4Journal of General PhysiologyJournal of Human Performance in Extreme Environments3.0Journal of Hypertension2.2Journal of Nutrition1.5Journal of Occupational and Environmental MedicineJournal of Physical Education, Recreation, and Dance4.6Journal of PhysiologyJournal of Science and Medicine in Sport0.4Journal of Social and Clinical PsychologyJournal of Sport Behavior1.5Journal of Sport and Exercise Psychology0.1Journal of Sport Management0.8Journal of Sport Rehabilitation0.1Journal of Sports Chiropractic and Rehabilitation0.5Journal of Sports Medicine and Physical Fitness1.1Journal of Sports Sciences0.02Journal of Sports Traumatology0.6Journal of Strength and Conditioning ResearchJournal of Swimming Research0.7Journal of Teaching in Physical Education1.0Journal of the Philosophy of Sport10LancetLeisure Sciences1.0Leisure Studies2.0LipidsMeasurement in Physical Education and Exercise Science0.1Medicina dello Sport2.1Medicine and Science in Sports and ExerciseMedicine and Sport Science1.9Metabolism Clinical and Experimental1.9Muscle and Nerve29Nature27Nature Medicine29New England Journal of Medicine1.7Nutrition0.6Nutrition Metabolism and Cardiovascular Diseases3.4Obesity Research0.7Pediatric Exercise SciencePediatric Physical Therapy0.3Perceptual and Motor Skills1.2Physical TherapyPhysical Therapy in SportPhysical Therapy Reviews0.3Physician and Sportsmedicine24Physiological Reviews1.6Preventive Medicine10Proceedings of the National Academy of Sciences7.4Progress in Lipid ResearchPsychology of Sport and Exercise1.2Public Health Reports1.1Research Quarterly for Exercise and Sport1.3Scandinavian Journal of Clinical and Laboratory Investigation0.7Scandinavian Journal of Medicine and Science in Sports25Science0.2Science and Sports0.5Sociology of Sport JournalSport History Review1.0Sport PsychologistSport, Education, and Society1.5Sports MedicineSports Medicine Training and RehabilitationStrength and Conditioning0.01Strength and Conditioning Journal3.4Thorax16Trends in Biochemical Science3.1Trends in Endocrinology and Metabolism References Institute for Scientific Information (2000). 1999 journal citation reports (science and social science editions). Philadelphia, PA: ISI Lasne F, de Ceaurriz J (2000). Recombinant erythropoietin in urine. Nature 405, 635 Webmastered by Will Hopkins Published Dec 2000. 2000  PAGE 3 A{/01IJ  STABCMN?@cdEFlmX CJOJQJOJQJjSUjUjU6CJ0JjU jU55B*CJOJQJ5B*CJ OJQJ 5B*CJ$C@Az{KL  ϐP$<$$$l\\$$$l\\ $#$$l0x\x $$$@Az{KL     - o?@Dcdh EFJlmqXY]()-XY]x       Y   - o?$$$ $$$$$$l4u=  $$ & F$$$l!$$l!$?@Dcdhѐp-$$l0nux$$$ $$$$-$$l0nux EFJlmqXY]-$$l0nux$$$ $$$$XY()XYxy"#CDrs()TU>?VWopCDrs  & ' a b !!%! 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