HITOMI OGATA

Last Updated :2025/07/07

Affiliations, Positions
Graduate School of Humanities and Social Sciences, Professor
E-mail
hogatahiroshima-u.ac.jp
Self-introduction
Study of a chrono-nutrition and chrono-exercise from a view of the human circadian system. Study on estimating the daily energy expenditure of firefighters required to carry out high-load activities in disaster and the effects of the evacuees' sleeping environment on sleep quality. Recently, a study on the effects of the three components of health on physical and mental health, as well as a study on supporting women's healths.

Basic Information

Major Professional Backgrounds

  • 2025/04/01, Hiroshima University Graduate School of Humanities and Social Sciences, Professor
  • 2008/04/01, 2011/03/31, The university of Tokyo, Graduate school of education, JSPS Research Fellow
  • 2011/04/01, 2013/12/31, University of Tsukuba, Faculty of health and sport sciences, Research assistant professor
  • 2014/01/01, 2016/08/31, University of Tsukuba, Faculty of health and sport sciences, JSPS Research Fellow
  • 2016/09/01, 2019/03/31, Hiroshima University, Graduate School of Integrated Arts and Sciences, Assistant Professor
  • 2007/04/01, 2008/03, University of Tsukuba, Researcher
  • 2019/04/01, 2020/03/31, Hiroshima University, Graduate School of Integrated Arts and Sciences, Associate Professor
  • 2020/04/01, 2025/03/31, Hiroshima University Graduate School of Humanities and Social Sciences, Associate Professor

Educational Backgrounds

  • University of Tsukuba, 2005/04, 2007/03
  • University of Tuskuba, 2003/04, 2005/03
  • University of Tsukuba, 1999/04, 2003/03

Academic Degrees

  • University of Tsukuba
  • University of Tsukuba

Educational Activity

  • [Bachelor Degree Program] School of Integrated Arts and Sciences : Department of Integrated Arts and Sciences : Integrated Arts and Sciences
  • [Master's Program] Graduate School of Humanities and Social Sciences : Division of Humanities and Social Sciences : Integrated Arts and Human Sciences Program
  • [Doctoral Program] Graduate School of Humanities and Social Sciences : Division of Humanities and Social Sciences : Integrated Arts and Human Sciences Program

Research Fields

  • Complex systems;Health / Sports science;Sports science

Affiliated Academic Societies

  • Japanese society of physical fitness and sports medicine, Japan society of nutrition and food science, The Japanese society of sleep research, Japan Society of Physical Education Health and Sport Sciences, Japan Chrono-nutrition Research Society(JCRS), Japan Disaster Food Society, The Japan Society of Sleep and Environments

Educational Activity

Course in Charge

  1. 2025, Liberal Arts Education Program1, 1Term, Practicum in SportsＡ
  2. 2025, Liberal Arts Education Program1, 2Term, Practicum in SportsＡ
  3. 2025, Liberal Arts Education Program1, 3Term, Practicum in SportsＡ
  4. 2025, Liberal Arts Education Program1, Intensive, Practicum in SportsＡ
  5. 2025, Liberal Arts Education Program1, 3Term, Sports Theory and Exercise
  6. 2025, Liberal Arts Education Program1, 2Term, Sports Theory and Exercise
  7. 2025, Undergraduate Education, 2Term, Experimental methodsIn Sport and Health Sciences B
  8. 2025, Undergraduate Education, 2Term, Laboratory Work in Sport and Health Sciences B
  9. 2025, Undergraduate Education, 3Term, SeminarIn Sport and Health Sciences C
  10. 2025, Undergraduate Education, 4Term, Sports Nutrition
  11. 2025, Undergraduate Education, 1Term, Introductory Lectures of Human Movement Sciences I
  12. 2025, Undergraduate Education, 1Term, Introductory Lectures of Human Movement Sciences II
  13. 2025, Graduate Education (Master's Program) , 3Term, Physiology and Biochemistry of Exercise
  14. 2025, Graduate Education (Master's Program) , Year, Special Study

Research Activities

Academic Papers

  1. Measurement of energy expenditure using a triaxial accelerometer and estimation of energy intake from dietary records during decathlon competition days, American Journal of Sports Science, 12(3), 28-36, 20240731
  2. Sleep characteristics in underweight young females across their menstrual cycles: A sleep-monitoring survey study with preliminary results, JOURNAL OF SLEEP RESEARCH, 34(1), e14254, 202502
    Link to Paper Search Results by DOI
  3. Multi-scaling allometry in human development, mammalian morphology, and tree growth, SCIENTIFIC REPORTS, 14(1), 20240828
    Link to Paper Search Results by DOI
  4. Allometric multi-scaling of weight-for-height relation in children and adolescents: Revisiting the theoretical basis of body mass index of thinness and obesity assessment, PLOS ONE, 19(7), 20240718
    Link to Paper Search Results by DOI
  5. Running exercise and food restriction affect bone chemical properties in young female rats, Phys Act Nutr, 27(2), 62-69, 20230630
  6. Energy Expenditure of Disaster Relief Operations Estimated Using a Tri-Axial Accelerometer and a Wearable Heart Rate Monitor, Int J Environ Res Public Health, 20(9), 5742, 20230508
  7. Age- and height-dependent bias of underweight and overweight assessment standards for children and adolescents, FRONTIERS IN PUBLIC HEALTH, 12, 1379897, 20240424
    Link to Paper Search Results by DOI
  8. Individually optimized estimation of energy expenditure in rescue workers using a tri-axial accelerometer and heart rate monitor, FRONTIERS IN PHYSIOLOGY, 15, 1322881, 20240215
    Link to Paper Search Results by DOI
  9. Dietary palmitic acid to oleic acid ratio modulates energy metabolism and biological rhythms in young healthy Japanese males, BRITISH JOURNAL OF NUTRITION, 131(3), 447-460, 20240214
    Link to Paper Search Results by DOI
  10. Blood Glucose Levels during Decathlon Competition: An Observational Study in Timing of Intake and Competing Time, METABOLITES, 14(1), 47, 20240112
    Link to Paper Search Results by DOI
  11. Energy Expenditure of Disaster Relief Operations Estimated Using a Tri-Axial Accelerometer and a Wearable Heart Rate Monitor, Int J Environ Res Public Health, 20(9), 5742, 202305
  12. Delayed Eating Schedule Raises Mean Glucose Levels in Young Adult Males: a Randomized Controlled Cross-Over Trial, JOURNAL OF NUTRITION, 153(4), 1029-1037, 20230110
    Link to Paper Search Results by DOI
  13. Meal Timing and Sleeping Energy Metabolism, NUTRIENTS, 15(3), 20230202
    Link to Paper Search Results by DOI
  14. Effect of Seat Angle when Sleeping in a Car on Quality of Sleep and Its Impact on Calculation Performance the Following Day, INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 19(19), 20220927
    Link to Paper Search Results by DOI
  15. Exercise improves the quality of slow-wave sleep by increasing slow-wave stability, SCIENTIFIC REPORTS, 11(1), 20210224
    Link to Paper Search Results by DOI
  16. Effect of a single bout of morning or afternoon exercise on glucose fluctuation in young healthy men, PHYSIOLOGICAL REPORTS, 9(7), 202104
    Link to Paper Search Results by DOI
  17. Estimating Total Energy Expenditure for Fire-Fighters during Large Scale Disaster Response Training Using a Tri-Axial Accelerometer, NUTRIENTS, 13(8), 202108
    Link to Paper Search Results by DOI
  18. Metabolic flexibility during sleep, SCIENTIFIC REPORTS, 11(1), 20210908
    Link to Paper Search Results by DOI
  19. Effect of a single bout of exercise on clock gene expression in human leukocyte, JOURNAL OF APPLIED PHYSIOLOGY, 128(4), 847-854, 202004
    Link to Paper Search Results by DOI
  20. Evaluation of Sleep Quality in a Disaster Evacuee Environment, INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 17(12), 202006
    Link to Paper Search Results by DOI
  21. ★, Skipping Breakfast for 6 Days Delayed the Circadian Rhythm of the Body Temperature without Altering Clock Gene Expression in Human Leukocytes, NUTRIENTS, 12(9), 202009
    Link to Paper Search Results by DOI
  22. ★, Effect of skipping breakfast for 6 days on energy metabolism and diurnal rhythm of blood glucose in young healthy Japanese males, AMERICAN JOURNAL OF CLINICAL NUTRITION, 110(1), 41-52, 201907
    Link to Paper Search Results by DOI
  23. ★, Association between breakfast skipping and postprandial hyperglycaemia after lunch in healthy young individuals, BRITISH JOURNAL OF NUTRITION, 122(4), 431-440, 20190828
    Link to Paper Search Results by DOI
  24. Improvement of slow wave sleep continuity by mattress with better body pressure dispersal, Sleep Medicine Research (SMR), 10(2), 75-82, 201911
  25. Influence of isomaltulose ingestion on fat oxidation during inclemental exercise in endurance athletes, American Journal of Sports Science (AJSS), 7(4), 193-198, 20191217
  26. The effect of maple syrup ingestion on fat oxidation during incremental exercise in endurance athletes, American Journal of Sports Science (AJSS), 7(4), 149-154, 20191024
  27. Adequate energy intake prevents low bone mass under exercise and low intake of nutrients in young female rats, American Journal of Sports Science (AJSS), 7(3), 127-135, 20190924
  28. Meal rich in rapeseed oil increases 24-h fat oxidation more than meal rich in palm oil, PLOS ONE, 13(6), e0198858, 20180614
    Link to Paper Search Results by DOI
  29. Exercise before breakfast increases 24-h fat oxidation in female subjects, PLOS ONE, 12(7), e0180472, 201707
  30. Effects of subacute ingestion of chlorogenic acids on sleep architecture and energy metabolism through activity of the autonomic nervous system: a randomised, placebo-controlled, double-blinded crossover trial, Br J Nutr., 117(7), 979-984, 201704
  31. Energy metabolism differs between sleep stages and begins to increase prior to awakening, Metabolism, 69, 14-23, 201701
  32. A novel approach to calculating the thermic effect of food in a metabolic chamber, Physiol Rep., 4(4), e12717, 201602
  33. Blood glucose and lactate kinetics during an incremental running test in endurance runners, Int. J. Sport Health Sci., 14, 11-20, 201605
  34. The preventive effect of calcium supplementation on weak bones caused by the interaction of exercise and food restriction in young female rats during the period from acquiring bone mass to maintaining bone mass, Calcif Tissue Int., 98(1), 94-103, 201601
  35. The interaction of voluntary running exercise and food restriction induces low bone strength and low bone mineral density in young female rats, Calcif Tissue Int., 97(1), 90-99, 2015
  36. Exercise increases 24-h fat oxidation only when it is performed before breakfast, EBioMedicine, 2, 2003-2009, 2015
  37. Blood glucose threshold is not consistent with lactate threshold by different evaluation methods, Adv. Exerc. Sports Physiol., 21(1), 17-24, 2015
  38. Transient energy deficit induced by exercise increases 24 h fat oxidation in young trained men, J Appl Physiol, 118, 80-85, 2015
  39. ★, Lack of negative correlation in glucose dynamics by NEAT restriction in healthy adults, Med Sci Sports Exerc., 45, 60-66, 2013
  40. The lack of long-range negative correlations in glucose dynamics is associated with worse glucose control in patient with diabetes mellitus, Metabolism, 61, 1041-1050, 2012
  41. Long-range correlated glucose fluctuations in diabetes, Methods Inf. Med., 46, 222-226, 2007
  42. ★, Long-range negative correlation of glucose dynamics in humans and its breakdown in diabetes mellitus, Am. J. Physiol., 291, R1638-R1643, 2006

Invited Lecture, Oral Presentation, Poster Presentation

  1. Relationship of children's physical activity and school meals-focusing on school hours-, Rikako Yoshitake, Masami Suzuki, Hisashi Nagayama, Nao Koizumi, Satoko Ozawa, Hitomi Ogata, Naomi Omi, 9th International conference on nutrition & Growth 2022., 2022/03, Without Invitation, English
  2. Energy balance during competition in the heptathlon, Rikako Yoshitake, Maya Shrestha, Hitomi Ogata, Hisashi Nagayama, Naomi Omi, International sport exercise nutrition conference 2021, 2021/12, Without Invitation, English
  3. Acute effects of monounsaturated (oleic acid) and saturated (palmitic acid) dietary fats on 24hour energy metabolism, Katsuhiko Yajima, Kaito Iwayama, Insung Park, Akira Ando, Ayane Ogawa, Hitomi Ogata, Kumpei Tokuyama, World Obesity Federation IOC 2016, 13th International Congress on Obesity, 2016/05/01, Without Invitation, English, Vancouver, Canada
  4. Comparison between energy intake and expenditure using accelerometers in large scale disaster scenarios, Nao Koizumi, Hitomi Ogata, Naomi Omi, International Union of Nutritional Sciences (IUNS) 21st International Congress of Nutrition (ICN), 2017/10/15, Without Invitation, English, Buenos Aires
  5. Effects of meal rich in monounsaturated or saturated fatty acid on energy metabolism and biological rhythm., Katsuhiko Yajima, Nozomi Kashiba, Ken Takagi, Momoko Kayaba, Hitomi Ogata, Insung Park, Yoshiaki Tanaka, Makoto Satoh, Kumpei Tokuyama, 4th international conference on Recent Advances and Controversies in Measuring Energy Metabolism (RACMEM), 2017/10/20, Without Invitation, English, Fribourg, Switzerland
  6. Deference in dietary fatty acid composition changes energy metabolism, biological rhythm and sleep, Katsuhiko Yajima, Hitomi Ogata, Momoko Kayaba, Insung Park, Yoshiaki Tanaka, Makoto Satoh, Kumpei Tokuyama, The 13th Congress Of The International Society For The Study Of Fatty Acids And Lipids (ISSFAL2018), 2018/05/27, Without Invitation, English, Las Vegas, USA