Updated on 2022/08/14

写真a

 
LEE, Sihyung
 
Affiliation
Research Council (Research Organization), Comprehensive Research Organization
Job title
Research Associate
Mail Address
メールアドレス

Education

  • 2017.09
    -
    2022.03

    Waseda University   Graduate School of Sport Sciences  

  • 2013.09
    -
    2014.11

    Loughborough University   School of Sport, Exercise and Health Sciences  

  • 2006.03
    -
    2013.02

    Yonsei University   Food and Nutrition  

Degree

  • 2013.02   Yonsei University   BSc

  • 2014.11   Loughborough University   MSc

  • 2022.03   Waseda University   PhD

Research Experience

  • 2022.04
    -
    Now

    Waseda University   Waseda Institute of Sports Nutrition

Professional Memberships

  • 2019.04
    -
    Now

    American College of Sports Medicine

  • 2018.07
    -
    Now

    Korean Society for Exercise Nutrition

  • 2018.07
    -
    Now

    Japan Sports Nutrition Association

 

Research Areas

  • Sports sciences   Relative Energy Deficiency in Sports (RED-S)

  • Nutrition science and health science   Energy metabolism

Research Interests

  • Resting Energy Expenditure/Resting Metabolic Rate/Basal Metabolic Rate

  • Exercise physiology

  • Sports Nutrition

Papers

  • Within-day energy balance and metabolic suppression in male collegiate soccer players

    Lee, S., Moto, K., Han, S., Oh, T., Taguchi, M.

    Nutrients   13 ( 8 ) 2644 - 2644  2021  [Refereed]

    Authorship:Lead author

     View Summary

    Metabolic suppression due to relative energy deficiency can cause various physiological impairments in athletes. The purpose of this study was to evaluate within-day energy balance (WDEB) and the ratio between measured and predicted resting energy expenditure (REEratio) and to investigate the relationships between the markers of metabolic suppression. Ten male collegiate soccer players completed a 7-day food diary, physical activity, and heart rate records during the training and rest days. Energy intake (EI) and energy expenditure (EE) were analyzed to evaluate WDEB components. Body composition was measured using dual-energy X-ray absorptiometry (DXA), and blood sampling was conducted for hormonal analysis. The REE was measured using the Douglas bag method and predicted using the DXA-predicted method to calculate the REEratio. Participants were categorized into the normal (REEratio ≥ 0.94, n = 5) and suppressed (REEratio < 0.94, n = 5) groups. There were no group differences in the components of WDEB, except diet-induced thermogenesis (DIT), but EI was significantly higher in the normal group than in the suppressed group (7-day total: 3660 ± 347 vs. 3024 ± 491 kcal/day, p = 0.046 and rest days: 3772 ± 463 vs. 2796 ± 800 kcal/day, p = 0.046). Analysis of hormonal markers of metabolic suppression only showed a significant positive association between insulin-like growth factor-1 (IGF-1) and REEratio (r = 0.771, p = 0.009). The relationships between metabolic suppression and the markers of energy deficiency were inconclusive. There are possible associations of insufficient EI and IGF-1 levels with metabolic suppression, and further study is required to understand energy deficiency in male soccer players.

    DOI

  • Association of Low Energy Availability and Suppressed Metabolic Status in Korean Male Collegiate Soccer Players: A Pilot Study

    Sihyung Lee, Moto Kuniko, Seungah Han, Taewoong Oh, Motoko Taguchi

    American Journal of Men's Health   14 ( 6 ) 155798832098218 - 155798832098218  2020.11  [Refereed]

    Authorship:Lead author

    DOI

  • Energy Intake Deficiency Promotes Bone Resorption and Energy Metabolism Suppression in Japanese Male Endurance Runners: A Pilot Study

    Taguchi, M., Moto, K., Lee, S., Torii, S., Hongu, N.

    American Journal of Men's Health   14 ( 1 )  2020  [Refereed]

    DOI

  • Application and Evaluation of Nutrition Education & Counseling Program for Adolescent Ice Skating Players

    Seong-Suk Cho, Su-Jin Bae, Yoo-Jeong Lee, Si-Hyung Lee, Hyon Park

    Journal of Coaching Development   20 ( 4 ) 71 - 80  2018.12  [Refereed]

    DOI

Other

  • Dietitian

    2015.06
    -
    2015.07

     View Summary

    2015 Gwangju Summer Universiade, Food & Beverage Department, Athletes Village Dining Hall Dietitian (Contractor)

  • Translator

    2014.11
    -
     

     View Summary

    AIBA Women’s World Boxing Championships Jeju 2014, Organisation Committee Translator (Contractor)

  • Dietitian

    2014.08
    -
    2014.10

     View Summary

    2014 Incheon Asian Games & Asian Para Games, Athletes Village Service Department, Athletes Village Dining Hall Dietitian (Contractor)

  • Dietitian

    2013.05
    -
    2013.07

     View Summary

    2013 Incheon Indoor & Martial Arts Games, Athletes Village Service Department, Athletes Village Dining Hall Dietitian (Contractor)

  • Translator

    2012.07
    -
    2012.08

     View Summary

    2012 London Olympic Korean Olympic Committee, Athletes Support Department, Translator (Contractor)

Presentations

  • Effects of relative energy deficiency on metabolism and biomarkers in Korean male athletes.

    Sihyung LEE

    67th Annual Meeting of American College of Sports Medicine 

    Presentation date: 2020.05

  • Relationship between energy status and metabolic suppression in collegiate male soccer players.

    Sihyung LEE

    57th Korean Alliance for Health, Physical Education, Recreation, and Dance Conference: Korean Society for Exercise Nutrition Seminar 

    Presentation date: 2019.10

  • Dietary intake patterns and energy expenditure during one week in collegiate male soccer player in Korea.

    Sihyung LEE

    Top Global University Project: KU Leuven-Waseda International Workshop 

    Presentation date: 2019.03

  • Energy availability, total bone mineral density, and serum hormone levels of male collegiate runners in Japan: A pilot study.

    Sihyung LEE

    39th Korean Society for Exercise Nutrition Spring Conference 

    Presentation date: 2018.05

  • Food habits, health status, and menstrual function of female collegiate athletes in Korea.

    Forum on Top Global University Project: Formulating an International Academic Network in Health and Exercise Science 

    Presentation date: 2018.03

 

Teaching Experience

  • Sports Nutrition

    Bucheon University  

    2017.03
    -
    2017.09
     

  • Sports Nutrition

    Baehwa Women’s University  

    2016.09
    -
    2016.12