Details of a Researcher

写真a

LEE, Sihyung

Affiliation

Research Council (Research Organization), Comprehensive Research Organization

Job title

Research Associate

Mail Address

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