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DR. YAJUN CHEN
Position: Postdoctoral Fellow
Telephone: (852) 2609 6085
Email: yjch@cuhk.edu.hk


EDUCATION
  • BEd, MSc (South China Normal University)
  • PhD (The Chinese University of Hong Kong)
RESEARCH INTEREST
  • Sports Nutrition in Sports and Exercise Science
  • Exercise immunity in Endurance Athletes
  • Carbohydrate metabolism and Exercise Performance
PUBLICATIONS: REFEREED JOURNALS
  1. Chen Y.J., Sun, F.H., Wong, S.H., and Huang, Y.J. Glycemic index and glycemic load of selected Chinese traditional foods. World Journal of Gastroenterology (Accepted).

  2. Sun, F.H., Wong, S.H., Chen, Y.J., and Huang, Y.J. Evaluation of a glucose meter in determining the glycemic index of Chinese traditional foods. Diabetes Technology & Therapeutics (Accepted).

  3. Chen Y.J., Wong S.H., Chan O.W., Wong C.K., Lam C.W., and Siu P.M. (2009) Effects of glycemic index meal and CHO-electrolyte drink on cytokine response and run performance. Journal of Science and Medicine in Sport,12: 697-703

  4. Wong, S.H., Chen, Y.J., Fung, W. M., and Morris, J. G. (2009) Effect of glycemic index meals on recovery and subsequent endurance capacity. International Journal of Sports Medicine, 30: 898-905

  5. O'Reilly, J., Wong, S.H., and Chen, Y.J. (2009) Glycemic index, glycemic load and exercise performance. Sports Medicine 2010; 40 (1): 27-39

  6. Wong S.H., Chan O.W., Chen Y.J., Hu H.L., Lam C.W., and Chung P. K. (2009) Effect of low and high pre-exercise glycemic index meal on running performance when carbohydrate-electrolyte solution is consumed during exercise. International Journal of Sports Nutrition & Exercise Metabolism, 19:222-242.

  7. Chen Y.J., Wong S.H., Wong C.K., Lam C.W., Huang Y.J., and Siu P.M. (2008). The effect of a pre-exercise carbohydrate meal on immune responses to endurance performance run. British Journal of Nutrition, 100(6): 1260 ¡V 1268.

  8. Chen, Y.J., Wong, S.H., Xu, X.Y., Hao, X.M., Wong, C.K., and Lam, C.W. (2008). Effect of CHO loading patterns on running performance. International Journal of Sports Medicine, 29(7): 598-606.

  9. Chen, Y.J., Wong, S.H., Wong, C.K., Lam, C.W., Huang, Y.J., and Siu, P.M. (2008). Effect of pre-exercise meals with different glycemic indices (GI) and glycemic loads (GL) on metabolic responses and endurance running performance. International Journal of Sport Nutrition & Exercise Metabolism, 18, 281-300.

  10. Chan, O.W., Wong, S.H., and Chen, Y.J. (2008). Effects of a hot environment on simulated cycling and running performance in triathletes. Journal of Sports Medicine and Physical Fitness, 48(2): 149-157.

  11. Wong, S.H., Siu, P.M., Chen, Y.J., Lok, A. Morris, J., and Lam, C.W. (2008). Effect of Glycemic Index of Pre-exercise Carbohydrate Meals on Running Performance. European Journal of Sport Science, 8(1): 23 - 33.

  12. Chen, Y.J. and Wong, S.H. (2008). Effect of a pre-exercise carbohydrate meal with different glycemic index and glycemic load on endurance run. Chinese Journal of Sports Medicine, 27(3): 323-328.

  13. Chen, Y.J. and Wong, S.H. (2007). Application of glycemic load in sports nutrition and health. Chinese Journal of Sports Medicine, 26(4): 517-520.

  14. Chen, Y.J. and Wong, S.H. (2005). Application of doubly labeled water to measurement of energy expenditure. Chinese Journal of Sports Medicine, 24(1): 119-124.

  15. Wong, S. H. and Chen, Y.J. (2004). Application of glycemic index in sports nutrition. Chinese Journal of Sports Medicine, 23(3): 291-296.

  16. Wong, S. H. and Chen, Y.J. (2003). Effect of high and low glycemic index meals on short-term recovery from prolonged, submaximal running and subsequent endurance capacity. Sports Science Research, 24 (1):8-12.

  17. Wong, S. H., Chen, Y.J., and Lok, C.M. (2003). Influence of pre-exercise consumption of low and high glycemic index food on endurance performance. Chinese Journal of Sports Medicine, 22(5): 453-457.

  18. Chen, Y.J., Xu, X.Y., and Deng, S.X. (2001). Se, Se Deficiency and exercise. Journal of Chengdu Physical Education Institute, 27(2):87-90, 94.

ABSTRACT/ PROCEEDINGS
  1. Chen, Y.J., Wong, S.H. Lam, M., Huang, Y.J., and Zhang, H.W. (2009). A meta-analysis of effects of pre-exercise diets with different glycemic index on endurance performance. Medicine & Science in Sports & Exercise, 41(5): s115.

  2. Wong, S.H., Sun, F.H., Chen, Y.J., and Huang, Y.J. (2009). Determination of the glycemic index of selected Chinese traditional foods using different glucose analyzers. Medicine & Science in Sports & Exercise, 41(5): s444-445.

  3. Pei, X.M., Teng, B.T., Ng, J.W., Benzie, I.F., Chen, Y. J.,, Wong, S.H., and Siu, P.M. (2009). Effect of voluntary exercise on Bcl-2 and Bax in rat cardiac and skeletal muscles. Medicine and Science in Sports and Exercise, 41(5): s214.

  4. Pei, X.M., Ng, J.W., Wong, W.C., Benzie, I.F., Chen, Y,J., Wong, S.H., and Siu, P.M. (2008). Two months voluntary exercise does not alter the gene expression of apoptotic factors in rat cardiac and skeletal muscles. Proceeding of the 6th Pan-Pacific Conference on Rehabilitation, Hong Kong, China, p90.

  5. Teng, B.T., Pei, X.M., Ng, J.W., Wong, W.C., Benzie, I.F., Chen, Y.J., Wong, S.H., and Siu, P.M. (2008). Transcriptional response of nitric oxide synthase and E3 ubiquitin ligase to two months voluntary exercise in rat striated muscles. Proceeding of the 6th Pan-Pacific Conference on Rehabilitation, Hong Kong, China, p78.

  6. Wong, S.H., Chen, Y.J., and Hao, X.M. (2007). Effect of carbohydrate loading with different glycemic index and glycemic load on running performance and metabolic responses. Medicine & Science in Sports & Exercise, 39(5): s21.

  7. Chen, Y.J., Wong, S.H., and Xu X.Y. (2007). Pre-exercise carbohydrate loading with different glycemic index and glycemic load on immune responses and running performance. Medicine & Science in Sports & Exercise, 39(5): s463.

  8. Chen, Y.J., Wong, S.H., and Wong, C.K. (2006). Pre-exercise diet with different glycemic index and glycemic load on immune responses and running performance. Medicine & Science in Sports & Exercise, 38(5): s75.

  9. Huang, Y.J., Chen, Y.J., and Wong, S.H. (2006). Pre-exercise meals with different glycemic index and glycemic load on metabolic responses and endurance performance. Medicine & Science in Sports & Exercise, 38(5): s37.

  10. Chen, Y.J., Wong, S.H., and Chan, O.W. (2005). Effect of glycemic index meal and carbohydrate solution on immune responses and running performance. Medicine & Science in Sports & Exercise, 37(5): s374-s375.

  11. Wong, H.S., Chan O.W., and Chen, Y.J. (2005). Pre-exercise glycemic index meal: effect on running performance when carbohydrate-electrolyte solution is consumed during exercise. Medicine & Science in Sports & Exercise, 37(5): s306.

  12. Wong, S.H., Chan, O.W., and Chen, Y.J. (2003). Influence of a hot environment on exercise performance in triathletes. Journal of Beijing University of Physical Education, 26 (26), p79.

BOOK CHAPTERS
  • Wong S.H. and Chen Y.J. (2006). Carbohydrate and Exercise Metabolism. In Feng W.C., Xie M, Wong S.H. et al. Research Development on Exercise Biochemistry. Beijing University of Physical Education.

  • Wong S.H. and Chen Y.J. (2006). Fluid replacement and Exercise. In Feng W.C., Xie M, Wong S.H. et al. Research Development on Exercise Biochemistry. Beijing University of Physical Education.

FUNDED RESEARCH
  1. Principal Investigator ¡§Effect of Pre-exercise Energy Bar Ingestion on Substrate Utilization during Subsequent Endurance Exercise in Active Women" (2008-2009 RGC Direct Grant) (HK$ 40,000)

  2. Co-Investigator, "A Longitudinal Study of Physical Activity, Nutrition and Childhood Obesity in Hong Kong" (2008-2009 RGC General Research Fund) (HK$ 964,100)

  3. Co-Investigator, ¡§Rehydration and cognitive performance after moderate endurance exercise in a hot and humid environment: comparison of 3 commonly used drinks¡¨ (2009-2010 Otsuka Pharmaceutical Company, Ltd., Japan) (HK$ 405,000)

  4. Co-Investigator, Co-Investigator, ¡§eLearning upgrade for Health and PE and Exercise Physiology students¡¨ 2008-2009 Courseware Development Grant) (HK$ 50,000)

  5. Co-Investigator, "A Surveillance Study on Physical Activity, Nutritional Status and Childhood Obesity in Hong Kong" (2006-2007 RGC Direct Grant) (HK$ 58,800)

  6. Co-Investigator, "Glycogenin and cytokine mRNA expression in response to 2 h of running in human skeletal muscle: influence of diet with different glycemic index and glycemic load"(2006-2007 RGC Direct Grant) (HK$ 68,000)

  7. Co-Investigator, "Influence of 3-day Carbohydrate Loading with Different Glycemic Index and Glycemic Load Meal on "Immune Response and Endurance Performance"(2006-2007 RGC Direct Grant) (HK$ 68,000)
CONFERENCE/SYMPOSIUM PRESENTATION
  1. "A meta-analysis of effects of pre-exercise diets with different glycemic index on endurance performance¡¨ 56th Annual American College of Sports Medicine Meeting. Seattle, Washington, May 27 - 30, 2009. (Oral presentation).

  2. "Effect of carbohydrate meal with difference glycemic index and glycemic load on immune responses" The 8th National Congress on Sports and Exercise Science. Beijing, China, Oct 23 - 26, 2007. (Oral presentation).

  3. "Effect of carbohydrate loading with different glycemic index and glycemic load on running performance and metabolic responses." 54th Annual American College of Sports Medicine Meeting. New Orleans, Louisiana, USA, June 2007. (Oral presentation).

  4. "Pre-exercise carbohydrate loading with different glycemic index and glycemic load on immune responses and running performance¡¨. 54th Annual American College of Sports Medicine Meeting. New Orleans, Louisiana, USA, June 2007. (Poster presentation).

  5. "Pre-exercise diet with different glycemic index and glycemic load on immune responses and running performance¡¨. 53rd Annual American College of Sports Medicine Meeting. Denver, Colorado, USA, June 2006. (Oral presentation).

  6. "Pre-exercise diet with different glycemic index and glycemic load on metabolic responses and endurance performance¡¨. 53rd Annual American College of Sports Medicine Meeting. Denver, Colorado, USA, June 2006. (Oral presentation).

  7. "The Influence of 3-day carbohydrate loading with different glycemic index and glycemic load meal on immune responses and endurance performance¡¨. The 3rd post-graduate student seminar. 2006 Theme: Musculoskeletal Science in Rehabilitation.

  8. "Effect of glycemic index meal and carbohydrate solution on immune responses and running performance". 52nd Annual American College of Sports Medicine Meeting. Nashville, Tennessee, USA, June 2005. (Poster presentation)

  9. "Effect of high-CHO and high-fat meal meals on endurance performance and physiological responses ". The 4th National Youth Congress on Sport Science. Guangzhou, Nov 7-10, 2005, China Sports Science Society. (Poster Presentation)

COURSES TAUGHT FOR POSTGRADUATE PROGRAM IN THE SSPE DEPARTMENT, THE CHINESE UNIVERSITY OF HONG KONG
  • EXS6201 Physiological Benefits, Limits and Adaptation
  • EXS6202 Sport Nutrition for Health and Performance

COURSES TAUGHT FOR UNDERGRAGRADUATE AND POSTGRADUATE PROGRAM IN THE DEPARTMENT OF PHYSICAL EDUCATION, THE HONG KONG INSTITUTE OF EDUCATION
  • PES6190 Physical Activity, Health and Fitness in School Populations
  • PES 2161 Essentials of Human Anatomy & Physiology

MEMBERSHIP OF PROFESSIONAL ASSOCIATIONS
  • Member, American College of Sports Medicine (ACSM)
  • Member, American Physiological Society (APS)
Department of Sports Science and Physical Education, Faculty of Education, The Chinese University of Hong Kong
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