Researcher Database

（Last updated : 2025-04-07 14:10:57）　

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FUJITA Satoshi

Department / Course College of Sport and Health Science Department of Sport and Health Science

Title / Position Professor

Other Affiliations
1.	Graduate School of Sport and Health Science
2.	Research Organization of Open Innovation & Collaboration Research Center for Medical and Long-Term Care Management
3.	Research Organization of Science and Technology The Bio Medical Devices Center
4.	Research Organization of Science and Technology Institute of Advanced Research for Sport and Health Science

Academic background
1.	～1996/05	Master Course │ Exercise Physiology Major │ Exercise Science Program │ Florida State University │ Completed
2.	～2002/05	Doctorial Course │ Exercise Physiology Major │ Department of Kinesiology │ University of Southern California │ Completed
3.	2002/05 Degree Acquisition	│ University of Southern California Ph.D.

Business career
1.	2023/04/01 ～	Associate Fellow │ │ Ritsumeikan Advanced Research Academy (RARA)
2.	2012/04/01 ～	Professor │ │
3.	2009/04/01 ～ 2010/03	Associate Professor │ College of Economics, │ Ritsumeikan University

Subject of research
1.	Mechanisms associated with age-related loss of muscle mass (sarcopenia)
2.	Molecular mechanisms associated with muscle hypertrophy by muscular contraction or nutrient intake

Research summary
Clarification of metabolic response of human skeletal muscle protein, particularly protein assimilation mechanism due to locomotor stimulation and nutrient intake I specialize in exercise physiology and am engaged in the research on skeletal muscle protein metabolism with a focus on the decrease in muscle mass and muscle function (sarcopenia) due to aging. I am advancing a research to clarify the mechanism of protein synthesis and decomposition not only by measuring the change of metabolic system but at the level of a molecule, comparing the protein metabolism between the younger generation and the older generation. I am attempting to research the exercise prescription to maintain and promote general adults' health and to improve athletes' performance, and nutrient intake including supplements from various viewpoints of basics and applications at the Ritsumeikan University.

Present specialized field
Sports Science, Applied health science, Molecular Biology (Keyword：Muscle contraction, nutrient intake, exercise, muscle protein synthesis, sarcopenia, insulin resistance, protein metabolism, amino acids, supplements, aging, cell signaling)

Papers
1.	2022	Co-ingestion of cluster dextrin carbohydrate does not increase exogenous protein-derived amino acid release or myofibrillar protein synthesis following a whole-body resistance exercise in moderately trained younger males: a double-blinded randomized controlled crossover trial. │ European Journal of Nutrition │ 61,pp.2475-2491
2.	2022	The Vitamin D/Vitamin D receptor (VDR) axis in muscle atrophy and sarcopenia │ Cellular Signalling │ 96,pp.110355
3.	2021/11	Knee extensor morphology and sprint performance in preadolescent sprinters. │ Res Q Exerc Sport. │
4.	2021/10/27	Intramuscular injection of mesenchymal stem cells activates anabolic and catabolic systems in mouse skeletal muscle. │ Sci Rep. │
5.	2021/10	Oral administration of l-citrulline alters the vascular delivery of substances to rat skeletal muscles. │ Biochem Biophys Rep. │
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Academic conference presentation
1.	2022/09/02	The impact of online-based group resistance training on physical health and executive function in older individuals during COVID-19 pandemic
2.	2022/09/01	Changes in sarcolipin expression during the early phase of resistance training in rat skeletal muscle
3.	2022/09/01	Intramuscular injection of mesenchymal stem cells not only accelerates muscle protein anabolic response but also activates catabolic systems after acute bouts of resistance exercise in mice
4.	2022/08/31	Effect of β-GPA on Mitochondrial Oxidative Phosphorylation after Muscle Contraction
5.	2021/09/08	Intramuscular injection of mesenchymal stem cells activates not only muscle protein anabolic
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Winning science prize
1.	2006/04	American Society for Nutrition Abstract Competition Award, American Society for Nutrition
2.	2005/04	The American Physiological Society Recognition Award for Meritorious Research by a Young Investigator, The American Physiological Society

Department laboratory expense researcher number
80451863

researchmap Researcher code
6000017469