Ultrasonic two-wave detection method of bone composition in athletes, focusing on bone quality

• Project/Area Number: 26350761
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Sports science
• Research Institution: Doshisha University
• Principal Investigator: FUJISAWA Yoshihiko 同志社大学, スポーツ健康科学部, 教授 (20209042)
• Co-Investigator(Kenkyū-buntansha): 北條 達也 同志社大学, スポーツ健康科学部, 教授 (40298740) ; 真野 功 同志社大学, 研究開発推進機構, 研究員 (50581352) ; 井口 順太 京都学園大学, 健康医療学部, 講師 (70727479)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 競技力向上 / 資質 / 骨強度 / 超音波 / トレーニング / 骨質

Outline of Final Research Achievements

We examined the investigation between the results of muscle training and bone composition in university athletes, using an ultrasonic bone densitometer to observe changes in bone during the training process. Observations of changes in muscle and bone during the training process revealed that weight training focused on physical strength was significantly correlated with cortical bone thickness, and weight training focused on power was significantly correlated with cancellous bone density. We will continue to investigate changes in bone composition due to differences in sporting activities and training methods in future, mainly by means of ultrasound densitometer.

Research Products

• [Journal Article] Seasonal changes in anthropometric, physiological, nutritional, and performance factors in collegiate rowers (2018)
  • Author(s): 1)Iguchi J, Kuzuhara K, Katai K, Hojo T, Fujisawa Y, Kimura M, Yanagida Y, Yamada ,Y,
  • Journal Title: Journal of Strength and Conditioning Research Volume: 印刷中 Issue: 11 Pages: 3225-3231
  • DOI: 10.1519/jsc.0000000000002521
  • Peer Reviewed / Open Access
• [Journal Article] Risk Factors for Injury among Japanese Collegiate Players of American Football Based on Performance Test Results (2016)
  • Author(s): J Iguchi, Y Watanabe, M Kimura, Y Fujisawa, T Hojo, Y Yuasa, S Higashi,
  • Journal Title: Journal of Strength and Conditioning Research Volume: 未定 Issue: 12 Pages: 3405-3411
  • DOI: 10.1519/jsc.0000000000001429
  • Peer Reviewed
• [Journal Article] 大学アメリカンフットボール選手における筋力・パワーと外傷の関連性についての考察 (2014)
  • Author(s): 井口順太,藤澤義彦
  • Journal Title: 京都学園大学経営学部論集 Volume: 第23巻，第2号
  • NAID: 40020044314
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] 大学アメリカンフットボール選手を対象としたレジスタンストレーニングによる骨形成への影響についての考察 (2014)
  • Author(s): 井口順太,藤澤義彦, 真野功
  • Journal Title: 同志社スポーツ健康科学 Volume: vol.6
  • NAID: 120005641467
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Injuries in a Japanese division 1 collegiate American football team: A three-season prospective study (2014)
  • Author(s): J.Iguchi,Y.Yamasa,M.Kimura,Y.Fujisawa,T.Hojo,K.Kuzuhara,N.Ichihash
  • Journal Title: Journal of Athletic Training Volume: Vol.48, No.6
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] The comparison of bony structures between Japanese and French population according to the physical activity level (2016)
  • Author(s): Iguchi, J, Hojo, T, Fujisawa, Y.
  • Organizer: 21st Annual Congress of the European College of Sport Science
  • Place of Presentation: オーストリア ウィーン市
  • Year and Date: 2016-07-06
  • Int'l Joint Research
• [Presentation] スポーツ選手の骨密度 (2016)
  • Author(s): 藤澤義彦,真野 功,松川真美，井口順太，北條達也
  • Organizer: シンポジウム運動器：最新の超音波技術で運動器を評価する，日本超音波医学会, 第89回学術集会
  • Place of Presentation: 京都市左京区グランドプリンスホテル京都
  • Year and Date: 2016-05-29
  • Int'l Joint Research / Invited
• [Presentation] レジスタンストレーニングによる筋力向上が柔軟性に与える影響 (2015)
  • Author(s): 中島健太郎, 中村雅俊, 井口順太, 若原 卓, 藤澤義彦, 北條達也
  • Organizer: 第70回日本体力医学会
  • Place of Presentation: 和歌山県民文化会館・ホテルアバローム紀の国
  • Year and Date: 2015-09-18
  • Int'l Joint Research
• [Presentation] Prevalence and Characteristics of Osteochondritis Dissecans of the Elbow among Adolescent Baseball Players (2015)
  • Author(s): Hojo T, Morihara T, Kida Y, Kotoura Y, Tachiiri H, Sukenari T, Furukawa R, Nakamura M, Takeuchi T, Iguchi J, Fujisawa Y, Kubo T,
  • Organizer: 20th Annual Congress of the European College of Sport Science
  • Place of Presentation: Clarion Hotel and Congress Malmo Live, Sweden
  • Year and Date: 2015-06-24
  • Int'l Joint Research
• [Presentation] Effect of Static Stretching on Shoulder Range of Motion and Pitching Biomechanics in University Student Pitchers (2015)
  • Author(s): Nakamura M, Sakabe T, Nakamura Y, Hojo T, Takeuchi K, Tsukuda F, Fujisawa Y
  • Organizer: 20th Annual Congress of the European College of Sport Science
  • Place of Presentation: Clarion Hotel and Congress Malmo Live, Sweden
  • Year and Date: 2015-06-24
  • Int'l Joint Research
• [Presentation] The Analysis for the Relationship between Bone Formation and Physical and Performance Characteristics of Japanese Collegiate American Football Players (2015)
  • Author(s): Iguchi J, Hojo T, Fujisawa Y
  • Organizer: 20th Annual Congress of the European College of Sport Science
  • Place of Presentation: Clarion Hotel and Congress Malmo Live, Sweden
  • Year and Date: 2015-06-24
  • Int'l Joint Research