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Functional Relevance of Epimuscular Interactions: An Approach with Ultrasound Elastography to Reveal Aging-Related Changes

Research Project

Project/Area Number 16K16537
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Sports science
Research InstitutionWaseda University

Principal Investigator

Ates Filiz  早稲田大学, スポーツ科学学術院, 助教 (10770828)

Project Period (FY) 2016-04-01 – 2017-03-31
Project Status Discontinued (Fiscal Year 2016)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywordsforce transmission / elbow muscles / wrist joint function / thigh muscles / knee joint function / muscular interactions / ageing / stiffness / wrist flexion / thigh
Outline of Annual Research Achievements

During the first period, (i) ethical approval was obtained (ii) materials necessary to perform Protocol I were prepared; (iii) setup was established with (iv) preliminary experiments, (v) experiments of Protocol I were performed and (vi) data was analyzed.
The results of Protocol I testing the effects of activity of an elbow flexor on the wrist joint supported our hypotheses on functional relevance of epimuscular myofascial force transmission for forearm: It was shown that (i) stimulation of brachioradialis (BR) caused a significant increase in wrist flexion torque. Elastic modulus of not only activated BR but also distant flexor carpi radialis (FCR) muscle increased significantly. (ii) During voluntary wrist flexion, elastic modulus of a wrist flexor, FCR significantly increased. Elastic modulus of BR increased, as well while the increase in the EMG RMS values were slight.
Results were submitted and presented as ‘Functional Relevance of Epimuscular Interactions at Forearm: In vivo Assessments with Ultrasound Elastography’ in the International Society of Electromyography and Kinesiology (ISEK) Conference in Chicago in July 2016.
Data was also presented in (i) Katip Celebi University, Izmir, Turkey and (ii) Yeditepe University, Istanbul, Turkey.
Additional to the planned work, setup of Protocol II (testing the effects of inter-antagonistic interactions on thigh muscles during hip flexion voluntary contraction) was established, preliminary works were performed, and the experiments of Protocol II were completed in healthy young adults.

Report

(1 results)
  • 2016 Annual Research Report
  • Research Products

    (1 results)

All 2016

All Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Functional Relevance of Epimuscular Interactions at Forearm: In vivo Assessments with Ultrasound Elastography2016

    • Author(s)
      Filiz Ates, Yasuo Kawakami
    • Organizer
      International Society of Electromyography and Kinesiology (ISEK)
    • Place of Presentation
      Chicago, USA
    • Year and Date
      2016-07-05
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2018-01-16  

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