Effect of electromyostimulation training on intramuscular fat index in the older adults

• Project/Area Number: 18K17764
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 59010:Rehabilitation science-related
• Research Institution: Teikyo Heisei University
• Principal Investigator: HIOKI Maya 帝京平成大学, 健康医療スポーツ学部, 准教授 (60769058)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2019: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 筋電気刺激トレーニング / 骨格筋異所性脂肪 / サルコペニア肥満 / 加齢 / 筋萎縮

Outline of Final Research Achievements

The purpose of this study was to examine whether intramuscular fat index changes by electromyostimulation (EMS) training of the quadriceps femoris for 12 weeks (3 times/week) in older adults. Intramuscular fat index was evaluated by echo intensity of vastus lateralis and rectus femoris before and after EMS training. Blood samples were collected before and after EMS training for the plasma glucose and free fatty acid (FFA). EMS training did not significant change intramuscular fat index and plasma glucose or FFA. EMS training for 12 weeks may not change intramuscular fat index and blood biochemistry.

Academic Significance and Societal Importance of the Research Achievements

加齢に伴い過度に蓄積された筋細胞外異所性脂肪は、生活習慣病の発症リスク要因になる。筋細胞外異所性脂肪量に対する筋電気刺激法の有効性は、生活習慣病罹患者を減らすための重要な検討課題である。本研究は、高齢者に12週間の筋電気刺激法トレーニングを実施し、その効果を検証したが、筋細胞外異所性脂肪量に対するトレーニング効果は得られなかった。

Research Products

• [Journal Article] Relationship between adiponectin and intramuscular fat content determined by ultrasonography in older adults (2022)
  • Author(s): Hioki Maya、Kanehira Nana、Koike Teruhiko、Saito Akira、Shimaoka Kiyoshi、Sakakibara Hisataka、Oshida Yoshiharu、Akima Hiroshi
  • Journal Title: PLOS ONE Volume: 17 Issue: 1 Pages: e0262271-e0262271
  • DOI: 10.1371/journal.pone.0262271
  • Peer Reviewed / Open Access
• [Journal Article] Effect of electromyostimulation on intramyocellular lipids of the vastus lateralis in older adults: a randomized controlled trial (2021)
  • Author(s): Hioki Maya、Kanehira Nana、Koike Teruhiko、Saito Akira、Takahashi Hideyuki、Shimaoka Kiyoshi、Sakakibara Hisataka、Oshida Yoshiharu、Akima Hiroshi
  • Journal Title: BMC Musculoskeletal Disorders Volume: 22 Issue: 1 Pages: 569-569
  • DOI: 10.1186/s12891-021-04456-6
  • Peer Reviewed / Open Access
• [Journal Article] Age-related changes in muscle volume and intramuscular fat content in quadriceps femoris and hamstrings (2020)
  • Author(s): Maya Hioki, Nana Kanehira, Teruhiko Koike, Akira Saito, Kiyoshi Shimaoka, Hisataka Sakakibara, Yoshiharu Oshida, Hiroshi Akima
  • Journal Title: Experimental Gerontology Volume: － Pages: 110834-110834
  • DOI: 10.1016/j.exger.2020.110834
  • Peer Reviewed / Open Access
• [Journal Article] Relationship between physical activity and intramyocellular lipid content is different between young and older adults (2018)
  • Author(s): Hioki Maya、Kanehira Nana、Koike Teruhiko、Saito Akira、Takahashi Hideyuki、Shimaoka Kiyoshi、Sakakibara Hisataka、Oshida Yoshiharu、Akima Hiroshi
  • Journal Title: European Journal of Applied Physiology Volume: 119 Issue: 1 Pages: 113-122
  • DOI: 10.1007/s00421-018-4005-x
  • Peer Reviewed / Open Access
• [Presentation] 12週間の筋電気刺激トレーニングが高齢者の筋内脂肪指標と血液成分に与える影響 (2021)
  • Author(s): 日置麻也、髙橋寛子、齋藤輝、今井瑞香、安田秀喜
  • Organizer: 第76回日本体力医学会
• [Presentation] Differences in lower leg kinetic of soccer instep kicking between female and male players (2021)
  • Author(s): Iitake Tsuyoshi、Hioki Maya、Takahashi Hitoshi、Nunome Hiroyuki
  • Organizer: 39th International Society of Biomechanics in Sport Conference
  • Int'l Joint Research
• [Presentation] サッカーインステップキック動作の動力学的性差 (2020)
  • Author(s): 飯竹烈士、日置麻也、高橋仁、布目寛幸
  • Organizer: 日本バイオメカニクス学会第26回大会2020
• [Presentation] 加齢に伴い蓄積された骨格筋細胞内・外脂質の同定とその応用的研究 (2020)
  • Author(s): 日置麻也，兼平奈奈，小池晃彦，齋藤輝，高橋英幸，島岡清，榊原久孝，押田芳治，秋間広．
  • Organizer: 名古屋大学 脳とこころの研究センターシンポジウム
• [Presentation] Electromyostimulation induced changes in intramyocellular lipid of vastus lateralis in older adults (2019)
  • Author(s): Maya Hioki, Nana Kanehira, Teruhiko Koike, Akira Saito, Hideyuki Takahashi, Kiyoshi Shimaoka, Hisataka Sakakibara, Yoshiharu Oshida, Hiroshi Akima.
  • Organizer: The 66th Annual Meeting of American College of Sports Medicine
  • Int'l Joint Research
• [Presentation] 車いす競技選手における左右の大腿部・上腕部筋量とパフォーマンステストの評価 (2019)
  • Author(s): 日置麻也，松島佳子，久米秀作．
  • Organizer: 第74回日本体力医学会大会
• [Presentation] Electromyostimulation-induced changes in intramyocellular lipid of vastus lateralis in older adults (2019)
  • Author(s): Maya Hioki, Nana Kanehira, Teruhiko Koike, Akira Saito, Hideyuki Takahashi, Kiyoshi Shimaoka, Hisataka Sakakibara, Yoshiharu Oshida, Hiroshi Akima
  • Organizer: The 66th Annual Meeting of American College of Sports Medicine
  • Int'l Joint Research
• [Presentation] 中高齢者における筋電気刺激法による外側広筋のIMCLの早期変化 (2018)
  • Author(s): 日置麻也，兼平奈奈，小池晃彦，齋藤輝，高橋英幸，島岡清，榊原久孝，押田芳治，秋間広．
  • Organizer: 第73回日本体力医学会大会