The chronological change in muscular strength of pregnant women on hospital bed rest by threatened premature delivery -using ultrasound-

• Project/Area Number: 25670974
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Lifelong developmental nursing
• Research Institution: Nagasaki University
• Principal Investigator: OISHI Kazuyo 長崎大学, 医歯薬学総合研究科(保健学科), 教授 (00194069)
• Co-Investigator(Kenkyū-buntansha): ETO Hiromi 長崎大学, 大学院医歯薬学総合研究科(保健学科), 教授 (10213555) ; NAGAHASHI Miyuki 長崎大学, 大学院医歯薬学総合研究科(保健学科), 准教授 (10304974) ; OKITA Minoru 長崎大学, 大学院医歯薬学総合研究科(保健学科), 教授 (50244091)
• Research Collaborator: AKAHOSHI Emi 長崎大学病院, 助産師 ; TUBOTA Sachiko 長崎大学病院, 助産師
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 切迫早産妊婦 / 長期臥床 / 廃用性筋委縮 / 大腿四頭筋筋厚 / 超音波診断装置 / 長期臥床妊婦 / 超音波診断機器 / 経時的変化 / 妊産褥婦 / 超音波診断 / 下肢筋力低下

Outline of Final Research Achievements

We measured the quadriceps strength and the muscle thickness quadriceps of 20s women. Significant relationships were found between quadriceps strength and muscle thickness quadriceps. This results confirmed that the muscle thickness quadriceps is an indicator of the quadriceps strength of young women. Next we examined the chronological change in the muscle thickness of quadriceps during pregnancy and postpartum period. We found significant increases in the muscle thickness of quadriceps from 28w to 37w. And the reduction in the muscle thickness of quadriceps was significant from 37w to postpartum 4 days and to postpartum 1 month respectively. Finally, pregnant women on hospital bed rest by threatened premature delivery were examined every week from hospitalization to leaving hospital. Their muscle thickness of quadriceps were significant decreased after hospitalization. The results suggest that bed rest reflects the muscle thickness of quadriceps of pregnant women.

Research Products

• [Presentation] 若年女性の大腿周径及び大腿四頭筋筋厚と大腿四頭筋筋力との関係 (2016)
  • Author(s): 大石和代,
  • Organizer: 第30回日本助産学会
  • Place of Presentation: 京都大学百周年時計台記念館（京都府・京都市）
  • Year and Date: 2016-03-19
• [Presentation] The chronological Change in muscle thickness of quadriceps during pregnancy (2015)
  • Author(s): Norimi KUBO, Yuki MIZUO, Kazuyo OISHI
  • Organizer: The ICM Asia Pacific Regional Conferance 2015
  • Place of Presentation: パシフィコ横浜（神奈川県横浜市）
  • Year and Date: 2015-07-20 – 2015-07-22
• [Presentation] The chronological change in muscle thickness of quadriceps during postpartum period (2015)
  • Author(s): Yuki MIZUO, Norimi KUBO, Kazuyo OISHI
  • Organizer: The ICM Asia Pacific Regional Conferance 2015
  • Place of Presentation: パシフィコ横浜（神奈川県横浜市）
  • Year and Date: 2015-07-20 – 2015-07-22
• [Presentation] The Chronological Change in Muscle Thickness of Quadriceps During Pregnancy (2015)
  • Author(s): Kubo C, Mizuo Y, Oishi K
  • Organizer: The 11th ICM Asia Pacific Regional Conference
  • Place of Presentation: パシフィコ横浜（横浜市）
  • Year and Date: 2015-07-20
  • Int'l Joint Research
• [Presentation] The Chronological Change in Muscle Thickness of Quadriceps During Postpartum Period (2015)
  • Author(s): Mizuo Y, Kubo C, Oishi K
  • Organizer: The 11th ICM Asia Pacific Regional Conference
  • Place of Presentation: パシフィコ横浜（横浜市）
  • Year and Date: 2015-07-20
  • Int'l Joint Research