THE EFFECT OF MUSCLE TENSION AND BODY POSITION ON LEG BLOOD FLOW
肌肉张力和身体姿势对腿部血流的影响
基本信息
- 批准号:13680041
- 负责人:
- 金额:$ 1.41万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2001
- 资助国家:日本
- 起止时间:2001 至 2002
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The purpose of this study was to determine the effect of muscle tension (long vs short stroke length) on femoral artery blood flow during supine and upright knee extension exercise in humans.<In 2002>Six healthy subjects (22-46 years) participated in this study. The LT and critical power (CP) of the power-duration hyperbolic relation of knee extension exercise were estimated by standard procedures. Subjects performed 6 min square-wave knee extension exercise at three different WR in supine and upright position at 60 rpm. The WR were 40%LT, 80%LT, and LT-CP (halfway between the LT and CP). Mean blood velocity of the femoral artery was continuously measured and averaged second-by-second using Doppler sonography. Mean blood flow (MBF) was calculated by using the diameter of the femoral artery determined during exercise using echo ultrasound. Ventilatory and gas exchange responses, mean arterial pressure (MAP) at the level of the femoral artery, and heart rate (HR) were measured during exe … More rcise. Steady-state MBF, oxygen uptake, and HR increased linearly as functions of increasing WR. There were significant differences (P<0.05, by ANOVA) between each WR in steady-state MBF [rest, 568 ± 76 ; 40%LT, 1948 ± 210 ; 80%LT, 2958 ± 150 ; LT-CP, 3973 ± 303 ml/min, mean ± SE]. However, MBF during supine and upright position were similar at the same power output.<In 2003>Six healthy subjects (22-47 years) performed knee extension exercise under two conditions (supine short stroke, SS ; supine long stroke, SL). Stroke displacements were fixed at 10(short) and 20 (long) cm with the long stroke, only half the muscle tension would be required for each power out put compared to exercise with the short stroke. Each exercise consisted of 2 min rest, 5 min kicking, and 2 min recovery. 3 work rate stages ranging from 3 to 11 watts, which correlated with 5% of maximum voluntary contraction at the lowest intensity to 30% at the highest intensity, were performed for each condition. The contraction frequency was set at 40 kicks/min. Mean blood flow (MBF) of the femoral artery was continuously measured and averaged over a cardiac cycle by using Doppler sonography. There were no significant differences (P<0.05, by ANOVA) between SS and SL condition of each WR in steady-state MBF.These result suggested that steady-states mean blood flow of femoral artery during knee extension exercise is related to the power output, irrespective of the muscle tension and body position. Less
本研究旨在探讨人体仰卧位和直立伸膝运动中肌肉张力(长与短)对股动脉血流的影响。2002年,6名22~46岁的健康受试者参加了本研究。用标准程序估算伸膝运动功率-持续时间双曲线关系的LT和临界功率(CP)。受试者在60转/分的仰卧位和直立位进行3种不同WR的6min方波伸膝运动。WR分别为40%LT、80%LT和LT-CP(LT和CP的中间)。连续测量股动脉的平均血流速度,并用多普勒超声逐秒平均。平均血流量(MBF)由运动中超声测量的股动脉内径计算。在EXE…期间测量呼吸和气体交换反应、股动脉水平的平均动脉压(MAP)和心率(HR)更精致。稳态MBF、摄氧量和心率随WR的增加呈线性增加。各WR间稳态MBF差异有统计学意义(P<;0.05)[静息568±76;40%LT 1948±210;80%LT 2958±150;LT-CP 3973±303ml/min,均值±SE]。然而,在相同的功率输出下,仰卧位和直立位的MBF相似。2003年,6名健康受试者(22-47岁)在两种情况下(仰卧短划水,SS;仰卧长划水,SL)进行了伸膝运动。长划臂的冲程位移固定在10(短)厘米和20(长)厘米,与短划程相比,每次力量输出只需要一半的肌肉张力。每次运动包括休息2分钟、踢腿5分钟、恢复2分钟。在每个状态下,分别进行3~11W的3个工作速率阶段,分别对应最低强度下最大自主收缩的5%到最高强度下30%的最大自主收缩。收缩频率设定为40踢/分钟。用多普勒超声连续测定股动脉的平均血流量(MBF),并在一个心动周期内取其平均值。各WR的SS和SL状态下稳态MBF差异无统计学意义(P<;0.05),提示伸膝运动中股动脉稳态平均血流量与功率输出有关,与肌张力和体位无关。较少
项目成果
期刊论文数量(15)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Coats, E.M., H.B.Rossiter, J.R.Day, A.Miura, Y.Fukuba, B.J.Whipp.: "Intensity dependent tolerance to exercise after attaining VO_<2max> in humans"J. Appl. Physiol.. (accepted in press). (2003)
Coats, E.M., H.B.Rossiter, J.R.Day, A.Miura, Y.Fukuba, B.J.Whipp.:“人类达到 VO_<2max> 后对运动的强度依赖性耐受性”J.
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- 影响因子:0
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- 通讯作者:
Coats EM, HB Rossiter, JR Day, A Miura, Y Fukuba, and BJ Whipp: "Intensity dependent tolerance to exercise after attaining VO_<2 max> in humans"J.Appl.Physiol.. [accepted in press].
Coats EM、HB Rossiter、JR Day、A Miura、Y Fukuba 和 BJ Whipp:“人类达到 VO_<2 max> 后对运动的强度依赖性耐受性”J.Appl.Physiol.. [已接受媒体]。
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- 影响因子:0
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木場智史, 林直亨, 三浦 朗, 遠藤雅子, 福場良之, 吉田敬義: "運動時の呼吸循環系の応答に対する筋弛緩時間の影響"信学技報. 102(89). 45-48 (2002)
Satoshi Kiba、Naotoru Hayashi、Akira Miura、Masako Endo、Yoshiyuki Fukuba、Takayoshi Yoshida:“运动期间肌肉放松时间对呼吸循环系统反应的影响”IEICE 技术报告 102(89)。
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- 影响因子:0
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Fukuba, Y., A.Miura, M.Endo, A.Kan, K.Yanagawa, B.J.Whipp: "The curvature constant parameter of the power-duration curve for varied-power exercise"Med. Sci. Sports Exerc.. (accepted in press). (2003)
Fukuba,Y.,A.Miura,M.Endo,A.Kan,K.Yanakawa,B.J.Whipp:“变功率运动的功率-持续时间曲线的曲率常数参数”Med。
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- 影响因子:0
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Koba S, N Hayashi, A Miura, M Endo, Y Fukuba, T Yoshida: "Effect of muscle relaxation time on cardiorespiratory responses during exercise"Technical Report of Ieice. 102(89). 45-48 (2002)
Koba S、N Hayashi、A Miura、M Endo、Y Fukuba、T Yoshida:“运动期间肌肉松弛时间对心肺反应的影响”Ieice 技术报告。
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硫化物电解质的液相合成及合成机理
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10.2497/jjspm.69.95 - 发表时间:
2022 - 期刊:
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- DOI:
10.2109/jcersj2.20205 - 发表时间:
2021 - 期刊:
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Universal detection and genome sequencing technologies for phytoplasmas toward elucidating their diversity and risks in the Pacific island countries
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2021 - 期刊:
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ITO Hiroaki;MIURA Akira;GOTO Yosuke;MIZUGUCHI Yoshikazu;MORIYOSHI Chikako;KUROIWA Yoshihiro;ROSERO-NAVARRO Nataly Carolina;TADANAGA Kiyoharu;前島健作・宮﨑彰雄・丹野和幸・鈴木拓海・鯉沼宏章・岩渕望・難波成任・山次康幸;Toshiro Shigaki - 通讯作者:
Toshiro Shigaki
知識の逸脱性に対する時間を通じた評価の変化 -特許を利用した探索的な分析-
知识偏差评估随时间的变化 - 使用专利的探索性分析 -
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2023 - 期刊:
- 影响因子:0
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ITO Hiroaki;MIURA Akira;GOTO Yosuke;MIZUGUCHI Yoshikazu;MORIYOSHI Chikako;KUROIWA Yoshihiro;ROSERO-NAVARRO Nataly Carolina;TADANAGA Kiyoharu;片岡純也 - 通讯作者:
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地域愛着の把握に向けた新規入職時における産業・地域移動の可視化
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2021 - 期刊:
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MIURA Akira;CALPA Marcela;ROSERO-NAVARRO Nataly Carolina;TADANAGA Kiyoharu;西山鈴音,長谷川大輔,渡部宇子,本間裕大 - 通讯作者:
西山鈴音,長谷川大輔,渡部宇子,本間裕大
MIURA Akira的其他文献
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{{ truncateString('MIURA Akira', 18)}}的其他基金
Low-temperature synthesis of oxynitrides for development of new functional materials
低温合成氮氧化物开发新型功能材料
- 批准号:
17H04950 - 财政年份:2017
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Young Scientists (A)
Development of new low-temperature synthesis method for nitrides
氮化物低温合成新方法的开发
- 批准号:
25820330 - 财政年份:2013
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
A Study on Building Systems of Browsing and Analyzing Multi-Dimensional Space Scientific Data for Educational Outreach.
为教育推广构建多维空间科学数据浏览和分析系统的研究。
- 批准号:
22500958 - 财政年份:2010
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The mechanisms of the anti-hypertensive benefits of exercise in relation to the link between acute and chronic effects
运动抗高血压作用与急性和慢性效应之间联系的机制
- 批准号:
21500689 - 财政年份:2009
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
A theoretical study of magnetohydrodynamic instabilities in non-rotating and rotating magnetospheric plasmas
非旋转和旋转磁层等离子体中磁流体动力学不稳定性的理论研究
- 批准号:
20540436 - 财政年份:2008
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The relation of leg venous function and structure to orthostatic hypotension in humans
腿部静脉功能和结构与人体直立性低血压的关系
- 批准号:
18500554 - 财政年份:2006
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of integrated Analysis System for Space and Astronomical Science combined with Mass Database
结合海量数据库的空间天文科学综合分析系统开发
- 批准号:
16300037 - 财政年份:2004
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study of magnetohydrodynamic instabilities in high-β plasmas in the magnetosphere by theory and modelling
通过理论和模型研究磁层高β等离子体中的磁流体动力学不稳定性
- 批准号:
14540414 - 财政年份:2002
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Theory and modeling of hydromagnetic instabilities
磁流体不稳定性的理论和建模
- 批准号:
09640529 - 财政年份:1997
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Modeling of the Hydromagnetic Instability
磁流体不稳定性建模
- 批准号:
06640566 - 财政年份:1994
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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