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Descending modulations of stretch reflex gain in arm muscle

Research Project

Project/Area Number 13680036
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 体育学
Research InstitutionSchool of Health Sciences, Nagasaki University

Principal Investigator

FUNASE Kozo  School of Health Sciences, Nagasaki University, Professor, 医学部, 教授 (40173512)

Co-Investigator(Kenkyū-buntansha) HIGASHI Toshio  School of Health Sciecs Ngaki University, Research Assistant, 医学部, 助手 (40244090)
Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
KeywordsStretch reflex / Gain control / H-reflex / Posture / Arm muscle / Spasticity
Research Abstract

It has been reported that the soleus H-reflex is smaller during standing than sitting. This could be the result of modulation the stretch reflex gain of soleus by descending pathways in these different postures. The gain of the soleus stretch reflex is also modulated during locomotion. The neural mechanism responsible for these changes is thought to involve modulation of presynaptic inhibition of Ia terminals on spinal motoneurons. Although the soleus H-reflex is less during standing than during sitting in normal subjects, in patients with spasticity, the arm muscle tone is sometimes seen clinically to increase during standing. This observation suggests that different mechanisms underlie the posture-related modulation of the stretch reflex in arm compared with leg muscles. To explore this hypothesis, we examined the modulation of H-reflexes evoked in both soleus and flexor carpi radialis (FCR) during sitting and standing respectively. Seventeen normal subjects and ten hemiplegic patien … More ts participated in this study. H-reflexes were without background EMG in order to minimise muscle afferent feedback. H-reflexes were also recorded during standing in the soleus with the accompanying background EMG. The amplitudes of H-refelxes were expressed as their size to the maximal M-response in each posture.
In the normal subjects, soleus H-reflex were decreased during standing compared with sitting when no background EMG. When recorded during standing with the accompanying background muscle activity, unstable changes were observed in the soleus H-reflex. The H-reflex in FCR changed in a variable manner between sitting and standing in normals. However, in eight out of ten hemiplegic patients, the FCR H-reflexes recorded from the spastic side were increased during standing compared with sitting. Taking into account the responses in the absence of background EMG, the differences in posture-related modulations of H-reflex between soleus and FCR probably depend on differences in descending control of their respective spinal motoneuro pools. In the presence of background EMG, i.e., with increased muscle afferent feedback, both the muscle afferents and the descending patheway that affect motoneuron excitability caused unstable changes in soleus H-reflexes between sitting and standing. On the spastic side of the hemiplegic patients, the descending excitation to FCR is probably increased during standing which leads the increases in these H-reflexes compared with normal subjects. And this modulation is achieved by the presynaptic inhibition of Ia synapses, assessed by D1 method. These results suggest that posture-related modulation of stretch reflex gain in arm and leg muscles is subject to different descending control onto the presynaptic inhibition of Ia synapses. Less

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (34 results)

All Other

All Publications (34 results)

  • [Publications] 榊原淳: "遠隔筋収縮による運動細胞興奮性の促通効果-収縮強度および収縮側による違い-"作業療法. 20. 45-51 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Funase K, et al.: "Patterns of muscle activation in human hopping"European Journal of Applied Physiology. 84. 503-509 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 田平隆行: "遠隔筋収縮が運動野錐体路ニューロン興奮性に及ぼす影響-促通手技の理論的根拠に関する基礎的研究-"作業療法. 20. 465-471 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Higashi T, et al.: "Motoneuron pool excitability of hemiplegic patients : Assessing recovery stages by using H-reflex and M-response"Archives of Physical Medicine and Rehabilitation. 82. 1604-1610 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 船瀬広三: "ヒトの運動ニューロン興奮性の評価とその応用"体育学研究. 46. 597-605 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Funase K, et al.: "Posture-related modulation of H-reflexes in arm and leg muscles in normal and hemiplegic subjects"Abstract, XXXIV IUPS Official Satellite Meeting, "Movement and Sensation", Cairns, Australia. 123 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 船瀬広三: "ヒトの脊髄運動ニューロン興奮性の評価とその運動制御研究への応用"運動生理学雑誌. 9. 1-19 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 稲田剛久: "足関節底屈・背屈による対側ヒラメ筋運動ニューロン興奮性への促通効果"理学療法学. 29. 123-127 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sakakibara A, et al.: "Facilitation of the motoneuron excitability induced by remote muscle contraction"Abstract, XIII WFOT World Congress of Occupational Therapist, 2002, Stockholm, Sweden. 65 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Higashi T, et al.: "Motoneuron pool excitability of the hemiplegic patients assessed by the Hslp/Mslp"Abstract, XIII WFOT World Congress of Occupational Therapist, 2002, Stockholm, Sweden. 64 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sakakibara A, Higashi T, Funase K, Tabira T, and Sakai K: "Facilitation of the motoneuron excitability induced by the remote muscle contraction -Effect of the intensity and the laterality of the muscle contraction-"The Journal of Japanese Association of Occupational Therapists. 20. 45-51 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Funase K, Higashi T, Sakakibara A, Imanaka K, Nishihira Y and Miles TS: "Patterns of muscle activation in human hopping"European Journal of Applied Physiology. 84. 503-509 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tabira T, Kusano K, Higashi T, Sakakibara A, and Funase K: "Facilitation of the motor cortex excitability induced by the remote muscle contraction"The Journal of Japanese Association of Occupational Therapists. 20. 465-471 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Higashi T, Funase K, Kusano K, Tabira T, Harada. N, Sakakibara A, and Yoshimura. T: "Motoneuron pool excitability of hemiplegic patients : Assessing recovery stages by using H-reflex and M-response"Archives of Physical Medicine and Rehabilitation. 82. 1604-1610 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Higashi T and Funase K: "Pathophysiological mechanisms underlying spasticity and objective evaluation for spasticity"Journal of Investigation for Physical Therapy. 4. 1-7 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Funase K: "New approach for evaluation of spinal motoneuron pool excitability and its application"Japanese Journal of Physical Education. 46. 597-605 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Funase K: "Evaluation of the spinal motoneuron pool excitability and its application to the human motor control research"Journal of Exercise and Sports Physiology. 9. 1-19 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Inada T, Funacoshi K, Higashi T, Sakakibara A, Ohki S, and Funase K: "Facilitation of the contralateral soleus motoneuron excitability induced ankel flexion"Journal of the Japanese Physical Theraphy Association. 29. 123-127 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 榊原 淳: "遠隔筋収縮による運動細胞興奮性の促通効果-収縮強度および収縮側による違い-"作業療法. 20. 45-51 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Funase K, et al.: "Patterns of muscle activation in human hopping"European Journal of Applied Physiology. 84. 503-509 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 田平隆行: "遠隔筋収縮が運動野錐体路ニューロン興奮性に及ぼす影響-促通手技の理論的根拠に関する基礎的研究-"作業療法. 20. 465-471 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Higashi T, et al.: "Motoneuron pool excitability of hemiplegic patients : Assessing recovery stages by using H-reflex and M-response"Archives of Physical Medicine and Rehabilitation. 82. 1604-1610 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 船瀬広三: "ヒトの運動ニューロン興奮性の評価とその応用"体育学研究. 46. 597-605 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Funase K, et al.: "Posture-related modulation of H-reflexes in arm and leg muscles in normal and hemiplegic subjects"Abstract, XXXIV IUPS Official Satellite Meeting, "Movement and Scnsation", Cairns, Australia. 123 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 船瀬広二: "ヒトの脊髄運動ニューロン興奮性の評価とその運動制御研究への応用"運動生理学雑誌. 9. 1-19 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 稲田剛久: "足関節底屈・背屈による対側ヒラメ筋運動ニューロン興奮性への促通効果"理学療法学. 29. 123-127 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Sakakibara A, et al.: "Facilitation of the motoneuron excitability induced by remote muscle contraction"Abstract, XIII WFOT World Congress of Occupational Therapist, 2002, Stockholm, Sweden. 65 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Higashi T, et al.: "Motoneuron pool excitability of the hemiplegic patients assessed by the IIslp/Mslp"Abstract, XIII WFOT World Congress of Occupational Therapist, 2002, Stockholm, Sweden. 64 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 榊原 淳: "遠隔筋収縮による運動細胞興奮性の促通効果 -収縮強度および収縮側による違い-"作業療法. 20. 45-51 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Funase K et al.: "Patterns of muscle activation in human hopping"European Journal of Applied Physiology. 84. 503-509 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 田平隆行: "遠隔筋収縮が運動野錐体路ニューロン興奮性に及ぼす影響 -促通手技の理論的根拠に関する基礎的研究-"作業療法. 20. 465-471 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Higashi T et al.: "Motoneuron pool excitability of hemiplegic patients : Assessing recovery stages by using H-reflex and M-response"Archives of Physical Medicine and Rehabilitation. 82. 1604-1610 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 船瀬広三: "ヒトの運動ニューロンの興奮性の評価とその応用"体育学研究. 46. 597-605 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Funase K et al.: "Posture-related modulation of H-reflexes in arm and leg muscles in normal and hemiplegic subjects"Abstract, XXXIV IUPS Official Satellite Meeting, "Movement and Sensation", Cairns, Australia. 123 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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