慢性腰痛症患者に対する体幹筋の表面筋電図評価  [in Japanese] Evaluation of contraction pattern of trunk muscles in patients with chronic low back pain using surface electromyography  [in Japanese]

Access this Article

Author(s)

Abstract

腰椎椎間板ヘルニアと診断された慢性腰痛症患者2名に対し,歩行時における体幹筋の筋活動について表面筋電図を測定し,健常群と比較,検討した.症例Aでは内腹斜筋の筋活動は歩行周期を通して平坦化していた.また,腰背筋筋活動パターンは立脚期中期,遊脚期にも筋活動が増加し,多相性を呈した.常時腰背筋の筋緊張を高めることが脊柱可動性低下の一要因であると考えられた.症例Bにおける歩行時の腰背筋筋活動パターンは左側多裂筋,最長筋,腸肋筋ともに多相性パタ-ンを呈した.運動療法後は最長筋,腸肋筋,多裂筋ともに健常群のパターンに類似したが,多裂筋は立脚期中期および遊脚期中期の筋活動増大が残存した.ラセーグ徴候陽性,SLR角に変化を認めなかったことからブレーキング作用が生じたと考えられる.慢性腰痛症患者に対して表面筋電図を用いて問題点を明確にすることが運動療法の内容,治療効果判定を判断するために重要であると考える.

We examined the difference for the muscle activity patterns of the trunk muscles during gait between the healthy persons and two chronic low back pain patients diagnosed lumbar disc herniation using electromyography. In the patient A, the characteristics of the muscle activity pattern in the obliquus internal abdominis had low activity at all times through gait cycle. The muscle activity patterns in the paravertebral muscles were characterized by high activity at the middle stance phase and swing phase. The high activity in the paravertebral muscles during gait correlated to the restriction of the ROM in the spine. In the patient B, the characteristics of the paravertebral muscles had flat activity in comparison with healthy persons. After the therapy, the muscle activity pattern in the longissimus and iliocostalis were approximately normalized. However the multifidus remained high activity at the swing phase during gait. Lasegue sign positive and restricted SLR (Straight Leg Raising) angle correlated to the knee extension and the hip flexion at the swing phase. Therefore the high activity in the multifidus at the swing phase may avoid redundant nerve extension. The evaluation of the trunk function using surface electromyography was importance for the chronic low back pain patients.

Journal

  • The Journal of Japanese Society of Lumbar Spine Disorders

    The Journal of Japanese Society of Lumbar Spine Disorders 14(1), 122-128, 2008

    The Japanese Society of Lumbar Spine Disorders

Codes

  • NII Article ID (NAID)
    130000137355
  • NII NACSIS-CAT ID (NCID)
    AA11488721
  • Text Lang
    JPN
  • ISSN
    1345-9074
  • NDL Article ID
    9715169
  • NDL Source Classification
    ZS35(科学技術--医学--外科学・整形外科学・麻酔学)
  • NDL Call No.
    Z19-B834
  • Data Source
    NDL  J-STAGE 
Page Top