ドロップジャンプ動作中における体幹の筋活動および腹腔内圧の変化  [in Japanese] CHANGES IN INTRA-ABDOMINAL PRESSURE AND TRUNK ACTIVATION DURING DROP JUMP  [in Japanese]

    • 河端 将司 KAWABATA MASASHI
    • 鹿屋体育大学大学院体育学研究科 Graduate School of Physical Education, National Institute of Fitness and Sports in Kanoya
    • 島 典広 [他] SHIMA NORIHIRO
    • 鹿屋体育大学スポーツパフォーマンス系 Department of Sports Performance, National Institute of Fitness and Sports in Kanoya

    • 西薗 秀嗣 NISHIZONO HIDETSUGU
    • 鹿屋体育大学スポーツトレーニング教育研究センター Research Center for Training Science and Applied Physiology, National Institute of Fitness and Sports in Kanoya

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Abstract

This study examined changes in intra-abdominal pressure and trunk activation during drop jump and the influence of those factors on performance. Intra-abdominal pressure (IAP) and surface electromyography (EMG) activity from the rectus abdominis (RA), transversus abdominis-internal oblique (TrA-IO) and erector spinae (ES) muscles were measured in seven males (22.3±1.0 years) during double-leg drop jumps from a 0.4m height. Development of IAP (ΔIAP) and normalized rmsEMGs were calculated in the pre-contact, impact and push-off phases, after divided by ground reaction force data. TrA-IO activation which occurred prior to ground contact were the earliest and strongest compared to other muscles activation during each phase. ΔIAP during the impact phase coincided with the peak vertical force. There were significant positive correlations between ΔIAP, TrA-IO activation and vertical force per weight. In addition, the contact time correlated negatively with ΔIAP, TrA-IO activation and vertical force per weight. These findings indicate that ΔIAP and TrA-IO activation may contribute to trunk stability and efficient landing during double-leg drop jump.

Journal

Japanese Journal of Physical Fitness and Sports Medicine   [List of Volumes]

Japanese Journal of Physical Fitness and Sports Medicine 57(2), 225-233, 2008-04-01  [Table of Contents]

The Japanese Society of Physical Fitness and Sport Medicine

References:  38

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Codes

  • NII Article ID (NAID) :
    110006655082
  • NII NACSIS-CAT ID (NCID) :
    AN00137986
  • Text Lang :
    JPN
  • Article Type :
    ART
  • ISSN :
    0039906X
  • NDL Article ID :
    9473177
  • NDL Source Classification :
    ZF21(教育--体育)
  • NDL Call No. :
    Z7-301
  • Databases :
    CJP  NDL  NII-ELS  J-STAGE