Journal of Electromyography and Kinesiology
Volume 19, Issue 6 , Pages 1064-1070, December 2009

EMG activity of hip and trunk muscles during deep-water running

  • Koichi Kaneda

      Affiliations

    • Keio University Shonan Fujisawa Campus, 5322 Endo, Fijisawa-city, Kanagawa 252-8520, Japan
    • Corresponding Author InformationCorresponding author. Tel.: +81 466 49 3494; fax: +81 466 47 5041.
    • ,
  • Daisuke Sato

      Affiliations

    • Preparatory Office of the Founding of Tsukuba Pharmaceutical University, 1858-9 Shigeta, Chikusei-city, Ibaraki 308-0811, Japan
    • Tel.: +81 296 21 0100; fax: +81 296 21 1201.
    • ,
  • Hitoshi Wakabayashi

      Affiliations

    • Faculty of Design, Kyushu University, 4-9-1, Shiobaru, Minami-ku, Fukuoka-city, Fukuoka 815-8540, Japan
    • Tel.: +81 92 553 2735; fax: +81 92 553 4302.
    • ,
  • Takeo Nomura

      Affiliations

    • Graduate School of Comprehensive Human Science, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba-city, Ibaraki 305-8574, Japan
    • Tel.: +81 298 53 6336; fax: +81 298 53 6336.

Received 8 April 2008; received in revised form 4 November 2008; accepted 5 November 2008. published online 19 December 2008.

Abstract 

The present study used synchronized motion analysis to investigate the activity of hip and trunk muscles during deep-water running (DWR) relative to land walking (LW) and water walking (WW). Nine healthy men performed each exercise at self-determined slow, moderate, and fast paces, and surface electromyography was used to investigate activity of the adductor longus, gluteus maxima, gluteus medius, rectus abdominis, oblique externus abdominis, and erector spinae. The following kinematic parameters were calculated: the duration of one cycle, range of motion (ROM) of the hip joint, and absolute angles of the pelvis and trunk with respect to the vertical axis in the sagittal plane. The percentages of maximal voluntary contraction (%MVC) of each muscle were higher during DWR than during LW and WW. The %MVC of the erector spinae during WW increased concomitant with the pace increment. The hip joint ROMs were larger in DWR than in LW and WW. Forward inclinations of the trunk were apparent for DWR and fast-paced WW. The pelvis was inclined forward in DWR and WW. In conclusion, the higher-level activities during DWR are affected by greater hip joint motion and body inclinations with an unstable floating situation.

Keywords: Deep-water running, Electromyography, Hip and trunk muscles activities, Motion analysis

To access this article, please choose from the options below

Login to an existing account or Register a new account.

  • Purchase this article for 31.50 USD (You must login/register to purchase this article)

    Online access for 24 hours. The PDF version can be downloaded as your permanent record.

  • Subscribe to this title

    Get unlimited online access to this article and all other articles in this title 24/7 for one year.

  • Claim access now

    For current subscribers with Society Membership or Account Number.

  • Visit SciVerse ScienceDirect to see if you have access via your institution.
 

PII: S1050-6411(08)00186-7

doi:10.1016/j.jelekin.2008.11.001

Journal of Electromyography and Kinesiology
Volume 19, Issue 6 , Pages 1064-1070, December 2009

Article Tools

* Image Usage & Resolution