Announcement

Collapse
No announcement yet.

Partial Weight Bearing Devices

Collapse
This topic is closed.
X
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Partial Weight Bearing Devices

    Zoe Robertson writes:

    From Al Finch

    I have conducted several studies using a tethering system which can
    dynamically unweight an individual during gait for any percent of their body
    weight. The device is called the Conva-Lift and it has been patented and FDA
    approved for patient use. I have over the past few years conducted studies to
    examine the effectiveness of this
    system. The studies has included partial weight bearing and its effects on
    the ground reaction forces during various degrees of tethered gait, effects
    on knee torques while performing partial squats under different unweighting
    conditions, I examined the effect of an upper body vest and how the active
    traction can reduce low back muscle activity (EMG) by 82% in only 10 minutes
    of tethered gait and the last project conducted last year
    and presented at the national ACSM conference held in Indianapolis June 2000,
    we looked at the kinematic of tethered treadmill gait (co-author Rick
    Hauser). ............ >

    *** The scientific use of this type of variable load reduction device for
    standing and treadmill research actually appears to have been pioneered
    several decades ago in the former Soviet Union by Dr Ygor Ratov at the State
    Central Institute of Sports Science in Moscow. He studied not only the
    biomechanics involved, but also the metabolic processes for different amounts
    of load reduction. Besides sporting applications, his system was used for the
    study and rehabilitation of spinal and other injured patients.

    Another larger, more sophisticated version of his system employing a small
    robot which ran in a an overhead rail above a 100 metre indoor sprint track
    was used to alter the loading and study the kinematics of sprinters at the
    State Central Institute of Physical Culture. I still have photographs of all
    of these systems which I took in Moscow more than 10 years ago, but a
    stylised diagram of some of the apparatus appears in Yessis M "Secrets of
    Soviet Sports Fitness and Training" 1987: 193-194. Other articles on Dr
    Ratov's work appear in the "Soviet Sports Review" edited by Dr Yessis.
    Possibly Dr Zatsiorsky, who is also a member of this group and who knew Dr
    Ratov personally, could supply further information on the many years of
    research done by Dr Ratov's team using this apparatus

    Dr Mel C Siff
    Denver, USA
    http://groups.yahoo.com/group/Supertraining/

    ---------------------------------------------------------------
    To unsubscribe send SIGNOFF BIOMCH-L to LISTSERV@nic.surfnet.nl
    For information and archives: http://isb.ri.ccf.org/biomch-l
    ---------------------------------------------------------------
Working...
X