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  • The effects of whole body vibration on the neuromuscular system

    Creator:
    Hong, Junggi
    Abstract:
    Recently, changes in human performance following whole-body vibration (WBV) training have been attributed to enhanced neuromuscular function. However, the exact neural and muscular mechanisms responsible for these changes remain less understood. The purpose of this study was to evaluate the acute and chronic effects of whole body vibration on the...
    Resource Type:
    Dissertation
    Full Text:
    A. Hoffman Recently, changes in human performance following whole-body vibration

  • The effects of static and dynamic stretching on reaction time and performance in a countermovement jump

    Creator:
    Perrier, Erica Taylor
    Abstract:
    PURPOSE: The purpose of this research was to quantify the effects of a warm-up with static or dynamic stretching on countermovement jump height, reaction time, muscle onsets for tibialis anterior (TA) and vastus lateralis (VL), and low back/ hamstring flexibility. METHODS: Twenty one recreationally-active males (24.4 ± 4.5 yrs), recruited...
    Resource Type:
    Masters Thesis
    Full Text:
    :1397-1402, 2004. 4. Behm, D. G., E. E. Bradbury, A. T. Haynes, J. N. Hodder, A. M. Leonard, and N

  • A 60 Second Exposure of Whole Body Vibration has no Effect on Muscular Strength or Vertical Jump Height.

    Creator:
    Welch, John D.
    Abstract:
    For more than 30 years, researchers have investigated the effects of whole body vibration (WBV) platforms on athletic performance. WBV is a modality in which an individual stands on a vibrating platform to obtain performance effects. Frequency and amplitude of the vibration are the commonly adjusted parameters. The use of...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________________________________ Mark Hoffman For more than 30 years, researchers have investigated the effects of whole

  • Digit Span Ratio, Joint Laxity, and Muscular Strength as Predisposing Factors for Female ACL Injuries

    Creator:
    Cohen, Stephanie M.
    Abstract:
    Females more commonly injure their anterior cruciate ligament (ACL) in athletics than do males. Despite many studies researching anatomical, neuromuscular, and hormonal causes, the predisposing risk factors behind this occurrence are currently unknown. This study compared 5 females who had injured their ACL to 15 healthy females concentrating on three...
    Resource Type:
    Honors College Thesis
    Full Text:
    : ________________________________________________ Mark Hoffman Key Words

  • Spinal control mechanisms in elite level, explosively-trained athletes from two different sports

    Creator:
    Zidek, Marie E.
    Abstract:
    Mechanisms of motor control and function are interesting to those from the medical, athletic training and sports performance professions primarily during the development of conditioning and rehabilitation programs. The aim of this study was to assess spinal control mechanisms in two groups of explosively trained, female athletes from a NCAA...
    Resource Type:
    Masters Thesis
    Full Text:
    MARIE E ZIDEK, MARK A HOFFMAN Sports Medicine/ Disabilities Research Laboratory, Department of

  • Spinal reflex control in healthy and ACL-injured women during a distracting task

    Creator:
    Perrier, Erica Taylor
    Abstract:
    Female athletes exhibit three- to six-fold greater incidence of noncontact anterior cruciate ligament (ACL) injury relative to their male counterparts. The increased risk appears to stem from interactions between several risk factors, that can roughly be categorized as anatomic, biomechanical, hormonal, and neuromuscular. Neuromuscular risk factors have recently gained a...
    Resource Type:
    Dissertation
    Full Text:
    under various conditions can Stimulus Intensity R e fl e x M a g n it u d e Stimulus Intensity

  • Numerical solution of Hodgkin-Huxley's partial differential system for nerve conduction

    Creator:
    Morton, John Baird
    Abstract:
    A numerical solution to Hodgkin and Huxley's partial differential system for the propagated action potential is presented. In addition a three dimensional demonstration of the absolute refractory period is given. Lastly, theoretical evidence supporting Rushton's hypothesis is presented.
    Resource Type:
    Masters Thesis
    Full Text:
    - merical solution proceeds as follows. Given starting conditions at t = 0 (i. e. V. 0, n. 0, mi, 0, and

  • The neuromuscular effects of a long-term static stretching program on the human soleus

    Creator:
    Hayes, Bradley T.
    Abstract:
    The purpose of this research was to evaluate the effects of a long-term static stretching program on flexibility and spinal reflexes in the human soleus muscle. Day-to-day reliability over two days of H-reflex gain (Hslp/Mslp) and pre-synaptic inhibition of spinal reflexes in the human soleus was measured in an initial...
    Resource Type:
    Dissertation
    Full Text:
    Redacted for Privacy Redacted for privacy CONTRIBUTION OF AUTHORS Dr. Mark A. Hoffman was involved in

  • Spinal control differences between the sexes

    Creator:
    Johnson, Samuel T.
    Abstract:
    Despite years of research, females continue to have a higher incidence of non-contact ACL injuries. One of the major findings of this research is that males and females perform certain tasks, such as, cutting, landing, and single-leg squatting, differently. In particular, females tend to move the knee into a more...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ Mark A. Hoffman Despite years of research, females continue to have a higher incidence of

  • The effects of plyometrics on neuromuscular control

    Creator:
    Doeringer, Jeffrey R.
    Abstract:
    The purpose of this study was to determine the effects of plyometric training on both spinal and supraspinal motor control as well as the rate of torque development (RTD) in healthy active females. Thirty-one subjects were recruited to participate in the study and participated in either the training or control...
    Resource Type:
    Dissertation
    Full Text:
    : ________________________________________________________________________ Mark A. Hoffman The purpose of this study was to determine the effects of plyometric