Search Constraints

Start Over
Filtering by: Creator Hoffman, Kriss A. Remove constraint Creator: Hoffman, Kriss A.

Search Results

  • A beta dosimeter and spectrometer utilizing plastic scintillators and a large-area avalanche photodiode

    Creator:
    Kriss, Aaron A.
    Abstract:
    The purpose of this research was to develop and test a radiation detector to perform beta dosimetry and spectroscopy. The detector utilizes plastic scintillator volumes to produce scintillation light in proportion to the amount of energy deposited in them, and a large-area avalanche photodiode to convert the light to electrical...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Aaron A. Kriss for the

  • 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:
    Mark A. Hoffman PURPOSE: The purpose of this research was to quantify the effects of a warm-up

  • 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:
    presented on May 2, 2016. Title: A 60 Second Exposure of Whole Body Vibration has no Effect on Muscular

  • 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

  • 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

  • A comparison of two neuropsychological concussion assessment batteries

    Creator:
    Padilla, Diana M.
    Abstract:
    Objectives: To compare the neuropsychological concussion assessment testing batteries of the Standardized Assessment of Concussion (SAC™) test and the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT™) test and determine if the tests measure similar neuropsychological functions as well as determine the test-retest reliability of the pre and post season measures...
    Resource Type:
    Masters Thesis
    Full Text:
    Neuropsychological Concussion Assessment Batten es Abstract approved: Mark A. Hoffman Objectives: To compare the

  • 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:
    Abstract approved: ________________________________________________________ Mark A. Hoffman

  • 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

  • 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

  • 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