Kinesiology Commons^™

Acute Ingestion Of L-Arginine Alpha-Ketoglutarate Fails To Improve Muscular Strength And Endurance In Rotc Cadets, Benjamin Wax, Jerry J. Mayo, Laura A. Hilton, Harris C. Mareio, Justin D. Miller, Heather E. Webb, Brian Lyons

International Journal of Exercise Science

International Journal of Exercise Science 6(2) : 91-97, 2013. L-Arginine Alpha-Ketoglutarate (AAKG) is purported to stimulate the release of nitric oxide, and is suggested to facilitate muscular performance by increasing blood flow and increase oxygen and nutrient delivery to the working muscle. However, the ergogenic benefit of AAKG during resistance exercise has not been established. Therefore the purpose of this study was to investigate the effects of acute AAKG ingestion in active ROTC Cadets on measures of one-repetition maximal strength (1RM) and muscular endurance. Nineteen apparently healthy males ingested either AAKG (3 g) or a placebo 45 minutes prior to …

Examination Of Injury In Female Gaelic Football, Justin Brown, Charilaos Papadopoulos, Robert Pritchett

International Journal of Exercise Science

International Journal of Exercise Science 6(2) : 98-105, 2013. To examine the relationship between body mass index and injury as well as examine injury according to playing position. In addition we sought to describe injury as it pertains to female Gaelic football. Data was collected using an online questionnaire. Archived data was also collected from a ladies Gaelic football team located in Washington, USA. Respondents included 74 recreationally trained female Gaelic footballers aged 15 – 45 years and a playing experience of 1 – 24 years. Respondents were asked to recall injuries that resulted from participation in Gaelic football. A …

Gender Differences In Frontal Plane Lower Extremity Kinetic Variability During Landing, Andrew Nordin

Interdisciplinary Research Scholarship Day

Investigations of human movement variability have been used as a
means of exploring neuromotor functioning, where performance variability is
thought to provide the system with flexibility and a mechanism for adaptation to
movement repetition [1,2,4,6]. Operationally, variability has been considered to
fall within optimal limits (Figure 1), while excessively high or low variability has
been implicated in injury susceptibility [1,2,4,6]. Landing has been explored
due to a high incidence of injury in athletic performance, as well as the ability
to easily control task demands through increases in landing height [3,4].
The purpose of this investigation was to evaluate changes in …

Examining Lower Extremity Range Of Motion And Movement Variability Chages Due To Focus Of Attention During Landing, Andrew Nordin, Janet Dufek

Interdisciplinary Research Scholarship Day

Attentional focus (AF) has been explored among a variety of motor skills providing evidence that external AF promotes automaticity and enhanced performance [6]. External focus of attention is distinguished from internal focus such that external focus is directed toward movement effect rather than body movements [6]. Movement variability provides a means of assessing functional characteristics of the neuromotor system, where normal functioning is suggested to occur within optimal limits, while excessively high or low movement variability is indicative of system dysfunction [2,4,5]. Additionally, the ability of the motor system to vary, or broadly distribute, internal loads is thought to reduce …

Kinematic Effects Of Stride Length Perturbations On System Com Horizontal Velocity During Locomotion, Josh Bailey, Andrew Nordin, Janet Dufek, D. Lee

Interdisciplinary Research Scholarship Day

PURPOSE: To investigate the kinematic effect on the systems’ center of mass horizontal velocity in response to stride length perturbations. METHODS: Twelve healthy adults (23.1±7.71 yrs; 1.69±0.1 m; 66.82±12.6 kg; leg length 894.7±66.1 mm) performed 5 trials of preferred speed walking (PW) and running (PR)followed by 5 stride length perturbations based on percentages of leg length (60%, 80%, 100%, 120% and 140%). 3D kinematic analysis was completed using a 12-camera infrared motion capture system (Vicon, 200hz). Dependent variables computer for each condition included: center of mass horizontal velocity at the highest vertical position (COMHVhi) and at the lowest vertical position …

Step Length Perturbations Alter Variations In Center Of Mass Horizontal Velocity, Josh Bailey, Andrew Nordin, D. Lee, Janet Dufek

Interdisciplinary Research Scholarship Day

PURPOSE: The purpose of the study was to investigate the effects of SL perturbations on system COM forward velocity (vx) during walking gait. METHODS: Eight healthy adults (23.5±3.6 yrs; 1.72±0.18 m; 73.11±15.29 kg) performed 5 trials of preferred speed walking (PW) and running (PR) followed by 5 stride length perturbations based on percentages of leg length (LL: 60%, 80%, 100%, 120% and 140%). 3D kinematic analysis was completed using a 12-camera infrared motion capture system (Vicon MX T40-S, 200Hz). Data filtering and interpolation included a low pass, 4th order Butterworth filter (cutoff frequency 15Hz) and cubic (3rd order spline). Maximum …

Effects Of Shoe Outsole Design And Incline On Walking Biomechanics, Sarah Horsch, Janet Dufek

Interdisciplinary Research Scholarship Day

The purpose of the study was to examine the effects of incline at foot contact of treadmill walking between rounded outsole (ROS) and traditional outsole (TOS) shoes. A rounded outsole shoe (ROS) is specifically designed with a fulcrum under the sole so that when the mass of the body is over it, the foot is forced to roll anteriorly. Traditional ROS studies have included analyses on bipedal stance single leg standing, muscle
activity during treadmill walking, kinetics during over ground walking, and kinematics after a 6-week accommodation period. Presently, there is no research comparing a ROS and a TOS at …

Effects Of Footstrike On Low Back Posture, Shock Attenuation, And Comfort In Running, Traci L. Delgado, Emilia Kubera-Shelton, Robert R. Robb, Robbin Hickman, Harvey Wallmann, Janet Dufek

Interdisciplinary Research Scholarship Day

To determine if a change from rearfoot strike (RFS) to forefoot strike (FFS) would change lumbar lordosis, influence shock attenuation, or change comfort levels in healthy recreational/experienced runners.

Immediate Effects Of Neurodynamic Versus Muscle Stretching On Hamstring Flexibility In Subjects With Short Hamstring Syndrome, Yolanda Castellote-Caballero, Marie C. Valenza, Louie Puentedura, Cesar Fernandez-De-Las-Penas, Francisco Albuquerque-Sendin

Interdisciplinary Research Scholarship Day

To compare the effectiveness of an isolated neurodynamic sciatic sliding technique (Neurodynamic group) versus static stretching (Stretching group) in comparison to a Control group receiving a placebo intervention.

Physically Interactive Games Increase Vo2 Above Resting Metabolic Rate, Shaelee Allen, Jacob E. Barkley, Janet Dufek, Paul Hafen, Michael Jarrett, Krystina Moschella, James Navalta, Robert Rietjens, Richard Tandy, Antonio Santo

Interdisciplinary Research Scholarship Day

The purpose of this study was to determine the energy cost, beyond resting metabolic rate (RMR), of playing select games on the Nintendo Wii for 30 contiguous minutes. Physically interactive games (i.e. Basic Run and Basic Step) increase energy expenditure above resting values compared to a sedentary game (Tanks!) and therefore may help individual’s become more active. Furthermore, Basic Run and Basic Step elicited MET values of 3.9 and 3.2, respectively, which is considered moderate-intensity exercise and could be used to meet daily recommendations for physical activity.

Interactive Video Gaming Maintains Vo2 & Hr At Current Recommended Exercise Intensities For Cardiovascular Fitness, Michael Jarrett, Shaelee Allen, Jacob E. Barkley, Janet Dufek, Paul Hafen, Krystina Moschella, James Navalta, Robert Rietjens, Richard Tandy, Antonio Santo

Interdisciplinary Research Scholarship Day

The purpose of this study was to determine the energy cost of playing select games on the Nintendo Wii for 30 contiguous minutes and whether or not the physical interaction of the participant with the gaming system and subsequent physiologic intensity diminishes with playing time.

Complexity-Based Measures Inform Tai Chi's Impact On Standing Postural Control In Older Adults With Peripheral Neuropathy, Brad Manor, Lewis A. Lipsitz, Peter M. Wayne, C-K Peng, Li Li

Health Sciences & Kinesiology: Faculty Publications

Background: Tai Chi training enhances physical function and may reduce falls in older adults with and without balance disorders, yet its effect on postural control as quantified by the magnitude or speed of center-of-pressure (COP) excursions beneath the feet is less clear. We hypothesized that COP metrics derived from complex systems theory may better capture the multi-component stimulus that Tai Chi has on the postural control system, as compared with traditional COP measures.

Methods: We performed a secondary analysis of a pilot, non-controlled intervention study that examined the effects of Tai Chi on standing COP dynamics, plantar sensation, and physical …

Free-Living Experimental Sleep Conditions, Dr. James Lecheminant

Journal of Undergraduate Research

The purpose of the completed MEG from 2010 was to compare 20 obese and 20 normal- weight women under two separate free-living experimental sleep conditions (Condition 1: two consecutive nights of ≥8 hrs of sleep; Condition 2: two consecutive nights of

A Randomized-Controlled Trial Of The Effects Of Resistance Training On Body Composition, Strength, Physical Activity, And Body Satisfaction In Postpartum Women, Dr. James Lecheminant

Journal of Undergraduate Research

The purpose of this study, as submitted to the IRB, was to determine the effects of flexibility or resistance training on body composition, strength, spontaneous physical activity, cardiovascular disease risk factors, bone density, and body satisfaction, depression, health-related quality of life, and self-efficacy in postpartum women.

Establishing The Learning Effect Of Repeated Wingate Anaerobic Tests, Erin Thompson, Natalie Schaeffer, Eric T. Jones, Malcom T. Whitehead

Undergraduate Research Conference

The Wingate anaerobic test (WAnT) is a recognized and well established tool used to measure power output, muscular endurance, and fatigue. While litreature involving WAnT is plentiful, research addressing training effects within WAnT is limited. Previous studies have addressed changes in power output during repeated trials, however, to our knowledge multiple repeated trials over time to establish optimal learned effect has not been addressed. Past published studies using WAnT have incoporated various familiarization trails to account for the learned impact on performance (1, 2, 4). If an optimal number were established to produce a learned response the validity of future …

A Comparison Of Absolute, Ratio And Allometric Scaling Methods For Normalizing Strength In Elite American Football Players, B. H. Jacobson, Brennan J. Thompson, E. C. Conchola, R. Glass

Kinesiology and Health Science Faculty Publications

Division I football players exemplify the greatest range in body mass of any modern team sport. Body mass may differ by over 80 kg between the various positions. Absolute muscular strength is typically greater in larger individuals, but such data does not allow for accurate comparisons. Therefore, in order to compare the performance indices of individual groups allometric rather than ratio scaling has been suggested. The purpose of this study was to compare absolute strength, normalized ratio and allometrically scaled data among players of different size.

Getting A Grip On Memory: Unilateral Hand Clenching Alters Episodic Recall, Ruth E. Propper, Sean E. Mcgraw, Tad T. Brunyé

Department of Psychology Faculty Scholarship and Creative Works

Unilateral hand clenching increases neuronal activity in the frontal lobe of the contralateral hemisphere. Such hand clenching is also associated with increased experiencing a given hemisphere’s “mode of processing.” Together, these findings suggest that unilateral hand clenching can be used to test hypotheses concerning the specializations of the cerebral hemispheres during memory encoding and retrieval. We investigated this possibility by testing the effects of a unilateral hand clenching on episodic memory. The hemispheric Encoding/Retrieval Asymmetry (HERA) model proposes left prefrontal regions are associated with encoding, and right prefrontal regions with retrieval, of episodic memories. It was hypothesized that right-hand clenching …

Communicator, April. 2013, San Jose State University, Department Of Kinesiology

Communicator (Kinesiology)

Volume 25, Issue 4

The Effect Of A Barefoot Training Program On Running Economy And Performance, Neil Baroody

Inquiry Journal 2013

No abstract provided.

Self-Regulation Of Physical Education Teacher Education Students' Attitudes Towards Exercise And Diet, Carol Wilkinson, Keven Prusak, Tyler Johnson

Kinesiology Faculty Publications and Presentations

The purpose of this study was to assess differences in self-regulation of attitudes towards engaging in exercise and eating a healthy diet between physical education teacher education (PETE) students and general education (GE) students, and between male students and female students. Participants were university students (n = 194) at a university in the Intermountain West in the U.S. Results showed that PETE students were more autonomous in their attitudes towards exercise than other students, all female students were more controlled in their attitudes towards diet than males, and PETE females’ attitudes towards diet were more controlled than PETE males. PETE …