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Articles 1 - 8 of 8
Full-Text Articles in Life Sciences
Application Of The Actigraph Gt9x Imu For The Assessment Of Turning During Walking And Running, Robert Thomas Marcotte
Application Of The Actigraph Gt9x Imu For The Assessment Of Turning During Walking And Running, Robert Thomas Marcotte
Masters Theses
PURPOSE: The purpose of this study was to examine the use of the ActiGraph GT9X gyroscope and magnetometer for turn detection and quantifying turn degree during walking and running. METHODS: Participants (N=17) completed pivot trials, treadmill walking and running (3 to 6 mph) and different degrees of turns (i.e. 45°, 90°, 135°, and 180°) during over-ground walking and running. Pivot and walking and running activities were completed for 1-minute and 6-minutes per trial, respectively. Turn frequency was constant (10 turns/minute) across all overground walking and running trials. ActiGraph GT9X devices were placed on the left and right hips, wrists, and …
A Magnetic Resonance Compatible Knee Extension Ergometer, Youssef Jaber
A Magnetic Resonance Compatible Knee Extension Ergometer, Youssef Jaber
Masters Theses
The product of this thesis aims to enable the study of the biochemical and physical dynamics of the lower limbs at high levels of muscle tension and fast contraction speeds. This is accomplished in part by a magnetic resonance (MR) compatible ergometer designed to apply a load as a torque of up to 420 Nm acting against knee extension at speeds as high as 4.7 rad/s. The system can also be adapted to apply the load as a force of up to 1200 N acting against full leg extension. The ergometer is designed to enable the use of magnetic resonance …
Effects Of A Raised Surface On Lower Extremity Kinematics, Kinetics, And Muscle Activation During A Sidecut In Recreational Female Softball Players, Lauren Elizabeth Schroeder
Effects Of A Raised Surface On Lower Extremity Kinematics, Kinetics, And Muscle Activation During A Sidecut In Recreational Female Softball Players, Lauren Elizabeth Schroeder
Masters Theses
Noncontact anterior cruciate ligament (ACL) injury is a common sports-related injury. “High-risk” dynamic movements, such as a sidecut, have been associated with increasing the risk of noncontact ACL injury. Certain biomechanical abnormalities, specifically at the hip and knee, and neuromuscular abnormalities, such as unbalanced quadriceps-to-hamstrings activation ratios and certain activation patterns prior to initial contact and after initial contact, have also been associated with an increased likelihood of noncontact ACL injuries occurring. Approximately 78% of all NCAA Division I softball game-day injuries are classified as noncontact where there is no direct contact to a player. Internal derangement of the knee …
Effects Of Synthetic Turf Systems With And Without A Shock Pad On Lower Extremity Biomechanics During A 90° Cutting Movement With Differing Approach Velocities, Thomas Kenneth Elvidge
Effects Of Synthetic Turf Systems With And Without A Shock Pad On Lower Extremity Biomechanics During A 90° Cutting Movement With Differing Approach Velocities, Thomas Kenneth Elvidge
Masters Theses
The purpose of this study was to examine differences in lower extremity kinematics and kinetics on two different synthetic turf systems (turf only and turf with a shock pad) for two approach velocities (3.0 and 4.0 m/s) during a 90° cutting movement. Twelve recreational male American football and soccer players were recruited to perform five trials for each of the four conditions. A three-dimensional motion analysis system synchronized to a force platform was used to collect marker coordinate and ground reaction force (GRF) data respectively. A 2 x 2 (surface x approach velocity) ANOVA was used to analyze kinematic and …
Playground And Garden Physical Activity Levels In Young Children, Ashlyn Nicole Schwartz
Playground And Garden Physical Activity Levels In Young Children, Ashlyn Nicole Schwartz
Masters Theses
The purpose of this study was to determine the differences in time spent in physical activity (PA), as assessed by the amount of time spent in PA, vector magnitude (counts/15 sec.), MET values, and energy expenditure (kcal/min), between two outdoor environments (natural playground and garden) in preschool children. Participants were twenty-five children (4.4±0.7 years) enrolled in a university laboratory preschool. PA was assessed using an ActiGraph GT3X+ accelerometer that was worn on the right hip. Each child completed four randomly ordered conditions (30 min each), which included two bouts of unstructured PA on the natural playground and two bouts of …
The Influence Of Different Pre-Exercise Routines On Sprint Performance, Rok Mravljak
The Influence Of Different Pre-Exercise Routines On Sprint Performance, Rok Mravljak
Masters Theses
Sprint performance can be enhanced by interventions for short-term (acute) purposes and/or long-term purposes. Acute neuromuscular responses are usually achieved by using different pre-exercise routines at the end of the warm-up period. Recently, there have been several studies examining the effects of various pre-exercise routines on sprint performance, yet there has not been a research study designed that compared the three most commonly used pre-exercise routines in professional and recreational sports (static stretching, dynamic stretching and foam-rolling). Therefore, this study investigated and compared the results of static stretching, dynamic stretching, self-myofascial release and the control group, in order to provide …
The Effects Of Limb Dominance On Cross-Education In A Four Week Resistance Training Program, Caitlin Wend
The Effects Of Limb Dominance On Cross-Education In A Four Week Resistance Training Program, Caitlin Wend
Masters Theses
Cross-education is known as the phenomenon of strength transfer from the trained side of the body to the untrained side of the body by unilateral resistance training. Research has shown that limb dominance has an effect on the amount of strength that is gained on the untrained side. Studies have found that there is a greater cross over effect in strength from the dominant side of the body to the non-dominant side of the body than vice versa. The present study examined this effect by taking 12 college females and splitting them into three groups: dominant training, non-dominant training, and …
Exercise Is Medicine: The Exercise Habits And Attitudes Towards Exercise Counseling Of Medical Practitioners, Zoë Roberts
Exercise Is Medicine: The Exercise Habits And Attitudes Towards Exercise Counseling Of Medical Practitioners, Zoë Roberts
Masters Theses
The purpose of this research was to examine the exercise habits of practicing physicians, physician assistants (PA), and nurse practitioners (NP) in Illinois to better understand their attitudes towards counseling their patients on exercise, and to analyze the frequency that these health care providers incorporate exercise counseling into their practices. Current data has revealed the exercise habits of physicians and how it has influenced the physicians' exercise counseling behaviors. But PAs and NPs have not been included in research collectively as a medical team on the topic using exercise counseling and prescription for patient care and treatment. The research was …