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Articles 1 - 7 of 7
Full-Text Articles in Medicine and Health Sciences
Voluntary Hypoventilation At Low Lung Volume (Vhl) During Strength And Conditioning Training Increases Anaerobic Performance: A Pilot Study, Zachary Taylor Hundley
Voluntary Hypoventilation At Low Lung Volume (Vhl) During Strength And Conditioning Training Increases Anaerobic Performance: A Pilot Study, Zachary Taylor Hundley
Masters Theses
To determine whether a VHL protocol implemented into an already existing strength and conditioning program could improve anaerobic conditioning more efficiently within the military population. Six active duty males completed a seven-week training cycle with VHL protocols implemented on each training day (2-4 days/week). Before (Pre) and after (Post) protocol implementation, the participants performed a multi-stage 20-m shuttle run test (MSRT). After incorporating VHL, participants significantly improved their MRST scores by an average of 50.3%. Additionally, Body Oxygen Level Test (BOLT) scores were improved across the duration of the study. This study showed employing VHL can improve anaerobic performance in …
Head-Trunk Coordination And Coordination Variability During Anticipated And Unanticipated Sidestepping, Sam Zeff
Masters Theses
INTRODUCTION: Sensory systems within the head provide us with rich perceptual information and may require complex control of the head during locomotion when changing direction. Head position in space is maintained by head on trunk motion as well as lower extremity kinematic modifications, such as increased knee flexion and increased stance time in order to facilitate shock attenuation and reduce vertical CoM displacement. It has been established that the body organizes its degrees of freedom of the trunk, pelvis and lower extremities differently during anticipated and unanticipated sidestepping, which raises the question of how these modifications affect head control during …
Cadence As An Indicator Of The Walk-To-Run Transition, Colleen Chase
Cadence As An Indicator Of The Walk-To-Run Transition, Colleen Chase
Masters Theses
Humans naturally select a point at which to transition from walking to running when gradually increasing locomotor speed. This point is known as the walk-to-run transition (WRT). The WRT is traditionally expressed in terms of speed and is known to occur within a close range of 2.1 m/s, which is an accepted heuristic (i.e., empirically based, rounded) threshold value. Very little research exists defining the WRT in terms of cadence (steps/min) despite the fact that spatial temporal aspects of gait underlying the WRT include this parameter. Preliminary evidence suggests that the WRT may be associated with a cadence of 140 …
A Comparison Of Vertical Ground Reaction Forces In Single-Leg Jump Take-Offs And Double-Leg Jump Take-Offs In Indoor Collegiate Volleyball Players, Margaret Elisabeth Latchford, Maggie Mcdermott, Austin Deshner, Moroni De Moors, Will W. Peveler
A Comparison Of Vertical Ground Reaction Forces In Single-Leg Jump Take-Offs And Double-Leg Jump Take-Offs In Indoor Collegiate Volleyball Players, Margaret Elisabeth Latchford, Maggie Mcdermott, Austin Deshner, Moroni De Moors, Will W. Peveler
Masters Theses
The purpose of this study was to determine if differences in vertical ground reaction forces (vGRFs) exist between single-leg take-off approaches (SL) and double-leg take-off approaches (DL) and if sex or positional differences existed in vGRFs in SL- or DL-style approaches. It was hypothesized that DL jumps would generate greater vGRFs, males would generate greater vGRFs in both styles, and middle blockers would have higher SL vGRFs while pin hitters would have higher DL vGRFs. Nine collegiate volleyball players (4 female; 5 male) (age: 20.44 ± 1.42 years; height: 186.02 ± 6.44 cm; body mass: 78.21 ± 10.63kg; body fat: …
Lower Limb Force Asymmetries During Landing And Jumping Exercises, Simon Cone
Lower Limb Force Asymmetries During Landing And Jumping Exercises, Simon Cone
Masters Theses
Significant asymmetries can exist between the lower limbs’ force production during the take-off phase of bilateral jumping exercises. Some studies have indicated that similar asymmetries can exist during the landing phase as well. It has not been demonstrated if the magnitude and/or direction of this imbalance is alike during the landing (L) and take-off (TO) phase of a jumping exercises. The main purpose of this study was to determine if there is a difference in the asymmetry that occurs during the L and TO phases. In order to quantify the degree and describe the direction (left. vs. right) of the …
Interval Training Using The Lactate Retention Method: A Pilot Study, Tyler M. Dundore
Interval Training Using The Lactate Retention Method: A Pilot Study, Tyler M. Dundore
Masters Theses
Interval training (IT) is used to improve aerobic capacity and increase tolerance to lactate. Few studies to date have focused on trapping lactate in the muscles during recovery periods of IT, a method called “lactate retention”, or LR. PURPOSE: To determine if LR can produce greater improvements in lactate threshold (LT) and a faster rate of change in blood lactate concentration ([rΔBL]) compared to IT with active recovery (AR). METHODS: Ten cross-trained subjects (age 23.3 ± 4.7 years) participated; each came to the lab twice per week for the duration of the study. Visit 1 included an LT test to …
Single Sport Specialization: Ncaa Di Collegiate Student Athlete Perceptions, Jordyn Blood
Single Sport Specialization: Ncaa Di Collegiate Student Athlete Perceptions, Jordyn Blood
Masters Theses
This study seeks to understand the experience and perception of current, NCAA DI athletes with regard to sport specialization. By learning more about their level of specialization prior to their life as an NCAA DI athlete, as well as their perception on the importance of specialization, this study seeks to contribute to the growing body of literature in sport specialization. Specifically, this study will help inform aspiring athletes, coaches and parents about the role and perceptions of sport specialization in today's elite level athlete. Using paper surveys, the perceptions of 138 current 2019-2020 season NCAA DI athletes at a mid-major …