Sports Sciences Commons^™

Effects Of Blood Flow Restriction Training On Healthy Individuals Using The (B)Strong Training System: A Randomized Controlled Trial, Mallory Rockhill

Theses and Dissertations

The purpose of the study was to examine and compare muscular fitness and subjective muscle pain between blood flow restriction (BFR) training using the (B)Strong Training System and traditional resistance training program after a 7-week intervention. Thirty-one healthy male and female young adults volunteered to participate. Participants were randomly selected into three groups: HIRES (high intensity resistance training), LIBFR (low intensity blood flow restriction training) or CON (control). All participants refrained from structured activity outside of this study for the duration of the entire study. Anthropometrics, body composition, muscular strength and endurance were measured prior to and post training. Delayed …

Assessing The Validity And Reliability Of A Freehand Tool Method For Analysis Of Ultrasound Cross-Sectional Area Images, Donald J. Marsh, Dylan Suarez, Luis Rodriguez-Castellano, Kyle Rochau, Ai Ishida, Caleb D. Bazyler

ETSU Faculty Works

No abstract provided.

Effects Of Weightlifting Training On Isometric Mid-Thigh Pull Rate Of Force Development, Dylan G. Suarez, Kristina Ushakova, Satoshi Mizuguchi, Guy Hornsby, Michael H. Stone

ETSU Faculty Works

PURPOSE: To examine the influence of three distinct training phases on isometric mid-thigh pull (IMTP) measures in well-trained weightlifters. METHODS: Pre- and post-block IMTP data from 11 collegiate weightlifters was used for analysis. The mean of the best two attempts from each athlete for measures of PF and RFD from 0-50ms, 0-100ms, 0-150ms, 0-200ms, and 0-250ms were used for comparison. In total, results from five timepoints for each of the 11 athletes were examined in order to compare the effects of the three training phases. RESULTS: A repeated measures ANOVA revealed no statistically significant (p ≥ 0.05) effects of training …

The Effects Of Stress On American Football Overhand Throw Accuracy, Cale Anderson

All NMU Master's Theses

The American overhand football throw is a highly scrutinized position because of all the different kinds of stress both physical and psychological that are put onto those players. The current study sought to develop a formula using psycho-emotional and physical variables to predict the performance of an American overhand football throw under stressful/non-stress situations. Participants were tested on two days. The stress situation is where tennis balls were thrown, and the subject did not know where they were going to throw. The non-stressed was a 3 step drop without knowing what target they were throwing at and these conditions were …

Biomechanical Adaptations To An Implemented Ramp Angle In Recreational Alpine Skiers, Stephanie R. Moore

All NMU Master's Theses

Most ski boot-binding complexes have a negative ramp angle. This angle is not regulated or reported in the alpine ski industry, but may influence skier balance and pressure control. Thus, joint coordination and center of pressure maintenance in alpine skiers (n = 19) was investigated during simulated ski squat and balance tasks with increasing binding ramp angles (0°, 1°, 2°). Greater sagittal plane center of pressure excursions were observed with ski-booted tasks compared to barefoot conditions during squats and balance simulations. Squat tasks performed on skis resulted in more uncoordinated knee-ankle movement, however, this effect was reduced with the highest …

Validity Of A Wireless Inertia Measurement Device In Quantifying Performance In Vertical Jumping Tests, Nicholas G. Anagnost, Alexandra Lates, John P. Wagle, Christopher B. Taber

Exercise Science Faculty Publications

The use of technology in sport and fitness training has rapidly become a tool for both athletes and coaches in monitoring performance variables for optimizing training stimulus and recovery (Duking, Hotho, Holmberg, Fuss, & Sperlich, 2016; Peake, Kerr & Sullivan, 2018). Wireless fitness trackers, GPS and accelerometry devices are growing in popularity with the athletic population outside of the clinical setting due to their lower cost and ease of use compared to traditional clinical measurement tools (Dellaserra, Gao & Ransdell, 2014). With the increased popularity of these devices comes the necessity to understand and validate the information collected from them …

The Effect Of Altering Body Posture And Barbell Position On The Between-Session Reliability Of Force-Time Curve Characteristics In The Isometric Mid-Thigh Pull, Stuart N. Guppy, Claire J. Brady, Yosuke Kotani, Michael H. Stone, Nikola Medic, Guy Gregory Haff

ETSU Faculty Works

Seventeen strength and power athletes (n = 11 males, 6 females; height: 177.5 ± 7.0 cm, 165.8 ± 11.4 cm; body mass: 90.0 ± 14.1 kg, 66.4 ± 13.9 kg; age: 30.6 ± 10.4 years, 30.8 ± 8.7 years), who regularly performed weightlifting movements during their resistance training programs, were recruited to examine the effect of altering body posture and barbell position on the between-session reliability of force-time characteristics generated in the isometric mid-thigh pull (IMTP). After participants were familiarised with the testing protocol, they undertook two testing sessions which were separated by seven days. In each session, the participants …

The Effect Of Altering Body Posture And Barbell Position On The Between-Session Reliability Of Force-Time Curve Characteristics In The Isometric Mid-Thigh Pull, Stuart N. Guppy, Claire J. Brady, Yosuke Kotani, Michael H. Stone, Nikola Medic, Guy Gregory Haff

Research outputs 2014 to 2021

Seventeen strength and power athletes (n = 11 males, 6 females; height: 177.5 ± 7.0 cm, 165.8 ± 11.4 cm; body mass: 90.0 ± 14.1 kg, 66.4 ± 13.9 kg; age: 30.6 ± 10.4 years, 30.8 ± 8.7 years), who regularly performed weightlifting movements during their resistance training programs, were recruited to examine the effect of altering body posture and barbell position on the between-session reliability of force-time characteristics generated in the isometric mid-thigh pull (IMTP). After participants were familiarised with the testing protocol, they undertook two testing sessions which were separated by seven days. In each session, the participants …

Effect Of A Repeated Sprint Ability Test On The Muscle Contractile Properties In Elite Futsal Players, Javier Sánchez-Sánchez, David Bishop, Jorge García-Unanue, Esther Ubago-Guisado, Enrique Hernando, Jorge López-Fernández, Enrique Colino, Leonor Gallardo

Research outputs 2014 to 2021

The aim of this study was to evaluate the effect of a repeated sprint ability (RSA) test on the contractile properties of the muscles in elite futsal players. A total of 20 elite players completed the RSA test (7 × 30 m), and the contractile response from the rectus femoris (RF) and biceps femoris (BF) of both legs were analysed pre and post through tensiomyography. There was a significant increment in 30-m times from the third sprint onwards (p < 0.05). The percent decrement in sprint ability (RSA) with respect to the first sprint was significantly higher in the last sprint. The players did not show evidence of lateral asymmetry in any of the muscle groups analysed after the RSA test (p > 0.05). Following the RSA test there was a significant reduction in the delay time (Td) in RF, a significant decrement …

Hif Prolyl Hydroxylase Inhibition Protects Skeletal Muscle From Eccentric Contraction-Induced Injury, Andrew N Billin, Samuel E Honeycutt, Alan V Mcdougal, Jaclyn P Kerr, Zhe Chen, Johannes M Freudenberg, Deepak K Rajpal, Guizhen Luo, Henning Fritz Kramer, Robert S Geske, Frank Fang, Bert Yao, Richard V Clark, John Lepore, Alex Cobitz, Ram Miller, Kazunori Nosaka, Aaron C Hinken, Alan J Russell

Research outputs 2014 to 2021

BACKGROUND: In muscular dystrophy and old age, skeletal muscle repair is compromised leading to fibrosis and fatty tissue accumulation. Therefore, therapies that protect skeletal muscle or enhance repair would be valuable medical treatments. Hypoxia-inducible factors (HIFs) regulate gene transcription under conditions of low oxygen, and HIF target genes EPO and VEGF have been associated with muscle protection and repair. We tested the importance of HIF activation following skeletal muscle injury, in both a murine model and human volunteers, using prolyl hydroxylase inhibitors that stabilize and activate HIF.

METHODS: Using a mouse eccentric limb injury model, we characterized the protective effects …

Targeted Exercise Therapy To Enhance Neural Activation, Terence Moriarty, Kelsey Bourbeau, Bryanne Bellovary, Micah Zuhl

Shared Knowledge Conference

Various types of exercise therapies, have been implemented into treatment for those suffering from psychological disorders and traumatic brain injury. The prefrontal cortex (PFC), which houses key cognitive constructs is responsive to exercise, and is commonly measured using functional near infrared spectroscopy (fNIRS). Evidence suggests that exercise mediates neural adaptation through increased blood flow and neurogenesis, which enhances neural activation leading to improved cognitive performance. However, the intensity of exercise that has the most robust impact on brain blood flow is currently unknown. Purpose. Therefore, the primary aim of the study is to compare PFC activation during cognitive tasks performed …

The Validity Of The Push Band 2.0 During Vertical Jump Performance, Jason P. Lake, Simon Augustus, Kieran Austin, Peter Mundy, John J. Mcmahon, Paul Comfort, Guy G. Haff

Research outputs 2014 to 2021

The Push Band has the potential to provide a cheap and practical method of measuring velocity and power during countermovement vertical jumping (CMJ). However, very little is known about whether it conforms to laboratory-based gold standards. The aim of this study was to assess the agreement between peak and mean velocity and power obtained from the belt-worn Push Band, and derived from three-dimensional motion capture, and vertical force from an in-ground force platform. Twenty-two volunteers performed 3 CMJ on a force platform, while a belt-worn Push Band and a motion capture system (a marker affixed to the Push Band) simultaneously …

Resistance Training Volume Load With And Without Exercise Displacement, W. Guy Hornsby, Jeremy A. Gentles, Paul Comfort, Timothy J. Suchomel, Satoshi Mizuguchi, Michael H. Stone

ETSU Faculty Works

Monitoring the resistance training volume load (VL) (sets × reps × load) is essential to managing resistance training and the recovery–adaptation process. Subjects: Eight trained weightlifters, seven of which were at national level, participated in the study. Methods: VL was measured both with (VLwD) and without (VL) the inclusion of barbell displacement, across twenty weeks of training, in order to allow for comparisons to be made of these VL calculating methods. This consisted of recording the load, repetition count, and barbell displacement for every set executed. Comparisons were made between VL and VLwD for individual blocks of training, select training …

Determining The Efficacy Of Fifa 11+ In Reducing Acl Injury In Female Soccer Players, John Hallmark

Celebration of Learning

Objective-This study aims to identify the relationship between the Fifa 11+ program and the angle of valgus deformity at the knee. Background-200,000 ACL tears are reported each year. Previous studies have linked valgus motion of the knee to an increased rate of ACL injury and females exhibit a 4-6x increased risk for ACL injury. Fifa 11+ has shown promise in studies done on professional soccer teams yet remains untested in a younger population. Methods-This prospective cohort study of 300 consented female soccer players will use Noraxon as a tool for the measurement of valgus angle at the …

Preliminary Scale Of Reference Values For Evaluating Reactive Strength Index-Modified In Male And Female Ncaa Division I Athletes, Christopher J. Sole, Timothy J. Suchomel, Michael H. Stone

ETSU Faculty Works

The purpose of this analysis was to construct a preliminary scale of reference values for reactive strength index-modified (RSImod). Countermovement jump data from 151 National Collegiate Athletic Association (NCAA) Division I collegiate athletes (male n = 76; female n = 75) were analyzed. Using percentiles, scales for both male and female samples were constructed. For further analysis, athletes were separated into four performance groups based on RSImod and comparisons of jump height (JH), and time to takeoff (TTT) were performed. RSImod values ranged from 0.208 to 0.704 and 0.135 to 0.553 in males and females, respectively. Males had greater RSImod …

The Assessment Of Swimming And Survival Skills: Is Your Programme Fit For These Purposes?, Paolo Di Paola Ba

International Journal of Aquatic Research and Education

No abstract provided.

A Journey Through Mindset Of The Ice And The Adventure To Cape Horn: Ireland Medal Ceremony Invited Address, Nuala Moore

International Journal of Aquatic Research and Education

No abstract provided.

Understanding The Challenges Facing The First Responder In Water-Based Incidents: Workshop, Patrick Buck Ph.D., Remt

International Journal of Aquatic Research and Education

No abstract provided.

Investigating Drowning Deaths In The United Kingdom, Paul Anderson Chief Superintendent

International Journal of Aquatic Research and Education

No abstract provided.

Investigating Drownings In Northern Ireland, Rory Hoy Inspector

International Journal of Aquatic Research and Education

No abstract provided.