Sports Sciences Commons^™

Effect Of Treadmill Surface Stiffness On The Running Economy Benefits Of A Highly-Cushioned Racing Shoe: A Pilot Study, Zane A. Thornton, Dustin P. Joubert

International Journal of Exercise Science: Conference Proceedings

Running economy (RE) is defined as the oxygen consumption (VO₂) at a given running speed. The Nike Vaporfly line of racing shoes, which includes more compliant and resilient midsole foam and a carbon-fiber plate, have been shown to improve RE during treadmill testing. Previous research suggests that RE in general is worse on treadmills with stiffer running platforms. However, it is unclear if the magnitude of the RE benefits provided by these new shoes relative to a control shoe differ based on treadmill stiffness. Given that some treadmill platforms allow more flex or compliance, this may be an …

The Effect Of Sport-Specific Resistance Training On Athletic Performance Outcomes Of College Rodeo Athletes, Kenneth L. Bowen Jr.

International Journal of Exercise Science: Conference Proceedings

Resistance training yields significant improvements to athletic performance outcomes among multiple sports. A sport-specific approach for resistance produces greater adaptation and transfer to various sports. However, few studies have examined the potential benefit of sport-specific resistance training for the sport of rodeo. PURPOSE: The aim of the current investigation was to assess the effect of sport-specific resistance training on athletic performance outcomes of rodeo athletes. METHODS: Seventeen college rodeo athletes (12 females; 5 males) participated in an 8-week, 3-days per week, sport-specific resistance training program. Muscle cross sectional area (CSA), mid-thigh pull maximal isometric voluntary contraction (MVC), height (HT), …

Factors Influencing Performance And Injury Risk In Elite Female Gaelic Team Sport Players And Future Research Directions: A Narrative Review, John Duggan, Kieran Collins, Karen Keane

Articles

Background: Sports science research in elite female Gaelic team sports has increased in recent years, but still a large disparity exists between the volume of studies involving male and female players. As a consequence of this, it is difficult for practitioners to develop an evidence-based approach when working with female players. Main body: In this review, we discuss the current research available in elite female Gaelic team sports with focus on seven specific areas including physical and physiological demands, anthropometric and performance characteristics, injury risk, nutritional considerations, and female physiology. There appears to be unique physical demands data in match …

Applied Sport Science Of Gaelic Football: A Review, Eoghan Boyle, Shane Mangan, Dominic Doran, Kieran Collins

Articles

The current review focuses on Gaelic football literature providing an insight into the physical characteristics of players, the demands of match-play, the injury profile, and nutritional considerations within the game. Since the first review of Gaelic football in 2001, an increased understanding of match dynamics has taken place through the application of movement analysis technology. In recent years, the evolution of the application of sport science provisions within Gaelic football has increased. This has resulted in researchers attempting to bridge the gap between the scientific laboratory and the applied practitioner. Overall, intermittent aerobic fitness remains important during competition, along with …

Testing, Training, And Optimising Performance Of Track Cyclists: A Systematic Mapping Review, Antony M. Stadnyk, Franco M. Impellizzeri, Jamie Stanley, Paolo Menaspà, Katie M. Slattery

Research outputs 2014 to 2021

BACKGROUND: Track cyclists must develop mental, physical, tactical and technical capabilities to achieve success at an elite level. Given the importance of these components in determining performance, it is of interest to understand the volume of evidence to support implementation in practice by coaches, practitioners, and athletes. OBJECTIVE: The aim of this study was to conduct a systematic mapping review to describe the current scale and density of research for testing, training and optimising performance in track cycling. METHODS: All publications involving track cyclist participants were reviewed from four databases (PubMed, SPORTDiscus, Academic Search Complete, Cochrane Library) plus additional sources. …

Win, Draw, Or Lose? Global Positioning System-Based Variables’ Effect On The Match Outcome: A Full-Season Study On An Iranian Professional Soccer Team, Hadi Nobari, Norbert Keshish Banoocy, Rafael Oliveira, Jorge Pérez-Gómez

Research outputs 2014 to 2021

The aim of the study was to determine the between-match and between-halves match variability of various Global Positioning System (GPS) variables and metabolic power average (MPA) in competitions, based on the match results obtained by professional soccer players over a full season. Observations on individual match performance measures were undertaken on thirteen outfield players competing in the Iranian Premier League. The measures selected for analysis included total duration, accelerations in zones (AccZ1, 2, and 3), decelerations in zones (DecZ1, 2, and 3), and MPA collected by the Wearable Inertial Measurement Unit (WIMU). The GPS manufacturer set the thresholds for the …

Effects Of Carbohydrate Mouth Rinsing Plus Ingestion On Cycling Time Trial Performance, Henry D. Gebhardt

Electronic Theses and Dissertations

Due to limited glycogen stores, carbohydrate (CHO) consumption during exercise is effective at improving performance in endurance events lasting longer than 90 minutes in duration. Recent research has established that CHO mouth rinsing may improve performance over shorter durations, independent of actual consumption. However, research is lacking in determining if an extended period of mouth rinsing has any additive benefit in conjunction with typical CHO beverage consumption over longer competition durations, where CHO ingestion/consumption is likely warranted. PURPOSE: Determine the effects of CHO mouth rinsing combined with consumption compared to CHO consumption alone on cycling performance. METHODS: Following …

Profiling Combat Sports Athletes: Competitive History And Outcomes According To Sports Type And Current Level Of Competition, Oliver R. Barley, Craig A. Harms

Research outputs 2014 to 2021

Background

This study aimed to investigate the competitive history (the age when training and competing started), training habits and patterns of winning and losing of competitive combat sports athletes across different combat sports as well as the level of competition (e.g. amateurs, state-level and elite).

Methods

Competitors (N = 298) from mixed martial arts (MMA), Muay Thai/kickboxing, boxing, Brazilian jiu-jitsu (BJJ), wrestling, judo and traditional striking sports (TSS) completed an online questionnaire.

Results

Most athletes began competing in their mid-teenage years and competing soon after except for wrestlers who began earlier. Elite athletes began training earlier than amateurs (13.75 …

Association Of Genetic Variances In Adrb1 And Ppargc1a With Two-Kilometre Running Time-Trial Performance In Australian Football League Players: A Preliminary Study, Ysabel Jacob, Ryan S. Anderton, Jodie L. Cochrane Wilkie, Brent Rogalski, Simon M. Laws, Anthony Jones, Tania Spiteri, Nicolas H. Hart

Research outputs 2014 to 2021

Abstract: Genetic variants in the angiotensin-converting enzyme (ACE) (rs4343), alpha-actinin-3 (ACTN3) (rs1815739), adrenoceptor-beta-1 (ADRB1) (rs1801253), and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PPARGC1A) (rs8192678) genes have previously been associated with elite athletic performance. This study assessed the influence of polymorphisms in these candidate genes towards endurance test performance in 46 players from a single Australian Football League (AFL) team. Each player provided saliva buccal swab samples for DNA analysis and genotyping and were required to perform two independent two-kilometre running time-trials, six weeks apart. Linear mixed models were created to account for repeated measures over time and to determine whether …

The Effects Of A Mirror On Cognitive Strategy And Performance Of A Muscular Endurance Task, Brianna M. Simmons

Electronic Theses and Dissertations

Context: Mirrors are common-place in exercise facilities, however, the effect the mirror has on cognitive strategy (i.e., where the mind’s at) and performance time has not been examined in a muscular endurance task (i.e., a wall sit). Objective: To determine, (1) the mirror’s effect on cognitive state during a wall sit to volitional exhaustion, (2) the mirror's effect on time to volitional exhaustion during a wall sit, and (3) the mirror’s effect on the participant’s rating of perceived exertion (RPE) during the wall sit. Design: Repeated measures design. Setting: Indoor exercise facility. Participants: Twenty resistance-trained Georgia Southern University Students (9 …

Current State Of Sleep-Related Performance Optimization Interventions For The E-Sports Industry, Allison Joy Brager, Guido Simonelli

Journal for Sports Neuroscience

Abstract: The e-sports industry is rapidly expanding but despite industry growth, there are existing gaps in knowledge regarding holistic and pharmacological performance enhancement strategies. The current commentary focuses on the current state of performance intervention strategies that target sleep/wake and circadian timing systems. These performance intervention strategies are based on the current state of sleep/wake health and research portfolios of Army research laboratories. The intent is to provide a foundation for future research efforts directly targeting sleep/wake and circadian timing systems in order to optimize and enhance e-sports performance at both the individual and group levels.

Efficient Method Of Delivery For Powdered Supplement Or Placebo For An Outdoor Exercise Investigation, R W. Salatto, Dustin W. Davis, Bryson Carrier, Brenna Barrios, Jacquelyn Sertic, Peyton Cater, James W. Navalta

Topics in Exercise Science and Kinesiology

• Researchers often encounter issues while attempting to deliver complete doses of a desired supplement/placebo when conducting research in outdoor environments. The problem faced by our research team was how to efficiently deliver 6.4 grams of Beta Alanine (BA) powder to subjects while conducting a hiking study on a windy trail in Southern Utah. To minimize the potential impact of the weather, and to maximize the efficiency of delivery, we determined a premixed bolus of BA contained in individual commercially available 8oz water bottles was the most efficient delivery method. The purpose of this article is to detail the development and …

Strength And Conditioning Coaches' Perceptions Of Sport Psychology Strategies, Alessandro Quartiroli, Erin Whitney Grandy Moore, Rebecca A. Zakrajsek

Kinesiology, Health and Sport Studies

Strength and conditioning coaches (SCCs) hold a central role in the development of student-athletes. Although they certainly focus on student-athletes' physical skill development, SCCs are in an ideal position to integrate mental skills into their strength and conditioning sessions. For example, sport psychology (SP) strategies can be used within strength and conditioning sessions to assist in athlete exercise execution by regulating arousal, improving concentration, confidence, as well as improve self-correction through self-talk and imagery. The purpose of this study was to assess collegiate SCCs' use of SP skills/strategies. A total sample of 415 SCCs (19.7% return rate) across the United …

Power Output, Cadence, And Torque Are Similar Between The Forward Standing And Traditional Sprint Cycling Positions, Paul F. J. Merkes, Paolo Menaspà, Chris R. Abbiss

Research outputs 2014 to 2021

Purpose:

Compare power output, cadence, and torque in the seated, standing, and forward standing cycling sprint positions.

Methods:

On three separated occasions (ie, one for each position), 11 recreational male road cyclists performed a 14 seconds sprint before and directly after a high-intensity lead-up. Power output, cadence, and torque were measured during each sprint. Results: No significant differences in peak and mean power output were observed between the forward standing (1125.5 ± 48.5 W and 896.0 ± 32.7 W, respectively) and either the seated or standing positions (1042.5 ± 46.8 W and 856.5 ± 29.4 W; 1175.4 ± 44.9 W …

Autoregulation In Resistance Training: Addressing The Inconsistencies, Leon Greig, Ben Hayden Stephens Hemingway, Rodrigo R. Aspe, Kay Cooper, Paul Comfort, Paul A. Swinton

Research outputs 2014 to 2021

© 2020, The Author(s). Autoregulation is a process that is used to manipulate training based primarily on the measurement of an individual’s performance or their perceived capability to perform. Despite being established as a training framework since the 1940s, there has been limited systematic research investigating its broad utility. Instead, researchers have focused on disparate practices that can be considered specific examples of the broader autoregulation training framework. A primary limitation of previous research includes inconsistent use of key terminology (e.g., adaptation, readiness, fatigue, and response) and associated ambiguity of how to implement different autoregulation strategies. Crucially, this ambiguity in …

Large Reductions In Match Play Physical Performance Variables Across A Professional Football Season With Control For Situational And Contextual Variables, Matthew Springham, Sean Williams, Mark Waldron, Darren Burgess, Robert Usher Newton

Research outputs 2014 to 2021

This investigation examined match play physical performance across a professional football season using a multicamera computerized tracking system. A linear mixed-effects model, controlling for situational and contextual variables, identified decreases in team average total distance (TD): season quarter 1 (Q1) (11,047 m) > season quarter 2 (Q2) (10,473 m) ( = ; ES = ), season quarter 3 (Q3) (10,449 m) ( < 0.001; ES = ), and season quarter 4 (Q4) (10,385 m) ( < 0.001; ES = ); work rate (WR): Q1 (115 m/min) > Q3 (108 m/min) ( < 0.001; ES = ), Q4 (107 m/min) ( < 0.001; ES = ); Q2 (109 m/min) > Q4 (107 m/min) ( = 0.003; ES = ); high-speed running distance (HSR): Q1 (1,051 m) > Q2 (813 m) ( = 0.006; ES = ); number of high-speed runs (NHSR): Q1 (87) > Q2 (65) ( …

The Effects Of Acute Photobiomodulation On Anaerobic Exercise Performance, Jillian Danielle Forsey

Graduate Theses, Dissertations, and Problem Reports

Optimal performance in sport requires a balance between training stress and recovery. Therapeutic modalities that allow athletes to maintain this balance while training hard are in high demand, but many lack research. Photobiomodulation is a red and near-infrared light therapy that is proposed to enhance exercise performance and hasten recovery. The purpose of this study was to examine the effects of acute whole body photobiomodulation, applied pre-exercise, on anaerobic exercise performance.

Forty-eight healthy, active subjects participated in this single-blind, crossover study. Subjects visited the lab three times to complete a repeat Wingate test, with one week between each visit. All …

Improving Sprint Performance In Road Cycling: The Forward Standing Sprint Position, Paul Franciscus Johannes Merkes

Theses: Doctorates and Masters

The majority of road cycling races finish with a sprint and as such sprints are a key determinant of success. Surprisingly, the scientific literature on this specific topic is scarce, with limited to few studies describing the characteristics of road cycling sprinters and the demands of road sprinting. Cyclists’ sprinting velocity, which is mostly influenced by power output and aerodynamic drag (CdA) is critical to performance outcomes. However, to date, there is very limited research specifically examining how to maximise road sprint velocity. Thus, the overall objective of the four studies outlined in this thesis was to manipulate CdA, physiology, …

Higher Muscle Tissue Oxygenation When Exposed To Hypobaric Hypoxia Than Normobaric Hypoxia, Christina N. Angeli, Robert J. Shute, Dustin R. Slivka

Journal of Human Performance in Extreme Environments

There has been recent debate on the potential difference in physiological response between exposure to simulated altitude (normobaric hypoxia) and terrestrial altitude (hypobaric hypoxia). Purpose: To determine the difference in the physiological response to normobaric and hypobaric hypoxia during exercise. Methods: Eight recreationally active subjects (27 ± 5 y old, 73.1 ± 7.4 kg body weight, 170.6 ± 6.7 cm height, and 19.3 ± 9.2 % body fat) completed incremental cycling exercise to volitional fatigue in three separate environments: normobaric normoxia (NN; 350 m), normobaric hypoxia (NH; simulated 3094 m), and hypobaric hypoxia (HH; 3094 m). Heart rate, blood oxygen …

Cluster Set Loading In The Back Squat: Kinetic And Kinematic Implications, Alexander Wetmore, John P. Wagle, Matt L. Sams, Christopher Taber, Brad H. Deweese, Kimitake Sato, Michael H. Stone

Exercise Science Faculty Publications

Cluster set loading in the back squat: Kinetic and kinematic implications. J Strength Cond Res XX(X): 000–000, 2018—As athletes become well trained, they require greater stimuli and variation to force adaptation. One means of adding additional variation is the use of cluster loading. Cluster loading involves introducing interrepetition rest during a set, which in theory may allow athletes to train at higher absolute intensities for the same volume. The purpose of this study was to investigate the kinetic and kinematic implications of cluster loading as a resistance training programming tactic compared with traditional loading (TL). Eleven resistance-trained men (age = …

Orthorexia Nervosa Among Collegiate Female Student-Athletes, Maryse Bard-Martel

MSU Graduate Theses

Orthorexia nervosa (ON) is a specific style of disordered eating defined as an unhealthy obsession with eating healthy food, or going to extremes in the pursuit of a diet that is supposed to be good for you. The purpose of this study was to explore the prevalence of orthorexia nervosa tendencies in college female soccer players in the NCAA Division 1. Purposive sampling was used, and participants were current student-athletes from the Missouri State women’s soccer team (n=18). Survey research was utilized to assess athletes’ attitudes and behaviors related to various aspects of diet and training, and the control it …

Effects Of Foam Rolling On Range Of Motion And Vertical Jump Height, Giovanna Leone, Chad Smith

Honors Theses

Static stretching has been shown to elicit an acute improvement in range of motion (ROM) in both the contralateral and ipsilateral limb. However, static stretching has also been shown to impair performance. Foam rolling has been used in clinical settings as well as by the general population to increase ROM without impairing performance. To date, there is limited research evaluating the effect of foam rolling on the contralateral limb. Therefore, the purpose of this study was to explore the effect of foam rolling on ROM and single-leg drop jump performance in the foam rolled and non-foam rolled legs. The results …

Effects Of A Carbohydrate Hydrogel Beverage On Endurance Cycling Performance And Gastrointestinal Comfort, Harrison R. Toney

Masters Theses, 2010-2019

PURPOSE: This study examined the effects of a novel maltodextrin-fructose hydrogel (MF-H) on cycling performance and gastrointestinal distress symptoms. METHODS: Nine endurance-trained male cyclists completed three experimental trials consisting of a 98-min varied-intensity cycling protocol followed by a performance test of ten consecutive sprint intervals. In a cross-over design, subjects consumed 250 mL of a treatment beverage every 15 min of cycling. The treatments consisted of 78 g ^. hr^-1 of either a) MF-H, b) maltodextrin-fructose (MF), and c) maltodextrin only (MD) All data were assessed using repeated measures ANOVA’s. RESULTS: There were no differences in average sprint power …

Increasing Collegiate Strength And Conditioning Coaches' Communication Of Training Performance And Process Goals With Athlete, E. Whitney G. Moore, Alessandro Quartiroli, Rebecca Zakrajsek, Morgan Eckenrod

Kinesiology, Health and Sport Studies

The purpose of this paper is to present information about goal setting and how strength and conditioning coaches (SCCs) can incorporate goal setting strategies in their training of athletes. This paper presents an overview of outcome, performance, and process goals, and the SMAART framework. Strategies a SCC can utilize are presented to illustrate how to increase the effectiveness of the performance and process goals that informed the program periodization and feedback provided by the SCC. This paper aims to start bridging the gap between SCCs familiarity with goal setting and incorporation of this mental strategy into their communication with athletes …

Running Economy Strongly Related To Ground Contact Time Imbalances, Aaron D. Piper, Erica G. Knowles, Nicholas A. Guerra, Eric J. Jones, Dustin P. Joubert

International Journal of Exercise Science: Conference Proceedings

Running economy (RE) can be defined as the oxygen consumption or caloric unit cost required to move at a specific velocity. In addition to a runner’s maximal oxygen uptake (VO2max) and lactate threshold (LT), RE is a key endurance performance determinant. Better RE is advantageous as it represents the ability to run at a lower relative percentage of VO2max at a given speed and reduces the rate of energy depletion. Ground contact time (GCT) has been associated with RE, however it has not been established how GCT imbalances between feet impact economy. Purpose: Determine the relationship between cadence, GCT, and …

Effects Of Curcumin And Fenugreek Soluble Fiber Supplements On Submaximal And Maximal Aerobic Performance Indices In Untrained College-Aged Subjects, Jensen Goh Zhong Sheng

Theses and Dissertations--Kinesiology and Health Promotion

Submaximal exercise performance is, in part, limited by the accumulation of metabolic byproducts and energy system capacities. Curcumin and the combination of curcumin and fenugreek soluble fiber (CurQfen^®) have been shown to increase endogenous antioxidants and metabolic byproduct clearance as well as reduce inflammation and lipid peroxidation, and therefore, may enhance submaximal aerobic thresholds. In addition, there is evidence that the galactomannan component of fenugreek, used to enhance bioavailability of curcumin, may also have potential physiological effects related to the up regulation of free fatty acid oxidation Therefore, the purpose of this study was to examine the effects …

Ferritin: An Iron Deficiency Biomarker In Collegiate Female Distance Runners, Ty Bigelow

Graduate Theses, Dissertations, and Problem Reports

Context: Iron deficiency is a concern in distance runners due to the implications that hemoglobin production becomes impaired limiting oxygen uptake and tissue oxidation in the body. Ferritin is a biomarker used to diagnose iron deficiency. The related signs and symptoms of iron deficiency are associated with decreased performance and prolonged recovery. Objective: The purpose of this study was to investigate whether the change in ferritin levels affect measures of performance, measures of recovery, and rate of perceived exertion in female endurance runners. Design: The study was a descriptive longitudinal study. Setting: The study was conducted at a Mid-Atlantic Division …

The Effect Of One Night Of Sleep Restriction On Aerobic Exercise Performance, Lindsay Lickers

Senior Honors Projects, 2010-2019

Purpose: Sleep is essential for bodily recovery and is especially important for athletes who will sustain high volumes of muscle damage. Many athletes struggle to get enough sleep, particularly the night prior to competition for a variety of reasons. Long term sleep deprivation has definitively shown negative effects on athletic performance; however, little is known about the effect of a single night of reduced sleep.Methods: Complete data was gathered on nine subjects. Following VO2max testing and a familiarization trial, subjects performed two experimental trials that concluded with simulated 3- km time trials on a cycle ergometer: one …

The Impact Of Whoop Technology On Sleep, Recovery, And Performance In Naia Baseball Players, Nolan Harms

Department of Teaching, Learning, and Teacher Education: Dissertations, Theses, and Student Research

Many key factors – including but not limited to – sleep, nutrition, travel, stress, and practice influence the optimization of athletic performance. Although previous studies have investigated the use of wearable technology in sport to track several such factors, peer-reviewed research specific to WHOOP technology is limited at best. The purpose of this study was to examine the impact of WHOOP technology on sleep, recovery, and batting performance in healthy NAIA baseball players. Data was collected over the course of 4 weeks of in-season play on 10 varsity NAIA baseball players (20.40 ± 0.97 years). All games – 18 total …

Cluster Set Loading In The Back Squat: Kinetic And Kinematic Implications, Alexander Wetmore

Electronic Theses and Dissertations

The purpose of this study was to investigate the kinetic and kinematic implications of cluster loading as a resistance training programming tactic. Cluster loading involves introducing rest during a set which may allow athletes to train at higher absolute intensities. Eleven trained males were recruited for this study. Subjects completed two testing sessions consisting of three sets of five back squats at 80% of their one repetition maximum. Cluster loading included 30s of inter-repetition rest. All testing was done on dualforce plates with four linear position transducers. Paired sample t-tests were used to determine differences between conditions with Cohen’s d …