Sports Sciences Commons^™

Effects Of Social Interaction And Transformational Leadership On Sport Event Volunteers' Perception Of Team Member Exchange, Kasidech Treethong

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study contributes to the management of sport event volunteers, where particular team member exchange is crucial in promoting teamwork among sport event volunteers. The objectives of this study are 1) to examine the effects of social interaction and transformational leadership on the sport event volunteers' perception of team member exchange and 2) to examine the interaction effect between social interaction and transformational leadership on the sport event volunteers' perception of team member exchange. This study employed a field experiment and a post-experiment interview at the 2019 FIVB Volleyball Nations League Thailand. Subjects (n = 64) were assigned by stratified …

The Influence Of Sports Facilities' Accessibility, Motivation, And Satisfaction On Word-Of-Mouth And Re-Participation Intentions Of Athletes With Physical Disabilities, Thee Trongjitpituk

Chulalongkorn University Theses and Dissertations (Chula ETD)

More than a billion people are estimated to live with some form of disability, or about 15% of the world's population and the number is still growing. People with disabilities are less likely to participate in sports due to several physical barriers they face. In an effort to find ways to increase the sports participation rate of people with disabilities, the concept of marketing (satisfaction, word-of-mouth intention, and re-participation intention) was applied to the field of accessibility for the first time. This study consisted of three objectives: (1) to find out the dimension of sports facilities' accessibility and motivation, (2) …

การพัฒนารูปแบบกิจกรรมนันทนาการระหว่างวัยที่มีผลต่อสุขภาพองค์รวมและคุณภาพชีวิตของผู้สูงอายุ, อุไรวรรณ ขมวัฒนา

Chulalongkorn University Theses and Dissertations (Chula ETD)

วัตถุประสงค์ การวิจัยครั้งนี้มีวัตถุประสงค์เพื่อพัฒนาโปรแกรมนันทนาการระหว่างวัยและหาประสิทธิผลของโปรแกรมที่มีต่อสุขภาพองค์รวมและคุณภาพชีวิตของผู้สูงอายุและเพื่อพัฒนารูปแบบนันทนาการระหว่างวัย วิธีการดำเนินงานวิจัย มี 2 ขั้นตอน คือ ขั้นตอนที่ 1 พัฒนาโปรแกรมนันทนาการระหว่างวัยและวัดประสิทธิผลของโปรแกรมที่มีต่อสุขภาพองค์รวมและคุณภาพชีวิตของผู้สูงอายุ โดยใช้วิธีการวิจัยแบบผสานวิธี (Mixed Methods Research) แบ่งออกเป็น 3 ระยะ ระยะที่ 1 ศึกษาความต้องการกิจกรรมนันทนาการของผู้สูงอายุในประเทศไทย จำนวน 470 คน จาก16 จังหวัด ตอบแบบสอบถามทัศนคติและความต้องการกิจกรรมนันทนาการของผู้สูงอายุ ระยที่ 2 ศึกษาวิถีชีวิตความเป็นอยู่ การใช้เวลาว่างและความต้องการกิจกรรมนันทนาการระหว่างวัยของผู้สูงอายุ (อายุ 60-75ปี) และเด็ก(อายุ 5-12 ปี) ด้วยวิธีสนทนากลุ่ม(Focus Group) ผู้สูงอายุและสัมภาษณ์เชิงลึก (Indepth Interview) กับเด็ก ผู้วิจัยนำข้อมูลที่ได้มาสร้างโปรแกรมนันทนาการระหว่างวัยที่ส่งผลต่อสุขภาพองค์รวมและคุณภาพชีวิตของผู้สูงอายุ ระยะที่ 3 การหาประสิทธิผลของโปรแกรมโดยใช้วิธีการดำเนินการวิจัยตามแบบศึกษากลุ่มเดียววัดสองครั้ง (One Group Pretest - Posttest Design) เป็นผู้สูงอายุที่อาศัยอยู่ในชุมชนหมู่บ้านแหลมทองนิเวศน์จำนวน 20 คนเข้าร่วมกิจกรรมนันทนาการระหว่างวัยร่วมกับเด็กวัย 5-12 ปีเป็นเวลา 5สัปดาห์ สัปดาห์ละ 3 ครั้ง ครั้งละ 60 นาที ทำการวัดสมรรถภาพทางกาย สุขภาพจิต สุขภาพทางสังคม สุขภาพทางจิตวิญญาณและคุณภาพชีวิต ก่อนและหลังเข้าร่วมกิจกรรม นำข้อมูลที่ได้มาหาค่าเฉลี่ย ส่วนเบี่ยงเบนมาตรฐาน และเปรียบเทียบค่าทีแบบรายคู่ (Paired t-test) ขั้นตอนที่ 2 พัฒนารูปแบบนันทนาการระหว่างวัย ผลการวิจัย การวิจัยในขั้นตอนที่ 1 พบว่ากลุ่มตัวอย่างมีสุขภาพองค์รวม คือ สุขภาวะทางกายด้านความแข็งแรงและความอดทนของกล้ามเนื้อแขน ความคล่องแคล่วและความสามารถในการทรงตัวแบบเคลื่อนที่ สุขภาวะทางจิต สุขภาวะทางจิตวิญญาณด้านความเป็นมิตร สุขภาวะทางสังคม และคุณภาพชีวิตโดยรวมก่อนและหลังการทดลองมีความแตกต่างกันอย่างมีนัยสำคัญทางสถิติที่ระดับ .05 และการพัฒนารูปแบบกิจกรรมนันทนาการระหว่างวัยโดยใช้รูปแบบเชิงระบบ (Systematic Model) มีองค์ประกอบ 4 ส่วนคือ ปัจจัยนำเข้า (In Put) ประกอบด้วยชุมชนที่เข้มแข็ง ผู้นำกิจกรรมที่มีประสบการณ์ กระบวนการ …

การพัฒนาโปรแกรมการลดพฤติกรรมเนือยนิ่งในพนักงานออฟฟิศตามโครงสร้างของทฤษฎีกระบวนการรับรู้ทางสังคม, ระวีวรรณ มาพงษ์

Chulalongkorn University Theses and Dissertations (Chula ETD)

การศึกษาวิจัยครั้งนี้เป็นการวิจัยแบบผสานวิธี (Mixed method) มีวัตถุประสงค์ 1) เพื่อศึกษาสถานการณ์ปัจจุบันของพนักงานออฟฟิศในด้านความรู้ ทัศนคติ และการมีพฤติกรรมเนือยนิ่ง 2) เพื่อพัฒนารูปแบบโปรแกรมการลดพฤติกรรมเนือยนิ่งในพนักงานออฟฟิศตามโครงสร้างของทฤษฎีกระบวนการรับรู้ทางสังคม และ 3) เพื่อศึกษาประสิทธิผลของโปรแกรมการลดพฤติกรรมเนือยนิ่งในพนักงานออฟฟิศตามโครงสร้างของทฤษฎีกระบวนการรับรู้ทางสังคม เครื่องมือที่ใช้ในการวิจัยได้แก่แบบสอบถามพฤติกรรมเนือยนิ่ง แบบสังเกตสิ่งแวดล้อม แบบสัมภาษณ์ โปรแกรมการลดพฤติกรรมเนือยนิ่งตามโครงสร้างของทฤษฎีกระบวนการรับรู้ทางสังคม และเครื่องวัดพฤติกรรมเนือยนิ่งและกิจกรรมทางกาย กลุ่มตัวอย่าง คือพนักงานออฟฟิศ (บุคลากรสายปฏิบัติการ) คณะพลศึกษาและคณะวิศวกรรมศาสตร์ มหาวิทยาลัยศรีนครินทรวิโรฒ จำนวน 78 คน แบ่งออกเป็นกลุ่มควบคุม (คณะวิศวกรรมศาสตร์) และกลุ่มทดลอง (คณะพลศึกษา) กลุ่มละ 39 คน กลุ่มทดลองเข้าร่วมโปรแกรมจำนวน 8 สัปดาห์ กลุ่มควบคุมไม่ได้รับโปรแกรม ผลจากการศึกษา พบว่า 1) พนักงานออฟฟิศ ใช้เวลาส่วนใหญ่ในการทำงานไปกับการมีพฤติกรรมเนือยนิ่ง (383.85±93.03 นาที คิดเป็น 6 ชั่วโมง 23 นาที) จากการสัมภาษณ์พบว่าพนักงานออฟฟิศส่วนใหญ่ไม่รู้จักและไม่เข้าใจความหมายของพฤติกรรมเนือยนิ่ง สาเหตุของการมีพฤติกรรมเนือยนิ่งในการทำงานเกิดจากภาระงาน อุปนิสัยส่วนตัว และสภาพอากาศ องค์กรไม่มีนโยบาย สิ่งแวดล้อมทางกายภาพไม่เอื้อต่อการลดพฤติกรรมเนือยนิ่ง และไม่มีการสนับสนุนจากเพื่อนร่วมงานหรือองค์กรเพื่อลดพฤติกรมเนือยนิ่ง 2) โปรแกรมการลดพฤติกรรมเนือยนิ่งในพนักงานออฟฟิศตามโครงสร้างของทฤษฏีกระบวนการรับรู้ทางสังคมมีการปรับเปลี่ยนใน 2 ระดับคือการปรับเปลี่ยนในระดับองค์กรและการปรับเปลี่ยนในระดับตัวบุคคล ในระดับองค์กรมีการกำหนดนโยบายองค์กร เพื่อให้เกิดการปรับเปลี่ยนวัฒนธรรมองค์กรด้านสุขภาพสิ่งแวดล้อมทางกายภาพและสังคม และพฤติกรรมองค์กรด้านสุขภาพ ระดับตัวบุคคลควรมีการให้ความรู้เพื่อเพิ่มการรับรู้ความสามารถของตนเอง การตั้งเป้าหมาย และการควบคุมตนเอง มีค่าดัชนีความสอดคล้องเท่ากับ 0.8 และ 3) การใช้โปรแกรมการลดพฤติกรรมเนือยนิ่งในพนักงานออฟฟิศตามโครงสร้างของทฤษฏีกระบวนการรับรู้ทางสังคมระยะเวลา 8 สัปดาห์ ระดับองค์กรพบว่ามีการปรับเปลี่ยนวัฒนธรรมองค์กรด้านสุขภาพ สิ่งแวดล้อมทางกายภาพและสังคม และพฤติกรรมองค์กรด้านสุขภาพ ระดับบุคคลพบว่าพนักงานออฟฟิศที่เข้าร่วมโปรแกรมมีความรู้เกี่ยวกับพฤติกรรมเนือยนิ่ง การสนับสนุนด้านสิ่งแวดล้อมทางกายภาพ การเชื่อมั่นในความสามารถของตนเองเพิ่มขึ้น มีอัตราการใช้พลังงานของร่างกายเพิ่มขึ้น (กลุ่มควบคุม 1.13±.01 MET กลุ่มทดลอง 1.17±.01 MET) มีพฤติกรรมเนือยนิ่งในการทำงานลดลง (กลุ่มควบคุม 397.30±39.33 นาที กลุ่มทดลอง 389.09±37.59 นาที) มีกิจกรรมทางกายที่ความหนักระดับต่ำเพิ่มขึ้น (กลุ่มควบคุม 50.99±18.75 นาที กลุ่มทดลอง 68.50±23.85 นาที) …

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 …

Validity And Reliability Of Methods To Determine Barbell Displacement In Heavy Back Squats: Implications For Velocity-Based Training, Brendyn B. Appleby, Harry Banyard, Prue Cormie, Stuart J. Cormack, Robert U. Newton

Research outputs 2014 to 2021

The purpose of this study was to investigate the validity and reliability of methods for determining barbell displacement during heavy back squats. Twelve well-trained rugby union players (mean ± SD 1 repetition maximum [1RM] 90° squat = 196.3 ± 29.2 kg) completed 2 sets of 2 repetitions at 70, 80, and 90% of 1RM squats. Barbell displacement was derived from 3 methods across 4 load categories (120–129, 140–149, 160–169, and 180–189 kg) including: a (a) linear position transducer (LPT) attached 65 cm left of barbell center, (b) 3D motion analysis tracking of markers attached to either end of a barbell, …

The Effect Of Intermittent Cooling On Simulated Basketball Game Performance, Dalton E. Cousin

College of Graduate Studies: Theses & Dissertations

Context: Hyperthermia is induced during prolonged exercise which promotes fatigue and a decline in performance. Basketball athletes have trouble preventing an onset of hyperthermia; thus, cryotherapy is applied intermittently to combat the negative effects.

Objective: To determine, (1) effect intermittent cooling has on simulated basketball performance, perceived exertion and perceived recovery; and (2) change in performance while applying two different forms of intermittent cooling during the Basketball Specific Fatigue Protocol (BSFP).

Design: Crossover study design.

Setting: Indoor collegiate basketball court.

Patients or Other Participants: Sixteen competitively trained recreational basketball athletes (15 males, 1 female; age = 21.1 ± 1.2 yr). …

Influence Of Strength Level On The Acute Post-Activation Performance Enhancement Following Flywheel And Free Weight Resistance Training, Borja Sañudo, Moisés De Hoyo, Guy Gregory Haff, Alejandro Muñoz-López

Research outputs 2014 to 2021

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This study aimed to compare the post-activation potentiation performance enhancement (PAPE) response to the acute inertial flywheel (FW) and free weight resistance training (TRA) on subsequent countermovement jump (CMJ) and sprint performance (10 m sprint). This study used a randomized crossover design including twenty-eight healthy males that were divided into strong (relative one-repetition maximum (1RM) back squat > 2.0 × body mass) and weak (relative 1RM back squat < 2.0 × body mass) groups. All participants performed the following: (a) three reps at 90% of their 1RM back squat (TRA) and (b) three reps on an inertial FW (plus one repetition to initiate flywheel movement) with an intensity that generated a mean propulsive velocity equal to that achieved with 90% of the 1RM back squat. Before and after the conditioning activity, participants performed two CMJs and two 10 m sprints. Within-group analyses showed significantly greater CMJ (d > 0.9, p < 0.001) and sprint performance (d > 0.5, p < 0.05) in the FW and the TRA group. Between-group analysis showed that sprint changes were significantly greater in the FW-strong group when compared with the TRA (F1,18 = 5.11, p = 0.036, η2p = 0.221—large) group. These results suggest that using a squat activation protocol on a FW may lead to an acute positive effect on jump and sprint performance, especially in stronger individuals.

Physiological Performance Characteristics Of Universal Tennis Rating (Utr), Savanna Storm Hunt

Dissertations and Theses @ UNI

The purpose of this study was to create a physiological profile based on UTR through a series of tests to aid coaches in improving the performance of their athletes of any UTR level and to prepare the athletes physiologically for the level above. The UTR patent details skill and tactical development of players at each level as well as a few psychological skills. Physiological skills are only vaguely mentioned and not quantified creating a desire for a physiological profile. It has been previously agreed upon that high capabilities in linear speed, agility, power, anaerobic, aerobic, and strength are correlated with …

The Use Of Small-Sided Games As An Aerobic Fitness Assessment Supplement Within Elite Level Professional Soccer, Adam Lee Owen, Matthew Newton, Aidan Shovlin, Shane Malone

Articles

The purpose of this investigation was to quantify the association between 5 vs. 5 small sided games (SSG) running performance and physiological performance during the Yo-YoIR1 test to ascertain the utility of SSGs as a potential fitness test modality within elite professional soccer players. Twenty-three (n = 23) elite male professional soccer players (mean ± SD age 25.3 ± 3.1 yrs, mass: 76 ± 9 kg, height: 176 ± 9 cm) were assessed. Players completed an intermittent aerobic fitness test (Yo-YoIR1) and a 5 vs. 5 SSGs protocol for the purpose of the study. During all SSGs players wore GPS …

Monitoring Wellness, Training Load, And Running Performance During A Major International Female Field Hockey Tournament, Aideen Mcguinness, Gerard Mcmahon, Shane Malone, Darren Kenna, David Passmore, Kieran Collins

Articles

The current observational study quantified players' activity profiles during a major international female field hockey tournament and determined whether an association exists between well-being measures and running performance within elite female hockey players. Elite female field hockey players (23 6 3 years; 162.6 6 13 cm; and 66 6 6 kg) participated in the study. Participants running performance was monitored using global positioning system technology (S5; Catapult Innovations , Scoresby, Victoria, Australia), with daily well-being questionnaires used to quantify player responses during the tournament. Thresholds for the magnitude of the observed change for each variable were determined using the Hopkins …

Identification Of Maximal Running Intensities During Elite Hurling Match-Play, Damien Young, Shane Malone, Marco Beato, Laurent Mourot, Giuseppe Coratella

Articles

The current study aimed to describe the duration-specific running intensities of elite hurling players during competition with respect to position using a rolling average method. Global positioning systems (10-Hz Viper; STATSport, Viper, Newry, Northern Ireland) were used to collect data from 36 elite hurling players across 2 seasons. Players were categorized according to playing positions (full-backs, half-backs, midfielders, half-forwards, and full-forwards). A total of 230 full match samples were obtained from 22 competitive games for analysis. The velocity-time curve was analyzed using a rolling average method, in which the maximum relative total distance (TD; m·min), high-speed running distance (HSR; m·min), …

Athletic Training Assessment Of Knowledge Inconsistent With Perceptions Of Knowledge Needs: Part Ii, Jessica R. Edler, Lindsey E. Eberman

Internet Journal of Allied Health Sciences and Practice

Purpose: Continuing education (CE) is intended to promote continued competence beyond the level required for entry-level practice. Previous research suggests that athletic trainers are unable to identify their knowledge gaps regarding their clinical practice. The purpose of this research study was to determine if athletic trainers’ perceived need for CE aligns with their performance on an actual knowledge assessment. Method: We used a correlational design conducted on Qualtrics, a web-based platform. Four hundred, forty-four (444) athletic trainers completed all the CE Needs Assessment and over 60% of the athletic training assessment of knowledge. The CE Needs Assessment determined participant’s perceived …

Opioids And An Active Population: Athletic Trainers' Perceptions, Dana Karlene Bates

Internet Journal of Allied Health Sciences and Practice

Purpose: Opioid use, misuse, and abuse are occurring in both high school and collegiate athletes. There is limited research that examines athletic trainers' perceptions of opioids. The purpose of this qualitative research study was to investigate athletic trainers’ awareness and practice of opioids in an active population. Method: Qualitative inquiry was used to explore athletic trainers' awareness of opioids in an active population. Ten athletic trainers (7 male, 3 female) employed in the Northwest Athletic Training Association (6 collegiate, 4 high schools) volunteered for this study. Phone interviews were conducted in July to September 2017 with a semi-structured …

Athletic Training And Physical Therapy Junior Faculty Member Preparation: Perceptions Of Doctoral Programs And Clinical Practice, Jessica L. Barrett, Stephanie M. Singe, Aynsley Diamond

Internet Journal of Allied Health Sciences and Practice

Background: Institutions of higher education suffer from a shortage of appropriately prepared faculty members in athletic training and physical therapy programs. Both professional programs have recently undergone curricular reform and degree change. We sought gain an understanding of the preparation mechanisms experienced by athletic training and physical therapy practitioners for their junior faculty positions. Method: Twenty-six athletic trainers and physical therapists participated in this phenomenological study. Data from one-on-one phone interviews were analyzed following the inductive process of interpretive phenomenological analysis. Content experts, pilot interviews, multiple analysts and member checking ensured trustworthiness. Results: Findings indicate two primary mechanisms prepared the …

Plyometric Training For Young Male Field Hockey Players, Vijaya Krishnan, Twincy Rajawadha

Internet Journal of Allied Health Sciences and Practice

Background: Field hockey is a team sport requiring a combination of skill set to enhance a player’s performance. Power, Fitness and Agility are few such basic parameters. Newer training protocols are constantly explored to achieve the desired effect and plyometrics is one such method. It is also important to know how long lasting the effects of training are. Methodology: Fifty (50) male field hockey players at interschool and zonal level participated in the study. These sports specific parameters - lower limb power, fitness level and agility - were tested using the vertical jump test, 40-metre sprint test, and shuttle cross …

The Prevalence Of Secondary School Sport Safety Policies Within State Athletic Associations And Legislation, Samantha E. Scarneo, William M. Adams, Susan W. Yeargin, Madeline A. Konz, James E. Potter, Douglas J. Casa

Internet Journal of Allied Health Sciences and Practice

Purpose: The location of secondary school health and safety policies impacts how they are implemented by the sports medicine team and stakeholders. Yet, a comprehensive list of each state’s policy locations has not been established. The purpose of this study was to describe where secondary school health and safety policies were located at the state level within the United States. Method: Emergency related health and safety policies were designated as either being located in the state high school athletics association (SHSAA), state legislation (LEGIS), or in both SHSAA and LEGIS (BOTH). Designation was determined by two researchers who independently …

Athletic Identity And Intention To Report Concussions In High School Athletes, Natalie F. Cook

College of Graduate Studies: Theses & Dissertations

Context: Lack of concussion reporting remains a problem as high school athletes report about fifty percent of all concussions. Purpose: The study sought to determine if there is a relationship between athletic identity and athlete’s intention to report concussions. Methods: The sample consisted of 78 high school athletes (m age = 16.19 + 0.88, 56 males, 22 females). Participants were administered the Athletic Identity Measurement Scale (AIMS) and Intention to Report Subscale which served as dependent measures. The presence of AI was determined by comparing AIMS score to previous norms. A linear regression was used to determine the relationship …

Acute Physiological Responses To High-Intensity Resistance Circuit Training Vs. Traditional Strength Training In Soccer Players, Cristian Marín-Pagán, Anthony J. Blazevich, Linda H. Chung, Salvador Romero-Arenas, Tomás T. Freitas, Pedro E. Alcaraz

Research outputs 2014 to 2021

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. The aim of this study was to evaluate and compare the cardiorespiratory and metabolic responses induced by high-intensity resistance circuit-based (HRC) and traditional strength (TS) training protocols. Ten amateur soccer players reported to the laboratory on four occasions: (1) protocol familiarization and load determination; (2) maximal oxygen consumption test; (3) and (4) resistance training protocols (HRC and TS), completed in a cross-over randomized order. In both protocols, the same structure was used (two blocks of 3 sets × 3 exercises, separated by a 5-min rest), with only the time between consecutive …

Pilot Study On The Reliability Of The Coach's Eye: Identifying Talent Throughout A 4-Day Cadet Judo Campp, Alexandra H. Roberts, Daniel Greenwood, Clare Humberstone, Annette J. Raynor

Research outputs 2014 to 2021

A typical assumption found in talent identification literature is that different coaches, given the same athletes and circumstances, will identify the same subset of athletes as “talented”. However, while coaches play a major role during talent identification in practical sport settings, there is limited empirical research exploring the processes which underpin this. The purpose of this study was to explore the reliability of “the coach's eye” during the assessment of talent in a group of athletes. Specifically, this project compared inter-coach agreement between nine judo coaches (ages 35.8 ± 10.6 years) with varying levels of experience (12.9 ± 8.9 years) …

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 …

The Effect Of Nordic Hamstring Exercise Intervention Volume On Eccentric Strength And Muscle Architecture Adaptations: A Systematic Review And Meta-Analyses, Matthew Cuthbert, Nicholas Ripley, John J. Mcmahon, Martin Evans, G. Gregory Haff, Paul Comfort

Research outputs 2014 to 2021

Background: Although performance of the Nordic hamstring exercise (NHE) has been shown to elicit adaptations that may reduce hamstring strain injury (HSI) risk and occurrence, compliance in NHE interventions in professional soccer teams is low despite a high occurrence of HSI in soccer. A possible reason for low compliance is the high dosages prescribed within the recommended interventions. The aim of this review was to investigate the effect of NHE-training volume on eccentric hamstring strength and biceps femoris fascicle length adaptations.

Methods: A literature search was conducted using the SPORTDiscus, Ovid, and PubMed databases. A total of 293 studies were …

Exploring The Association Between Recent Concussion, Subconcussive Impacts And Depressive Symptoms In Male Australian Football Players, Sarah Ann Harris, Paola T. Chivers, Fleur L. Mcintyre, Ben Piggott, Max Bulsara, Fiona H. Farringdon

Research outputs 2014 to 2021

Objectives: To explore the association between depressive symptoms and recent head-related trauma (diagnosed concussion, subconcussive impacts) in semiprofessional male Australian Football (AF) players.

Methods: Sixty-nine semiprofessional male players from a West Australian Football League (WAFL) club participated in the study (M age =21.81, SD=2.91 years). Depressive symptoms were measured using the Centre for Epidemiological Studies Depression Scale. Injuries and potential confounding variables (eg, pre-existing mental health condition; alcohol or drug hangovers; experiencing a stressful event) were self-reported anonymously using the WAFL Injury Report Survey. Both tools were administered every 2-weeks over the first 22-weeks of the WAFL season. Controlling for …

Static Stretch And Dynamic Muscle Activity Induce Acute Similar Increase In Corticospinal Excitability, Jules Opplertid, Christos Paizis, Athina Papitsa, Anthony J. Blazevich, Carole Cometti, Nicolas Babault

Research outputs 2014 to 2021

Even though the acute effects of pre-exercise static stretching and dynamic muscle activity on muscular and functional performance have been largely investigated, their effects on the corticospinal pathway are still unclear. For that reason, this study examined the acute effects of 5×20 s of static stretching, dynamic muscle activity and a control condition on spinal excitability, corticospinal excitability and plantar flexor neuromuscular properties. Fifteen volunteers were randomly tested on separate days. Transcranial magnetic stimulation was applied to investigate corticospinal excitability by recording the amplitude of the motorevoked potential (MEP) and the duration of the cortical silent period (cSP). Peripheral nerve …

Reviewing The Current Methods Of Assessing Hydration In Athletes, Oliver R. Barley, Dale W. Chapman, Chris R. Abbiss

Research outputs 2014 to 2021

Background

Despite a substantial body of research, no clear best practice guidelines exist for the assessment of hydration in athletes. Body water is stored in and shifted between different sites throughout the body complicating hydration assessment. This review seeks to highlight the unique strengths and limitations of various hydration assessment methods described in the literature as well as providing best practice guidelines.

Main body

There is a plethora of methods that range in validity and reliability, including complicated and invasive methods (i.e. neutron activation analysis and stable isotope dilution), to moderately invasive blood, urine and salivary variables, progressing to non-invasive …

Addressing The Confusion Within Periodization Research, W. Guy Hornsby, Andrew C. Fry, G. Gregory Haff, Michael H. Stone

Research outputs 2014 to 2021

© 2020 by the authors. In this editorial, we focus on recent problematic developments in sport science, and more specifically, problems related to periodization research. Primary areas discussed are (1) appreciation of history, (2) considerations for training studies, (3) the development of concepts, and (4) programming-driven training models.

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 …

Isokinetic Eccentric Exercise Substantially Improves Mobility, Muscle Strength And Size, But Not Postural Sway Metrics In Older Adults, With Limited Regression Observed Following A Detraining Period, Anthony David Kay, Anthony John Blazevich, Millie Fraser, Lucy Ashmore, Mathew William Hill

Research outputs 2014 to 2021

© 2020, The Author(s). Introduction: Eccentric exercise can reverse age-related decreases in muscle strength and mass; however, no data exist describing its effects on postural sway. As the ankle may be more important for postural sway than hip and knee joints, and with older adults prone to periods of inactivity, the effects of two 6-week seated isokinetic eccentric exercise programmes, and an 8-week detraining period, were examined in 27 older adults (67.1 ± 6.0 years). Methods: Neuromuscular parameters were measured before and after training and detraining periods with subjects assigned to ECC (twice-weekly eccentric-only hip and knee extensor contractions) or …

Understanding The “Gut Instinct” Of Expert Coaches During Talent Identification, Alexandra H. Roberts, Daniel Greenwood, Mandy Stanley, Clare Humberstone, Fiona Iredale, Annette Raynor

Research outputs 2014 to 2021

Coaches are an integral part of talent identification in sport and are often used as the “gold standard” against which scientific methods of talent identification are compared. However, their decision-making during this process is not well understood. In this article, we use an ecological approach to explore talent identification in combat sports. We interviewed twenty-four expert, international-level coaches from the Olympic disciplines of boxing, judo, and taekwondo (age: 48.7 + 7.5 years; experience: 20.8 + 8.3 years). Findings indicated that when coaches identify talent they rely on “gut instinct”: intuitive judgements made without conscious thought, used to direct attention to …

Physiological Adaptations To Training And Associations With Performance In Division I Cross-Country Runners, Kailyn Renae Sanchez

EWU Masters Thesis Collection

No abstract provided.