Medicine and Health Sciences Commons^™

Phd_Thesis - Tactical Modelation Of Volleyball Game (Modelação Da Performance No Jogo De Voleibol Estudo De Indicadores Preditivos Do Rendimento Desportivo Em Equipas De Alto Nível), Rui Marcelino

Rui Marcelino

The purpose of this study was to study elite men Volleyball game as a complex entity that is adaptable to situational contexts. In this sense, situational variables such as home advantage, quality of opposition, match status and match periods were examined as having a possible influence on sports performance. The first empirical study analyzed 65.949 game actions taken from 275 sets played in the 2005 Men World League and examined the odds of winning each one of the five sets of the match according to game location (home vs. away); results showed that the advantage for home teams (home advantage) …

Six Year Follow-Up Of Students Who Participated In A School-Based Physical Activity Intervention: A Longitudinal Cohort Study, Lisa M. Barnett, Eric Van Beurden, Philip J. Morgan, Lyndon O. Brooks, Avigdor Zask, John R. Beard

Dr Lyndon O Brooks

Background: The purpose of this paper was to evaluate the long-term impact of a childhood motor skill intervention on adolescent motor skills and physical activity. Methods: In 2006, we undertook a follow-up of motor skill proficiency (catch, kick, throw, vertical jump, side gallop) and physical activity in adolescents who had participated in a one-year primary school intervention Move It Groove It (MIGI) in 2000. Logistic regression models were analysed for each skill to determine whether the probability of children in the intervention group achieving mastery or near mastery was either maintained or had increased in subsequent years, relative to controls. …

Human Dimensions Of Heavy Load Carriage, J. Drain, R. Orr, D. Billing, S. Rudzki

Rob Marc Orr

No abstract provided.

What Is The Number Needed To Treat When Exercise Training Heart Failure Patients?, Neil Smart

Neil Smart

Debate exists on the number needed to treat (NNT) to prevent one mortality with exercise training in heart failure patients. The primary aim of this work was to conduct a sensitivity analysis, removing outlying mortality data from a published meta-analysis of exercise training in heart failure patients. A sensitivity analysis was conducted by removing data from one randomized controlled trial that reported particularly high mortality rates and may be considered a data outlier. Annualized NNTs were subsequently calculated for mortality data from a meta-analysis of exercise training in heart failure patients. Sensitivity analysis showed that the mortality benefit reported by …

Systematic Review Of The Effect Of Aerobic And Resistance Exercise Training On Systemic Brain Natriuretic Peptide (Bnp) And N-Terminal Bnp Expression In Heart Failure Patients, N. Smart, M. Steele

Neil Smart

Background: BNP and the N-terminal portion (NT-pro-BNP) have emerged as powerful tools in the diagnosis and prognosis of heart failure on acute presentation. The aim of this work was to systematically review the effect of exercise training on BNP and NT-pro-BNP levels in patients with left ventricular dysfunction. Methods: A systematic search was conducted of Medline (Ovid) (1950–July 2008), Embase.com (1974–current), Cochrane Central Register of Controlled Trials, CINAHL (1981–current) and Web of Science (2000–current) to identify randomized controlled trials of aerobic and/or resistance exercise training in heart failure patients that measured BNP and/or pro-BNP. Primary outcome measures were changes in …

Methodological Considerations For The 3d Measurement Of The X-Factor And Lower Trunk Movement In Golf, Christopher Joyce, Angus Burnett, Kevin Ball

Christopher Joyce

Load Carriage: Minimising Soldier Injuries Through Physical Conditioning - A Narrative Review, R. M. Orr, R. Pope, V. Johnston, J. Coyle

Rob Marc Orr

No abstract provided.

Load Carriage: Minimising Soldier Injuries Through Physical Conditioning - A Narrative Review, Rob M. Orr, Rodney Pope, Venerina Johnston, Julia Coyle

Rob Marc Orr

Background: With soldiers carrying increasing loads, physical conditioning may provide one means of reducing injuries and increasing the ability to train, maintain and retain soldiers.

Purpose: The purpose of this study is to review the current literature on physical conditioning for load carriage and present the findings in a manner that will allow physical conditioning practitioners a means of applying them in a conditioning program.

Methods: Using key search terms, a literature search of academic databases (both civilian and military) was conducted, with additional relevant literature sought from military and civilian colleagues. Gathered papers were assessed against several key criteria …

Load Carriage: Minimising Soldier Injuries Through Physical Conditioning - A Narrative Review, Rob M. Orr, Rodney Pope, Venerina Johnston, Julia Coyle

Rodney P Pope

Background: With soldiers carrying increasing loads, physical conditioning may provide one means of reducing injuries and increasing the ability to train, maintain and retain soldiers.

Purpose: The purpose of this study is to review the current literature on physical conditioning for load carriage and present the findings in a manner that will allow physical conditioning practitioners a means of applying them in a conditioning program.

Methods: Using key search terms, a literature search of academic databases (both civilian and military) was conducted, with additional relevant literature sought from military and civilian colleagues. Gathered papers were assessed against several key criteria …

A Brief Description Of The Biomechanics And Physiology Of A Strongman Event: The Tire Flip, Justin W.L. Keogh, Amenda L. Payne, Brad B. Anderson, Paul J. Atkins

Justin Keogh

The purpose of this study was to (a) characterize the temporal aspects of a popular strongman event, the tire flip; (b) gain some insight into the temporal factors that could distinguish the slowest and fastest flips; and (c) obtain preliminary data on the physiological stress of this exercise. Five resistance-trained subjects with experience in performing the tire flip gave informed consent to participate in this study. Each subject performed 2 sets of 6 tire flips with a 232-kg tire with 3 minutes of rest between sets. Temporal variables were obtained from video cameras positioned 10 m from the tire, perpendicular …

Test–Retest Reliability Of The Soleus H-Reflex Is Affected By Joint Positions And Muscle Force Levels, Yungsheng Chen, Shi Zhou, Colleen Cartwright, Zachary Crowley, Robert Baglin, Fang Wang

Professor Colleen M Cartwright

The purpose of this study was to determine the test-retest reliability of the soleus (SOL) H-reflex during rest and isometric contractions at 10%, 30%, and 50% of the maximal voluntary force (MVC) at the ankle joint angles of neutral (0°), plantarflexion (20°), and dorsiflexion (-20°) respectively, in a sitting position. Ten healthy participants, with mean age of 24.9 ± 5.0 (SD) years, height 168.3 ± 8.8 cm, weight 62.7 ± 12.3 kg, were tested for the SOL H-reflex (Hmax) on two separate occasions within 7 days. The intra-class correlation coefficient (ICC) for the test–retest of the SOL H-reflex during rest …

Effects Of Unilateral Voluntary And Electromyostimulation Training On Muscular Strength On The Contralateral Limb, Shi Zhou, Andrew Oakman, Allan J. Davie

Professor Shi Zhou

This study investigated the effects of unilateral electromyostimulation (EMS) versus voluntary isometric strength (VIM) training on knee extension strength of the contralateral limb, a phenomenon termed cross education, in previously untrained healthy young adults. Subjects in EMS (n=10) and VIM (n=10) groups trained with 40 voluntary or evoked isometric knee extensions, at an intensity of 65% of maximum voluntary contraction force (MVC), three sessions per week for four weeks. Before and after training, both legs were tested for MVC on an isokinetic dynamometer, at 0 deg.s-1 (isometric), 60 and 180 deg.s-1 velocities. The results showed that the EMS and VIM …

The Effect Of Patellar Taping On The Onset Of Vastus Medialis Obliquus And Vastus Lateralis Muscle Activity In Persons With Patellofemoral Pain, Wendy L. Gilleard, Jenny Mcconnell, David Parsons

Wendy L Gilleard

Background and Purpose. The purpose of this study was to investigate the effect of patellar taping on the onset of activity of the vastus medialis obliquus muscle (VMO) and the vastus lateralis muscle (VL). Subjects and Methods. Fourteen female subjects with patellar pain walked up and down stairs in two conditions: (1) with the patellofemoral joint of the painful lower extremity taped so that the pain was reduced by at least 50% on a pain provocation test and (2) without patellar taping. Results. When the patellofemoral joint was not taped, there was no difference in the onset of activity between …

Successfully Marketing A Collegiate Baseball Program Within Resource Contraints: A Special Case Of Volunteerism, Anthony Lachowetz, J. Clark, R. Irwin

Anthony J Lachowetz

No abstract provided.

A Prospective Study Of Physician-Observed Concussion During Junior Ice Hockey: Implications For Incidence Rates, Paul Echlin, Charles Tator, Michael Cusimano, Robert Cantu, Jack Taunton, Ross Upshur, Craig Hall, Andrew Johnson, Lorie Forwell, Elaine Skopelja

Andrew M. Johnson

No abstract provided.

Return To Play After An Initial Or Recurrent Concussion In A Prospective Study Of Physician-Observed Junior Ice Hockey Concussions: Implications For Return To Play After A Concussion, Paul Echlin, Charles Tator, Michael Cusimano, Robert Cantu, Jack Taunton, Ross Upshur, Michael Czarnota, Craig Hall, Andrew Johnson, Lorie Forwell, Molly Driediger, Elaine Skopelja

Andrew M. Johnson

Object. The authors investigated return-to-play duration for initial and recurrent concussion in the same season in 2 teams of junior (16–21-year-old) ice hockey players during a regular season. Methods. The authors conducted a prospective cohort study during 1 junior regular season (2009–2010) of 67 male fourth- tier ice hockey players (mean age

A Prospective Study Of Concussion Education In 2 Junior Ice Hockey Teams: Implications For Sports Concussion Education, Paul Echlin, Andrew Johnson, Suzanne Riverin, Charles Tator, Robert Cantu, Michael Cusimano, Jack Taunton, Ross Upshur, Craig Hall, Lorie Forwell, Elaine Skopelja

Andrew M. Johnson

No abstract provided.

Strength And Coordination Training Are Both Effective In Reducing The Postural Tremor Amplitude Of Older Adults, Justin W.L. Keogh, Steve Morrison, Rod Barrett

Justin Keogh

The current study investigated the effect of 2 different types of unilateral resistance training on the postural tremor output of 19 neurologically healthy men age 70–80 yr. The strength- (n = 7) and coordination-training (n = 7) groups trained twice a week for 6 wk, performing dumbbell biceps curls, wrist flexions, and wrist extensions, while the control group (n = 5) maintained their normal activities. Changes in index-finger tremor (RMS amplitude, peak, and proportional power) and upper limb muscle coactivation were assessed during 4 postural conditions that were performed separately with the trained and untrained limbs. The 2 training groups …

Scholar-Baller: Student Athlete Socialization, Motivation, And Academic Performance In American Society, Keith Harrison

Dr. C. Keith Harrison

No abstract provided.

A Critical Race Analysis Of The Hiring Process For Head Coaches In Ncaa College Football, Keith Harrison

Dr. C. Keith Harrison

In this article, we respond to Singer’s (2005) challenge to sport management scholars to consider race-based epistemologies in conducting certain kinds of research in the field, as we use critical race theory (CRT) as a framework to analyze the Black Coaches & Administrators (BCA) Hiring Report Card (HRC) (Harrison & Yee, 2009). The BCA HRC was created as a result of the access discrimination that has historically taken place in college sport (Brooks & Althouse, 2000; Cunningham & Sagas, 2005), which has consequently contributed to the underrepresentation of racial minorities in the head coach position in college football. The HRC …

The History Of The Soldier's Load, Rob Marc Orr

Rob Marc Orr

From the loads carried by the armies of antiquity to today’s modern forces, this article explores and critically analyses soldier load carriage over two millennia. Historical misconceptions appearing in some military documents and literature regarding the context and weight of the soldier’s load are also discussed. The author looks at how, even with changes in logistic practices, technology and the very nature of warfare, the soldier is still a beast of burden and suggests that relying on improved load carriage logistical aides and changes to equipment may not be the answer to this age-old problem.