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Articles 721 - 750 of 777
Full-Text Articles in Sports Sciences
Self-Determination Theory In Motivation To Adopt Physical Activity In Older Adults: A Community Based Approach, Alastair Stewart
Self-Determination Theory In Motivation To Adopt Physical Activity In Older Adults: A Community Based Approach, Alastair Stewart
Theses: Doctorates and Masters
Australia has an increasingly aging population with increasing levels of physical inactivity. The potential detrimental effects of these two factors on the health of the community highlight the need to investigate methods to increase physical activity in older Australian adults. The study reported in this thesis formed part of the PATH (Physical Activity Time for Health) Project, a community-based research trial that compared two strategies to increase physical activity in underactive, 60-80 year old men (n = 66) and women (n = 188). Twelve recreation centres were randomised to either a supervised group based walking intervention with behavioural change components, …
Organisational Effectiveness In Selected Grass Roots Sport Clubs In Western Australia, Elissa J. Burton
Organisational Effectiveness In Selected Grass Roots Sport Clubs In Western Australia, Elissa J. Burton
Theses: Doctorates and Masters
Grass roots sport clubs are the foundation for sport in Australia, they cater for mass participation across all ages and are predominantly managed by volunteers. The benefits of being involved in sport and in particular a sport club, both from a health and social capital perspective are well documented (Houlihan & Green, 2006; Hoye & Nicholson, 2008; Stewart, Nicholson, Smith, & Westerbeek, 2004). Australian governments at every level, provide funding for sport to support these benefits and often directly to sport clubs. Yet there is little published research on what makes a grass roots sport club effective (Koski, 1995), particularly …
The Relationship Between Isometric And Dynamic Strength In College Football Players, Michael R. Mcguigan, Jason Winchester
The Relationship Between Isometric And Dynamic Strength In College Football Players, Michael R. Mcguigan, Jason Winchester
Research outputs pre 2011
Previous research has demonstrated the importance of both dynamic and isometric maximal strength and rate of force development (RFD) in athletic populations. The purpose of this study was to examine the relationships between measures of isometric force (PF), RFD, jump performance and strength in collegiate football athletes. The subjects in this study were twenty-two men [(mean ± SD):age 18.4 ± 0.7 years; height 1.88 ± 0.07 m; mass 107.6 ± 22.9 kg] who were Division I college football players. They were tested for PF using the isometric mid thigh pull exercise. Explosive strength was measured as RFD from the isometric …
Does Training With Powercranks™ Affect Economy Of Motion, Cycling Efficiency, Oxygen Uptake And Muscle Activation Patterns In Trained Cyclists?, Jack Burns
Theses: Doctorates and Masters
PowerCranks™ are claimed to increase economy of motion and cycling efficiency by reducing the muscular recruitment patterns that contribute to the resistive forces occurring during the recovery phase of the pedal stroke. However, scientific research examining the efficacy of training with PowerCranks™ is lacking. Therefore, the purpose of this study was to determine if five weeks of training with PowerCranks™ improves economy of motion (EOM), gross efficiency (GE), oxygen uptake (V.O2) and muscle activation patterns in trained cyclists. Sixteen trained cyclists were matched and paired into either a PowerCranks™ (PC) or Normal Cranks (NC) training group. Prior to training, all …
Neuromuscular Fatigue And Endocrine Responses In Elite Australian Rules Football Players, Stuart J. Cormack
Neuromuscular Fatigue And Endocrine Responses In Elite Australian Rules Football Players, Stuart J. Cormack
Theses: Doctorates and Masters
The first purpose of this research was to establish the reliability of numerous measures obtained from a single and short duration repeated countermovement jump (CMJ) utilising a portable forceplate (Experimental Studies 1 and 2). Secondly, the response of reliable CMJ variables and T, C and T:C to a single elite level ARF match was assessed to identify the pattern of response and highlight those measures with the greatest potential for usefulness as monitoring tools across longer periods (Experimental Study 3). Finally, those variables identified as most valuable in Experimental Study 3 in addition to T, C and T:C; were measured …
The Relationship Between Training Load And Incidence Of Injury And Illness Over A Pre-Season At An Australian Football League Club, Benjamin Piggott
The Relationship Between Training Load And Incidence Of Injury And Illness Over A Pre-Season At An Australian Football League Club, Benjamin Piggott
Theses: Doctorates and Masters
In any competitive sporting environment, it is crucial to a team's success to have the maximum number of their players free from injury and illness and available for selection in as many games as possible throughout the season. The training programme of the club, and therefore training load, can have an impact on the incidence of injury and illness amongst the players. The purpose of this study was to investigate the relationship between the training load and the incidence of injury and illness over an entire pre-season at an Australian Football League (AFL) club. Sixteen players were subjects; all full …
The Effect Of Concurrent Resistance And Endurance Training On Physiological And Performance Parameters Of Well Trained Endurance Cyclists, Gregory T. Levin
The Effect Of Concurrent Resistance And Endurance Training On Physiological And Performance Parameters Of Well Trained Endurance Cyclists, Gregory T. Levin
Theses: Doctorates and Masters
Purpose: To investigate the effect of concurrent resistance and cycle training on the physiological and performance characteristics of well trained cyclists. Secondly, this study aimed to investigate the reliability of a new cycling time-trial test that incorporated repeated high-intensity sprint segments, both prior to and after a training intervention, with well trained cyclists.
Reliability Of Kinematics And Kinetics Associated With Horizontal Single Leg Drop Jump Assessment: A Brief Report, M. Stalbom, D.J. Holm, John Cronin, J.W.L. Keogh
Reliability Of Kinematics And Kinetics Associated With Horizontal Single Leg Drop Jump Assessment: A Brief Report, M. Stalbom, D.J. Holm, John Cronin, J.W.L. Keogh
Research outputs pre 2011
Determining the reliability of a unilateral horizontal drop jump for displacement provided the focus for this research. Eighteen male subjects were required to step off a 20cm box and land on a force plate with one leg and thereafter jump for maximal horizontal displacement on two different days. Dependent variables from the jump assessment included mean and peak vertical (V) and horizontal (H) ground reaction forces (GRF) and impulses, horizontal displacement and contact time. The between-trial variability of all kinematic and kinetic measures was less than 7%. The most consistent measure over both trials was the horizontal displacement jumped (1.2 …
Changes In Power Assessed By The Wingate Anaerobic Test Following Downhill Running, Carmel Nottle, Kazunori Nosaka
Changes In Power Assessed By The Wingate Anaerobic Test Following Downhill Running, Carmel Nottle, Kazunori Nosaka
Research outputs pre 2011
No abstract provided.
Assessment Of Static Balance Ability In An Athletic Pediatric Population, Cailyn Rogers
Assessment Of Static Balance Ability In An Athletic Pediatric Population, Cailyn Rogers
Theses : Honours
There is a large amount of conjecture surrounding the reliability of methods of balance assessment and the outcome variables used to assess balance in pediatric populations. There has also been limited research conducted on the balance ability of an athletic pediatric population, and the factors which may affect that ability. The purpose of this research is firstly to determine the reliability of postural sway measures used to assess balance including: average displacement of the centre of pressure in the mediolateral and anterior-posterior directions relative to both the centre of the plate and the centre of the base of support; peak …
A Series Of Studies On Professional Rugby League Players, Daniel G. Baker
A Series Of Studies On Professional Rugby League Players, Daniel G. Baker
Theses: Doctorates and Masters
Rugby league football is a popular game in Australia, which appears to rely heavily upon strength, power, speed and endurance due to the nature of the phyiscal contacts. In an effort to discern the importance of upper body strength, power speed and endurance to rugby league players a retrospective data analysis was performed. Three areas of investigation were: 1) the testing of upper body physical qualities of strength, power, speed and strength-endurance and their significance to playing status in the elite national first-division (NRL), second-division (SRL) and third-division (CRL), 2) the effect of acute training variable manipulations upon power output …
Assessment And Enhancement Of Lower Extremity Power Of Athletes, Naruhiro Hori
Assessment And Enhancement Of Lower Extremity Power Of Athletes, Naruhiro Hori
Theses: Doctorates and Masters
STUDY 1: RELIABILITY OF PERFORMANCE MEASUREMENTS DERIVED FROM GROUND REACTION FORCE DATA DURING COUNTERMOVEMENT JUMP AND INFLUENCE OF SAMPLING FREQUENCY. STUDY 2: COMPARISON OF FOUR DIFFERENT METHODS TO MEASURE POWER OUTPUT DURING THE HANG POWER CLEAN AND THE WEIGHTED JUMP SQUAT. STUDY 3: DOES PERFORMANCE OF HANG POWER CLEAN DIFFERENTIATE PERFORMANCE OF JUMPING, SPRINTING, AND CHANGING OF DIRECTION? STUDY 4: COMPARISON OF WEIGHTED JUMP SQUAT TRAINING WITH AND WITHOUT ECCENTRIC BRAKING.
Sports Science Roundtable: Does Sports Science Research Influence Practice?, David Bishop, Angus Burnett, Damien Farrow, Tim Gabbett, Robert Newton
Sports Science Roundtable: Does Sports Science Research Influence Practice?, David Bishop, Angus Burnett, Damien Farrow, Tim Gabbett, Robert Newton
Research outputs pre 2011
As sports scientists, we claim to make a signifi cant contribution to the body of knowledge that infl uences athletic practice and performance. Is this the reality? At the inaugural congress of the Australian Association for Exercise and Sports Science, a panel of well-credentialed academic experts with experience in the applied environment debated the question, Does sports-science research influence practice? The fi rst task was to defi ne “sports-science research,” and it was generally agreed that it is concerned with providing evidence that improves sports performance. When practices are equally effective, sports scientists also have a role in identifying practices …
Core Temperature And Hydration Status During An Ironman Triathlon, Paul B. Laursen, Rob Suriano, Marc Quod, Hamilton Lee, Chris Abbiss, Kazunori Nosaka, David Martin, David Bishop
Core Temperature And Hydration Status During An Ironman Triathlon, Paul B. Laursen, Rob Suriano, Marc Quod, Hamilton Lee, Chris Abbiss, Kazunori Nosaka, David Martin, David Bishop
Research outputs pre 2011
No abstract provided.
Reliability Of Normalisation Methods For Emg Analysis Of Neck Muscles, Kevin Netto, Angus F Burnett
Reliability Of Normalisation Methods For Emg Analysis Of Neck Muscles, Kevin Netto, Angus F Burnett
Research outputs pre 2011
Acceptable reliability of normalisation contractions in electromyography (EMG) is paramount for testing conducted over a number of days or if normal laboratory strength testing equipment is unavailable. This study examined the reliability of maximal voluntary isometric contractions (MVIC) and sub-maximal (60%) isometric contractions for use in neck muscle EMG studies. Surface EMG was recorded bilaterally from eight sites around the neck at C4/5 level from five healthy male subjects. Subjects performed MVIC and sub-maximal normalisation contractions using an isokinetic dynamometer (ID) and a portable cable dynamometer with attached strain gauge (PCD) in addition to a MVIC against a manual resistance …
Effects Of Hypoxia On Exercise Induced Muscle Damage, Trevor M. Farr
Effects Of Hypoxia On Exercise Induced Muscle Damage, Trevor M. Farr
Theses: Doctorates and Masters
The present study investigated the hypothesis that maximal voluntary contractions (MVC) peak torque, VJ, muscle tenderness, and plasma creatine activity would be significantly less for the condition that subjects were exposed to hypoxic (H) condition for 4 hours after eccentric exercise compared with the normoxic (N) condition.
An Investigation Of The Effect Of Exercised Arm, Training Status, And Racial Background On Changes In Markers Of Muscle Damage Following Maximal Eccentric Exercise Of The Elbow Flexors, Michael J. Newton
Theses: Doctorates and Masters
Despite the substantial body of research accumulated on exercise-induced muscle damage, there remain several areas that warrant further investigation. Study groups comprised of individuals from differing racial background and /or training status have the potential to influence the intra-group variability in damage markers following eccentric exercise. In addition, if a contralateral arm model is employed, intra- and inter-group variation could be influenced by the formation of groups based on limb dominance and /or the order in which the arms are exercised. Currently there is a dearth of research addressing these factors, however, these types of studies are important as they …
Performing Successfully In The Heat At The 2004 Olympic Games In Athens: Which Active Cooling Strategies Represent Best Practice For Endurance Athletes, Marc Quod
Theses : Honours
Previous research using athletes has documented that precooling can improve endurance performance, especially in warm conditions. However, research comparing performance following different cooling techniques which are incorporated into a prerace routine is rare. Purpose: The purpose of this study was to compare the effects of two precooling techniques on cycling time trial performance in warm conditions. Methods: Six endurance trained, regionally competitive cyclists completed one maximal graded exercise test (V02peak 71.4 ±3.2 ml’kg-1min-1) and four ~40 min laboratory cycling time trials in a heat chamber (34.3 ± 1.1°C; 41.2 ± 3.0% relative humidity (rh)) using …
Alteration Of Immune Function In Women Collegiate Soccer Players And College Students, Praveen Putlur, Carl Foster, Jennifer A. Miskowski, Melissa K. Kane, Sara E. Burton, Timothy P. Scheett, Michael R. Mcguigan
Alteration Of Immune Function In Women Collegiate Soccer Players And College Students, Praveen Putlur, Carl Foster, Jennifer A. Miskowski, Melissa K. Kane, Sara E. Burton, Timothy P. Scheett, Michael R. Mcguigan
Research outputs pre 2011
The purpose of this study was to monitor the stress-induced alteration in concentrations of salivary immunoglobulin (S-IgA) and cortisol and the incidence of upper respiratory tract infections (URTI) over the course of a 9-week competitive season in college student-athletes and college students. The subjects consisted of 14 NCAA Division III collegiate female soccer athletes (19.8 ± 1.0 years, mean ± SD) and 14 female college students (22.5 ± 2.6 years). Salivary samples were collected for 9 weeks during a competitive soccer season. S-IgA and cortisol concentrations were determined by enzyme linked immunosorbent assay (ELISA). A training and performance questionnaire was …
The Influence Of Vibration On Muscle Activation And Rate Of Force Development During Maximal Isometric Contractions, Brendan Humphries, Geoff Warman, Jason Purton, Tim L.A Doyle, Eric Dugan
The Influence Of Vibration On Muscle Activation And Rate Of Force Development During Maximal Isometric Contractions, Brendan Humphries, Geoff Warman, Jason Purton, Tim L.A Doyle, Eric Dugan
Research outputs pre 2011
At present there appears to be a need for research conducted on the effects of vibration on the contractile ability of skeletal muscle tissue. The aim of this study was to address this issue by examining the effects of a superimposed muscle/tendon vibration at 50.42±1.16 Hz (acceleration 13.24 ± 0.18ms-2: displacement ≈5mm) on muscular activation and maximal isometric contraction. Sixteen participants with a mean age, body mass, and height of 22 ± 4.4 years, 73.2 ± 11.7 kg and 173.1 ± 9.7 cms, respectively, were recruited for this study. Electromyography and accelerometry from the rectus femoris, and maximal …
An Electromyographic Comparison Of Neck Conditioning Exercises, Jemma L. Coleman
An Electromyographic Comparison Of Neck Conditioning Exercises, Jemma L. Coleman
Theses : Honours
It is known that sustained muscular contractions can cause muscular pain, which explains the prevalence of neck pain of employees in static and semi-static work such as dentistry, sewing machine and computer operation. Additionally, exposure to high and sustained gravitational forces in high performance combat pilots is another source of neck pain in the workplace. Individuals with neck pain have been found to show decreased neck strength, in particular neck flexor strength has been found to be less than that of the general population. It has been suggested that neck-conditioning exercises may be useful in the prevention and rehabilitation of …
Examination Of Multiple Fatigue Models During Prolonged Cycling In Hot Versus Cold Climates, Chris Abbiss
Examination Of Multiple Fatigue Models During Prolonged Cycling In Hot Versus Cold Climates, Chris Abbiss
Theses : Honours
Much of the previous research into understanding fatigue during prolonged cycling has found that endurance performance may be limited by numerous physiological, biomechanical, environmental, mechanical, and psychological factors. From the literature presently available, fatigue would appear to be task- and condition- specific. Studies demonstrating this, however, are limited. The purpose of this thesis, therefore, was to examine variables from multiple fatigue models concurrently to determine which variables were best related to fatigue during prolonged endurance exercise in hot versus cold conditions. Following a 100-km familiarization time trial (22°C) , nine endurance trained male cyclists ( VO2max = 62.1 ± …
The Effects Of Movement Based Interventions On Doms And Muscle Damage Following Eccentric Exercise, Zainal A. Zainuddin
The Effects Of Movement Based Interventions On Doms And Muscle Damage Following Eccentric Exercise, Zainal A. Zainuddin
Theses: Doctorates and Masters
Delayed onset muscle soreness (DOMS) is a common symptom experienced by most adults following unaccustomed exercise. It is known that DOMS is peculiar to eccentric exercise that results in muscle damage which is characterized by prolonged loss of muscle function. DOMS and subsequent impaired muscle function, reduces the ability to maximize performance of daily living tasks, and has negative effects on sports adherence and activity based healthy lifestyle. Thus, treatments to ameliorate DOMS and enhance recovery of muscle function are important.
Players' And Coaches' Perceptions Of Soccer Coaches' Specific Leadership Behaviours, Fadi Y. Ma'ayah
Players' And Coaches' Perceptions Of Soccer Coaches' Specific Leadership Behaviours, Fadi Y. Ma'ayah
Theses: Doctorates and Masters
This research has examined players' and coaches' perceptions of the specific leadership behaviours of soccer coaches. The research was comprised two studies, the first a quantitative study and the second a qualitative study. Both studies focused on researching Yuki's (1989, 1994) 14 specific leadership behaviours. These are: (a) team building and conflict management, (b) developing, (c) supporting, (d) rewarding, (e) recognising, (I) motivating and inspiring, {g) delegating. (h) consulting, (i) problem solving, (j) planning, (k) monitoring, (1) clarifying, (m) informing, and (n) networking. Subjects for Study I were 400 randomly selected soccer players and 40 randomly selected soccer coaches. The …
Proprioceptive And Muscle Activation Changes In Triceps Surae Associated With Exercise Induced Muscle Damage, Carmel Nottle
Proprioceptive And Muscle Activation Changes In Triceps Surae Associated With Exercise Induced Muscle Damage, Carmel Nottle
Theses: Doctorates and Masters
The aim of this thesis was to examine proprioceptive and activation changes that occur in triceps surae in response to exercise induced muscle damage (EIMD). While proprioceptive changes have previously been demonstrated in association with EIMD, the present investigation examined the role of a number of potential contributing factors to these changes, following both single and repeated bouts of eccentric exercise.
The Effect Of Strength Training On 3km Performance In Recreational Female Endurance Runners, Cherina M. Rice
The Effect Of Strength Training On 3km Performance In Recreational Female Endurance Runners, Cherina M. Rice
Theses: Doctorates and Masters
The purpose of this study was to investigate whether a strength training program, as an additive to endurance training, would cause significant improvements in 3km run time in a group of recreational female endurance runners when compared to endurance training only. Subjects were 16 active women, randomly assigned to either a running only group (control group, n=9) or a combined strength and endurance training group (experimental group, n=7). The ten-week training program for both groups consisted of an endurance running program three times per week, which included steady-state endurance running, tempo runs and interval training. The experimental group however, participated …
The Effects Of A Heavy Resistance Training Intervention Of The Plantar Flexors On The Recovery Of Strength, Power, Acceleration, And Agility In Recreational Athletes, Naomi A. Forrest
Theses: Doctorates and Masters
Resistance training is a highly utilised form of exercise that is used to develop strength, power, speed and muscular endurance. Although it is associated with many positive benefits it also has some potentially unfavourable effects. These are manifested in the form of altered muscle function through the effects of muscle fatigue and exercise induced muscle damage. Various aspects muscle fatigue and damage have been well studied, however research into the effects of these on tests of strength, power, acceleration and agility is sparse. Therefore the aim of this study was to investigate the effects of a heavy resistance intervention on …
Examination Of The Magnitude And Timing Of Hip Flexion Torque In High Degree Of Difficulty Forward Somersault Dives On The 3m Springboard, Brendon Ferrier
Examination Of The Magnitude And Timing Of Hip Flexion Torque In High Degree Of Difficulty Forward Somersault Dives On The 3m Springboard, Brendon Ferrier
Theses: Doctorates and Masters
While there has been much research published on the kinematics and kinetics of forward dives from a springboard, very little has been done on the effect the timing and magnitude of hip flexion torques has on forward dives. The purpose of this study was to investigate the relationship between the timing and magnitude of hip flexion torques prior to the take-off and the vertical velocity at take-off in high demand rotational forward dives. Twenty-six elite divers (14 males and 12 females) competing in the United Kingdom leg of the 2001 FINA Diving Grand Prix performed high demand rotational dives. The …
The Effect Of Eccentric Exercise Velocity On Selected Measures Of Muscle Function And Soreness Of The Human Elbow Flexors In Untrained Males And Females, Dale W. Chapman
The Effect Of Eccentric Exercise Velocity On Selected Measures Of Muscle Function And Soreness Of The Human Elbow Flexors In Untrained Males And Females, Dale W. Chapman
Theses: Doctorates and Masters
Eccentric contractions, where a muscle is repeatedly lengthened while generating torque, result in decreased muscle function and muscle soreness. This study was designed to determine whether there was a difference in muscle response of the elbow flexors from untrained subjects (n = 12) between a bout of high intensity eccentric exercise at 30°•s-1 (LVE) compared to the equivalent at 210°•s-1 (HVE). Subjects performed 120 seconds of eccentric exercise of the elbow flexors using a Cybex 6000 Isokinetic Dynamometer. At 30°-s-1, a total of 30 repetitions were required whilst at 210°•s-1, 210 contractions were performed (at a 1:7 work/rest ratio). Both …
Changes In Muscle Function And Motorneuron Excitability Of The Triceps Surae Following A Bout Of Fatiguing Eccentric Exercise, Mikala Pougnault
Changes In Muscle Function And Motorneuron Excitability Of The Triceps Surae Following A Bout Of Fatiguing Eccentric Exercise, Mikala Pougnault
Theses : Honours
A reduction in capacity of the neuromuscular system associated with exercise can occur from a wide range of physiological and psychological factors. Many researchers have investigated neural activation during exercise, or the effects of muscle damage associated with eccentric exercise, but few have studied the prolonged effects of a bout of eccentric exercise on strength and motorneuron excitability. Eleven male and female subjects (aged 20-43 years) were tested to determine the effects of a fatiguing bout of eccentric exercise upon maximal isometric plantarflexion strength, motorneuron excitability, and neural activation of the soleus (SOL) and medial gastrocnemius (MG). The exercise consisted …