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Articles 91 - 111 of 111
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 …
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 …
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 …
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 …
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.
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.
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 …
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 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 …
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 …
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 …
The Effect Of Prescribed And Preferred Intensity Exercise On The Relationship Between Self-Efficacy And Perceived Exertion In Older Adults, Keith R. Scotson
The Effect Of Prescribed And Preferred Intensity Exercise On The Relationship Between Self-Efficacy And Perceived Exertion In Older Adults, Keith R. Scotson
Theses: Doctorates and Masters
This study was concerned with acute responses to exercise in people over the age of 50 (N = 80). In particular the relationship between Self-efficacy and perceived exertion during exercise at workloads (a) based on a target heart rate (prescribed intensities) and (b) based on participant preference (preferred intensities) were observed. Perceptual (perceived exertion), Self-efficacy and heart rate responses of low active older participants engaged in either walking or cycle ergometer exercise at preferred and prescribed intensities were also reported. Significant inverse correlations were observed between pre and post exercise Self-efficacy and perceived exertion during acute exercise at prescribed intensities …
Force And Electromyographic Responses To Ergometer Rowing, Darryl A. Turner
Force And Electromyographic Responses To Ergometer Rowing, Darryl A. Turner
Theses: Doctorates and Masters
During many athletic events, fatigue influences the physiological and biomechanical characteristics of performance. For optimal performance in events such as rowing, athletes must maintain a skilfully co-ordinated movement technique. The ability to produce high force outputs during repetitive contractions is influenced by fatigue and dependent on a number of factors including neuromuscular activities. Neuromuscular activation may be expressed by amplitude and frequency characteristics of the electromyographic signal (EMG) sample from the muscle. During sustained isometric contractions, changes in EMG characteristics are related to changes in force, which may be useful in monitoring the fatigue process (Basmajian, 1974: De Luca, 1985). …
The Effect Of Long Term Training On The Bone Mineral Density And Muscle Strength Of Perimenopausal Athletes, Jan Dook
Theses: Doctorates and Masters
The aim of this research was to determine if long term training (20 years+) in a high impact weight bearing sport (netball/basketball: NB/88), a low impact weight-bearing sport (running/ field hockey: GEN) and a non weight-bearing sport, swimming (SWI) produced a positive relationship with regional bone mineral density (BMD) and muscle strength. Method: Three groups of perimenopausal athletes (n=20) plus a control group (CON) (n=20) had Total Body BMD and body composition measured by DEXA (Hologic QDR 2000) and isometric strength of dominant arm flexors and leg extensors by a strain tensiometer connected to a strength chair. Differences between groups …
The Retirement Experiences Of Former Elite Female Netball Players, J. L. Redmond
The Retirement Experiences Of Former Elite Female Netball Players, J. L. Redmond
Theses: Doctorates and Masters
Research to date on retirement from sport has been dominated by the study of United States, male, collegiate sports. Studies within Australia, which has a substantially different community based sport system, are just commencing. This study provided an insight into retirement from sport as it was experienced by former Western Australian elite female netball players. Using a qualitative interpretive approach a three stage interview process was employed to capture the individual experiences of each of the 15 participants. The interviewees were also asked to recommend interventions or strategies that netball associations could employ to assist players in their transition out …