Medicine and Health Sciences Commons^™

The Effect Of Maximal Isometric Training On Doublet-Induced Force Enhancement And Its Relationship With Changes In Voluntary Rate Of Force Development, David Vernon Murray

Theses: Doctorates and Masters

Motor unit double discharges (i.e. doublets), which are excitatory potentials that occur at shorter-than-normal intervals (e.g. 5-10 ms) during normal muscle activation, are known to cause muscle force to exceed that predicted from a standard, linear summation of twitch forces. However, although a marked increase in the occurrence of motor unit doublets at the onset of a contraction has been observed after explosive-type exercise training, and has been correlated with changes in RFD (Van Cutsem et al., 1998), little is known about the influence of strength training on the physiological and biomechanical benefits derived from the phenomenon. The present research …

Resting Energy Expenditure Using Indirect Calorimetry In Individuals With Moderate To Low Burns: A Pilot Study Of Associated Factors, Patient Acceptability And Comparison With Predictive Equations, Janica Bell

Theses : Honours

Background: Energy expenditure increases following a burn injury. The extent of hypermetabolism is dependent on a range of factors including burn total body surface area. Moderate to low burn injuries (< 15% TBSA) represent majority of hospital admissions for burn injuries however, their energy expenditure remains unpublished. While indirect calorimetry (IC) is the gold standard for determining energy requirements, less accurate predictive equations are often used in practice. Acceptability of IC from a burn patient perspective has not been published.

Aim: To describe the resting energy expenditure (REE) of patients with a moderate to low burn injury using IC; compare measured REE to predictive equations; and determine the patient acceptability of IC.

Methods: Demographic, anthropometric and dietary data were collected for five male and three female burn patients. REE was determined using indirect calorimetry (Ultima CPX) and five predictive methods (Schofield, Harris-Benedict, Toronto and the Ireton-Jones …

The Creation And Validation Of A Youth Fundamental Hitting Scale: The Assessment Of Youth Baseball And Softball Hitting Fundamentals And The Perceived Psychological Barriers To Hitting A Pitched Ball, Andrew Walsh

Theses: Doctorates and Masters

The primary purpose of the thesis was to create a hitting scale for youth players that assess the fundamentals of a baseball swing. Secondly, the purpose of this thesis was to determine the interactions between the changes in anxiety, perceived competence and fear variables have with actual hitting competence over a four week sport specific training program.

Low Back Pain In Schoolgirl Rowers: Prevalence, Bio-Psycho-Social Factors And Prevention, Debra Perich

Theses: Doctorates and Masters

Rowing is one of the largest participant sports on the Independent Girls‟ Schools Sporting Association (IGSSA) in Western Australia with approximately 400 participants competing every year. Rowing is an extra-curricular sport offered to girls 14 years of age and above, with these girls competing and training in both sweep and scull boats. Whilst the benefits of regular physical activity and exercise are well known, musculoskeletal problems have been documented in rowing. In particular, clinical evidence and previous research suggests that low back pain (LBP) is common in rowers. Adolescents who suffer from LBP are at an increased risk of recurrent …