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The Natural History Of Modic Changes - A 5- And 15-Year Follow-Up Study, Parnian Saremi

Electronic Thesis and Dissertation Repository

Modic changes (MCs), defined as bone marrow lesions adjacent to the vertebral endplate seen on MRI, have been associated with back pain. There are different types of MCs, with different histopathological correlates. This community-based study sample comprised 110 men from the Twin Spine Study, with baseline, 5-year, and 15-year follow-up MRIs. Following training and reliability testing, 1320 endplates (T12-S1) were evaluated for MC presence, type, and dimensions at each time point. Results demonstrated that Type 2 Modic Changes (MC2) were the most common type, with approximately half located at the two lowest disc levels. However, Type 1 Modic Changes (MC1) …

Functional Performance Testing In Ice Hockey: The Role Of The Single Leg, Medial Countermovement Jump, Anthony S. Donskov

Electronic Thesis and Dissertation Repository

Due to the physical nature of the game, injuries are common in ice hockey. Injury rates have been difficult to interpret due to the inconsistencies in the definitions of injury and athlete exposure. Consensus statements on injury definitions have been developed for sports such as soccer and rugby but have not been established in ice hockey. Furthermore, many different off-ice tests are performed, but a hockey-specific performance test has not been promoted. Accordingly, the objective for this thesis was to investigate injury rates, injury definition, athlete exposure and injury type in men’s ice hockey, and providing information on a practical …

Assessment Of Intrinsic Hand Neuromuscular Physiology, Philemon Tsang

Electronic Thesis and Dissertation Repository

Alterations to the peripheral nervous system and neuromuscular physiology may impact hand function in a typical or clinical population, such as individuals with ulnar neuropathy. The mechanisms that influence these positive and negative changes are still not well understood. The three studies within my thesis aim to validate the reliability of decomposition-based quantitative electromyography (DQEMG) measurements and explore the changes in intrinsic hand neuromuscular physiology in a typical aging population and individuals recovering from a surgical intervention for severe ulnar neuropathy.

The purpose of the first study was to determine the test-retest reliability of near-fibre (NF) jiggle, a measure of …

Feasibility And Reliability Of A Commercially Available Stretch-Sensitive Sensor For Neck Movement, Iyad Al-Nasri

Electronic Thesis and Dissertation Repository

The ability to move the neck is usually a good indicator of neck health. However, the tools currently available to measure neck range of motion rely on gravity and the clinician's ability to accurately line the instruments on specific landmarks of the body. This study explored whether a commercially available wearable sensor, C-Stretch® that is flexible and lightweight can capture the functional performance of cervical motion across testing sessions. Furthermore, an assessment of the C-Stretch® against Aurora NDI, an electromagnetic tracking system was explored to determine the feasibility of transforming raw capacitance data into degrees of motion. Finally, a survey …

Validity And Reliability Of The Clinician Rated Drop Vertical Jump Scale In Patients Following Anterior Cruciate Ligament Reconstruction, Morgan Jennings

Electronic Thesis and Dissertation Repository

The purpose of this study was to evaluate the validity and reliability of the Clinician Rated Drop Vertical Jump Scale (CR-DVJS) in a population of patients following anterior cruciate ligament reconstruction (ACLR). Patients completed two drop vertical jump tasks at 6 and/or 12-months post-operative. One task was recorded using a motion capture system. Four individuals of varying clinical experience served as raters for the CR-DVJS. Rater scores of valgus collapse did not correlate strongly with motion capture measures of knee abduction moment or angle. However, CR-DVJS scores of trunk and knee flexion did demonstrate an association with 3D measures of …

Development And Initial Validation Of Novel Multi-Planar Neck Strength Assessment And Neuromuscular Training Protocols, Theo H. Versteegh

Electronic Thesis and Dissertation Repository

Concussions are a serious health concern in today’s active society. There are many contributing factors to concussions but one that is starting to draw significant attention is the potential role the neck muscles play in mitigating concussive forces. There is evidence that stronger neck muscles may decrease an individual’s concussion risk. In order to fully define this role, an appropriate outcome measure for assessing neck strength is required. Once this is established, methods of training to improve neck strength can be evaluated for their effect on neck strength and subsequently effect on concussion risk. This thesis included three studies. Chapter …

Inter-Rater Reliability Of The Mckenzie System Of Mechanical Diagnosis And Therapy In The Examination Of The Knee, Sean Willis

Electronic Thesis and Dissertation Repository

Objective: The purpose of this thesis was to investigate the inter-rater reliability of the McKenzie System of Mechanical Diagnosis and Therapy (MDT) when classifying patients with musculoskeletal knee pain using clinical vignettes. Methods: This study was divided into two phases. First, ten clinicians experienced in the use of MDT were randomly recruited to write a total of 60 clinical vignettes based upon the initial assessment of past patients with knee pain. Second, six different MDT raters were recruited to rate 53 selected vignettes and reliability was determined using Fleiss Kappa. Results: There was “substantial agreement” among six MDT raters …

Psychometric Evaluation Of Self-Report Pain And Disability Measures For Elbow Disorders, Joshua Vincent

Electronic Thesis and Dissertation Repository

Elbow disorders are one of the commonest musculoskeletal problems with a prevalence of 9% in men and 8.1% in women. Patient centered care is the goal of current healthcare delivery models; but optimizing treatment outcome and clinical research is hampered by a lack of outcome measures. Since pain and disability resulting from elbow disorders are experienced differently across individuals, they are best captured by patient reported outcome measures (PROM).

PROMs like the Patient-rated Elbow Evaluation (PREE); American Shoulder and Elbow surgeons – Elbow form (pASES-e) have been developed for use in elbow disorders, but important questions remain about their measurement …