Browsing Kinesiology and Health Sciences by Author "Callaghan, Jack P."
Now showing items 1-7 of 7
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Automated Histological Analysis System for Quantifying Microstructural Damage Accumulation to the Annulus Fibrosus
Ben Daya, Ibrahim; Noguchi, Mamiko; Callaghan, Jack P.; Wong, Alexander (Kitchener-Waterloo Vision and Imaging Society, 2016)In this paper, we proposed an automated histological analysis system for quantifying microstructural damage accumulation to the annulus fibrosus. This system takes in a digital histology image and uses Gaussian mixture ... -
Effect of obesity on knee joint biomechanics during gait in young adults
MacLean, Kathleen F.E.; Callaghan, Jack P.; Maly, Monica R. (Taylor & Francis, 2016-04-26)While there are many comorbidities associated with obesity, one of the more poorly understood is knee osteoarthritis through obesity. The purpose of this study was to compare the kinematics and kinetics of gait and cumulative ... -
The impact of compressive force magnitude on the in vitro neutral zone range and passive stiffness during a flexion–extension range of motion test
Noguchi, Mamiko; Gooyers, Chad Edward; Holmes, Michael W.R.; Callaghan, Jack P. (Taylor & Francis, 2015-02-23)The objective of this work was to examine the influence of compressive force magnitude on a functional spinal unit’s (FSU) flexion–extension neutral zone measured during pure moment (PM) tests. Each porcine cervical FSU ... -
Knee power is an important parameter in understanding medial knee joint load in knee osteoarthritis.
Calder, Kristina M.; Acker, Stacey M.; Arora, Neha; Beattie, Karen A.; Callaghan, Jack P.; Adachi, Jonathan D.; Maly, Monica R. (Wiley, 2014-05-01)Objective To determine the extent to which knee extensor strength and power explain variance in knee adduction moment (KAM) peak and impulse in clinical knee osteoarthritis (OA). Methods Fifty-three adults (mean ± SD age ... -
Low back pain development differentially influences centre of pressure regularity following prolonged standing
Fewster, Kayla M.; Gallagher, Kaitlin Marie; Howarth, Samuel H.; Callaghan, Jack P. (Elsevier, 2017-06-27)Occupations requiring prolonged periods of static standing are associated with the development of low back pain (LBP). Certain individuals are susceptible to LBP development during prolonged standing (pain developers, PDs) ... -
Precision based guidelines for sub-maximal normalisation task selection for trunk extensor EMG
Jackson, Jennie A.; Erik Mathiassen, Svend; Callaghan, Jack P.; Dempsey, Patrick G. (Elsevier, 2017-07-01)Aim The object of this study was to quantify the contribution of sub-maximal normalisation to the overall variance of exposure parameters describing erector spinae (ES) activity, and to provide guidelines for task selection ... -
A procedure for determining parameters of a simplified ligament model
Barrett, Jeffery; Callaghan, Jack P. (Elsevier, 2017-11-03)A previous mathematical model of ligament force-generation treated their behavior as a population of collagen fibres arranged in parallel. When damage was ignored in this model, an expression for ligament force in terms ...