Faculty of Health Sciences
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Item The relationship between myofascial trigger points, total work and other recorded measurements of the vastus lateralis and vastus medialis, in long-distance runners with patellofermoral pain syndrome(2005) Daly, Gail; De Busser, Nikki Lauren; Korporaal, Charmaine MariaTo document the relationship between total work and myofascial trigger points in the vastus lateralis and vastus medialis portion of the quadriceps femoris muscle, whilst providing baseline graphs of these muscles with the use of a Cybex 700 Isokinetic Dynanometer in long distance runners both with and without patellofemoral pain syndrome. Methods: A quantitative, non-intervention clinical exploratory study. Fifty participants were divided into two groups, Group A (40 symptomatics) and Group B (10 asymptomatics). Both groups were screened for vastus lateralis and vastus medialis trigger points. Subjective data was obtained from Group A only, using the Numerical Pain Rating Scale and the Patient Specific Functional Scale. Objective data was obtained from both groups using the algometer, Myofascial Diagnostic Scale, and the Cybex 700 Isokinetic Dynanometer. For descriptive analysis frequency tabulations, box and whisker plots were used to display distributions graphically. Comparisons of categorical and quantitative variables between independent groups were run using chi square and Mann-Whitney testing consecutively. Finally Spearman’s correlation, multivariate generalized linear modelling and repeated measures ANOVA were also used. All statistical analysis was completed at the 95% (p<0.05) level of confidence.Item An investigation into the effectiveness of dry needling of myofascial trigger points on total work and other recorded measurements of the vastus lateralis and vastus medialis muscles in patellofermoral pain syndrome in long distance runners(2005) Weyer-Henderson, Donna; De Busser, Nikki Lauren; Korporaal, Charmaine MariaAccording to Wood (1998), patellofemoral pain syndrome (PFPS) refers to a syndrome that comprises of the following signs and symptoms: anterior knee pain, inflammation, imbalance, instability, or any combination thereof. Prevailing literature suggests that the presence of myofascial trigger points (MFTP’s) in quadriceps femoris (QF) muscle could result in a combination of the following signs and symptoms: - Retro- or peripatella pain, - Weakness of the quadriceps muscle (Chaitow and DeLany, 2002) - Loss of full lengthening (Travell and Simons, 1983:248-250) The aetiology of PFPS is poorly understood (Kannus et al. 1999). The current trend in literature suggests an extensor mechanism dysfunction as the most probable aetiology (Galantly et al., 1994; Juhn, 1999). There appears to be a clinical overlap between the two syndromes, in terms of an extensor mechanism dysfunction and of signs and symptoms. The aim of this investigation was to evaluate the role of active myofascial trigger points in the vastus lateralis (VL) muscle as perpetuating, causative or concomitant factors in the alteration of VL/VM Total Work (TW) in PFPS in distance runners.