Females with patellofemoral pain syndrome have weak hip muscles: a systematic review

Prins, Maarten R.; Wurff, Peter van der

doi:10.1016/s0004-9514(09)70055-8

Cited by 234 publications

(174 citation statements)

References 32 publications

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“…Contrastively, muscular change has known to affect functional alignment in the frontal plane, which eventually influences patellofemoral kinetics. The hip muscle, especially gluteus medius weakness leads to adduction at the hip joint, which in turn increases genu valgum functionally, and this has shown to be correlated with increase of PFP (Alba-Martin et al, 2015;Bolgla et al, 2008;Dierks et al, 2008;Herrington, 2014;Myer et al, 2014;Powers et al, 2003;Prins & van der Wurff, 2009;Salsich et al, 2012). These all together tell that interplay of skeletal alignment and muscular action is …”

Section: Discussionmentioning

confidence: 99%

Relationship of the Frontal Knee Alignment Measured by the HKA-Angle with the Relative Activation of the Quadriceps Muscles

Kim¹,

Jinsol²,

Yesol³

et al. 2016

Journal of The Korean Society of Integrative Medicine

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Purpose: The purpose of this study was to compare Hip-Knee-Ankle(HKA) angle and muscle activation ratio between vastus medialis(VM), rectus femoris(RF), and vastus lateralis (VL), and by this, to examine their relationship. It is aimed to explore how the activation ratio among the muscles involved in patellofemoral kinetics would vary in relation with the frontal alignment of the lower extremity.Subjects and Methods: 26 healthy subjects were recruited for the study. The HKA angles were measured with radiograph. The VM, RF, VL muscle activation level were measured by surface electromyography while each participant performed 4 different types of movement (isometric knee extension, squat, ambulation, step-up) and VM/RF, VM/VL, RF/VL ratios were calculated.Pearson correlation was used to estimate the relationship between the HKA angle and the muscle ratio.Results: There was significant moderate correlation between HKA angle and VM: RF on the left side during ambulation (p<0.05). Moderate correlations were also observed during step-up and squat with less significance (p<0.1). Conclusion:The frontal alignment of the knee measured by the HKA angle was conditionally associated with muscle activation ratio between VM and RF (VM:RF); On the left, during ambulation, step-up, and squat, the more valgus knee tended to correlate with the more VM muscle activation ratio, which is expected to induce more stabilizing effect to the patella and its tracking. It suggests that the frontal alignement measured by the HKA-angle can affect PF kinetics. It also indicates a possibility that increase in valgus alignment of the knee, by the HKA measurement, may not act unfavorably to generate PFP.

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Section: Discussionmentioning

confidence: 99%

Relationship of the Frontal Knee Alignment Measured by the HKA-Angle with the Relative Activation of the Quadriceps Muscles

Kim¹,

Jinsol²,

Yesol³

et al. 2016

Journal of The Korean Society of Integrative Medicine

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“…12 NOS has been identified by the Cochrane Collaboration as 1 of the 2 most useful quality assessment tools for nonrandomized studies 13 and has been used frequently to assess the quality of nonrandomized studies. [14][15][16] The NOS uses a star rating system, with stars assigned for adhering to the following criteria.…”

Section: Quality Assessmentmentioning

confidence: 99%

Adolescent Health and Adult Education and Employment: A Systematic Review

2015

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OBJECTIVE: Poor health in adolescence has the potential to disrupt education and employment pathways. This study is the first systematic review of the literature examining education and employment outcomes in adulthood of poor adolescent mental and physical health. METHODS:We conducted searches using a standardized search protocol in 8 electronic databases: PsycINFO, Medline, Embase, ERIC, British Education Index, Australian Education Index, Social Sciences Citation Index, and CINAHL Plus. We identified studies that longitudinally compared adult education and employment outcomes of those with an adolescent chronic condition of clinical severity with healthy controls. We conducted metaanalyses using odds ratios (for dichotomous variables) and Cohen's d (for continuous variables) as our main summary statistics. RESULTS:We identified 27 studies incorporating 70 relevant analyses. Our meta-analyses suggested that overall, poor health in adolescence was associated with poorer education and employment outcomes in adulthood. However, evidence was much stronger for mental health conditions than for physical health conditions, for which less evidence was available and mixed findings emerged. Compared with mental health conditions, we identified few studies investigating the long-term outcomes of physical health conditions. Age and follow-up times varied considerably across our studies, which potentially resulted in some heterogeneity in effect sizes. The majority of included studies were conducted in the United States, raising questions about the generalizability of the results internationally.CONCLUSIONS: Health in adolescence contributes to adult attainment and life chances. The results suggest that investment in health may improve life chances and that policy interventions may improve outcomes for those with adolescent chronic conditions.

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“…An established protocol was used to aid interpretation of the results of the review for the NOS 18 consistent with previous systematic reviews 19 and for the PEDro Scale 20 ( Table 2).…”

Section: Data Extraction and Synthesismentioning

confidence: 99%

The acute respiratory management of cervical spinal cord injury in the first 6 weeks after injury: a systematic review

et al. 2010

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Study design: Systematic review. Objectives: Identify, evaluate, and synthesize evidence regarding the effectiveness of various treatment strategies for the respiratory management of acute tetraplegia. Setting: Melbourne, Australia. Methods: A search of multiple electronic databases (Medline, Cinahl, EMBASE, Cochrane Library, Web of Science, http://www.guideline.gov and http://www.icord.org/scire) was undertaken accompanied by the reference lists of all relevant articles identified. Methodological quality was assessed using the Newcastle-Ottawa Scale and the PEDro Scale. Descriptive analysis was performed. Results: Twenty-one studies including 1263 patients were identified. The majority of the studies were case series (n ¼ 13). A variety of interventions were used for the management of respiratory complications. Mortality (ARR ¼ 0.4, 95% confidence interval (CI) 0.18, 0.61), the incidence of respiratory complications (ARR ¼ 0.36, 95% CI (0.08, 0.58)), and requirement for a tracheostomy (ARR ¼ 0.18, 95% CI (À0.05, 0.4)) were significantly reduced by using a respiratory protocol. A clinical pathway reduced duration of mechanical ventilation by 6 days 95% CI (À0.56, 12.56), intensive care unit length of stay by 6.8 days 95% CI (0.17-13.77) and costs. Intubation, mechanical ventilation, and tracheostomy are the mainstay of respiratory management for complete injuries above the level of C5. Conclusion: This review showed a clinical pathway with a structured respiratory protocol that includes a combination of treatment techniques provided regularly is effective in reducing respiratory complications and cost. The overall study quality was moderate and further studies using specific interventions that target respiratory complications are associated with specific regions of the cervical spine using more methodologically rigorous designs are required.

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Females with patellofemoral pain syndrome have weak hip muscles: a systematic review

Abstract: Females with patellofemoral pain syndrome demonstrate a decrease in abduction, external rotation and extension strength of the affected side compared with healthy controls.

Cited by 234 publications

References 32 publications

Relationship of the Frontal Knee Alignment Measured by the HKA-Angle with the Relative Activation of the Quadriceps Muscles

Relationship of the Frontal Knee Alignment Measured by the HKA-Angle with the Relative Activation of the Quadriceps Muscles

Adolescent Health and Adult Education and Employment: A Systematic Review

The acute respiratory management of cervical spinal cord injury in the first 6 weeks after injury: a systematic review

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