Prevalence of Myofascial Trigger Points in the Hip in Patellofemoral Pain

Roach, Sean; Sorenson, Eric; Headley, Barbara J.; Juan, Jun G. San

doi:10.1016/j.apmr.2012.10.022

Cited by 41 publications

(24 citation statements)

References 22 publications

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“…Some populations are representative of individuals active in sports,24 35–37 39 40 45 52 53 55 57 while other are representative of sedentary individuals 54. Some studies did not account for where the population being studied was recruited from or how controls were selected 38 41 42 47 49–51 56. This limits external validity and makes it difficult to extrapolate to whom these results are valid, and also decreases the internal validity as the populations may be representative of different backgrounds.…”

Section: Discussionmentioning

confidence: 99%

Is hip strength a risk factor for patellofemoral pain? A systematic review and meta-analysis

et al. 2014

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This review highlights a possible discrepancy between prospective and cross-sectional research. Cross-sectional studies indicate that adult men and women with PFP appear to have lower hip strength compared to pain-free individuals. Contrary to this, a limited number of prospective studies indicate that there may be no association between isometric hip strength and risk of developing PFP. Therefore, reduced hip strength may be a result of PFP rather than the cause.

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Section: Discussionmentioning

confidence: 99%

Is hip strength a risk factor for patellofemoral pain? A systematic review and meta-analysis

et al. 2014

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“…The iliopsoas and proximal adductor tendons can refer pain into the anteromedial hip and thigh. 8,13,14 Although considerable investigation is required to establish the etiology and prevalence of myofascial hip pain, failure to diagnose and properly treat this entity may result in chronicity of the patient's complaint. For example, in patients suffering from tension headaches, longstanding muscle pain has been proposed as a key etiologic agent in the transition from an acute state to a chronic state.…”

Section: Myofascial Painmentioning

confidence: 99%

Posterior, Lateral, and Anterior Hip Pain Due to Musculoskeletal Origin: A Narrative Literature Review of History, Physical Examination, and Diagnostic Imaging

Battaglia

D’Angelo

Kettner

2016

Journal of Chiropractic Medicine

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Objective: The purpose of this study was to present a narrative review of the literature of musculoskeletal causes of adult hip pain, with special attention to history, physical examination, and diagnostic imaging. Methods: A narrative review of the English medical literature was performed by using the search terms "hip pain" AND "anterior," "lateral," and "posterior." Additionally, specific entities of hip pain or pain referral sources to the hip were searched for. We used the PubMed search engine through January 15, 2016. Results: Musculoskeletal sources of adult hip pain can be divided into posterior, lateral, and anterior categories. For posterior hip pain, select considerations include lumbar spine and femoroacetabular joint referral, sacroiliac joint pathology, piriformis syndrome, and proximal hamstring tendinopathy. Gluteal tendinopathy and iliotibial band thickening are the most common causes of lateral hip pain. Anterior hip pain is further divided into causes that are intra-articular (ie, labral tear, osteoarthritis, osteonecrosis) and extra-articular (ie, snapping hip and inguinal disruption [athletic pubalgia]). Entrapment neuropathies and myofascial pain should also be considered in each compartment. A limited number of historical features and physical examination tests for evaluation of adult hip pain are supported by the literature and are discussed in this article. Depending on the clinical differential, the gamut of diagnostic imaging modalities recommended for accurate diagnosis include plain film radiography, computed tomography, magnetic resonance imaging, skeletal scintigraphy, and ultrasonography. Conclusions: The evaluation of adult hip pain is challenging. Clinicians should consider posterior, lateral, and anterior sources of pain while keeping in mind that these may overlap. (J Chiropr Med 2016;15:281-293)

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“…The effect of MTrP on muscle function has not been widely studied. There is evidence that the presence of MTrP can cause dysfunction within the muscle it resides by altering the motor pattern, i.e., recruitment and timing of muscle activation, possibly leading to a decrease in strength [16][17][18][19]. It has also been shown that the presence of latent MTrP can cause an increase in intramuscular EMG activity and alter the synergistic muscle firing pattern during movement [20].…”

Section: Discussionmentioning

confidence: 99%

Clinical Measures Predicting Knee Extensor Muscle Activation During a Maximal Voluntary Isometric Contraction

Morelli¹,

Garcia²,

Brown³

et al. 2015

JESO

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Open Access Research Articlefiber pennation angle) but also by its neurophysiological properties (e.g., motor unit recruitment, rate coding, motor unit synchronization). Several studies have shown that the deficits in knee extensor strength found after knee injuries are attributable more to decreased knee extensor muscle activation than to muscle atrophy due to disuse [1][2][3]. The inability to maximally activate the knee extensors in the absence of frank tissue damage can alter athletic performance, which often relies on optimal contraction of this lower-extremity muscle group [1].The interpolated twitch and central activation ratio methods are considered to reliably assess the percent of a muscle group's mass that is activated during a voluntary contraction [4,5]. Interestingly, the knee extensors have, on average, been observed to have a relatively low activation during a maximal voluntary isometric contraction (MVIC) compared to other muscles or muscle groups, including the biceps, brachialis, adductor pollicis, tibialis anterior, and ankle plantarflexors [5]. Activation of the knee extensor during a MVIC in otherwise healthy individuals has been reported on average to be in the 85-95% range, while the MVIC activation for other muscle groups exceeds 95%. We have reported a similar mean value for the knee extensors (i.e., 86%) in apparently healthy young adults but individual values in the study ranged greatly from 64 to 99% [6]. The lower knee extensor activation levels observed in healthy individuals may not affect typical activities of daily living, but they could limit athletic performance and/or affect injury prevention.Knowing knee extensor activation during a MVIC could be useful clinical data for optimizing athletic performance, determining an athlete's ability to return to sport, and design of strengthening and rehabilitation programs. While it is possible to assess activation by performing the interpolated twitch and central activation ratio methods in the research laboratory, the techniques are not practical to perform in a clinical setting or on the training field because they require expertise and training not possessed by most clinicians, and utilize equipment not commonly found in the clinic. Also, the techniques are often AbstractStrength of a muscle group is determined by its physiological cross-sectional area and one's ability to activate the muscle group. Injury and disuse are associated with a decreased ability to maximally activate a muscle group. Clinical orthopedic measures such as manual muscle testing may provide an indication of muscle strength but no direct insight into the extent a muscle group is being activated. The objective of our studies was to determine the standard clinical orthopedic measures and/or medical history that can best predict muscle activation during a maximal voluntary isometric contraction (MVIC) of the knee extensors. Forty young, healthy subjects completed a pilot study (Study A), which included a medical history assessment and a comprehensive battery of low...

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Prevalence of Myofascial Trigger Points in the Hip in Patellofemoral Pain

Cited by 41 publications

References 22 publications

Is hip strength a risk factor for patellofemoral pain? A systematic review and meta-analysis

Is hip strength a risk factor for patellofemoral pain? A systematic review and meta-analysis

Posterior, Lateral, and Anterior Hip Pain Due to Musculoskeletal Origin: A Narrative Literature Review of History, Physical Examination, and Diagnostic Imaging

Clinical Measures Predicting Knee Extensor Muscle Activation During a Maximal Voluntary Isometric Contraction

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