Muscle Activation of Vastus Medialis Oblique and Vastus Lateralis in Sling-Based Exercises in Patients with Patellofemoral Pain Syndrome: A Cross-Over Study

Chang, Wen Dien; Huang, Wei; Peng, Lai

doi:10.1155/2015/740315

Cited by 17 publications

(15 citation statements)

References 29 publications

(49 reference statements)

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“…An over-active TFL can put lateral force on the patella through connections to the iliotibial band [13,14]. This movement pattern has been associated with PFPS and ITBS syndrome [9,[14][15][16][17]. Also, the current investigation is based on the premise that excessive activation of the TFL may be counterproductive in the treatment of subjects with GVD, during therapeutic exercises in which excessive hip medial rotation may be a contributing factor [8].…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, it would be necessary to promote the GMed activity as minimizing TFL activation [8]. The strength imbalance between the vastus medialis (VM) and vastus lateralis (VL) [14] that occurs due to knee malalignment in GVD shifts the patella laterally, and has led some authors to suggest that this strength difference is associated with PFPS syndrome [15,16].…”

Section: Gvdmentioning

confidence: 99%

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Squat Muscle Activation Patterns with Hip Rotations in Subjects with Genu Varum Deformity

et al. 2020

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The purpose of this study was to compare muscle activation during the squat with different hip rotations (neutral, 15, 30, and 45° of internal and external hip rotation) in subjects with and without Genu Varum deformity deformity. Surface electromyography were recorded from 32 men with (n=16) and without (n=16) Genu Varum deformity. In the Genu Varum deformity group, the squats with 30, 45 and 15° of internal rotations of the hip showed significantly greater gluteus medius activation as compared to other positions. Moreover, the tensor fascia lata activity increased with greater external rotation of the hip, and significantly more than hip internal rotations (p<0.05). For vastus medialis and vastus lateralis, both hip internal and external rotation showed a significantly greater activation compared to the neutral hip positions (p<0.05). There were significant differences in the gluteus medius:tensor fascia lata activity ratio (p=0.001) and the vastus medialis: vastus lateralis activity ratio (p=0.001) between the different hip positions in the Genu Varum deformity and healthy groups. These results demonstrate that muscle activation patterns varied significantly with the position of different hip rotation in both groups. Those with Genu Varum deformity may use this information to aid in an injury prevention strategy by choosing squat positioning that favorably alters muscle activation patterns.

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Section: Discussionmentioning

confidence: 99%

Section: Gvdmentioning

confidence: 99%

Squat Muscle Activation Patterns with Hip Rotations in Subjects with Genu Varum Deformity

et al. 2020

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“…By contrast 41 stated that application of sling open chain knee extension (SOCKE) exercise in conjunction with sling exercise therapy (SET) intensified VMO activity compared to VL activity. Most of the studies that were reviewed compared the responses of the VMO and VL muscles of participants with PFPS 42 to open and closed kinetic chain exercises, but none of them compared experimental and placebo control groups.…”

Section: Analysis Of Reviewed Studiesmentioning

confidence: 99%

A Systematic Review of the Effect of Open and Closed Kinetic Chain Exercises on the Vastus Medialis Oblique and Vastus Lateralis Muscles of Patients with Patellofemoral Pain Syndrome

Almangoush¹

2017

MOJYPT

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ObjectivesThe purpose of the present study is to review the existing literature regarding the response of the Vastus medialis oblique (VMO) and Vastus lateralis (VL) muscles of patients with Patellofemoral pain syndrome (PFPS) to open and closed kinetic chain exercises. Search methodsA search was conducted for randomised and non-randomised controlled trials published by July 2016 and involving comparative analysis of exercise treatment with control groups or various exercise treatment types. The following resources were searched: the Cochrane Bone, Joint and Muscle Trauma Group and Cochrane Rehabilitation and Related Therapies Field specialised registers, the Cochrane Controlled Trials Register, The Physiotherapy Evidence Database (PEDro), MEDLINE, EMBASE, and CINAHL. Data collection and analysisTrials were excluded if they were not concerned with exercise therapy in individuals with PFPS. Thus, only nine out of 91 trials found were included and they all employed statistical techniques to assess the response of VMO and VL muscles to open and closed kinetic chain exercises. Main resultsThe trials under review are too few in number and are inconsistent with regard to rehabilitation strategies and outcome assessment. They underline the necessity for reviewing RCT trials on a wider scale as the evidence they supply in support of use of open and closed kinetic chain exercises is insufficient. Trials have to be comparable in terms of participant traits, intervention and outcome assessment to improve the validity of the conclusions drawn. It was not possible to definitely say whether one intervention was better than another, because different interventions were implemented in the reviewed trials. Furthermore, future research should also include placebo-controlled trials to ascertain the efficiency of various interventions. Keywords

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“…[ 3 ] The patellar cartilage was worn continuously through abnormal patellar tracking, producing patellar pain, instability, and dysfunction. [ 4 ] Rehabilitation treatment for PFPS had focused on VMO muscle strengthening to correct patellar malalignment. [ 5 ] A previous study reported that specific exercise activities focusing on VMO muscle training were effective in pain reduction and functional ability improvement in patients with PFPS.…”

Section: Introductionmentioning

confidence: 99%

Electromyographic analysis of hip and knee muscles during specific exercise movements in females with patellofemoral pain syndrome

Chen

Chang

et al. 2018

Medicine

Self Cite

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Hip muscle strengthening and knee extensor strengthening are common training exercises for patellofemoral pain syndrome (PFPS). PFPS engendered by insufficient hip abductor and external rotator muscle strength has been of interest, but these exercise movements may increase the lateral vector force of the patella warrants clarification. So, the purpose of this study was to assess muscular activations of vastus lateralis (VL), vastus medialis oblique (VMO), and gluteus medius muscles in electromyographic analysis during hip abduction and external rotator movements and open and closed kinetic chain knee extension movements.The gluteus medius, VMO, and VL muscles, in addition to the ratio of the VL and VMO muscles, were assessed through surface electromyography in 4 movements. Each muscle's amplitude expressed as a percent of maximum voluntary contraction (MVC). The differences on MVC at the terminal joint angle and during the movements were compared.Thirty female patients with PFPS were recruited. During hip abduction and external rotation movements, the MVC of the gluteus medius muscle increased, and those of the VMO and VL muscles increased in the open and closed kinetic chain knee extension movements. The MVCs of VL in the hip abduction and external rotation movements were significantly higher than those of the VMO muscle (P < .05). The ratios of the VL and VMO muscles in the open and closed kinetic chain knee extension movements approached 1, and they were significantly higher than those in the hip abduction and external rotation movements (P < .05). The highest MVC of the VMO muscle was observed at the terminal joint angle in the closed kinetic chain knee extension movement.Selective gluteus medius muscle activation was induced during the hip abduction and external rotation movements, accompanied by an increase in VL muscle activation. In open and closed kinetic chain knee movements, the ratios of the VL and VMO muscles approached 1. More selective VMO muscle activation was induced during the closed kinetic chain knee movements.

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Muscle Activation of Vastus Medialis Oblique and Vastus Lateralis in Sling-Based Exercises in Patients with Patellofemoral Pain Syndrome: A Cross-Over Study

Cited by 17 publications

References 29 publications

Squat Muscle Activation Patterns with Hip Rotations in Subjects with Genu Varum Deformity

Squat Muscle Activation Patterns with Hip Rotations in Subjects with Genu Varum Deformity

A Systematic Review of the Effect of Open and Closed Kinetic Chain Exercises on the Vastus Medialis Oblique and Vastus Lateralis Muscles of Patients with Patellofemoral Pain Syndrome

Electromyographic analysis of hip and knee muscles during specific exercise movements in females with patellofemoral pain syndrome

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