Functional and EMG responses to a physical therapy treatment in patellofemoral syndrome patients

Sacco, Isabel de Camargo Neves; Konno, Gil Kiyoshi; Rojas, Guilherme Benetti; Arnone, Antonio Carlos; Pássaro, Anice de Campos; Marques, Amélia Pasqual; Cabral, Cristina Maria Nunes

doi:10.1016/j.jelekin.2004.06.010

Cited by 23 publications

(8 citation statements)

References 20 publications

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“…Single exercises, such as a leg press, 8 had significant improvement in pain and increased function (Lysholm scale scores), as did exercise prescriptions that included flexibility, strength, and muscle balance (quadriceps, adductor, and gluteals). 1,3,11,13,17,19,21 In studies comparing the effects of different exercise programs, no differences were found between the 2 exercise groups. Witrouv et al 21 compared open (n = 30) and closed kinetic chain (n = 30) exercise protocols and found that both statistically improved Kujala function scores and decreased perceived pain, although no statistical differences were found between the 2 groups.…”

Section: Discussionmentioning

confidence: 99%

“…Many of the participants from these studies were not “true controls.” Some control groups received placebo treatments, nonsteroidal anti-inflammatory drugs, or less rigorous forms of exercise for comparison with those in experimental intervention groups (Table 2). The studies using “true controls” 6,11,17,18 had average effect sizes in Kujala and VAS outcomes of 0.23 and −0.29, whereas the average Kujala and VAS scores for patients in other control groups 1,3,5,13,19,21 were 0.8 and −1.18. This suggests that patients with PFPS will benefit from doing some exercise rather than nothing.…”

Section: Discussionmentioning

confidence: 99%

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The Effects of Exercise on Decreasing Pain and Increasing Function in Patients With Patellofemoral Pain Syndrome

2012

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Context:Exercise or rest is commonly prescribed as treatment for patellofemoral pain syndrome.Study Selection:This study is based on Level I or II research studies examining the effects of exercise and rest on decreasing pain (visual analog scale) and increasing function (Kujala Scoring Questionnaire) using human participants. Articles were limited to those printed in English from PubMed (1966–September 2010), CINAHL (1982–September 2010), and SPORTDiscus (1972–September 2010).Data Extraction:Weighted aggregate effect sizes and 95% confidence intervals were calculated from means and standard deviations extracted from 10 studies, resulting in an analysis of 433 patients.Results:A very large effect for exercise was found for patient-reported functional outcomes (d = 2.19) and perceived pain (d = −1.24) in treated patients, which were larger than functional outcomes (d = 0.77) and pain (d = −0.14) in controls. Short-term follow-up of 191 patients from 4 data sets in 2 studies revealed a large effect for functional outcomes (d = 1.04) and pain (d = −0.82) in patients who performed an exercise intervention. One study reported moderate effect sizes for functional outcomes (d = 0.59) and pain (d = −0.35) at 3 months postintervention.Conclusions:Exercise is the more effective treatment for immediate decrease in pain and increase in function although these differences appear to be less distinguishable over time.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The Effects of Exercise on Decreasing Pain and Increasing Function in Patients With Patellofemoral Pain Syndrome

2012

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“…The quadriceps muscles are the main extensors of the knee and are responsible for bearing body weight and facilitating balancing abilities such as body alignment, stabilization, and ambulation 23 ) . When the extension function of the knee is weakened, functional impairments such as malalignment are produced, potentially causing PFPS 2 , 24 ) . Weakened extensor muscle strength due to weakened extension function can, in turn, produce pain or other ailments 18 ) .…”

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of ambulation patterns and isokinetic muscle strength for the application of rehabilitation exercise in patients with patellofemoral pain syndrome

Kim

2016

J Phys Ther Sci

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[Purpose] The aim of this study was to evaluate the differences in the ambulation patterns and knee joint performance between people with and without patellofemoral pain. The present study also aimed to utilize these results as a basis for the development of pain-alleviating and performance-improving treatment programs. [Subjects and Methods] Subjects consisted of 32 adult females diagnosed with patellofemoral pain syndrome and 25 adult females without patellofemoral pain (controls). Contact ratio patterns during ambulation and isokinetic muscle strength around the knee joint were measured in both groups and then compared. [Results] Ambulation patterns, specifically the contact ratios of the left forefoot and right forefoot, differed significantly between patients with patellofemoral pain syndrome and controls. An isokinetic muscle strength test demonstrated that left and right knee extensor and flexor torques also significantly differed between these two groups. [Conclusion] Basic analysis based on ambulation patterns and muscle strength can be used to indicate functional recovery from patellofemoral pain syndrome and provide insight into improving the rehabilitation of patients.

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“…The intensity of knee pain in the PFPS group was 1.7±2.3 cm, and the control subjects presented a knee pain intensity equal to 0.0 cm. To better characterize knee function in PFPS and CG subjects, each individual was evaluated with the Lysholm Functional Knee Scale; the average (median) Lysholm score was 70 for the PFPS group and 98 for the CG 24,25. …”

Section: Methodsmentioning

confidence: 99%

Influence of patellofemoral pain syndrome on plantar pressure in the foot rollover process during gait

Aliberti

Costa

Pássaro

et al. 2011

Clinics

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BACKGROUND:Patellofemoral Pain Syndrome is one of the most common knee disorders among physically active young women. Despite its high incidence, the multifactorial etiology of this disorder is not fully understood.OBJECTIVES:To investigate the influence of Patellofemoral Pain Syndrome on plantar pressure distribution during the foot rollover process (i.e., the initial heel contact, midstance and propulsion phases) of the gait.MATERIALS AND METHODS:Fifty-seven young adults, including 22 subjects with Patellofemoral Pain Syndrome (30 ± 7 years, 165 ± 9 cm, 63 ± 12 kg) and 35 control subjects (29 ± 7 years, 164 ± 8 cm, 60 ± 11 kg), volunteered for the study. The contact area and peak pressure were evaluated using the Pedar-X system (Novel, Germany) synchronized with ankle sagittal kinematics.RESULTS:Subjects with Patellofemoral Pain Syndrome showed a larger contact area over the medial (p = 0.004) and central (p = 0.002) rearfoot at the initial contact phase and a lower peak pressure over the medial forefoot (p = 0.033) during propulsion when compared with control subjects.CONCLUSIONS:Patellofemoral Pain Syndrome is related to a foot rollover pattern that is medially directed at the rearfoot during initial heel contact and laterally directed at the forefoot during propulsion. These detected alterations in the foot rollover process during gait may be used to develop clinical interventions using insoles, taping and therapeutic exercise to rehabilitate this dysfunction.

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Functional and EMG responses to a physical therapy treatment in patellofemoral syndrome patients

Cited by 23 publications

References 20 publications

The Effects of Exercise on Decreasing Pain and Increasing Function in Patients With Patellofemoral Pain Syndrome

The Effects of Exercise on Decreasing Pain and Increasing Function in Patients With Patellofemoral Pain Syndrome

Comparative evaluation of ambulation patterns and isokinetic muscle strength for the application of rehabilitation exercise in patients with patellofemoral pain syndrome

Influence of patellofemoral pain syndrome on plantar pressure in the foot rollover process during gait

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