The Effects of Quadriceps Strengthening on Pain, Function, and Patellofemoral Joint Contact Area in Persons with Patellofemoral Pain

Chiu, Joanne; Wong, Yiu Ming; Yung, Patrick Shu‐Hang; Ng, Gabriel Y.F.

doi:10.1097/phm.0b013e318228c505

Cited by 79 publications

(52 citation statements)

References 31 publications

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“…Kujala skalası; hastalığa spesifik, yaygın olarak kullanılan, geçerli, güvenilir ve duyarlı bir değerlendirme ölçeğidir. Ön diz ağrısını değerlendirmek üzere tanımlanan sonuç ölçütlerinin geçerliliği ve güvenilirliği ile yapılan çalışmalarda, Kujala ön diz ağrısı skorunda meydana gelen %10 değişikliğin iyileşmeyi temsil ettiği gösterilmiştir (1,20,21). Çalışmamızda iyileşmeyi gösteren %10 ve üzeri değişiklik açısından İEG ve EEG arasında fark olmamakla birlikte, her iki grupta da fonksiyonel durumda egzersiz öncesine göre anlamlı düzelmeler saptandı.…”

Section: Discussionunclassified

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Patellofemoral Pain Syndrome: Results of a Home Exercise Program Versus Isokinetic Exercise Program on Functional Capacity

Karakuş¹,

Erdoğdu²,

Delialioğlu³

et al. 2014

Turk J Phys Med Rehab

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Objective: To investigate the difference between a home exercise program versus an isokinetic concentric quadriceps-hamstring exercise program in terms of functional capacity for the treatment of patients with patellofemoral pain syndrome. Material and Methods: This randomized study included 32 patients (39 painful knees) with patellofemoral pain. The patients were allocated in two groups as home exercise (HEG, n=14) and isokinetic exercise program groups (IEP, n=18). They were given an exercise program of 3 weeks. The functional status was examined with the Kujala scale, and knee muscle power was examined with the concentric isokinetic muscle test at 60 ve 180°/sc torque velocities. Results: A progression in Kujala score was observed within both groups, HEG and IEP, before and after the treatment. There was no difference with respect to improvement level between groups. In the assessment within the group before and after the treatment, including isokinetic muscle parameters, 60°/s angular velocity extension peak torque, flexion peak torque, agonist/antagonist ratio, 180°/s angular velocity flexion peak torque and agonist/antagonist ratio, flexion total work of İEG, 180°/s angular velocity extension total work, and flexion total work parameters of IEP were observed to be statistically significant. In the assessment between the groups, 60°/s angular velocity agonist/antagonist ratio and 180°/s angular velocity flexion total work were found to be significantly in favor of the IEP group. Conclusion: The isokinetic exercise program, despite being better in parameters of strengthening and endurance, was found to be similar with the home exercise program in clinical outcome in patients with patellofemoral pain. Key Words: Patellofemoral pain, exercise, isokinetic Özet Amaç: Patellofemoral ağrı tedavisinde, evde egzersiz programı ile izokinetik konsantrik kuadriseps-hamstring güçlendirme egzersizleri arasında, fonksiyonel düzelme açısından fark olup olmadığını araştırmaktı. Gereç ve Yöntemler: Patellofemoral ağrılı, 32 hasta (39 ağrılı diz) randomize olarak çalışmaya alındı. Evde egzersiz grubu (EEG, n=14) ve izokinetik egzersiz grubu (İEG, n=18) olarak iki gruba ayrılan hastalara, 3 hafta süre ile egzersiz programı uygulandı. Fonksiyonel düzey değerlendirme-sinde Kujala skalası, diz kas kuvveti değerlendirmesinde 60 ve 180°/s açı-sal hızlarda konsantrik izokinetik kas testi kullanıldı. Bulgular: Kujala skorunda, grup içi tedavi öncesi ve sonrası skorlar arasın-da her iki grupta da anlamlı iyileşme gözlendi. İyileşme düzeyi açısından gruplar arasında fark yoktu. İzokinetik kas parametreleri ile tedavi öncesi ve sonrası arasında yapılan grup içi değerlendirmede İEG'de; 60°/s açısal hızda ekstansiyon pik tork, fleksiyon pik tork, agonist/antagonist oranı, 180°/s açısal hızda fleksiyon pik tork, agonist/antagonist oranı, fleksiyon total work, EEG'de; 180°/s açısal hızda ekstansiyon total work, fleksiyon total work parametrelerinde istatistiksel olarak anlamlı düzelme gözlendi. Gruplar arası yapılan değerlendirmede...

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Section: Discussionunclassified

“…Randomize kontrollü olarak yapılan çeşitli çalışmalar egzersiz bazlı tedavilerin ağrı ve fonksiyon üzerinde olumlu etkisini göstermişlerdir (14,15,20,31). Ancak bunlar arasında ev egzersiz programı ile izokinetik egzersizi karşılaştıran bir çalışma bulunmuyordu.…”

Section: S65unclassified

Patellofemoral Pain Syndrome: Results of a Home Exercise Program Versus Isokinetic Exercise Program on Functional Capacity

Karakuş¹,

Erdoğdu²,

Delialioğlu³

et al. 2014

Turk J Phys Med Rehab

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“…Isometric and concentric quadriceps muscle strengths were evaluated by Cybex Norm®. The authors found increased isometric quadriceps strength (pre/post training difference: 22.44±5.61 N) and isokinetic quadriceps strength (pre/post training difference: 9.33 ± 4.61 N) after their exercise program (47).…”

Section: Weight-bearing Versus Non-weight-bearing Exercisesmentioning

confidence: 96%

“…In conclusion, the authors recommended combining treatments as the initial approach to treating patellofemoral pain but further individualized more functional, global treatment is essential (46). Chiu et al investigated effect of weight training on hip and knee muscle strength in patients with patellofemoral pain syndrome (47). Weight bearing quadriceps extension exercises were performed using a weight machine and a leg-press machine for a leg-press exercise.…”

Section: Weight-bearing Versus Non-weight-bearing Exercisesmentioning

confidence: 99%

How Can We Strengthen the Quadriceps Femoris in Patients with Patellofemoral Pain Syndrome?

2011

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SummaryPurpose: the aim of this article was to review the clinical approach of quadriceps strengthening programmes. Methods: a literature search was carried out from 1980 up to September 2011. Eligible studies were those that: (1) evaluated the patients with patellofemoral pain syndrome (not healthy or asymptomatic subjects) (2) examined the effect of kinetic chain exercises (3) examined the effect of weight-bearing exercises (4) compared the effect of the combined exercises programme in the treatment of patients with patellofemoral pain syndrome. Results and conclusion: patients with patellofemoral pain syndrome may tolerate a closed kinetic chain exercises programme better than open kinetic chain. Weight-bearing and non-weight-bearing quadriceps exercises can significantly improve subjective and clinical outcomes in patients with patellofemoral pain syndrome. Combining treatments as an initial approach to treating patellofemoral pain but developing individualized more functional, global treatments are essential.

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“…8 Three recently published reports pertaining to PFPS treatment illustrate challenges to the development of recommendations for clinical application of research evidence. [9][10][11] Ferber et al 9 investigated the therapeutic benefit of hip-strengthening exercises in patients with PFPS who reported running at least 3 times per week for 30 minutes per session. Dolak et al 10 assessed hip and quadriceps strengthening in female PFPS patients, but physical activity level was not considered.…”

Section: Perspective: Patellofemoral Pain Syndromementioning

confidence: 99%

Cohort Study Design: An Underutilized Approach for Advancement of Evidence-Based and Patient-Centered Practice in Athletic Training

Wilkerson

Denegar

2014

Journal of Athletic Training

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Objective: Providing patient-centered care requires consideration of numerous factors when making decisions that will influence a patient's health status.Background: Clinical decisions should be informed by relevant research evidence, but the literature often lacks pertinent information for problems encountered in routine clinical practice. Although a randomized clinical trial provides the best research design to ensure the internal validity of study findings, ethical considerations and the competitive culture of sport often preclude random assignment of patients or participants to a control condition.Clinical Advantages: A cohort study design and Bayesian approach to data analysis can provide valuable evidence to support clinical decisions. Dichotomous classification of both an outcome and 1 or more predictive factors permits quantification of the likelihood of occurrence of a specified outcome.Conclusions: Multifactorial prediction models can reduce uncertainty in clinical decision making and facilitate the individualization of treatment, thereby supporting delivery of clinical services that are both evidence based and patient centered.

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The Effects of Quadriceps Strengthening on Pain, Function, and Patellofemoral Joint Contact Area in Persons with Patellofemoral Pain

Abstract: Weight-training exercise increased knee muscle strength and the patellofemoral joint contact area, which could reduce mechanical stress in the joint, improving pain and function in subjects with PFPS.

Cited by 79 publications

References 31 publications

Patellofemoral Pain Syndrome: Results of a Home Exercise Program Versus Isokinetic Exercise Program on Functional Capacity

Patellofemoral Pain Syndrome: Results of a Home Exercise Program Versus Isokinetic Exercise Program on Functional Capacity

How Can We Strengthen the Quadriceps Femoris in Patients with Patellofemoral Pain Syndrome?

Cohort Study Design: An Underutilized Approach for Advancement of Evidence-Based and Patient-Centered Practice in Athletic Training

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