scholarly journals The Effects of 12-Weeks of Sensorimotor Exercise on Pain, Strength, Pelvic Drop, and Dynamic Knee Valgus in Males With Patellofemoral Pain Syndrome

2020 ◽  
Vol 10 (3) ◽  
pp. 159-168
Author(s):  
Ali Yalfani ◽  
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Mohamadreza Ahmadi ◽  
Farzaneh Gandomi ◽  
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...  

Purpose: Patellofemoral Pain Syndrome (PFPS) is among the most prevalent complaints observed in healthcare clinics. This group of patients encounters Pelvic Drop (PD) and Dynamic Knee Valgus (DNV); its’ causes have been reported as pain and decreased muscle strength. The current study aimed to explore the effects of a 12-week Sensorimotor Exercise (SME) on pain, strength, PD, and DNV in males with PFPS. Methods: This randomized double-blind clinical trial involved 32 patients with PFPS. The study samples were randomly divided into the experimental (n=16) and control (n=16) groups. To assess pain, the Visual Analogue Scale (VAS) was used. Moreover, quadriceps muscle strength was measured by the hip abductor hand dynamometer. To analyze PD and DNV, camera and Kinova software were used during stairs descent. The experimental group performed 12 weeks of SME for 3 one-hour weekly sessions. However, the control group received no therapeutic intervention during this time. The obtained data were analyzed in SPSS using Analysis of Covariance (ANCOVA).  Results: The data analysis results suggested that pain significantly reduced in the experimental group, compared to the control group, after twelve weeks of SME (P<0.001). Besides, quadriceps muscle strength (P<0.002) and hip abductor muscle strength (P<0.001) improved, and PD angle (P<0.002) and DNV (P<0.003) were reduced. Conclusion: SME reduced pain and facilitated the frequency and time of muscle activation. It also increased the strength of the gluteus medius muscle as the main stabilizer of the pelvis chain and led to a reduction in PD and DNV. Thus, SME could be used as a comprehensive protocol treatment to improve various disorders in patients with PFPS.

2020 ◽  
Vol 8 (3) ◽  
Author(s):  
Sirous Azizi ◽  
Zahra Rezasoltani ◽  
Elaheh Shirzadi ◽  
Afsaneh Dadarkhah ◽  
Morvarid Elahi

Background: Patellofemoral Pain Syndrome (PFPS) is one of the most common diagnoses made for patients referred to physical/rehabilitation and orthopedic clinics. The most common symptom of PFPS is a diffuse pain in front of either one or both knees exacerbated by intense activity, kneeling, squatting, climbing, and weakness of quadriceps muscle. Lumbosacral manipulation and knee exercises are the most commonly used methods in physical medicine with no major side effects. Objectives: The current study aimed to compare the efficacy of the lumbosacral manipulation technique with knee exercises versus sole knee exercises in patients with PFPS. Study Design was Randomized Controlled Clinical Trial. Methods: In this randomized controlled clinical trial, 30 patients (18 females and 12 males) diagnosed with PFPS were divided into two groups of study and control, each with 15 subjects. Those in the intervention group received a single bilateral lumbosacral manipulation after ruling out any contraindication for lumbosacral manipulation by lumbosacral radiography. Quality of life, gait, quadriceps muscle strength, keen pain improvement, and range of motion were evaluated at the beginning and four weeks following the knee strengthening exercises for all participants. Results: The mean age of participants was 34 ± 5 years. The difference between the groups concerning the swing phase of walking and quadriceps muscle strength was in both groups was investigated following providing interventions. Conclusions: The manipulation technique had a greater effect on improving the function of patients with PFPS compared to therapeutic knee exercises.


2011 ◽  
Vol 46 (2) ◽  
pp. 142-149 ◽  
Author(s):  
Reed Ferber ◽  
Karen D. Kendall ◽  
Lindsay Farr

Abstract Context: Very few authors have investigated the relationship between hip-abductor muscle strength and frontal-plane knee mechanics during running. Objective: To investigate this relationship using a 3-week hip-abductor muscle-strengthening program to identify changes in strength, pain, and biomechanics in runners with patellofemoral pain syndrome (PFPS). Design: Cohort study. Setting: University-based clinical research laboratory. Patients or Other Participants: Fifteen individuals (5 men, 10 women) with PFPS and 10 individuals without PFPS (4 men, 6 women) participated. Intervention(s): The patients with PFPS completed a 3-week hip-abductor strengthening protocol; control participants did not. Main Outcome Measure(s): The dependent variables of interest were maximal isometric hip-abductor muscle strength, 2-dimensional peak knee genu valgum angle, and stride-to-stride knee-joint variability. All measures were recorded at baseline and 3 weeks later. Between-groups differences were compared using repeated-measures analyses of variance. Results: At baseline, the PFPS group exhibited reduced strength, no difference in peak genu valgum angle, and increased stride-to-stride knee-joint variability compared with the control group. After the 3-week protocol, the PFPS group demonstrated increased strength, less pain, no change in peak genu valgum angle, and reduced stride-to-stride knee-joint variability compared with baseline. Conclusions: A 3-week hip-abductor muscle-strengthening protocol was effective in increasing muscle strength and decreasing pain and stride-to-stride knee-joint variability in individuals with PFPS. However, concomitant changes in peak knee genu valgum angle were not observed.


2016 ◽  
Vol 06 (01) ◽  
pp. 068-073
Author(s):  
Kavitha Shetty ◽  
Lawrence Mathias ◽  
Mahesh V. Hegde ◽  
Sukumar Shanmugam

Abstract Purpose: To investigate the influence of additional eccentric strengthening to the hip abductor and lateral rotator musculature on pain and function in sedentary people with Patellofemoral pain syndrome (PFPS). Methods: 30 sedentary patients between 18 and 40 years of age, with a diagnosis of PFPS, all the subjects received treatment for a period of 4weeks and the subjects were randomly assigned to Control group (CG) and Experimental group (EG). The patients in the Control group (n = 15) performed a conventional knee-stretching and strengthening program, whereas, patients in the Experimental group (n = 15) performed the same exercises as those in the control group ,in addition received eccentric strengthening exercises for the hip abductors and lateral rotators. An 11-point numeric pain rating scale (NPRS), the Lower Extremity Functional Scale (LEFS) and the Anterior Knee Pain Scale (AKPS) were used as outcome measures during the baseline and at the end of 4weeks . Results: Statistics were retrieved using SPSS.16, paired 't' test was conducted to compare AKPS and LEFS values ,whereas, Mann- Whitney U test was used for NPRS value between the groups. After 4 weeks of treatment, the control group, pre and post-test value for AKPS (p<0.001),LEFS (P<0.001),NPRS (p<0.001) shows a statistical significance and even in the experimental group, pre and post-test value for AKPS (p<0.001),LEFS (P<0.001),NPRS (p<0.001) shows a statistical significance in pain and function, but comparing both the group experimental group is significantly more better AKPS (p=0.002),LEFS (P<0.001),NPRS (P<0.001) then a control group. Conclusion: short term Knee strengthening exercises supplemented by eccentric hip abductor and lateral rotator musculature–strengthening exercises were more effective than knee exercises alone in improving function and reducing pain in sedentary people with PFPS.


2020 ◽  
Vol 40 (3) ◽  
pp. 163-172
Author(s):  
Jatu Aviani ◽  
Suradi Suradi ◽  
Ana Rima

Backgrounds: Quadriceps muscle dysfunction in chronic obstructive pulmonary disease (COPD) is caused by systemic or local inflammation, hypoxia, hypercapnia, corticosteroid use, nutritional depletion, anabolic/catabolic hormone imbalances, oxidative stress, genetic susceptibility, and decreased daily activity. Decreased quadriceps muscle strength reduces exercise capacity, physical activity, increases shortness of breath, and decreases quality of life. Exercise trainng of walking increases the quadriceps muscle strength and overcomes deconditioning. The purpose of this study was to analyze effect of pedometer-based exercise on quadriceps muscle strength, quality of life, benefits, and cost on patients with stable COPD. Methods: A clinical study with quasi-experimental pre-post test control group design using consecutive sampling was performed in patients with stable COPD at Dr. Moewardi Hospital from September to November 2018. Subjects were divided into intervention group which were given pedometer based walking exercise for six weeks and control group with standard rehabilitation. Quadriceps muscle strength, SGRQ score, LCADL score, and cost effectiveness were measured before and after exercise. Results: Twenty-seven of stable COPD patients were included in this study. The intervention groups showed increased quadriceps muscle strength (2,58+0,49), decreased SGRQ scores (23,39+6,60), decreased LCDAL scores (-5,69+2,18), and cost effectiveness compared to control group (P


2007 ◽  
Vol 35 (10) ◽  
pp. 1668-1673 ◽  
Author(s):  
Jan Näslund ◽  
Markus Walden ◽  
Lars-Göran Lindberg

Background Anterior knee pain without clinical and radiologic abnormalities has primarily been explained from a purely structural view. A recently proposed biologic and homeostatic explanation questions the malalignment theory. No objective measurement of the pathophysiology responsible for changes in local homeostasis has been presented. Hypothesis Flexing the knee joint interferes with the perfusion of the patellar bone in patellofemoral pain syndrome. Study Design Case control study; Level of evidence, 4. Methods Pulsatile blood flow in the patella was measured continuously and noninvasively using photoplethysmography. Measurements were made with the patient in a resting position with knee flexion of 20° and after passive knee flexion to 90°. In total, 22 patients with patellofemoral pain syndrome were examined bilaterally, and 33 subjects with healthy knees served as controls. Results The pulsatile blood flow in the patient group decreased after passive knee flexion from 20° to 90° (systematic change in position, or relative position [RP] = —0.32; 95% confidence interval for RP, —0.48 to —0.17), while the response in the control group showed no distinct pattern (RP = 0.17; 95% confidence interval for RP, —0.05 to 0.31). The difference between the groups was significant (P = .0002). The median change in patients was —26% (interquartile range, 37). Conclusions Pulsatile patellar blood flow in patellofemoral pain syndrome patients is markedly reduced when the knee is being flexed, which supports the previous notion of an ischemic mechanism involved in the pathogenesis of this pain syndrome.


Author(s):  
Hugo Machado Sanchez ◽  
Eliane Gouveia de Morais Sanchez ◽  
Savana Brandão Nascimento

Background: Patellofemoral pain syndrome (PFPS) is one of the most common conditions in the knee joint, there still unclear etiology. Objective: The objective of this study was to investigate the association of PFPS with the morphology of the hip. Method/Design: For this study were evaluated 41 university students aged between 18 and 30 years divided into group with PFPS and control group, in which we analyzed the distance from the anterior superior iliac spine (ASIS), length of the lower limbs (LL) away from the patella ASIS bilaterally, lateral bending and iliac slope. Results: After data collection and subsequent tabulation, it was found that the group with PFPS showed contralateral iliac increase the pain (p = 0.01), moreover, was also found to the side of prevalence of pain is the side not dominant (p = 0.00). Conclusions: It can be inferred that there is little relationship between the morphological changes of the hip with the PFPS, as only found a side tilt of the pelvis in volunteer group that reported a previous knee pain.


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