Abbas Rahimi | Shahid Beheshti University of Medical Sciences (original) (raw)

Papers by Abbas Rahimi

Rehabilitation Medicine, Jul 5, 2016

The Korean Journal of Pain, 2016

Myofascial pain syndrome (MPS) is one of the common musculoskeletal conditions of the shoulder wh... more Myofascial pain syndrome (MPS) is one of the common musculoskeletal conditions of the shoulder which may develop sensory-motor and autonomic dysfunctions at the various level of the neuromuscular system. The pain and dysfunction caused by MPS were primarily treated with physical therapy and pharmacological agents in order to achieve painfree movements. However, in recent years intramuscular electrical stimulation (IMES) with conventional electrode placement was used by researchers to maximise therapeutic values. But, in this study an inverse electrode placement was used to deliver electrical impulses intramuscularly to achieve neuro-modulation at the various level of the nervous system. Nine patients with MPS were treated with intramuscular electrode stimulation using inversely placed electrodes for a period of three weeks. All nine subjects recovered from their shoulder pain and disability within the few weeks of intervention. So, this inverse electrode placement may be more appropriate for chronic pain management.

Iranian Journal of Orthopaedic Surgery, 2015

Background: Hallux valgus is one of the most prevalent deformities which causes changes in the ce... more Background: Hallux valgus is one of the most prevalent deformities which causes changes in the center of pressure (COP) and standing balance. This paper looks at the mechanical changes of spacer pads used for such a deformity. Methods: In this quasi experimental study, 24 people suffering from hallux valgus were reffered to a trainig hospital in Tehran, Iran. A Bertec force plate was used to collect data related to COP parameters. The balance tests of TUG and FR were used to evaluate the changes in balance. The tests were done without and with toe spacers in a 15 second period of time and the COP displacement in anteroposterior and mediolateral directions and also the path length of COP displacement, velocity of COP displacement and confidence ellipse of the COP were measured. The data were analyzed using statistical tests. Results: Using the toe spacers did not cause a significant change in displacement of COP in anteroposterior and mediolateral directions, confidence ellipse, velo...

Background and Aim: The purpose of this study was to investigate whether the additional sensory i... more Background and Aim: The purpose of this study was to investigate whether the additional sensory information could improve dynamic balance in individuals with anterior cruciate ligament (ACL) injury in comparison with healthy adults. Materials and Methods: 15 individuals with anterior cruciate ligament injury (mean age 28.9±4.7, male) and 15 healthy control subjects (mean age 26.1±3.8, male) participated in this study.participants were completed the star excursion balance test under two sensory conditions: with and without using light touch.The force sensor that placed on the light touch device transfer the sensory informations from index finger to the microprocessor and proper feedback was produced. Results: The results showed significant differences after using light touch in anterior cruciate ligament deficiency patients in compared with control group in these directions : medial(P=0.001),posterior(p=0.001),lateral(P=0.001), anterolateral(P=0.001), Posterolateral (P=0.001) and pos...

British Journal of Sports Medicine, 2010

Sufficient evidence support benefit of effective communication on patients' satisfaction and thei... more Sufficient evidence support benefit of effective communication on patients' satisfaction and their care. The Listening Styles Profile-Revised (LSP-R) is the most widely used self-report listening instrument in the communication discipline. →What this article adds: Persian version of LSP-R is a valid and reliable instrument for assessing listening styles profile of Iranian students. Majority of medical students (73%) as well as majority of nursing students (70%) stated that their listening styles had been taskoriented.

Middle East Journal of Rehabilitation and Health Studies

Background: Following an anterior cruciate ligament (ACL) rupture, proprioceptive deficiency may ... more Background: Following an anterior cruciate ligament (ACL) rupture, proprioceptive deficiency may be responsible for functional balance defects and joint instability. Recently, using transcranial direct current stimulation (tDCS) or biofeedback has been recommended for athletes with ACL rupture. Objectives: This study aimed to evaluate the effects of tDCS and biofeedback modalities while performing contraction exercises in athlete with an ACL rupture. Methods: Thirty-three athletes with ACL rupture were randomly divided into three groups of tDCS, biofeedback, and control, with 11 people in each group. All groups underwent a ten-session training of intermittent contractions of the lower extremity muscles in a standing position at different knee angles, including 30, 45, and 90 degrees of knee flexion during four weeks. The control group received no tDCS or biofeedback modalities except the contraction exercises. All subjects were evaluated both before and at the end of interventions. ...

Rehabilitation Medicine, 2012

Background and Aim: Materials and Methods: This descriptive study was carried out using a self-co... more Background and Aim: Materials and Methods: This descriptive study was carried out using a self-constructed and the American Orthopaedic Foot and Ankle Society (AOFAS) questionnaires among 290 university students with the mean age of 21±2 years old. The HV angles (HVA) was described as normal for up to 20o, mild for angles between 21o and 25o, moderate for angles between 26o and 40o, and severe for angles higher than 40 o. Then, the HVA of the subjects of this study was compared with the data from other societies. Results: The results of this study showed a 34.1% involvement of the participants (30% females and 41% males). 58% of the subjects showed a bilateral hallux valgus involvement. No significant differences were found between the males and females in terms of the severity of the deformity and the right or left side involvement (P>0.05). 71% of the involved subjects showed a mild degree and 29% showed a moderate degree of deformity. No severe deformity (above 40o) was found ...

Background and Aim: Osteoarthritis is the most common joint disease in adults around the world an... more Background and Aim: Osteoarthritis is the most common joint disease in adults around the world and plays a great role in inducing disability in elderly. Patients suffering from severe knee osteoarthritis usually complain of pain and severe functional disability. For these patients, conservative treatments are often induces least remedy for pain and improvement of functional ability. This study evaluates the effects of knee mechanical traction on pain, edema, range of movement and functional ability in patients with severe knee osteoarthritis. Materials and Methods: In this clinical trial, forty women with severe knee OA (grade 3 & 4 on the Kellgren-Lawrence grading scale) were recruited and randomly divided into two groups with different treatment protocols (common physiotherapy treatment and common physiotherapy treatment accompanied by knee traction). Functional capacity and level of pain were assessed by 6-minute walking test and visual analog scale respectively. A goniometer was used to measure knee range of movement and edema was also evaluated by use of measuring tape. Results: Common physiotherapy treatment accompanied by knee traction compared to common physiotherapy treatment leads to significant decrease in pain (P<0.01) and increase in functional capacity (P<0.05). Conclusion: Common physiotherapy treatment accompanied by knee traction is a more effective treatment than common physiotherapy procedure in patients with severe knee osteoarthritis.

Background and Aim: An immaculate review of the literature reveals some changes on the vertical g... more Background and Aim: An immaculate review of the literature reveals some changes on the vertical ground reaction force (VGRF) in ACL deficient knee subjects. However, the details are not clear yet. The current study aimed to study these changes in the ACL-deficient and apparently healthy knees of the coper and non-coper ACL-deficient knee subjects in comparison with the normal knees. Materials and Methods: Sixteen unilateral ACL-torn subjects included 8 copers and 8 non-copers were recruited in this quasi-experimental study and were compared with 16 normal knee subjects (8 subjects matched to each coper and non-coper groups). All subjects walked barefoot and with their preferred speed in a 6-meter walkway and placed their wanted foot on the platform of a Zebris pedobarograph tool. The patients were asked to place their injured and healthy feet separately on the platform. The control group placed their foot matched to the ACL-deficient legs on the platform. The testes were repeated so much to have five acceptable trials. The outcome measures included the peak F1Z, F2Z, F3Z of the vertical ground reaction force values and the times to reach these peak values as well as total stance time of the tested feet. Results: The results showed only a significant lower F 1 Z value in the non-coper ACL-deficient knee subjects (p=0.008). No significant changes were shown in the F 2 Z, F 3 Z or the times reach to F 1 Z, F 2 Z and F 3 Z values (p>0.05). The stance time of the coper ACL-deficient knee subjects increased significantly in the non-coper ACL-deficeint knee subjects when compared to the coper and healthy knees (p=0.005). Conclusion: The reduced F1Z of the vertical ground reaction force at initial contact as well as increased total stance time seen only in non-coper ACL-deficient knee subjects reveals inadequate compensatory mechanism in these patients as a counter force stress at initial contact and weight bearing. However, the coper ACL-deficient knee subjects compensated these forces with good strategies and walked very similar to the control group.

Background & Objectives: Despite an increased risk of obesity and CHD in people with spinal cord ... more Background & Objectives: Despite an increased risk of obesity and CHD in people with spinal cord injury (SCI), there is little known about the dietary intake in this group, therefore the aim of this study was to examine nutrient intake and body mass index (BMI) in the spinal cord injury (SCI) population according to level of injury and related variables. Methods: In this cross-sectional study, 162 patients with spinal cord injury participated from Brain and Spinal Injury Repair research Center, Tehran, Iran. Dietary intakes were assessed by means of a semi quantitative food frequency questionnaire. Results: The mean age of study population was 34.1±0.6 years. Total energy and carbohydrate intake were higher in men than women (P<0.001). Incomplete injured consumed more MUFA (P=0.03). The elderly were consumed less total calorie, saturated fat, MUFA, cholesterol (P<0.01) and PUFA (P<0.05). Injured patients with longer times had lower total calorie, carbohydrate (P<0.01), total fat and MUFA intake (P<0.05). Based on new classification 60.5% were at the risk of obesity or obese. Central obesity was seen in 33.1%of man and 48.4% of women. BMI of the paraplegia group was greater than that of the tetraplegia group (P= 0.009). Conclusion: Macronutrients balance is moved towards higher saturated fat intake and less complex carbohydrates and protein intake in SCI patient's .The elderly and patients who had lived with SCI longer time tended to maintain healthier diets.

Objectives: Diminished proprioception after an anterior cruciate ligament (ACL) rupture causes di... more Objectives: Diminished proprioception after an anterior cruciate ligament (ACL) rupture causes disabilities following injury. The aim of this study was to investigate the trend of this change during six months following an isolated unilateral complete ACL rupture. Materials and Methods: In this cohort study, a total of 58 male and female athletes, aged 20-40 years, were surveyed in equal groups with 29 subjects. The healthy (first) and ACLD (second) groups included athletes with isolated unilateral complete ACL ruptures (the ACL-deficient knee group). Knee proprioception was investigated in both groups in three stages, namely, at the beginning of the study (two months after the injury in the ACL-D group) and the intervals of two and four months after the first assessment. The active reproduction of passive positioning (ARPP) method was used in this study. The selected angles were 45° and 60° of knee flexion, and an isokinetic device was the measuring instrument. Three reproduction angular errors were compared between three measurements in each test, including constant error (CE), absolute error (AE), and variable error (VE). Results: The results showed that AE and VE, unlike CE, significantly changed within both groups. AE (P ≤ 0.002, P ≤ 0.001 for 45° and 60°, respectively) and VE (P ≤ 0.043 for 45°), as well as AE (P ≤ 0.002, P ≤ 0.001 for 45°and 60°, respectively) and VE (P ≤ 0.005, P ≤ 0.016 for 45° and 60°, respectively) were significant in the healthy and ACL-D groups, respectively. In addition, a significant difference was observed between healthy and ACL-D groups regarding knee proprioception. At 45°, CE, AE, and VE were significant in the first (P ≤ 0.024), the third (P ≤ 0.014), and all three (P ≤ 0.001, P ≤ 0.027, & P ≤ 0.001) tests, respectively. Finally, AE, VE, and CE were found to be significant in the second (P ≤ 0.001), second (P ≤ 0.004), and third (P ≤ 0.026) tests, at 60°, respectively. Conclusions: In general, ACL rupture reduced knee proprioception after the injury in athletes compared to healthy individuals. Within-group differences, as well as differences between healthy and injured athletes diminished over time within six months after the injury. Eventually, knee proprioception improved in individuals with ACL rupture although the exact mechanism of these changes remains unknown.

2016; 5(3): 12-21. arzadeh Baghban. Effects of long-term use of the high-heel shoes on the planta... more 2016; 5(3): 12-21. arzadeh Baghban. Effects of long-term use of the high-heel shoes on the plantar pressure pattern in women's feet Abstract Background and Aim: The foot is the only anatomical structure that contacts the ground during walking and resists against the applied forces at the distal part of the lower extremity chain. An abnormal movement as well as high peak forces cause injuries to the feet and their soft tissues due to improper force distribution, which might lead to extensive foot disorders. Too much pressure and/or unequal force distribution is a major factor in foot disorders. Since, nowadays, many women routinely use high-heel shoes, its routine use may cause significant effects on their skeletal structures. The current study aimed to study foot pressure patterns in women using high-heel shoes. Materials and Methods: The current observational-analytical study implemented case-control technique including two groups of 35 participants. The experimental group had ...

Background and Aim: Research show extensive physiological and postural changes in pregnancy, part... more Background and Aim: Research show extensive physiological and postural changes in pregnancy, particularly during the first pregnancy. These changes are in sense of balance, neurological and mechanical forms. The precise changes in postures of each parts of the body in primigravida women are still ambiguous. The current study aims to find out spinal and pelvic changes in these women in static standing. Materials and Methods: The lumbar and thoracic curves and pelvic inclination angles of thirty primigravida women (age 25±1, BMI 23±1) in the first, second and third trimesters (Weeks 10, 21 and 32 of pregnancy) were recruited in this cohort study and were compared with 18 age-BMI matched non- pregnant women (age 24±1, BMI 23±1) in a static standing posture. The curvatures were measured with use of a flexible ruler and the pelvic inclination angle was measured by a pelvic inclinometer device. Before starting the main study, the reliability and repeatability of the flexible ruler and pe...

Introduction: Vast majority of the muscular disorders are known to be related to Sacroiliac joint... more Introduction: Vast majority of the muscular disorders are known to be related to Sacroiliac joint. Due to the main role played by Sacroiliac joint, the current study was conducted to examine the effect of the pain among the people suffering from Sacroiliac joint pain on the vertical ground reaction force parameter. Materials and Methods : This case control study was carried out on 19 participants with Sacroiliac joint pain, VAS 3-5 and average age of 27±5.7, and 19 subjects with normal health conditions and average age of 29±7.6. The relevant data were collected while the participants were asked to walk at their desired speed over the force plate located on their way. Later on, all the parameters of vertical ground reaction force in the stance phase were recorded. At the end, data collected were compared by independent T-test in SPSS. Results: The results of the study revealed that participants distributed in control (healthy individuals) and experimental (individuals with Sacroilia...

Journal of Chiropractic Medicine, 2016

Objective: The purpose of this study was to investigate the effects of passive versus active soft... more Objective: The purpose of this study was to investigate the effects of passive versus active soft tissue therapies on pain and ranges of motion in women with latent myofascial trigger points. Methods: Forty-two female patients, aged 18 to 64 years, with a history of neck pain and latent myofascial trigger points in the upper trapezius muscle were randomly assigned to 3 groups: group A received passive soft tissue therapy, group B received active soft tissue therapy, and a control group C received a sham procedure. The treatment consisted of 3 sessions in a 1-week period with 1-day break between each session. The local pain intensity, measured with a visual analog scale and pain pressure threshold (PPT) using algometry, and active cervical contralateral flexion (ACLF) measured with goniometry, were obtained at baseline, after the third session, and a week after the third session. Results: The results indicated a significant decrease in local pain intensity on the visual analog scale within each group (A and B) compared with the control group (C) (P b .05). The passive group had significant improvement in PPT compared with the control group (P b .05). There were no significant differences in ACLF after treatment between the 3 groups (P N .05). Conclusion: Both passive and active soft tissue therapies were determined to reduce pain intensity and increase ACLF range of motion, although passive therapy was more effective in increasing PPT in these patients compared with the control group.

Ortopedia Traumatologia Rehabilitacja, 2016

Patellofemoral pain (PFP) is a common knee disorder in orthopedic clinics. In the last decade, se... more Patellofemoral pain (PFP) is a common knee disorder in orthopedic clinics. In the last decade, several investigations have considered the role of proximal factors in addition to local and distal factors in development of PFP. There is a hypothesis which suggests that impaired neuromuscular control and altered hip joint kinematic affect tibiofemoral and patellofemoral biomechanics. Hence, PFP may develop as a result. This article reviews studies assessing the relationship between altered hip mechanics and PFP. The Medline and PubMed databases were searched between January 2004 and October 2014. Two authors independently selected related articles using the same search strategy and key words. Among 149 articles, 16 met the review inclusion criteria. The study results were described in three sections: 1) kinematic studies, 2) muscle activity studies, and 3) postural stability studies. Increased hip adduction and internal rotation, gluteal muscle weakness, and neuromuscular impairment were common findings in patients with patellofemoral pain. Precise assessment of hip mechanics, including hip kinematic, muscle performance and postural stability, should be considered in the examination of patients with patellofemoral pain.

The aim of the present study was to compare the performance of the vertical jump task and the lev... more The aim of the present study was to compare the performance of the vertical jump task and the level of disability between the coper and non-coper athletes with an anterior cruciate ligament-minus knee. Methods: Thirty-four professional male athletes with isolated complete anterior cruciate ligament-tear (age 20-29 years and 6-12 months time past injury) were recruited in this study. The subjects were allocated into the coper (n=17) and non-coper (n=17) groups according to their history of having giving way and feeling an instability in their injured knee. The maximum vertical jump height was recorded by a 6-camera Vicon motion analysis system. The functional outcomes of the subjects were assessed with use of the Persian versions of the International Knee Documentation Committee, Knee Injury and Osteoarthritis Outcome Score and Tegner Questionnaires. Results: The results revealed that the coper ACK-deficient knee subjects had a significantly higher International Knee Documentation Committee score as well as two subscales of the KOOS questionnaire including the sports (p=0.001) and the quality of life (p=0.016) than non-copers. However, the subscales of pain (p=0.0137), symptoms (p=0.353) and the activities of daily living (p=0.133) of the KOOS questionnaire did not show any significant differences between the coper and non-coper ACL-deficient knee subjects. In addition, the maximum jumping height was significantly higher in the copers too (p=0.008). Discussion: While the pain, symptoms and daily activities were not different between the two groups, a higher level of the functional abilities, sports activities, quality of life and the maximum jumping height were shown in the coper ACL-deficient knee subjects when compared to the non-copers. A deliberate evaluation of the functional abilities in ACL-deficient knee subjects might play a key role in distinguishing the coper and non-coper ACL-deficient knee subjects.

The Foot, 2008

Background: Usually the rate of lower extremity's injuries in sports such as running is known to ... more Background: Usually the rate of lower extremity's injuries in sports such as running is known to be correlated with the height of foot arches. Foot pressure measurement studies have shown controversial results in this issue, mainly due to the complexity of the foot structure. This study aimed to investigate if any relationship exists between the MLA height and the ankle/knee injuries in professional runners. It was also aimed to find out any association between the foot pressure patterns and the clinical navicular drop test in the subjects. Materials and methods: Forty-seven professional runners were participated in this study and using the clinical navicular drop test, they were categorized into normal, low and high arch foot subjects. Using an Emed pedography platform (Novel, Germany), the maximum force, peak pressure and the contact area of their feet were studied in both static (single limb support) and dynamic conditions. Results: The results of this study showed no strong correlation between the height of MLA and the rate of the ankle/knee injuries (P = 0.58). The correlation between the clinical navicular drop test and the modified arch index (MAI) was between 0.32 in static and 0.57 in dynamic tests. Conclusion: The results of this study conveyed that having a lower or higher than a normal MLA is not a definite risk factor for sports-related injuries. This might be due to the complexity of the foot structure and its ability to accommodate with new situations routinely occurs in sport. Furthermore, although a high correlation was not found between the clinical navicular drop test and the foot pressure indices, due to the clinical entity of this test, the obtained association is relatively good. A significant correlation was found between the foot pressure distribution in single limb support (static) and the dynamic conditions, which provides an extrapolation of the results of this type static condition tests to the dynamic conditions.