Papers by Dr. Mohammad-Reza Hadian
Introduction: Plantarflexor muscles produce propulsive force in the second half of stance phase; ... more Introduction: Plantarflexor muscles produce propulsive force in the second half of stance phase; deficient motor output from these muscles would lead to inadequate propulsion at push off phase of gait following stroke. It is important to develop strategies to improve plantarflexor output. This study examined the effects of walking on a treadmill at varying gradients and speeds on medial gastrocnemius (MG) muscle activation in stroke survivors. Materials and Methods: Nineteen stroke survivors (13M/6F: average age 55.37±7.54 years; body mass index 29.10±4.52kg/m2) participated in the study. Participants walked on a standard treadmill at three different positive inclines (0°, 3°, and 6°) and speeds (self-selected, self-selected+20%, self-selected+40%). The electromyographic activity of MG recorded at push off phase of the gait. Results: A linear mixed model regression analysis was used to analysis. The paretic MG muscle activity increased at faster speeds irrespective of incline (p 0.0...
Physical Treatments - Specific Physical Therapy Journal, 2016
Low back pain is a destructive health problem of present era. It is affecting over a large popula... more Low back pain is a destructive health problem of present era. It is affecting over a large population with huge economical loss. Office workers has a unique life style, they work in static body position with poor body posture for long periods of time. The musculoskeletal problems can lead to uneasiness or pain which can have a bad impact on quality of life. A study was done to find the prevalence and risk factors of low back pain (LBP) among the office workers of King Edward Medical University (KEMU), LahorePakistan. After the ethical approval from Institutional Review Board (IRB), KEMU -Lahore, a cross sectional study with sample size of 250 office workers calculated by using proportion formula of sample size estimation with 5% margin of error from KEMU with effect from Jan 2015 to Sep 2015 aged between 18-60 with at least 1 year work experience filled the validated questionnaires. Results showed that Point & life time prevalence of LBP among office workers of King Edward Medical U...
Disability and rehabilitation, 2021
PURPOSE The aim was to investigate the effect of video game training as compared to dual-task tra... more PURPOSE The aim was to investigate the effect of video game training as compared to dual-task training on gait initiation (GI) which is a sensitive indicator of balance deficiency in older adults. METHOD Sixty-six older adults were allocated to the video game-based training (intervention group) or the motor-cognitive dual-task training (active control group). The outcome measures were the mediolateral (ML)/anteroposterior (AP) displacement and velocity of COP during the phases of GI (anticipatory, weight transition, and locomotor). RESULTS The results indicated in the anticipatory phase, the ML & AP COP displacement were significantly increased at post-training relative to pre-training across both groups (p < 0.041). In the weight transition phase, the AP COP displacement & ML COP velocity were significantly increased at post-training than pre-training (p < 0.032). However, in the locomotor phase, within the intervention group, the ML COP displacement & ML COP velocity were si...
Tehran University Medical Journal, 2006
Background: The purpose of this study was to measure isokinetic maximum and average peak torque o... more Background: The purpose of this study was to measure isokinetic maximum and average peak torque of internal and external rotators of glenohumeral joint in volley ball and tennis players Methods: This study was performed on 17 professional female athletes (7 tennis players &10 volleyball players) with age ranged 18-28 years. The subjects had played in a skilled team for more than 3 years. They were free from injury to their dominant shoulder in the past year. Subjects performed a five minute warm up by shoulder wheel and Maximum average Peak Torque (APT) were obtained unilaterally by a Biodex System 3 with the arm of players in 90 degree abduction at 120,180 & 210 o/s. Players performed five trails of concentric movements with 30 second rest between them. Results: Maximum and average of maximum torques of shoulder rotator, in both groups, expect for internal rotators of tennis players, reduced by increase of movement speed (P<0.05). There are not significant difference between two...
Journal of Modern Rehabilitation, 2017
Introduction: Low back pain is the leading cause of activity limitation and work absence througho... more Introduction: Low back pain is the leading cause of activity limitation and work absence throughout the world among workers. Materials and Methods: Data were collected by using a self-administered questionnaire containing individual and work ergonomic items. The 11-point numeric scale (NPRS) was used to assess the pain intensity from the office workers at the time of the survey. Bivariate logistic regression analysis was used for predicting the risk factors of low back pain. Results: Demographic, personal, work ergonomic and psychosocial characteristics of office workers showed high prevalence of low back pain. The Point prevalence of LBP among the office workers of TUMS was 32.3% and the lifetime prevalence among them was 74.5%. Conclusion: High prevalence of LBP was reported among the office workers. Different individual as well as work related risk factors are worsening this condition which needs proper protective measures.
Background and Aim: Several stretching methods have been shown to increase flexibility of the sho... more Background and Aim: Several stretching methods have been shown to increase flexibility of the short muscles. Previous research suggests muscle energy techniques produce increments in range of motion, but there are many variations of muscle energy techniques. The purpose of our study was to determine the efficacy of muscle energy techniques with 50% of maximal voluntary isometric contraction and 10 second hold in compared to control group. Materials and methods: A sample of 30 female subjects (aged 20 -25 years) participated in this study. All subjects had limited hamstrings flexibility in degrees of passive knee extension. The subjects in experimental group (n=15) received 3 muscle energy techniques (50% MVIC, hold time=10 sec) for 4 weeks, whereas the control group (n=15) remained without treatment. Before and after range of knee extension was measured for all subjects. Results: The paired t test revealed a significant differences in flexibility for experimental group (P<0.001)....
Journal of Modern Rehabilitation
Introduction: Voluntary Response Index (VRI) is used as a measure of motor control to study abnor... more Introduction: Voluntary Response Index (VRI) is used as a measure of motor control to study abnormalities of voluntary movements. This study aimed to evaluate the reliability of voluntary response index analysis in subjects with Anterior Cruciate Ligament Reconstruction (ACLR).Materials and Methods: Using surface electromyography, the VRI components of both groups of 15 ACLR and 15 healthy controls were assessed during the functional task (sit-stand-sit). The outcome variables of VRI included the magnitude and similarity index.Results: In sit to stand phase, high reliability was found (ICC=0.80-0.89) for the magnitude and similarity index in both groups. In the standing phase, high to very high reliability was found for the magnitude and similarity index in both groups (ICC=0.75-0.91). In stand to sit phase, high to very high reliability was found (ICC=0.78-0.92) for the magnitude and similarity index in both groups.Conclusion: Surface electromyographic measurements of VRI analysis ...
Archives of Neuroscience
Background: Sacroiliac Joint Dysfunction (SIJD) is considered an origin of low-back pain. It can ... more Background: Sacroiliac Joint Dysfunction (SIJD) is considered an origin of low-back pain. It can change the motor control strategy and postural control (PC). Objectives: We aimed to find any probable differences in PC between subjects with and without SIJD and determine the effects of the pelvic belt (PB) on PC. Methods: Thirty-eight subjects were assigned into two equal groups with and without SIJD. They started to walk from the place marked on a force plate for 10 seconds after hearing an auditory signal and performed three attempts for each foot. They repeated six more ones with PB. Raw data were imported to an excel software (version 2007) spreadsheet to calculate the reaction time (RT) and anticipatory postural adjustment (APA) as the components of PC. Results: Our results showed a significant difference in RT between the SIJD-affected and non-affected sides (P = 0.035), but there was no significant difference in APA (P = 0.057). There were significant differences in RT and APA...
Archives of Neuroscience
Objectives: The main aim of this study was to determine and compare the effects of innovative aqu... more Objectives: The main aim of this study was to determine and compare the effects of innovative aquatic proprioceptive training plus conventional rehabilitation with conventional rehabilitation alone on voluntary response index (VRI) components in athletes with anterior cruciate ligament reconstruction (ACLR). Methods: Forty male athletes with ACLR (18 - 35 years of age) voluntarily participated in this study. They were randomly allocated into two groups. The conventional therapy group (n = 20) underwent conventional rehabilitation for ten weeks, three sessions a week. The aquatic proprioceptive training plus conventional rehabilitation (n = 20) group received the same conventional rehabilitation plus 30 sessions of innovative hydrotherapy exercises. Voluntary response index analysis was carried out to determine changes in motor control and muscle activation patterns based on electromyographic (EMG) outcome measures. Results: There was a significant difference in the magnitude (MAG) a...
Parkinson's Disease
One of the most disabling nonmotor symptoms in persons with Parkinson’s disease is fatigue, which... more One of the most disabling nonmotor symptoms in persons with Parkinson’s disease is fatigue, which can decrease the quality of life by restricting the function and activities of daily living (ADL). Nonetheless, sufficient evidence for treating fatigue, including drug or nondrug treatment, is not available. In this study, we evaluated the probable effects of vestibular rehabilitation on fatigue and ADL in patients with Parkinson’s disease. Methods. This was a single-blind clinical trial study in which patients with Parkinson’s disease voluntarily participated based on the inclusion and exclusion criteria. The patients were randomly assigned to the case and control groups. The case group received 24 sessions of vestibular rehabilitation protocol, and conventional rehabilitation was performed in the control group (i.e., 3 sessions each week, each lasted about 60 minutes). Both groups were also given fatigue management advice. Fatigue was measured by the Parkinson Fatigue Scale (PFS) and...
Biomedical Research
Objective: Measurement of range of motion is used to measure the joint Position Sense (JPS). The ... more Objective: Measurement of range of motion is used to measure the joint Position Sense (JPS). The objective of this study was to give an easy and less costly method of measuring JPS. Methods: The study conducted at Tehran University of Medical Sciences, in Iran in May 2017. In this study researcher used the system of digital photographs, non-reflective markers and software for measuring the accuracy and reliability. The fixed arm of the goniometer was horizontal. The moveable arm was positioned at the 15° initially and then selected it at different degrees (30, 45, 60 and 75) randomly. 5 reference angles were selected from 15° to 75°. By using moving arm three photos were taken from each angle. Reliability and validity of measurement for each angle was disclosed by utilizing T-test, correlation (reliability test) and R square of regression (validity test). Also relative and absolute error is used to evaluate the accuracy of this method. Results: Results showed that mean (R^2) for validity is 0.99, T-test p-value for reliability is 0.41 it means there is no significant difference between these methods and for correlation (reliability) mean value was 0.97 and averages of absolute error and relative error were (-0.44 and 0.62) respectively. Conclusion: It was disclosed that method comprising of digital photography non-reflective markers showed similar results as compared to goniometer in terms of reliability, validity and accuracy of this method. In conclusion, it was a novel approach to measure JPS with salient features of user friendly, fast, less expensive, accurate and reliable.
Journal of Modern Rehabilitation
Ankle sprain is a common sports injury that can cause Functional Ankle Instability (FAI). Neuroco... more Ankle sprain is a common sports injury that can cause Functional Ankle Instability (FAI). Neurocognitive function impairment had been reported in subjects with musculoskeletal injuries. Consequently, information processing deficits might be associated with FAI. This study aimed to compare information processing speed and accuracy in athletes with and without FAI. Materials and Methods: Eighteen control healthy male basketball players and 18 male basketball players with FAI voluntarily participated in the study. They were matched according to age, height, weight, duration of physical activity, and upper-limb dominance. The neurocognitive function of subjects was assessed with the computerized neurocognitive test. The computerized neurocognitive assessment is based on the presentation of 'X' on a computer monitor and includes detection (i.e. simple reaction time [SRT]) or identification (i.e. Choice Reaction Time [CRT]). Results: Significant differences were observed between study groups in the SRT, CRT, and the number of errors (P<0.001). Subjects in the control group had a shorter reaction time and fewer errors. Discussion: Athletes with FAI had significantly slower reaction times. FAI affects processing speed and accuracy, which may be modifiable through the performance of exercises designed to accelerate neurocognitive processing of visual input.
Sports Orthopaedics and Traumatology
Summary Background Ankle sprain is a common sport injury that can lead to functional ankle instab... more Summary Background Ankle sprain is a common sport injury that can lead to functional ankle instability. Virtual Reality Training such as Wii Fit Plus may improve functional deficit often associated with functional ankle instability. Material and Methods Fifty male basketball players with and without unilateral, functional ankle instability were assigned into two groups of experimental and control, respectively. All athletes had inclusion criteria to participate in the study. The experimental group performed Wii Fit Plus games including balance training and strengthening exercises three days a week for four weeks. The control group received no training. Before and after training, the functional ability of individuals was assessed by functional performance tests including the figure-of-8 hop, side hop, and single hop tests. Results Significant differences were observed in the figure-of-8 hop and side hop before and after training (p 0.05). Conclusion Based on our results, Wii as a neuromuscular training could be considered for individuals with functional ankle instability as a useful tool for improving the power and performances.
JBI Database of Systematic Reviews and Implementation Reports
REVIEW QUESTION The question of this review is: are there differences in quadriceps architectural... more REVIEW QUESTION The question of this review is: are there differences in quadriceps architectural parameters between healthy individuals and those with patellofemoral pain?
Introduction: Plantarflexor muscles produce propulsive force in the second half of stance phase; ... more Introduction: Plantarflexor muscles produce propulsive force in the second half of stance phase; deficient motor output from these muscles would lead to inadequate propulsion at push off phase of gait following stroke. It is important to develop strategies to improve plantarflexor output. This study examined the effects of walking on a treadmill at varying gradients and speeds on medial gastrocnemius (MG) muscle activation in stroke survivors. Materials and Methods: Nineteen stroke survivors (13M/6F: average age 55.37±7.54 years; body mass index 29.10±4.52kg/m2) participated in the study. Participants walked on a standard treadmill at three different positive inclines (0°, 3°, and 6°) and speeds (self-selected, self-selected+20%, self-selected+40%). The electromyographic activity of MG recorded at push off phase of the gait. Results: A linear mixed model regression analysis was used to analysis. The paretic MG muscle activity increased at faster speeds irrespective of incline (p 0.0...
Physical Treatments - Specific Physical Therapy Journal, 2016
Low back pain is a destructive health problem of present era. It is affecting over a large popula... more Low back pain is a destructive health problem of present era. It is affecting over a large population with huge economical loss. Office workers has a unique life style, they work in static body position with poor body posture for long periods of time. The musculoskeletal problems can lead to uneasiness or pain which can have a bad impact on quality of life. A study was done to find the prevalence and risk factors of low back pain (LBP) among the office workers of King Edward Medical University (KEMU), LahorePakistan. After the ethical approval from Institutional Review Board (IRB), KEMU -Lahore, a cross sectional study with sample size of 250 office workers calculated by using proportion formula of sample size estimation with 5% margin of error from KEMU with effect from Jan 2015 to Sep 2015 aged between 18-60 with at least 1 year work experience filled the validated questionnaires. Results showed that Point & life time prevalence of LBP among office workers of King Edward Medical U...
Disability and rehabilitation, 2021
PURPOSE The aim was to investigate the effect of video game training as compared to dual-task tra... more PURPOSE The aim was to investigate the effect of video game training as compared to dual-task training on gait initiation (GI) which is a sensitive indicator of balance deficiency in older adults. METHOD Sixty-six older adults were allocated to the video game-based training (intervention group) or the motor-cognitive dual-task training (active control group). The outcome measures were the mediolateral (ML)/anteroposterior (AP) displacement and velocity of COP during the phases of GI (anticipatory, weight transition, and locomotor). RESULTS The results indicated in the anticipatory phase, the ML & AP COP displacement were significantly increased at post-training relative to pre-training across both groups (p < 0.041). In the weight transition phase, the AP COP displacement & ML COP velocity were significantly increased at post-training than pre-training (p < 0.032). However, in the locomotor phase, within the intervention group, the ML COP displacement & ML COP velocity were si...
Tehran University Medical Journal, 2006
Background: The purpose of this study was to measure isokinetic maximum and average peak torque o... more Background: The purpose of this study was to measure isokinetic maximum and average peak torque of internal and external rotators of glenohumeral joint in volley ball and tennis players Methods: This study was performed on 17 professional female athletes (7 tennis players &10 volleyball players) with age ranged 18-28 years. The subjects had played in a skilled team for more than 3 years. They were free from injury to their dominant shoulder in the past year. Subjects performed a five minute warm up by shoulder wheel and Maximum average Peak Torque (APT) were obtained unilaterally by a Biodex System 3 with the arm of players in 90 degree abduction at 120,180 & 210 o/s. Players performed five trails of concentric movements with 30 second rest between them. Results: Maximum and average of maximum torques of shoulder rotator, in both groups, expect for internal rotators of tennis players, reduced by increase of movement speed (P<0.05). There are not significant difference between two...
Journal of Modern Rehabilitation, 2017
Introduction: Low back pain is the leading cause of activity limitation and work absence througho... more Introduction: Low back pain is the leading cause of activity limitation and work absence throughout the world among workers. Materials and Methods: Data were collected by using a self-administered questionnaire containing individual and work ergonomic items. The 11-point numeric scale (NPRS) was used to assess the pain intensity from the office workers at the time of the survey. Bivariate logistic regression analysis was used for predicting the risk factors of low back pain. Results: Demographic, personal, work ergonomic and psychosocial characteristics of office workers showed high prevalence of low back pain. The Point prevalence of LBP among the office workers of TUMS was 32.3% and the lifetime prevalence among them was 74.5%. Conclusion: High prevalence of LBP was reported among the office workers. Different individual as well as work related risk factors are worsening this condition which needs proper protective measures.
Background and Aim: Several stretching methods have been shown to increase flexibility of the sho... more Background and Aim: Several stretching methods have been shown to increase flexibility of the short muscles. Previous research suggests muscle energy techniques produce increments in range of motion, but there are many variations of muscle energy techniques. The purpose of our study was to determine the efficacy of muscle energy techniques with 50% of maximal voluntary isometric contraction and 10 second hold in compared to control group. Materials and methods: A sample of 30 female subjects (aged 20 -25 years) participated in this study. All subjects had limited hamstrings flexibility in degrees of passive knee extension. The subjects in experimental group (n=15) received 3 muscle energy techniques (50% MVIC, hold time=10 sec) for 4 weeks, whereas the control group (n=15) remained without treatment. Before and after range of knee extension was measured for all subjects. Results: The paired t test revealed a significant differences in flexibility for experimental group (P<0.001)....
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Papers by Dr. Mohammad-Reza Hadian