Asghar Rezasoltani - Academia.edu (original) (raw)
Papers by Asghar Rezasoltani
Journal of Back and Musculoskeletal Rehabilitation, 2005
... a Physiotherapy Department, Rehabilitation Faculty, Semnan University of Medical Sciences, Se... more ... a Physiotherapy Department, Rehabilitation Faculty, Semnan University of Medical Sciences, Semnan, Iran b Physiotherapy Department, Rehabilitation Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran Abstract. ...
Journal of Physical Therapy Science, 2016
[Purpose] The aim of this study was to determine the reliability of a newly designed dynamometric... more [Purpose] The aim of this study was to determine the reliability of a newly designed dynamometric device for use in frequent force producing/reproducing tasks on the knee joint. [Subjects and Methods] In this cross-sectional study (Development & Reliability), 30 young healthy males and females (age 23.4 ± 2.48 years) were selected among students of Tabriz University of Medical Sciences by simple randomized selection. The study instrument was designed to measure any isometric contraction force exerted by the knee joint flexor/extensor muscles, known as the ipsilateral and contralateral methods. Participant knees were fixed in 60° flexion, and each participant completed the entire set of measurements twice, 72 hours apart. [Results] The findings showed a good intraclass correlation coefficient of 0.73 to 0.81 for all muscle groups. The standard error of measurement and smallest detectable difference for flexor muscle groups were 0.37 and 1.02, respectively, while the values increased to standard error of measurement=0.38 and smallest detectable difference=1.05 for extensor muscle groups. [Conclusion] The device designed could quantify the forces producing/reproducing tasks on the knee joint with a high rate of reliability, and can probably be applied for outcome measurements in proprioceptive assessment of the knee joint.
CRANIO®, 2016
Craniocervical (CC) muscles control posture of the CC area. Muscle imbalance at this area induces... more Craniocervical (CC) muscles control posture of the CC area. Muscle imbalance at this area induces musculoskeletal disorders. The purpose of this study was to develop a device for measuring isometric force of CC flexor and extensor muscles and to evaluate its intra-rater reliability. Isometric force of CC flexor and extensor muscles was measured in 20 women by one examiner on two days with a custom-made device. The intra-class correlation coefficient (ICC), standard error of measurements (SEM), smallest detectable difference (SDD), and Pearson correlation coefficient were computed. The results of this study revealed that this device had excellent reliability (ICC: 0.98, SEM: 2.29 N, SDD: 6.36 N, Pearson correlation coefficient: 0.97 for CC flexor muscles and ICC: 0.97, SEM: 2.13 N, SDD: 5.91 N, Pearson correlation coefficient: 0.94 for CC extensor muscles). This new device can improve knowledge about the CC muscle and efficacy of treatments in patients with poor posture.
Journal of Gorgan University of Medical Sciences, Mar 1, 2010
Scand J Med Sci Sports, 2007
Neck muscle ultrasonography of male weight-lifter s, wrestlers and controls Rezasoltani A, Malkia... more Neck muscle ultrasonography of male weight-lifter s, wrestlers and controls Rezasoltani A, Malkia E, Vihko V. Neck muscle ultrasonography of male weight-lifters, wrestlers and controls. Scand J Med Sci Sports 1999: 9: 214-118. 0 Munksgaard. 1999 The purpose of this cross-sectional study was to evaluate the effect of different sport training regimens on the size of the neck semispinalis capitis muscle (SECM). The cross-sectional area (CSA) and the linear dimensions of the SECM were measured bilaterally by real-time ultrasonography. Ten young Finnish elite level weight-lifters. 8 freestyle wrestlers and 10 controls (all male) participated in the study. Muscle CSA was significantly larger in wrestlers than in weight-lifters or controls (P<O.OOl). There was no significant difference in size between the right and left SECM in any of the subject groups, but the variation between sides (smaller vs. larger) was significantly higher in wrestlers than weight-lifters (P<0.05). CSA correlated with the multiplied linear dimensions (r=0.80, P<O.OOO). Neck muscle: ultrasonography appeared to be a useful method in evaluating the differences between two groups of athletes.
Clin Rehabil, 1998
To examine the reliability of measurements of semispinalis capitis muscle (SECM) cross-sectional ... more To examine the reliability of measurements of semispinalis capitis muscle (SECM) cross-sectional area (CSA) in prone and sitting positions, and to compare the muscle size in these two positions. Semispinalis capitis CSA was measured twice a day on two successive days with a real-time ultrasound apparatus. Eighteen males (aged 19-34 years) and 28 females (aged 19-34 years) were studied for the reliability test. Seven males and 12 females were randomly selected to compare SECM size in sitting and prone positions. The intraclass correlation coefficient (ICC) for repeatability measurements was r = 0.98 for the two positions. The correlation of the CSA in sitting and in prone positions was r = 0.93 (p < 0.01). There were no significant differences between CSA, linear dimensions and shape ratio of SECM in the two positions. In this study SECM ultrasonography appeared to be an accurate method in both positions, and position as such had no significant effects on the SECM cross-sectional size. Such accuracy allows neck muscle evaluation in clinical diagnosis and in follow-up studies during neck rehabilitation programmes.
Rehabilitation Medicine, Feb 20, 2013
Cervical multifidus is considered as one of the most important neck stabilizers. Weakness and mus... more Cervical multifidus is considered as one of the most important neck stabilizers. Weakness and muscular atrophy of this muscle were seen in patients with chronic neck pain. Ultrasonographic imaging is a non-invasive and feasible technique that commonly used to record such changes and measure muscle dimensions. Therefore, the aim of this study was to evaluate the reliability of ultrasonographic measurement of cervical multifidus muscle's dimensions during isometric contraction of neck muscles. Materials and Method: Ten subjects (5 patients with chronic neck pain and 5 healthy subjects) were recruited in this study. Cervical multifidus muscle's dimensions were measured at the level of forth cervical vertebrae. Ultrasonographic measurement of cervical multifidus muscle at rest, 50% and 100% of maximal voluntary contraction (MVC) were performed by one examiner within 1 week interval. The dimensions of cervical multifidus muscle including cross-sectional area (CSA), anterior posterior dimension (APD), and lateral dimension (LD) were measured. Intraclass correlation coefficients (ICC), standard error of measurement (SEM) and minimal detectable change (MDC) were computed for data analysis. Results: The between days reliability of maximum strength of neck muscles and multifidus muscle dimensions at rest, 50% and 100% of MVC of neck muscles were good to excellent (ICC=0.75-0.99).
CRANIO®, 2016
The stability of the craniocervical (CC) area is provided by CC muscles. Muscle imbalance between... more The stability of the craniocervical (CC) area is provided by CC muscles. Muscle imbalance between forces of these muscles may lead to forward head posture (FHP). FHP is one of the most prevalent abnormal postures in patients with neck pain. The aim of the present study was to compare isometric force of the CC flexor and extensor muscles between women with and without FHP. Isometric force of the CC flexor and extensor muscles were measured by a custom-made device and compared between 70 women with and without FHP (35 in each group). No significant difference was observed between the two groups regarding isometric force of the CC flexor and extensor muscles, but the ratio of the isometric force of the CC muscles (flexor to extensor) revealed significant difference between the two groups, and it was greater in the control group compared with that in the FHP group. The ratio of isometric force of the CC muscles (flexor to extensor) may be a good indicator for assessment of patients with FHP. This ratio may also be valuable to follow the results of therapeutic intervention for these patients.
Modern Rehabilitation, May 15, 2013
1 ، رﺿﺎﺳﻠﻄﺎﻧﯽ اﺻﻐﺮ دﮐﺘﺮ 2 ﺳﺨﺎﯾﯽ دﮐﺘﺮﺳﯿﺪﯾﻌﻘﻮب ، 3 ﺧﻠﺨﺎﻟﯽ ﻣﯿﻨﻮ دﮐﺘﺮ ، 4 رﻫﻨﻤﺎ ﻟﯿ... more 1 ، رﺿﺎﺳﻠﻄﺎﻧﯽ اﺻﻐﺮ دﮐﺘﺮ 2 ﺳﺨﺎﯾﯽ دﮐﺘﺮﺳﯿﺪﯾﻌﻘﻮب ، 3 ﺧﻠﺨﺎﻟﯽ ﻣﯿﻨﻮ دﮐﺘﺮ ، 4 رﻫﻨﻤﺎ ﻟﯿﻼ ، 5 ﺑﻪ ﻣﺒﺘﻼ زﻧﺎن در ﮔﺮدن ﻓﯿﺪوس ﻣﻮﻟﺘﯽ ﻋﻀﻠﻪ اﺑﻌﺎد ﻗﺮﯾﻨﮕﯽ ﺑﺮرﺳﯽ ... ﻣ ﭘﺰﺷ ﻋﻠﻮم داﻧﺸﮕﺎه ـ ﺗﻮاﻧﺒﺨﺸﯽ داﻧﺸﮑﺪه ـ ﻧﻮﯾﻦ ﺗﻮاﻧﺒﺨﺸﯽ ﭘﮋوﻫﺸﯽ ﻋﻠﻤﯽ ﺠﻠﻪ دوره ﺗﻬﺮان ﮑﯽ 7 ﺷﻤﺎره 1 ﺑﻬﺎر 92
Manual Therapy, 2015
Altered pattern of muscle activity is commonly seen with chronic neck pain (CNP). However, limite... more Altered pattern of muscle activity is commonly seen with chronic neck pain (CNP). However, limited investigations have been done on dorsal neck muscles&amp;amp;amp;amp;amp;amp;amp;#39; activity pattern while performing upper limb tasks in patients with CNP. To investigate dorsal neck muscles&amp;amp;amp;amp;amp;amp;amp;#39; thickness changes during isometric contraction of shoulder muscles. Case-control study. This study investigated dorsal neck muscles&amp;amp;amp;amp;amp;amp;amp;#39; thickness changes during isometric contraction of shoulder muscles in 20 healthy participants (mean age 27 ± 4.37) and 17 patients with CNP (mean age 29 ± 5.50). Effects of isometric force of shoulder muscles on dorsal neck muscles&amp;amp;amp;amp;amp;amp;amp;#39; thickness changes were also evaluated. Significant muscle × group interaction was observed for the dorsal neck muscles thickness changes (p = 0.008) indicating different pattern of muscle activity in terms of changes in muscle thickness of two groups. Significant main effects of direction was observed (P = 0.003), with the abduction had the greatest impact on changing the dorsal neck muscles thickness. patients with CNP showed altered pattern of muscle thickness changes in comparison to healthy participants. Isometric abduction of shoulder muscles induced the greatest changes of dorsal neck muscles thickness among other force directions.
Journal of Research in Rehabilitation Sciences, Jul 10, 2013
Journal of Rehabilitation, Jun 15, 2011
Brazilian Journal of Physical Therapy, 2015
This study was conducted with the purpose of evaluating the inter-session reliability of new soft... more This study was conducted with the purpose of evaluating the inter-session reliability of new software to measure the diameters of the cervical multifidus muscle (CMM), both at rest and during isometric contractions of the shoulder abductors in subjects with neck pain and in healthy individuals. In the present study, the reliability of measuring the diameters of the CMM with the Sonosynch software was evaluated by using 24 participants, including 12 subjects with chronic neck pain and 12 healthy individuals. The anterior-posterior diameter (APD) and the lateral diameter (LD) of the CMM were measured in a resting state and then repeated during isometric contraction of the shoulder abductors. Measurements were taken on separate occasions 3 to 7 days apart in order to determine inter-session reliability. Intraclass correlation coefficient (ICC), standard error of measurement (SEM), and smallest detectable difference (SDD) were used to evaluate the relative and absolute reliability, respectively. The Sonosynch software has shown to be highly reliable in measuring the diameters of the CMM both in healthy subjects and in those with neck pain. The ICCs 95% CI for APD ranged from 0.84 to 0.94 in subjects with neck pain and from 0.86 to 0.94 in healthy subjects. For LD, the ICC 95% CI ranged from 0.64 to 0.95 in subjects with neck pain and from 0.82 to 0.92 in healthy subjects. Ultrasonographic measurement of the diameters of the CMM using Sonosynch has proved to be reliable especially for APD in healthy subjects as well as subjects with neck pain.
Journal of back and musculoskeletal rehabilitation, Jan 26, 2015
The effect of different exercise programs on cervical flexor muscles dimensions in patients with ... more The effect of different exercise programs on cervical flexor muscles dimensions in patients with chronic neck pain is yet to be demonstrated. The purpose of this study was to assess the effect of two exercise programs; craniocervical flexion (CCF) and cervical flexion (CF), on flexor muscles dimensions in patients with chronic neck pain. Following ethical approval, 60 patients were randomly assigned into either a CCF group or a CF group. Patients in the CCF group were given CCF exercises and those in the CF group received CF exercises. All patients received interventions for a period of ten weeks. Pain intensity and functional disability were assessed using numerical pain rate scale and neck disability index, respectively. Dimensions of longus colli (LC) and sternoclidomastoid (SCM) muscles were measured using ultrasonography (US). All measurements were taken before and after interventions. Following intervention, the CCF group demonstrated a significant increase in LC muscle dimens...
Neck muscle weakness and atrophy are two common causes of pain and disability among office worker... more Neck muscle weakness and atrophy are two common causes of pain and disability among office workers. The aim of this study was to compare the strength of the neck extensor and flexor muscles and the size of the semispinalis capitis muscle (SECM) in patients with chronic non-specific neck pain (CNNP) and healthy subjects. Twenty female office workers (10 patients with CNNP and 10 healthy subjects) participated in this study. The strength of the neck extensor and flexor muscles was measured by an isometric device and the SECM size was measured by ultrasonography. Neck muscle strength, size of the SECM and the ratios of neck strength to body weight, neck extensor strength to SECM size, SECM size to body weight and neck flexor to extensor strength were all significantly lower in patients compared to controls (P < 0.05). In conclusion, neck strength, the size of the SECM and the ratio of neck muscle strength to SECM size appear to be useful parameters in appraising patients with CNNP.
Journal of rehabilitation research and development
The anatomy of the human cervical region has a special complexity. Ultrasonography is a scanning ... more The anatomy of the human cervical region has a special complexity. Ultrasonography is a scanning technique, which has been successfully used to identify and measure the cervical muscle dimensions. The purpose of this study was to detect with the use of real-time ultrasonography the dimensional changes of the human semispinalis capitis muscle (SECM) during isometric cervical extension. Six junior ice hockey players took part in the study. We simultaneously measured the values of estimates, such as breadth or anteroposterior dimension (APD) and width or lateral dimension (LD), of the SECM cross-sectional area during isometric cervical extension at different maximum voluntary contraction (MVC) percent levels (0%, 20%, 40%, 60%, 80%, and 100%). The result of multiplication of the linear dimensions (APD x LD), considered as the size of the SECM, increased (p < 0.05) with increasing the level of the cervical extension force. The correlation between muscle size and extension force of 10...
Journal of back and musculoskeletal rehabilitation, 2012
This study was designed to find out the relationship between the multiplied linear dimensions (ML... more This study was designed to find out the relationship between the multiplied linear dimensions (MLD) measurement and the cross-sectional area (CSA) measurement of the lumbar multifidus muscle. Sixty healthy female subjects participated in this study. The CSA of the lumbar multifidus muscle from L2 to L5 was bilaterally measured by tracing around the muscle margins with an on- screen cursor. The linear dimensions including lateral dimension (LD), anteroposterior dimension (APD) and MLD of the muscles were also calculated at the same levels of lumbar vertebrae. The linear regression between CSA and MLD for each vertebral level was significant (r=0.89 to 0.97, p<0.0001). In addition, there was significant correlation between CSA and APD (r=0.69 to 0.87, p<0.05). MLD method can be used to predict the CSA of the lumbar multifidus muscle. The method described for assessing the multifidus muscle is a potentially valuable, quick and easy way to evaluate muscle size at different levels ...
Journal of manipulative and physiological therapeutics, Jan 11, 2015
The purposes of this study were to (1) measure the thickness of cervical multifidus muscle (CMM) ... more The purposes of this study were to (1) measure the thickness of cervical multifidus muscle (CMM) in different maximal voluntary contraction percentages of isometric contraction of shoulder muscles, (2) evaluate the differences of the CMM thickness in different directions of the shoulder movement, and (3) compare the changes in the CMM thickness of participants with neck pain and also of healthy individuals. Twenty healthy men (age, 27.45 ± 4.37 years; height, 177 ± 4.66 cm; weight, 72.85 ± 6.46 kg) and 20 men with chronic mechanical neck pain (age, 28.90 ± 5.53 years; height, 176 ± 5.98 cm; weight, 73.15 ± 7.82 kg) participated in the study. Both the right and left CMM thicknesses were measured using an ultrasound device while participants performed isometric contraction of shoulder muscles in 6 movement directions. In both groups, an increment of CMM thickness followed as the increase of isometric force (P < .01).The increase of muscle thickness of healthy participants was subst...
Journal of Back and Musculoskeletal Rehabilitation, 2005
... a Physiotherapy Department, Rehabilitation Faculty, Semnan University of Medical Sciences, Se... more ... a Physiotherapy Department, Rehabilitation Faculty, Semnan University of Medical Sciences, Semnan, Iran b Physiotherapy Department, Rehabilitation Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran Abstract. ...
Journal of Physical Therapy Science, 2016
[Purpose] The aim of this study was to determine the reliability of a newly designed dynamometric... more [Purpose] The aim of this study was to determine the reliability of a newly designed dynamometric device for use in frequent force producing/reproducing tasks on the knee joint. [Subjects and Methods] In this cross-sectional study (Development & Reliability), 30 young healthy males and females (age 23.4 ± 2.48 years) were selected among students of Tabriz University of Medical Sciences by simple randomized selection. The study instrument was designed to measure any isometric contraction force exerted by the knee joint flexor/extensor muscles, known as the ipsilateral and contralateral methods. Participant knees were fixed in 60° flexion, and each participant completed the entire set of measurements twice, 72 hours apart. [Results] The findings showed a good intraclass correlation coefficient of 0.73 to 0.81 for all muscle groups. The standard error of measurement and smallest detectable difference for flexor muscle groups were 0.37 and 1.02, respectively, while the values increased to standard error of measurement=0.38 and smallest detectable difference=1.05 for extensor muscle groups. [Conclusion] The device designed could quantify the forces producing/reproducing tasks on the knee joint with a high rate of reliability, and can probably be applied for outcome measurements in proprioceptive assessment of the knee joint.
CRANIO®, 2016
Craniocervical (CC) muscles control posture of the CC area. Muscle imbalance at this area induces... more Craniocervical (CC) muscles control posture of the CC area. Muscle imbalance at this area induces musculoskeletal disorders. The purpose of this study was to develop a device for measuring isometric force of CC flexor and extensor muscles and to evaluate its intra-rater reliability. Isometric force of CC flexor and extensor muscles was measured in 20 women by one examiner on two days with a custom-made device. The intra-class correlation coefficient (ICC), standard error of measurements (SEM), smallest detectable difference (SDD), and Pearson correlation coefficient were computed. The results of this study revealed that this device had excellent reliability (ICC: 0.98, SEM: 2.29 N, SDD: 6.36 N, Pearson correlation coefficient: 0.97 for CC flexor muscles and ICC: 0.97, SEM: 2.13 N, SDD: 5.91 N, Pearson correlation coefficient: 0.94 for CC extensor muscles). This new device can improve knowledge about the CC muscle and efficacy of treatments in patients with poor posture.
Journal of Gorgan University of Medical Sciences, Mar 1, 2010
Scand J Med Sci Sports, 2007
Neck muscle ultrasonography of male weight-lifter s, wrestlers and controls Rezasoltani A, Malkia... more Neck muscle ultrasonography of male weight-lifter s, wrestlers and controls Rezasoltani A, Malkia E, Vihko V. Neck muscle ultrasonography of male weight-lifters, wrestlers and controls. Scand J Med Sci Sports 1999: 9: 214-118. 0 Munksgaard. 1999 The purpose of this cross-sectional study was to evaluate the effect of different sport training regimens on the size of the neck semispinalis capitis muscle (SECM). The cross-sectional area (CSA) and the linear dimensions of the SECM were measured bilaterally by real-time ultrasonography. Ten young Finnish elite level weight-lifters. 8 freestyle wrestlers and 10 controls (all male) participated in the study. Muscle CSA was significantly larger in wrestlers than in weight-lifters or controls (P<O.OOl). There was no significant difference in size between the right and left SECM in any of the subject groups, but the variation between sides (smaller vs. larger) was significantly higher in wrestlers than weight-lifters (P<0.05). CSA correlated with the multiplied linear dimensions (r=0.80, P<O.OOO). Neck muscle: ultrasonography appeared to be a useful method in evaluating the differences between two groups of athletes.
Clin Rehabil, 1998
To examine the reliability of measurements of semispinalis capitis muscle (SECM) cross-sectional ... more To examine the reliability of measurements of semispinalis capitis muscle (SECM) cross-sectional area (CSA) in prone and sitting positions, and to compare the muscle size in these two positions. Semispinalis capitis CSA was measured twice a day on two successive days with a real-time ultrasound apparatus. Eighteen males (aged 19-34 years) and 28 females (aged 19-34 years) were studied for the reliability test. Seven males and 12 females were randomly selected to compare SECM size in sitting and prone positions. The intraclass correlation coefficient (ICC) for repeatability measurements was r = 0.98 for the two positions. The correlation of the CSA in sitting and in prone positions was r = 0.93 (p < 0.01). There were no significant differences between CSA, linear dimensions and shape ratio of SECM in the two positions. In this study SECM ultrasonography appeared to be an accurate method in both positions, and position as such had no significant effects on the SECM cross-sectional size. Such accuracy allows neck muscle evaluation in clinical diagnosis and in follow-up studies during neck rehabilitation programmes.
Rehabilitation Medicine, Feb 20, 2013
Cervical multifidus is considered as one of the most important neck stabilizers. Weakness and mus... more Cervical multifidus is considered as one of the most important neck stabilizers. Weakness and muscular atrophy of this muscle were seen in patients with chronic neck pain. Ultrasonographic imaging is a non-invasive and feasible technique that commonly used to record such changes and measure muscle dimensions. Therefore, the aim of this study was to evaluate the reliability of ultrasonographic measurement of cervical multifidus muscle's dimensions during isometric contraction of neck muscles. Materials and Method: Ten subjects (5 patients with chronic neck pain and 5 healthy subjects) were recruited in this study. Cervical multifidus muscle's dimensions were measured at the level of forth cervical vertebrae. Ultrasonographic measurement of cervical multifidus muscle at rest, 50% and 100% of maximal voluntary contraction (MVC) were performed by one examiner within 1 week interval. The dimensions of cervical multifidus muscle including cross-sectional area (CSA), anterior posterior dimension (APD), and lateral dimension (LD) were measured. Intraclass correlation coefficients (ICC), standard error of measurement (SEM) and minimal detectable change (MDC) were computed for data analysis. Results: The between days reliability of maximum strength of neck muscles and multifidus muscle dimensions at rest, 50% and 100% of MVC of neck muscles were good to excellent (ICC=0.75-0.99).
CRANIO®, 2016
The stability of the craniocervical (CC) area is provided by CC muscles. Muscle imbalance between... more The stability of the craniocervical (CC) area is provided by CC muscles. Muscle imbalance between forces of these muscles may lead to forward head posture (FHP). FHP is one of the most prevalent abnormal postures in patients with neck pain. The aim of the present study was to compare isometric force of the CC flexor and extensor muscles between women with and without FHP. Isometric force of the CC flexor and extensor muscles were measured by a custom-made device and compared between 70 women with and without FHP (35 in each group). No significant difference was observed between the two groups regarding isometric force of the CC flexor and extensor muscles, but the ratio of the isometric force of the CC muscles (flexor to extensor) revealed significant difference between the two groups, and it was greater in the control group compared with that in the FHP group. The ratio of isometric force of the CC muscles (flexor to extensor) may be a good indicator for assessment of patients with FHP. This ratio may also be valuable to follow the results of therapeutic intervention for these patients.
Modern Rehabilitation, May 15, 2013
1 ، رﺿﺎﺳﻠﻄﺎﻧﯽ اﺻﻐﺮ دﮐﺘﺮ 2 ﺳﺨﺎﯾﯽ دﮐﺘﺮﺳﯿﺪﯾﻌﻘﻮب ، 3 ﺧﻠﺨﺎﻟﯽ ﻣﯿﻨﻮ دﮐﺘﺮ ، 4 رﻫﻨﻤﺎ ﻟﯿ... more 1 ، رﺿﺎﺳﻠﻄﺎﻧﯽ اﺻﻐﺮ دﮐﺘﺮ 2 ﺳﺨﺎﯾﯽ دﮐﺘﺮﺳﯿﺪﯾﻌﻘﻮب ، 3 ﺧﻠﺨﺎﻟﯽ ﻣﯿﻨﻮ دﮐﺘﺮ ، 4 رﻫﻨﻤﺎ ﻟﯿﻼ ، 5 ﺑﻪ ﻣﺒﺘﻼ زﻧﺎن در ﮔﺮدن ﻓﯿﺪوس ﻣﻮﻟﺘﯽ ﻋﻀﻠﻪ اﺑﻌﺎد ﻗﺮﯾﻨﮕﯽ ﺑﺮرﺳﯽ ... ﻣ ﭘﺰﺷ ﻋﻠﻮم داﻧﺸﮕﺎه ـ ﺗﻮاﻧﺒﺨﺸﯽ داﻧﺸﮑﺪه ـ ﻧﻮﯾﻦ ﺗﻮاﻧﺒﺨﺸﯽ ﭘﮋوﻫﺸﯽ ﻋﻠﻤﯽ ﺠﻠﻪ دوره ﺗﻬﺮان ﮑﯽ 7 ﺷﻤﺎره 1 ﺑﻬﺎر 92
Manual Therapy, 2015
Altered pattern of muscle activity is commonly seen with chronic neck pain (CNP). However, limite... more Altered pattern of muscle activity is commonly seen with chronic neck pain (CNP). However, limited investigations have been done on dorsal neck muscles&amp;amp;amp;amp;amp;amp;amp;#39; activity pattern while performing upper limb tasks in patients with CNP. To investigate dorsal neck muscles&amp;amp;amp;amp;amp;amp;amp;#39; thickness changes during isometric contraction of shoulder muscles. Case-control study. This study investigated dorsal neck muscles&amp;amp;amp;amp;amp;amp;amp;#39; thickness changes during isometric contraction of shoulder muscles in 20 healthy participants (mean age 27 ± 4.37) and 17 patients with CNP (mean age 29 ± 5.50). Effects of isometric force of shoulder muscles on dorsal neck muscles&amp;amp;amp;amp;amp;amp;amp;#39; thickness changes were also evaluated. Significant muscle × group interaction was observed for the dorsal neck muscles thickness changes (p = 0.008) indicating different pattern of muscle activity in terms of changes in muscle thickness of two groups. Significant main effects of direction was observed (P = 0.003), with the abduction had the greatest impact on changing the dorsal neck muscles thickness. patients with CNP showed altered pattern of muscle thickness changes in comparison to healthy participants. Isometric abduction of shoulder muscles induced the greatest changes of dorsal neck muscles thickness among other force directions.
Journal of Research in Rehabilitation Sciences, Jul 10, 2013
Journal of Rehabilitation, Jun 15, 2011
Brazilian Journal of Physical Therapy, 2015
This study was conducted with the purpose of evaluating the inter-session reliability of new soft... more This study was conducted with the purpose of evaluating the inter-session reliability of new software to measure the diameters of the cervical multifidus muscle (CMM), both at rest and during isometric contractions of the shoulder abductors in subjects with neck pain and in healthy individuals. In the present study, the reliability of measuring the diameters of the CMM with the Sonosynch software was evaluated by using 24 participants, including 12 subjects with chronic neck pain and 12 healthy individuals. The anterior-posterior diameter (APD) and the lateral diameter (LD) of the CMM were measured in a resting state and then repeated during isometric contraction of the shoulder abductors. Measurements were taken on separate occasions 3 to 7 days apart in order to determine inter-session reliability. Intraclass correlation coefficient (ICC), standard error of measurement (SEM), and smallest detectable difference (SDD) were used to evaluate the relative and absolute reliability, respectively. The Sonosynch software has shown to be highly reliable in measuring the diameters of the CMM both in healthy subjects and in those with neck pain. The ICCs 95% CI for APD ranged from 0.84 to 0.94 in subjects with neck pain and from 0.86 to 0.94 in healthy subjects. For LD, the ICC 95% CI ranged from 0.64 to 0.95 in subjects with neck pain and from 0.82 to 0.92 in healthy subjects. Ultrasonographic measurement of the diameters of the CMM using Sonosynch has proved to be reliable especially for APD in healthy subjects as well as subjects with neck pain.
Journal of back and musculoskeletal rehabilitation, Jan 26, 2015
The effect of different exercise programs on cervical flexor muscles dimensions in patients with ... more The effect of different exercise programs on cervical flexor muscles dimensions in patients with chronic neck pain is yet to be demonstrated. The purpose of this study was to assess the effect of two exercise programs; craniocervical flexion (CCF) and cervical flexion (CF), on flexor muscles dimensions in patients with chronic neck pain. Following ethical approval, 60 patients were randomly assigned into either a CCF group or a CF group. Patients in the CCF group were given CCF exercises and those in the CF group received CF exercises. All patients received interventions for a period of ten weeks. Pain intensity and functional disability were assessed using numerical pain rate scale and neck disability index, respectively. Dimensions of longus colli (LC) and sternoclidomastoid (SCM) muscles were measured using ultrasonography (US). All measurements were taken before and after interventions. Following intervention, the CCF group demonstrated a significant increase in LC muscle dimens...
Neck muscle weakness and atrophy are two common causes of pain and disability among office worker... more Neck muscle weakness and atrophy are two common causes of pain and disability among office workers. The aim of this study was to compare the strength of the neck extensor and flexor muscles and the size of the semispinalis capitis muscle (SECM) in patients with chronic non-specific neck pain (CNNP) and healthy subjects. Twenty female office workers (10 patients with CNNP and 10 healthy subjects) participated in this study. The strength of the neck extensor and flexor muscles was measured by an isometric device and the SECM size was measured by ultrasonography. Neck muscle strength, size of the SECM and the ratios of neck strength to body weight, neck extensor strength to SECM size, SECM size to body weight and neck flexor to extensor strength were all significantly lower in patients compared to controls (P < 0.05). In conclusion, neck strength, the size of the SECM and the ratio of neck muscle strength to SECM size appear to be useful parameters in appraising patients with CNNP.
Journal of rehabilitation research and development
The anatomy of the human cervical region has a special complexity. Ultrasonography is a scanning ... more The anatomy of the human cervical region has a special complexity. Ultrasonography is a scanning technique, which has been successfully used to identify and measure the cervical muscle dimensions. The purpose of this study was to detect with the use of real-time ultrasonography the dimensional changes of the human semispinalis capitis muscle (SECM) during isometric cervical extension. Six junior ice hockey players took part in the study. We simultaneously measured the values of estimates, such as breadth or anteroposterior dimension (APD) and width or lateral dimension (LD), of the SECM cross-sectional area during isometric cervical extension at different maximum voluntary contraction (MVC) percent levels (0%, 20%, 40%, 60%, 80%, and 100%). The result of multiplication of the linear dimensions (APD x LD), considered as the size of the SECM, increased (p < 0.05) with increasing the level of the cervical extension force. The correlation between muscle size and extension force of 10...
Journal of back and musculoskeletal rehabilitation, 2012
This study was designed to find out the relationship between the multiplied linear dimensions (ML... more This study was designed to find out the relationship between the multiplied linear dimensions (MLD) measurement and the cross-sectional area (CSA) measurement of the lumbar multifidus muscle. Sixty healthy female subjects participated in this study. The CSA of the lumbar multifidus muscle from L2 to L5 was bilaterally measured by tracing around the muscle margins with an on- screen cursor. The linear dimensions including lateral dimension (LD), anteroposterior dimension (APD) and MLD of the muscles were also calculated at the same levels of lumbar vertebrae. The linear regression between CSA and MLD for each vertebral level was significant (r=0.89 to 0.97, p<0.0001). In addition, there was significant correlation between CSA and APD (r=0.69 to 0.87, p<0.05). MLD method can be used to predict the CSA of the lumbar multifidus muscle. The method described for assessing the multifidus muscle is a potentially valuable, quick and easy way to evaluate muscle size at different levels ...
Journal of manipulative and physiological therapeutics, Jan 11, 2015
The purposes of this study were to (1) measure the thickness of cervical multifidus muscle (CMM) ... more The purposes of this study were to (1) measure the thickness of cervical multifidus muscle (CMM) in different maximal voluntary contraction percentages of isometric contraction of shoulder muscles, (2) evaluate the differences of the CMM thickness in different directions of the shoulder movement, and (3) compare the changes in the CMM thickness of participants with neck pain and also of healthy individuals. Twenty healthy men (age, 27.45 ± 4.37 years; height, 177 ± 4.66 cm; weight, 72.85 ± 6.46 kg) and 20 men with chronic mechanical neck pain (age, 28.90 ± 5.53 years; height, 176 ± 5.98 cm; weight, 73.15 ± 7.82 kg) participated in the study. Both the right and left CMM thicknesses were measured using an ultrasound device while participants performed isometric contraction of shoulder muscles in 6 movement directions. In both groups, an increment of CMM thickness followed as the increase of isometric force (P < .01).The increase of muscle thickness of healthy participants was subst...