scholarly journals Modulation in Elastic Properties of Upper Trapezius with Varying Neck Angle

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Jun Zhang ◽  
Jiafeng Yu ◽  
Chunlong Liu ◽  
Chunzhi Tang ◽  
Zhijie Zhang
Keyword(s):  
Elastic Modulus ◽  
Intraclass Correlation ◽  
Trapezius Muscle ◽  
Shear Wave Elastography ◽  
Muscle Stiffness ◽  
Minimal Detectable Change ◽  
Shear Elastic Modulus ◽  
Upper Trapezius ◽  
Significant Difference ◽  
Upper Trapezius Muscle

Background. Neck and shoulder complaints caused by poor posture may influence upper trapezius stiffness. The relationship between the shear elastic modulus of the upper trapezius and cervical flexion angles is unknown. Therefore, it is essential to assess upper trapezius stiffness during cervical flexion. The objectives of this study were to (1) determine the intra- and interoperator reliabilities of evaluating upper trapezius stiffness and calculate the minimal detectable change (MDC); (2) examine the elastic modulus alterations of the upper trapezius during cervical flexion; and (3) explore the difference of upper trapezius stiffness between the dominant and nondominant sides. Methods. Twenty healthy male participants were recruited in this study. The shear modulus of the upper trapezius was evaluated by two independent investigators using shear wave elastography (SWE) during cervical flexion at 0° and 50°. Findings. The intraoperator (intraclass correlation coefficient ICC=0.85–0.86) and interoperator (ICC=0.94–0.98) reliabilities for measuring the shear elastic modulus of the upper trapezius during the cervical flexion ranged from good to excellent. An increase of 35.58% in upper trapezius stiffness was found at 0° to 50° of cervical flexion, and the MDC was 7.04 kPa. In addition, a significant difference was obtained in the elastic modulus of the upper trapezius muscle between the dominant and nondominant sides (P<0.05). Conclusions. Our findings revealed that SWE could quantify the elastic modulus of the upper trapezius and monitor its changes. Therefore, further studies are required to delineate the modulation in upper trapezius muscle stiffness among subjects with neck and shoulder pain.

scholarly journals Eccentric Exercise Reduces Upper Trapezius Muscle Stiffness Assessed by Shear Wave Elastography and Myotonometry

2020 ◽  
Vol 8 ◽  
Author(s):  
Aleksandra Kisilewicz ◽  
Pascal Madeleine ◽  
Zofia Ignasiak ◽  
Bogdan Ciszek ◽  
Adam Kawczynski ◽  
...  
Keyword(s):  
Shear Wave ◽  
Eccentric Exercise ◽  
Trapezius Muscle ◽  
Shear Wave Elastography ◽  
Muscle Stiffness ◽  
Upper Trapezius ◽  
Upper Trapezius Muscle

scholarly journals Shear wave elastography of the upper trapezius muscle in patient with chronic neck pain: is there a correlation between elastic modulus and intensity of pain?

2020 ◽  
Author(s):  
Junsheng Ge ◽  
Jun Zhang ◽  
Zhi Jie Zhang
Keyword(s):  
Neck Pain ◽  
Shear Wave ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Trapezius Muscle ◽  
Shear Wave Elastography ◽  
Chronic Neck Pain ◽  
Intraclass Correlation Coefficients ◽  
Upper Trapezius ◽  
Upper Trapezius Muscle

Abstract Background Chronic neck pain is a common discomfort and the alteration of elasticity of the upper trapezius in pathological conditions is unknown. Therefore, the aims of this investigation were (1) to determine the intra- and inter-operator reliability of evaluating the elasticity of the upper trapezius by shear wave elastography in individuals with chronic neck pain; (2) to examine the alteration for the upper trapezius during cervical flexion; and (3) to explore the correlation between elasticity of the upper trapezius and pain intensity. Methods Thirty individuals with chronic neck pain were recruited for this study. Alteration in elasticity of upper trapezius was evaluated by shear wave elastography during cervical flexion at 0°and 50°. Results The intra- and inter-operator reliability was excellent with the intraclass correlation coefficients ranging from 0.92 to 0.98. An increase of 30.80% was shown in the elasticity of the upper trapezius during cervical flexion of the painful side. In addition, there was a significant positive correlation between elasticity of the upper trapezius and intensity of pain (rho=0.647, P <0.05). Conclusion Shear wave elastography is a feasible tool for assessing changes of elasticity in muscles, and the findings in this investigation might be a good reference of evaluating upper trapezius elastic alterations in chronic neck pain.

Effect of Rest Duration Between Static Stretching on Passive Stiffness of Medial Gastrocnemius Muscle In Vivo

2020 ◽  
Vol 29 (5) ◽  
pp. 578-582
Author(s):  
Masatoshi Nakamura ◽  
Shigeru Sato ◽  
Ryosuke Kiyono ◽  
Nobushige Takahashi ◽  
Tomoichi Yoshida
Keyword(s):  
Elastic Modulus ◽  
Shear Wave ◽  
Repeated Measures ◽  
Shear Wave Elastography ◽  
Muscle Stiffness ◽  
Medial Gastrocnemius ◽  
Static Stretching ◽  
Shear Elastic Modulus ◽  
Before And After

Context: In clinical and sports settings, static stretching (SS) is usually performed to increase range of motion (ROM) and decrease passive muscle stiffness. Recently, the shear elastic modulus was measured by ultrasonic shear wave elastography as an index of muscle stiffness. Previous studies reported that the shear elastic modulus measured by ultrasound shear wave elastography decreased after SS, and the effects of SS on shear elastic modulus were likely affected by rest duration between sets of SS. Objective: To investigate the acute effects of SS with different rest durations on ROM and shear elastic modulus of gastrocnemius and to clarify whether the rest duration between sets of SS decreases the shear elastic modulus. Design: A randomized, repeated-measures experimental design. Setting: University laboratory. Participants: Sixteen healthy males volunteered to participate in the study (age 21.3 [0.8] y; height 171.8 [5.1] cm; weight 63.1 [4.5] kg). Main Outcome Measures: Each participant underwent 3 different rest interval durations during SS (ie, long rest duration: 90 s; normal rest duration: 30 s; and short rest duration: 10 s). This SS technique was repeated 10 times, thus lasting a total of 300 seconds with different rest durations in each protocol. The dorsiflexion ROM and shear elastic modulus were measured before and after SS. Results: Our results revealed that dorsiflexion ROM and shear elastic modulus were changed after 300-second SS; however, no effects of the rest duration between sets of SS were observed. Conclusions: In terms of decreasing the shear elastic modulus, clinicians and coaches should not focus on the rest duration when SS intervention is performed.

scholarly journals THE INTEGRATED NEUROMUSCULAR INHIBITION TECHNIQUE IS MORE EFFECTIVE THAN CONTRACT RELAX STRETCHING TO ULTRASOUND MODALITY IN INCREASING NECK RANGE OF MOTION OF MYOFASCIAL SYNDROME IN UPPER TRAPEZIUS MUSCLE

2018 ◽  
Vol 6 (2) ◽  
pp. 26
Author(s):  
Putu Ayu Sita Saraswati ◽  
Ni Komang Juni Antari ◽  
Anak Agung Gede Angga Puspa Negara
Keyword(s):  
Myofascial Pain ◽  
Trapezius Muscle ◽  
Pain Syndrome ◽  
Myofascial Pain Syndrome ◽  
Trigger Points ◽  
Upper Trapezius ◽  
Significant Difference ◽  
Upper Trapezius Muscle ◽  
Neck Disability ◽  
Inhibition Technique

ABSTRACT``Myofascial pain syndrome in upper trapezius muscle is a muscle pain that implicated by one or somemyofascial trigger points in upper trapezius muscle. Working with static position in long time stimulating the presence ofmyofascial trigger points that causing pain and movement limitation of the neck that stimulate neck disability. Physicaltherapy’s intervention for reducing pain in this case could be integrated neuromuscular inhibition technique or contractrelax stretching combined with ultrasound modality. Purpose: to compare the both interventions in reducing neckdisability of myofascial pain syndrome in upper trapezius muscle. Method: this was an experimental study withRandomized Pre and Post Test Group Design. Samples were divided into 2 treatment group that consist 12 samplesfor each group. The first group treated with integrated neuromuscular inhibition technique with ultrasound while thesecond group treated with contract relaxes stretching with ultrasound. The data was collected by measuring neck rangeof motion using goniometer at the time before and after treatment. Result: the 1st group showed that the Neck ROMincrease 5.083±1.0840 (p<0.001) and the 2nd group showed that the Neck ROM increase 3.333±0.7780(p<0.001). Itmeans there were significant effect of each treatment in both groups. The results of independent t-test showed p<0.001,so that there was significant difference of increased Neck ROM between these groups. The result of independent t-testshowed p value 0.001, so there was significant difference between two groups at increasing neck ROM. Conclusion:combination integrated neuromuscular inhibition technique is more effective than contract relax stretching to ultrasoundmodality in increasing neck range of motion of myofascial syndrome in upper trapezius muscle.Keywords: myofascial, neck disability, trapezius, INIT, ultrasound, stretching

scholarly journals THE POSITIONAL RELEASE TECHNIQUE AND INFRARED INTERVENTION HAS NO SIGNIFICANT DIFFERENCE AS CONTRACT RELAX STRETCHING AND INFRARED INTERVENTION TO REDUCE PAIN IN HEADACHE DUE TO UPPER TRAPEZIUS MUSCLE TENSION ON EMPLOYEES

2018 ◽  
Vol 6 (2) ◽  
pp. 37
Author(s):  
Made Kristira Yanti ◽  
Ni Luh Nopi Andayani ◽  
I Putu Adiartha Griadhi
Keyword(s):  
Muscle Tension ◽  
Test Group ◽  
Trapezius Muscle ◽  
T Test ◽  
Upper Trapezius ◽  
Release Technique ◽  
Significant Difference ◽  
Upper Trapezius Muscle ◽  
Group 2 ◽  
Group 1

ABSTRACTHeadache can be caused by increased tension in upper trapezius muscle. This headache is characterized bytrigger point and upper trapezius muscle tautband. The purpose of this study was to compare the positional releasetechnique and infrared interventions with contract relax stretching and infrared on the reduction of headache due toupper trapezius muscle tension. This study was experimental with pre and post-test group design designs of 24 peopledivided into two groups. Group 1 received positional release technique and infrared, while Group 2 received contractrelax stretching and infrared. The result of data analysis with paired sample t-test in Group 1 showed the average 2,242± 0,329 and p = 0,001, while Group 2 showed the average 2,225 ± 0,201 and p = 0,001. From the results of the analysisshowed in each group there is a significant reduction of pain. Based on independent samples test t-test between groups1 and 2 obtained p value = 0.882 (p> 0.05). It can be concluded that the positional release technique and infraredintervention has no significant difference as contract relax stretching and infrared to decreased headache due to uppertrapezius muscle tension.Keywords: Headache, upper trapezius muscle, positional release technique, contract relax stretching, infrared, VAS

scholarly journals The Associations between Rapid Strength Development and Muscle Stiffness in Older Population

Healthcare ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 80
Author(s):  
Masatoshi Nakamura ◽  
Ryosuke Kiyono ◽  
Shigeru Sato ◽  
Kaoru Yahata ◽  
Taizan Fukaya ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Gastrocnemius Muscle ◽  
Shear Wave Elastography ◽  
Muscle Stiffness ◽  
Rate Of Force Development ◽  
Medial Gastrocnemius ◽  
Plantar Flexors ◽  
Force Development ◽  
Shear Elastic Modulus ◽  
Medial Gastrocnemius Muscle

Background: Previous studies suggest that the capacity for rapid force production of ankle plantar flexors is essential for the prevention of falls in the elderly. In healthy young adults, there were significant associations between rate of force development and muscle stiffness measured by shear wave elastography. However, there has been no study investigating the association of rate of force development with shear elastic modulus in older adults. Methods: The muscle strength and shear elastic modulus of the medial gastrocnemius muscle in both legs were measured in 17 elderly men and 10 elderly women (mean ± SD; 70.7 ± 4.1 years; 160.6 ± 8.0 cm; 58.7 ± 9.5 kg). We investigated the rate of force development of plantar flexors and shear elastic modulus of medial gastrocnemius muscle using by shear wave elastography. Results: Our results showed that there were no significant associations between normalized rate of force development and shear elastic modulus of medial gastrocnemius muscle. Conclusion: This suggests that the capacity of rapid force production could be related not to muscle stiffness of the medial gastrocnemius muscle, but to neuromuscular function in older individuals.

scholarly journals The Comparison of Different Stretching Intensities on the Range of Motion and Muscle Stiffness of the Quadriceps Muscles

2021 ◽  
Vol 11 ◽  
Author(s):  
Masatoshi Nakamura ◽  
Shigeru Sato ◽  
Yuta Murakami ◽  
Ryosuke Kiyono ◽  
Kaoru Yahata ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Range Of Motion ◽  
Knee Flexion ◽  
Shear Wave Elastography ◽  
Rectus Femoris ◽  
Quadriceps Muscle ◽  
Muscle Stiffness ◽  
Static Stretching ◽  
Muscle Strain ◽  
Shear Elastic Modulus

Muscle strain is one of the most frequent sports injuries, having the rectus femoris (RF) muscle as the reported preferred site of quadriceps muscle strain. The decrease muscle stiffness could be an effective RF muscle strain prevention. In recent studies, a high-intensity static stretching intervention decreased passive stiffness, though no study has investigated on the effect of the different static stretching intervention intensities on quadriceps muscle stiffness. The purpose of this study was to investigate the three different quadriceps muscle stiffness intensities (120 vs. 100 vs. 80%). Eighteen healthy, sedentary male volunteers participated in the study and randomly performed three intensities. The static stretching intervention was performed in knee flexion with 30° hip extension. Three 60-second stretching intervention with a 30-second interval were performed at each stretching intensity. We measured knee flexion range of motion and shear elastic modulus of the RF muscle used by ultrasonic shear-wave elastography before and after the static stretching intervention. Our results showed that the knee flexion range of motion was increased after 100% (p &lt; 0.01) and 120% intensities (p &lt; 0.01) static stretching intervention, not in 80% intensity (p = 0.853). In addition, our results showed that the shear elastic modulus of the RF muscle was decreased only after 100% intensity static stretching intervention (p &lt; 0.01), not after 80% (p = 0.365), and 120% intensities (p = 0.743). To prevent the quadriceps muscle strain, especially the RF muscle, 100%, not 120% (high) and 80% (low), intensity stretching could be beneficial in sports setting application.

scholarly journals Is Infrared Thermography Reliable to Assess Pain in the Trapezius Muscle Region?

2021 ◽  
Vol 14 (1) ◽  
pp. 25-29
Author(s):  
Talita Leite dos Santos Moraes ◽  
Luma Soares Lustosa ◽  
Larissa Moura Santos Ramos ◽  
Sabrina Mondadori Boaretto ◽  
Dihogo Gama de Matos ◽  
...  
Keyword(s):  
Skin Temperature ◽  
Infrared Thermography ◽  
Intraclass Correlation ◽  
Trapezius Muscle ◽  
Camera Model ◽  
Upper Trapezius ◽  
Muscle Region ◽  
Upper Trapezius Muscle ◽  
Examiner Agreement ◽  
Skin Temperatures

Objective: The aim of this study was to evaluate the inter- and intra-examiner reliability of infrared thermography (IT) in skin temperature analysis of people with pain complaints in the upper trapezius muscle. Methods: A total of 82 subjects (24.8 ± 6.9 years; 63.8 ± 13.1 kg) of both genders who had moderate (VAS-3) or severe pain in the upper trapezius muscle were evaluated. Skin temperatures of four areas (ROIs) were analyzed by IT using a FLIR camera (model T640SC - Sweden). Each evaluator performed two area analyses at different times. Results: The evaluation of the four areas indicated a very strong overall intraclass correlation coefficient (ICC) for both intra-examiner (Examiner 1: ICC = 0.936; 95% CI = 0.905–0.959; P < 0.001; Examiner 2: ICC = 0.979; 95% CI = 0.968–0.987; P < 0.001) and inter-examiner (Measurement 1: ICC = 0.933; 95% CI = 0.902–0.958; P < 0.001; Measurement 2: ICC = 0.979; 95% CI = 0.968–0.987; P < 0.001). The ICC was regular on ROI 3 in the measurement 1 inter-exam test, and the ROI 1, ROI 2, and ROI 4 values were strong; all points were very strong in measurement 2. The ICC was rated from strong to very strong for both examiners in the intra-examiner test at all points. Conclusion: IT was reproducible in measuring the upper trapezius muscle skin temperature, and the intra and inter-examiner agreement levels can be used as a reliable tool in clinical practice.

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