• Title, Summary, Keyword: Biceps brachii

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Analysis of Ultrasonography on Biceps Brachii Muscle of Hemiplegic Patient (만성 편마비 환자의 상완이두근에 대한 초음파 영상구조의 특성 분석)

  • Kim, Hyun-Jin;Yang, Ga-Ae;Kim, Su-Hyon;Kim, Tae-Youl
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.7 no.1
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    • pp.11-15
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    • 2009
  • Purpose : This study aims to comparison of ultrasonography on both sides of biceps brachii muscle of hemiplegic patient. Methods : The biceps brachii muscle of fifteen subjects (5 male, 10 female) with stroke were scanned with ultrasonography at the muscle belly at rest at elbow angles of 90 deg. The echogenicity (density, white area index; WAI, anatomic cross-sectional area; ACSA, volume) of ultrasonography was examined. Results : In the biceps brachii muscle, there were significant differences of density, WAI, ACSA, and volume between affected side and non-affected side. biceps brachii muscle, echogenicity (density, WAI) of the affected side was higher than non-affected side. biceps brachii muscle, echogenicity (ACSA, volume) of the non-affected side was higher than affected side. Conclusion : This study showed that change of skeletal muscle architecture properties occurred biceps brachii muscle of the affected side muscle of hemiplegic patient.

Effect of Functional Pressure Garments on EMG Response of the Agonist during the Resistance Exercise of the Wrist and Elbow Joint

  • Kim, Ki Hong;Kim, Byung Kwan;Jeong, Hwan Jong
    • International Journal of Internet, Broadcasting and Communication
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    • v.12 no.1
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    • pp.81-89
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    • 2020
  • The purpose of this study is to investigation the effects of functional compression clothing on muscle function by comparing the iEMG response of muscle during exercise according to the wearing of taping applied functional clothing. Six men in their twenties in Chungcheongnam-do were selected for the study. Resistance exercise was performed by cross-distributing the conditions of wearing and not wearing functional clothing. Resistance exercises for iEMG measurements are biceps curl, wrist curl, reverse wrist curl, kickback and push-up. iEMG measurement muscles were the biceps brachii, triceps brachii, extensor carpi ulnaris, flexor carpi radialis. During biceps curl exercise, the iEMG of triceps brachii, biceps brachii wearing condition was lower than the non-wearing condition. During kickback exercise, the iEMG of triceps brachii, extensor carpi ulnaris wearing condition was lower than the non-wearing condition. During reverse wrist curl exercise, the iEMG of extensor carpi ulnaris wearing condition was lower than the non-wearing condition. During wrist curl exercise, the iEMG of flexsor biceps brachii, carpi radialis wearing condition was lower than the non-wearing condition. During push-up exercise, the iEMG of triceps flexsor biceps brachii, carpi radialis, brachii, biceps brachii non-wearing condition was lower than the wearing condition.

The Comparison Effects between Electrical Stimulation Therapy and Isometric Exercise on Improvement of Biceps brachii Muscle Strength (EST와 등척성 운동이 상완이두근의 근력증진에 미치는 효과에 관한 비교연구)

  • Kim, Jeong-Seon;Park, Ji-Whan
    • The Journal of Korean of Orthopedic Manual Physical Therapy
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    • v.16 no.1
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    • pp.20-25
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    • 2010
  • Purpose : To compare the effect between isometric exercise group(n=10) and electrical stimulation therapy group(n=10) on improvement of biceps brachii muscle strength. Methods : The experiments were performed for 4 weeks and three times a week. The participants of this study were 20 students(10 male, 10 female) who had not any medical problems. We divided into the two groups. One group received isometric exercise and the other group received EST for 4 weeks. The biceps brachii muscle strength was evaluated by making use of the KIN-COM. Results : The results were as follows 1. One group which received isometric exercise increased 36% for biceps brachii muscle strength. 2.The other group which received EST increased 54% for biceps brachii muscle strength. Conclusion : The results of this study showed that EST group was more effective than isometric exercise group.

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A Comparison of EMG Amplitude between the Biceps Brachii and the Quadriceps Femoris Muscles in Static Exertions (상완이두근과 대퇴사두근의 등장성 수축에 대한 EMG Amplitude의 비교${\cdot}$분석)

  • Lee, Koo-Hyung;Lee, Nyun-Woo
    • Journal of the military operations research society of Korea
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    • v.8 no.1
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    • pp.77-98
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    • 1982
  • Experiments have been performed for estimating the individual muscle capabilities of the biceps brachii and the quadriceps femoris muscle. The surface EMG has been recorded on the bellies of the biceps brachii and the quadriceps femoris muscle during isometric contractions at $50\%,\;75\%,\;and\;100\%$ MVC. The rectified EMG amplitudes of the maximum voluntary contraction (MVC) were in the range of $2.8\~3.0\;mV\;and\;6.9\~7.2\;mV$ the biceps brachii and the quadriceps femoris, respectively. In the biceps brachii, Type S motor units were recruited in the range of $41\~49\%$ MVC; and Type F motor units were recruited in the range of $51\~59\%$ MVC, In the quadriceps femoris, Type S, Type SF, and Type F motor units were recruited in the ranges of $31\~38\%,\;33\~48\%$, and $21\~29\%$ MVC respectively.

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A Correlation Study Using the Sonogram Between the Muscle Strength and the Diameter of Biceps Brachii Muscle (윗팔두갈래근의 근력과 근육직경 간의 상관성에 대한 초음파 영상 연구)

  • Kim, Jeong-Seon;Park, Ji-Whan
    • The Journal of Korean of Orthopedic Manual Physical Therapy
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    • v.17 no.1
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    • pp.9-14
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    • 2011
  • Background: The purpose of our experimental study, we want to know a correlation study using the sonogram between the muscle strength and the diameter of Biceps brachii muscle by gender. So we set to hypothesis that Biceps brachii contracted maximally would be a diameter of the muscles increased according to the muscle strength will be increased. Methods: In this study, we measured the muscle strength of biceps brachii on contracting its maximum using the Biodex and the diameter of the muscles using Myo-Lab (25Gold). We experimented 30 subjects of twenty-aged men and women. The subjects is comprised of a persons who has not external injuries and pain of elbow joint, no mobility limitation of ROM, no experiences of surgery in past history. Result: We found that the men have a highly correlation between maximum strength and the diameter of the muscles more than women (p<.05). Conclusion: The results of our experimental study between the muscle diameter and the muscle strength to biceps brachii on relaxation and contraction is a statistically significant relation (r=.394), especially in rather men then women (p<.05). So this results would be based data for further clinical muscle efficiency application in physical therapy field.

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The Effect of the Change in Neck Position on Muscle Activity during Arm Flexion Exercise

  • Cho, Sung-Hak;Kim, Chi-Hwan
    • Journal of the Korean Society of Physical Medicine
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    • v.16 no.1
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    • pp.9-16
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    • 2021
  • PURPOSE: This study was to investigate the effect of applying neck flexion during elbow flexion exercise on muscle activity of the biceps brachii, the anterior deltoid and the sternocleidomastoid (SCM). METHODS: Twenty healthy adults participated in this study. The subjects measured %MVIC (Maximal volumetric control) and collected the maximum electromyography (EMG) values in the biceps brachii, anterior deltoid, SCM. The first action was to sit in a sitting position with the eyes facing front and maintained the weight of each section by performing elbow flexion using a tension gauge. The second action was to sit in a sitting position with the head down and maintained the weight of each section by performing elbow flexion using a tension gauge. Paired T-test was used for comparison of the before-and-after neck flexion to analyze the muscle activity of the Biceps brachii of next flexion and extension, the SCM, and the Anterior deltoid during elbow flexion exercise. The Repeated measured ANOVA was used for comparing %MVIC in each muscle. The significance level (?) was set at .05. RESULTS: Neck flexion during elbow flexion increased the muscle activity of the Biceps brachii and Anterior Deltoid muscle in the maximal muscle strength 50 ~ 60%, 70 ~ 80% and decreased the muscle activity of the SCM (p < .05). CONCLUSION: The applic has been confirmed to reduce the mobilization of the SCM and increase the mobilization of the Biceps brachii and Anterior Deltoid to increase the mobilization. Therefore, it seems effective to apply neck flexion when elbow flexion exercise.

Intrasubstance Rupture of Biceps Brachii Diagnosed by Ultrasonography: 2 Case Reports (초음파로 진단한 상완이두근의 근육내 파열: 2례보고)

  • Ryu, Jae-Man
    • The Journal of Korean Orthopaedic Ultrasound Society
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    • v.6 no.2
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    • pp.65-69
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    • 2013
  • Rupture of biceps brchii is seen mainly in tendinous portion and intrasubstance rupture is rare. Author experienced 2 cases of intrasubstance rupture of biceps brachii diagnosed by sonographic examination which showed satisfactory result by conservative treatment.

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Relationships Between Rounded Shoulder Posture and Biceps Brachii Muscle Length, Elbow Joint Angle, Pectoralis Muscle Length, Humeral Head Anterior Translation, and Glenohumeral Range of Motion

  • Choi, Sil-ah;Cynn, Heon-seock;Lee, Ji-hyun;Kim, Da-eun;Shin, A-reum
    • Physical Therapy Korea
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    • v.24 no.2
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    • pp.48-57
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    • 2017
  • Background: Rounded shoulder posture (RSP), a postural abnormality, might cause shoulder pain and pathologic conditions. Although most previous research has investigated RSP focusing on the proximal structures of the shoulder, such as the scapula and pectoralis muscles, the relationship between RSP and anterior distal structures of the upper extremity, such as the biceps brachii muscle and elbow joint, is not clearly understood. Objects: This study aimed to investigate the correlations between RSP and the biceps brachii length, elbow joint angle (EJA), pectoralis minor length, general pectoralis major length, humeral head anterior translation (HHAT), glenohumeral internal rotation (IR), external rotation (ER), and horizontal adduction (HAD). Methods: Twelve subjects with RSP (6 male, 6 female) were recruited. All subjects fulfilled the RSP criteria indicated by a distance ${\geq}2.5cm$ from the posterior aspect of the acromion to the table in the supine position. The examiner measured each of the following parameters twice: RSP, biceps brachii length, EJA, pectoralis minor length, pectoralis major length, HHAT, glenohumeral IR, ER, and HAD. Pearson's correlation coefficient(r) was used to assess the correlation between RSP and all the variables. Results: There was a significant moderate positive correlation between RSP and biceps brachii length (r=.55, p=.032), moderate negative correlation between RSP and pectoralis minor length (r=-.62, p=.015), and moderate positive correlation between RSP and HHAT (r=.53, p=.038). Conclusion: The biceps brachii length, pectoralis minor length, and HHAT could be used to evaluate patients with RSP. Better understanding of the correlation between these factors and RSP could help in the development of effective methods to treat patients with this condition in clinical management.

Arthroscopic Treatment of the Intratendinous Ganglion of the Long Head of Biceps Brachii - A Case Report

  • Wang, Jin-Man;Yi, Woojin;Son, Jin-Hyoung;Im, Jung-Ju
    • Clinics in Shoulder and Elbow
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    • v.17 no.4
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    • pp.194-196
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    • 2014
  • A ganglion is a benign cystic mass, commonly found around a joint or tendon sheath. It frequently occurs at the wrist, foot, ankle, and knee. Intratendinous ganglion has been rarely reported, and intratendinous ganglion of the long head of biceps brachii is extremely rare. According to our literature review, this is the third case of intratendinous ganglion of the long head of biceps brachii, and the first case of arthroscopic treatment. Therefore we report a case of an arthroscopic treatement for an intratendinous ganglion of the long head of biceps brachii.

Intra-Rater and Inter-Rater Reliability of the Myotonometer in the Assessment of Biceps Brachii and Quadriceps (근긴장도검사기(Myotonometer)를 이용한 상완이두근과 대퇴사두근 검사의 신뢰도 연구)

  • Kim, Suhn-Yeop
    • Physical Therapy Korea
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    • v.14 no.2
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    • pp.29-36
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    • 2007
  • Muscle tone (stiffness/hardness) or muscle compliance changes during muscle contraction. The purposes of this study were to assess the intrarater and interrater reliabilities of the Myotonometer$^{(R)}$, electronic device that quantifies muscle tone. Two raters used the Myotonometer to assess the right bicep brachia and quadriceps muscles of 30 voluntary persons without any orthopedic or neurological problems (age range, 18~21 yrs). Muscles were measured in a relaxed state and during brief sustained voluntary maximal isometric contraction. Intrarater correlation coefficients were calculated for each muscle and for each condition (relaxed and contracted). Intrarater reliabilities (intraclass correlation coefficients, ICCs) ranged from .778 to .954, relaxed, biceps brachia), .926 to .963 (contracted, biceps brachia), .935 to .990 (relaxed, quadriceps) and .679 to .952(contracted, quadriceps). Interrater reliabilities ranged from .652 to .790 (relaxed, biceps brachii), .813 to .907 (contracted, biceps brachii), .831 to .950 (relaxed, quadriceps) and .849 to .937 (contracted, quadriceps). Myotonometer measurements had high to very high intrarater and interrater reliability for measurements of the biceps brachia and quadriceps muscles.

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