• 제목/요약/키워드: shoulder extension position

검색결과 38건 처리시간 0.023초

푸시업플러스(Push-up plus) 운동 시 견갑골 익상 유무에 따른 어깨안정근의 근활성도 비교 (A Comparison of the Shoulder Stabilizer Muscle Activities During Push-up Plus Between Persons With and Without Winging Scapular)

  • 박준상;전혜선;권오윤
    • 한국전문물리치료학회지
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    • 제14권2호
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    • pp.44-52
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    • 2007
  • This study was carried out to compare the muscle activities of the shoulder stabilizers between persons with and without winging scapular during push-up plus exercise (adds the scapular protraction to the general push-up exercise). For this study, eleven males with winging scapular and eleven healthy males were recruited. Surface electromyographic (EMG) activity was recorded from the serratus anterior, upper trapezius, lower trapezius, infraspinatus, and pectoralis major while the subjects performed the push-up plus. Each push-up plus was subdivided into three phases according to the elbow position which was measured using the 3-D motion analysis system: elbow flexion (EF), elbow extension (EE), and shoulder protraction phases (SP). Two-way repeated measure ANOVA (phase ${\times}$ group) were used for statistical analysis. There was significant phase by group interaction only on the EMG composition ratio of the serratus anterior (p>.05). The EMG composition ratio of the serratus anterior was significantly higher in SP than in either EF or EE however, it was not different between winging scapular and normal groups. For both groups, the EMG composition ratio of upper trapezius, lower trapezius, and pectoralis major was significantly different across the phases of push-up plus, but the infraspinatus EMG composition ratio was not. For both groups, in EF and EE phases, the EMG composition ratio of both pectoralis major and serratus anterior were relatively higher than that of other muscles. However, in both groups, the EMG composition ratio of the serratus anterior became much more predominant than that of the pectoralis major. In addition, infraspinatus activated greater than pectoralis major. These results showed that the push-up plus exercise is effective to selectively strengthen the serratus anterior for both individuals with and without winging scapular, but not equally effective for other shoulder stabilizers.

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The Effect of Wheelchair Propulsion on Carpal Tunnel Syndrome of Wrist Joint

  • Kong, Jin-Yong;Kwon, Hyuk-Cheol;Chang, Ki-Yeon;Jeong, Dong-Hoon
    • 한국전문물리치료학회지
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    • 제11권4호
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    • pp.7-17
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    • 2004
  • Individuals who propel wheelchairs have a high prevalence of upper extremity injuries (i.e., carpal tunnel syndrome, elbow/shoulder tendonitis, impingement syndrome). Musculoskeletal injuries can result from overuse or incorrect use of manual wheelchairs, and can hinder rehabilitation efforts. To better understand the mechanisms of upper extremity injuries, this study investigates the motion of the wrist during wheelchair propulsion. This study also examines changes in the variables that occur with fatiguing wheelchair propulsion to determine how the time parameters of wheelchair propulsion and the state of fatigue influence the risk of injury. A two dimensional (2-D) analysis of wrist movement during the wheelchair stroke was performed. Twenty subjects propelled a wheelchair handrim on a motor-driven treadmill at two different velocities (50, 70 m/min). The results of this study were as follows; The difference in time parameters of wheelchair propulsion (cadence, cycle time, push time, recovery time, and PSP ratio) at two different velocities was statistically significant. The wrist kinematic characteristics had statistically significant differences at two different velocities, but wrist radial deviation and elbow flexion/extension had no statistically significant differences. There were statistically significant differences in relation to fatigue in the time parameter of wheelchair propulsion (70 m/min) between initial 1 minute and final 1 minute. The wrist kinematic characteristics between the initial 1 minute and final 1 minute in relation to fatigue had statistically significant differences but the wrist flexion-extension (50 m/min) had no statistically significant differences. According to the results, the risk of musculoskeletal injuries is increased by fatigue from wheelchair propulsion. To prevent musculoskeletal injuries, wheelchair users should train in a muscle endurance program and consider wearing a splinting/grove. Moreover, wheelchair users need education on propulsion posture, suitable joint position, and proper recovery patterns of propulsion.

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평행봉 Tichonkich 동작의 운동학적 분석 (Kinematical Analysis of Tichonkich Motion in Parallel Bars)

  • 박종훈;백진호
    • 한국운동역학회지
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    • 제15권3호
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    • pp.21-30
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    • 2005
  • The purpose of this study is helps to make full use for perfect performance by grasping the defects of Tichonkich motion performed by athlete CSM For this, the study analyzed kinematical variables through Tichonkich motions performed at the first selection competition(1st trial) and final selection competition(2nd trial) for the dispatch to the 28th Athens Olympic Games using the three-dimensional cinematographical method with a high-speed video camera, and obtained the following results. 1. During Tichonkich motion, the execution time of up swing and the right hand moving to the left bar was shorter in the 2nd trial than the 1st one, while the execution time of down swing, the support of the left bar and the right hand moving to the right bar was longer in the 2nd trial than the 1st trial. 2. The horizontal position of COG in the 2nd trial was -35cm in the 1st stage, 42cm in the 3rd stage and 29cm in the 4th stage, that is, it showed a great swing focused on the circular movement compared to the 1st trial, while the vertical position of COG was -59cm in the 2nd stage, that is, it showed a small swing focused on a up and down movement. Also the 5th stage vertical position was 98cm, and the 6th stage vertical position was 95cm in the 2nd trial which were higher than those of the 1st trial, so it has provided magnificence required in the modern gymnastics. 3. And it was indicated that the horizontal velocity at the down swing phase proceeded forward more rapidly in the 2nd trial than that in the 1st trial, and the reverse ascent made a rapid vertical rise lessening left and right velocity change. And in the 5th stage, the 2nd trial was kept very slower in horizontal, vertical and left and right velocity that in the 1st trial, so it reached a handstand with leisurely movement. 4. In the 2nd trial, shoulder joint of the 1st, 2nd, 3rd stages kept a larger angle than that in the 1st trial, that is, it made a great swing while in the 1st trial, it showed a swing movement dependent on kick movement by the flexion and extension of hip joint. Also in the 2nd trial, the body formed a vertical posture with both hands supporting the left bar and hip joint was kept larger as $198^{\circ}$ and $190^{\circ}$ in the 5th and 6th stage than that in the 1st trial, so it made a handstand with the body uprightly stretched out, and magnificent and stable movement.

초음파를 이용한 주관절 주위 척골 신경의 동적 형태학적 연구 (Dynamic Morphologic Study of the Ulnar Nerve Around the Elbow Using Ultrasonography)

  • 전인호;이성만;최진원;김풍택
    • Clinics in Shoulder and Elbow
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    • 제10권1호
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    • pp.99-105
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    • 2007
  • 목적: 정상인에 있어 주관절 주위 척골 신경에 대하여 초음파를 이용한 척골 신경의 형태학적인 연구 및 동적 안정성을 조사하고, 주관 증후군 환자에서 척골 신경병증에 대한 초음파 영상의 진단에 있어 기초 자료를 마련하고자 한다. 대상 및 방법: $20{\sim}30$세 사이 건강한 정상 성인 남자 25명 50예의 척골 신경에 대하여 연구를 시행하였다. 7.5 MHz 고해상도 초음파의 선상 프로브를 이용하여 주관절 주위의 척골신경을 장축 및 단축영상에서 조사하였다. 장축영상을 통해 척골 신경의 주행경로와 위치, 신경의 굵기를 파악하고, 단축 영상을 내상과 근위부 1 cm, 내상과 후방, 오스본 인대부위, 오스본 인대 원위부 1 cm에서 측정하여 주관절의 굴곡 신전시 각 네 지점에서 척골 신경의 장단경과, 동적 안정성을 측정하였다. 결과: 주관절 신전시 척골 신경의 단경은 각각 2.66 mm, 2.97 mm, 2.64 mm, 2.69 mm로 측정되었다. 한편 장경은 각각 4.61 mm, 4.56 mm, 4.36 mm, 4.37 mm로 측정되어 각 네 곳의 해부학적 지점 간에 큰 변화가 관찰되지 않았다. 한편 굴곡시 척골 신경의 단경은 각각 2.72 mm, 2.34 mm, 2.65 mm, 2.41 mm로 변경되고, 장경은 각각 4.49 mm, 5.40 mm, 4.16 mm, 4.66 mm로 측정되었다. 주관절 굴곡시 내상과 후방에서 척골신경이 의미 있는 형태의 변화가 관찰되었으며 신전 굴곡시 모두 오스본 인대 입구에서 장단경이 가장 작게 관찰되었다. 동적 안정성 측정에서 척골 신경의 아탈구는 9예, 척골 신경 탈구는 7예 관찰되었다. 결론: 주관절 척골 신경의 초음파 검사에서 척골 신경은 정상인에서도 동적 불안정성과 굴곡신전에 따른 척골 신경의 장단경의 형태 변화가 관찰되기에 초음파로 척골 신경병증 진단에 있어 참고해야 할 소견이라고 판단된다.

수태양소장경근(手太陽小腸經筋)에 대한 근육학적(筋肉學的) 고찰(考察) (The study of muscular system about small intestine channel of hand taiyang muscle)

  • 김지남;김영일;홍권의;임윤경;이현
    • 혜화의학회지
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    • 제14권1호
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    • pp.67-81
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    • 2005
  • We have conclusions after the study of muscular system about small intestine channel of hand taiyang muscle. Judging from many studies of interrelation between Meridian muscle and muscle, it is considered that Meridian muscle theory has some similarities with modern anatomical muscular system. It is considered that Small intestine channel of hand taiyang muscle contains Flexor digitorum profundus muscle, Extensor digiti minimi muscle, Abductor digiti minimi muscle, Extensor carpi ulnaris muscle, Flexor carpi ulnaris muscle, Triceps brachii muscle, Infraspinatus muscle, Levator scapulae muscle, Sternocleidomastoid muscle, Masseter muscle, Temporalis muscle. The symptoms of small intestine channel of hand taiyang muscle is similar to referred pain of modern Myofascial Pain Syndrome, and the medical treatment of "I Tong Wi Su(以痛爲輸)" is also similar to that of Myofascial Pain Syndrome. Small intestine channel of hand taiyang muscle is one of the three yang channels of hand muscle, and it has unity in extension of upper limb and trunk in the movement. And it is thought that weakness of small intestine channel of hand taiyang muscle is related with muscular system causing Round Shoulder and Head Forward Position.

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소도구를 이용한 등뼈 자가 관절 가동성 운동이 만성 목통증 환자의 통증, 관절가동범위, 기능장애에 미치는 영향 (The Effects of Thoracic Spine Self-mobilization Exercise Using a Tool on Pain, Range of Motion, and Dysfunction of Chronic Neck Pain Patients)

  • 김수진;김선엽;이민지
    • 한국전문물리치료학회지
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    • 제27권1호
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    • pp.1-10
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    • 2020
  • Background: Thoracic spine self-mobilization exercise is commonly used to manage patients with neck pain. However, no previous studies have investigated the effects of thoracic spine self-mobilization exercise alone in patients with chronic neck pain. Objects: The purpose of this study was to investigate the effects of thoracic self-mobilization using a tool on cervical range of motion (ROM), disability level, upper body posture, pain and fear-avoidance beliefs questionnaire (FABQ) in patients with chronic neck pain. Methods: The subjects were 49 patients (21 males, 28 females) with chronic neck pain. The subjects were randomly divided into an experimental group (EG, n = 23) and control group (CG, n = 26). For the EG, thoracic self-mobilization was applied. We placed a tool (made with 2 tennis balls) under 3 different vertebral levels (T1-4, T5-8, T9-12) of the thoracic spine and the subjects performed crunches, which included thoracic flexion and extension in supine position. Five times × 3 sets for each levels, twice a week, for 4 weeks. Cervical pain, disability, upper body posture, FABQ results, and ROM were evaluated at baseline, after 4 weeks of intervention, and at 8 weeks of follow-up. Assessments included the quadruple visual analogue scale (QVAS); Northwick Park neck pain questionnaire (NPQ); craniovertebral angles (CVA), forward shoulder angle (FSA) and kyphosis angle (KA) measurements for upper body posture; FABQ and cervical ROM testing. Results: The EG showed a statistically significant improvement after intervention in the QVAS (-51.16%); NPQ (-53.46%); flexion (20.95%), extension (25.32%), left rotation (14.04%), and right rotation (25.32%) in the ROM of the cervical joint; KA (-7.14%); CVA (9.82%); and FSA (-4.12%). Conclusion: These results suggest that, for patients with chronic neck pain, thoracic self-mobilization exercise using a tool (tennis balls) is effective to improve neck pain, disability level, the ROM, and upper body posture.

전외측 도달법을 이용한 소절개 회전근 개 봉합술 - 수술 술기 - (Mini-open Rotator Cuff Repair Using Anterolateral Approach - Technical Note -)

  • 조철현;손승원;배기철;이경재;서혁준
    • 대한관절경학회지
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    • 제14권1호
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    • pp.49-52
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    • 2010
  • 목적: 회전근 개 파열에서의 전외측 도달법을 이용한 소절개 봉합술을 소개하고자 한다. 수술 술기: 전신 마취하에 측와위 자세를 취한 후 후방 삽입구, 전방 삽입구를 이용하여 관절내 병변의 유무를 확인하고, 관절경을 견봉하 공간에 위치시킨 후 외측 삽입구를 이용하여 회전근 개의 파열 형태 및 크기를 파악한 후 관절경하견봉 성형술을 시행한다. 견봉의 전외측 연에서 하방으로 3~4 cm의 피부 절개를 가한 후 전방 및 중간 삼각근의 봉합선을 따라 박리하고 삼각근 견인기를 이용하여 시야를 확보한다. 파열된 건에 견인 봉합을 시행하여 해부학적 복원을 위한 위치를 확인한 후 봉합 나사를 이용하여 일열 혹은 이열 봉합술을 시행한다. 봉합술 후 견봉에서 삼각근이 견열되는 것을 방지하기 위해 1번 흡수봉합사를 이용하여 견봉과 삼각근과의 추가적인 봉합을 시행한다. 결론: 본 술기는 회전근 개의 가장 흔한 파열 부위인 극상건의 전방부에 직접 도달이 가능하고, 전방 및 중간 삼각근 사이로 접근하기 때문에 삽입구 연장 도달법에 비해 비교적 적은 견인으로도 시야를 확보할 수 있으며 전방으로는 견갑하건의 상부와 후방으로는 극하건까지 도달할 수 있는 유용한 술식으로 생각된다.

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테니스 플랫 서브 동작의 운동학적 분석 (The Kinematic Analysis of the Tennis Flat Serve Motion)

  • 오정환;최수남;남택길
    • 한국운동역학회지
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    • 제16권2호
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    • pp.97-108
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    • 2006
  • C. H. OH, S. N. CHOI, T. G. NAM, The Kinematic Analysis of the Tennis Flat Serve Motion, Korean Jiurnal of Sports Biomechanics, Vol. 16, No. 2, pp. 97-108, 2006. By the comparison and the analysis of the different factors during the tennis flat serve motion such as the required time per section, the movement displacement of the racket, the velocity of the upper limbs joints, the physical center of gravity, and the angle and the angular velocity of the upper limbs joints between an ace player and a mediocre player, these following results were drawn. First, the experiment result of the total time required per section in a tennis flat serve motion showed that an ace player was faster than a mediocre player by 0.4 seconds. This result suggested that it was required to increase the speed of the racket head by a swift swing to perform an effective flat serve motion. Second, the experiment result of the movement displacement of the racket in the tennis flat serve motion showed that an ace player greatly moved toward the left side on an x-axis. But both an ace and a mediocre player were shown to be at the similar points on a y-axis at the moment of the impact of the racket. An ace player was also shown to be located at a higher position on a z-axis by 0.23m. Third, the velocity of the center of gravity of an ace player was faster in every phase than that of a mediocre player in a tennis flat serve motion. Fourth, the velocity of the upper limb joints of an ace player was faster in every phase than that of a mediocre player in a tennis flat serve motion. Fifth, the experiment result of the speed of the racket head in tennis flat serve motion showed that a mediocre player was faster than an ace player in the first phase, but the latter was faster than the former in the second, third, and the fourth phases. Sixth, at the moment of impact of a tennis flat serve, an ace player had greater flexion of the angle of the wrist joints by an 11.8 degree than a mediocre player. An ace player also had greater extension of the angle of the elbow joint and the shoulder joint respectively by a 5.2 degree and a 1.4 degree with a mediocre player. Seventh, an ace player had greater angular velocity of the upper limb joints and the hip joints than a mediocre player at the moment of the impact of tennis flat serve. Eighth, an ace player was shown to have a greater change of the forward and the backward inclination (or the anterior and posterior inclination) of the upper body