• Anatomy and Cell Biology
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• 제56권1호
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• pp.46-53
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• 2023

It is unclear whether forearm and crural muscle fibers extend distally across the wrist and ankle joints, respectively. We hypothesized, in late-term fetuses, an over-production of muscle bellies extending over the joint. Muscle fibers in histological sections from unilateral wrists and ankles of 16 late-term fetuses (30-40 weeks) were examined and compared with 15 adult cadavers. Muscle fibers of the flexor digitorum profundus (FDP) and flexor digitorum superficialis (FDS) in fetuses, especially muscle bellies to the third and fourth fingers, were found to extend far distally beyond the radiocarpal joint. The extensor digitorum and extensor pollicis longus on the extensor side of the wrist were found to carry distally-extending muscle fibers, but these fibers did not extend beyond the distal end of the radius. In the ankle, most muscle bundles in the flexor hallucis longus (FHL), fibularis brevis (FB) and extensor digitorum longus extended distally beyond the talocrural joint, with most FB muscle fibers reaching the level of the talocalcaneal joint. In adult cadavers, muscle fibers of the FDP and FHL did not reach the levels of the radiocarpal and talocrural joints, respectively, whereas the FB muscle belly always reached the talocalcaneal joint. Similarly, some of the FDS reached the level of the radiocarpal joint. Generally, infants' movements at the wrist and ankle could result in friction injury to over-extended muscle. However, the calcaneal and FDP tendons might protect the FB and FDS tendons, respectively, from friction stress.

• 대한임상전기생리학회지
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• 제3권1호
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• pp.31-47
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• 2005

Fatigue is a common experience in our daily life and in therapeutic exercises. Human muscle fatigue has been studied using a wide variety of exercise models, protocols and assessment methods. This study conducts quantitative evaluation of fatigue of knee extensor with surface electromyography and dynamometer and is to provide basic materials in physical therapy diagnosis and assessment of skeletal muscle. Measurement of two stages was conducted with 88 normal adults between their twenties and seventies, correlations and differences using collected data according to age was compared and correlations among measured items were analyzed and then the following conclusions were obtained. Analysis of sEMG and dynamometry of knee extensor showed that MDF, FI, MVIC, ET had the closest relations with age and MDF, FI, MVIC were significantly increase with aging. In addition, it was found that there were high correlation among items of analysis.

• International Journal of Internet, Broadcasting and Communication
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• 제12권1호
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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.

• 대한통합의학회지
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• 제3권2호
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• pp.55-61
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• 2015

Purpose: The purpose of this study was to investigate the effect of regularly strength exercise of spine in teenagers with tutor. Method: Study subjects were 24 middle school students. They were arranged to 2 groups(n=12, respectively). Then experimental group did regularly strength exercise of spine as the handout maneuver during 50min/day and 1day/week in 8 weeks with tutor, but control group did regularly exercise of spine as same maneuver without tutor. For muscle strength of both extensor and flexor of lumbar, the balancing ability and weight distribution index were measured before and after the intervention. Results: For muscle strength of both extensor and flexor of lumbar, there was not significant differences after the intervention, but both flexor and extensor increase mean value of muscle strength than control group. For balancing ability and weight distribution index, there were not significant difference after intervention(p>.05), but experimental group show a tendency to decrease in a few position than control group. Conclusion: When teenagers regularly exercise for spine strengthening for a long time with tutor, it may be increased muscle strength of lumbar and trunk balance.

• 대한족부족관절학회지
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• 제10권1호
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• pp.101-104
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• 2006

Occasionally, extensor hallucis longus tendon (EHL) ruptures becames open by laceration and spontaneous rupture of EHL that has previous story of diabetes mellitus, steroid injection, systemic steroid administration, operation and rheumatoid arthritis. But, closed traumatic EHL ruptures are reported rarely. Especially, we diagnosed the closed EHL ruptures in TaeKwonDo players. We reported the 2 patients, differently treated end to end anastomosis and EHL transfer, had the course and treatment methods. Be care the prognosis can be altered according to the treatment time and method.

• The Journal of Korean Physical Therapy
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• 제14권1호
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• pp.1-13
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• 2002

The purpose of this study was to investigate the effect of home exercise program on the improvement of muscle strength in the elderly. Subjects were forty members living in Daegu (20 males, 20 females), between 65 and 81 years of age. The subjects were divided into two groups; an experimental group and a control group, and each group included 10 males and 10 females. The subjects for the experimental group were participated in the home exercise program for 8 weeks, between April 2001 and June 2001. The results of this study follow: 1.General characteristics statistically significantly affecting for knee extensor strength were weight, height, right sight vision, diastolic blood pressure, pulse rate, obesity and thigh BMD; vision and thigh BMD were for knee flexor strength 2. After the exercise program, knee extensor strength in the experimental group improved 30.8% (p<0.001), and knee flexor strength improved 23.9% (p<0.001). 3. After the exercise program, there was significant difference in knee extensor strength (p<0.05) and knee flexor strength (p<0.05) between the experimental group and the control group. As a continuous health care for the elderly using this home exercise program could be helpful to enhance health of the elderly and promote their quality of life.

• 대한족부족관절학회지
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• 제13권2호
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• pp.193-196
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• 2009

The first metatarsophalangeal joint injury is common in professional soldiers and athletes. But this was rarely reported. A professional soldier has varus instability in the first metatarsophalangeal joint due to hyperextension. In the MR Imaging, weavy appearance in lateral collateral ligament and high signal change in plantar plate was shown. So he has surgical treatment using reconstructive procedure. At first, $4^{th}$ extensor digitorum longus tendon was splitted longitudinally and harvested, second triangular shape reconstruction on lateral joint line was done using harvested tendon. One year later, fifteen degrees was limited compared with intact side. Reconstruction using $4^{th}$ extensor digitorum longus tendon in traumatic dynamic hallux varus was good method.

• 대한한의학회지
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• 제36권4호
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• pp.69-73
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• 2015

Objectives: This study was carried out to analyse the skin of the Hand lesser yang in human. Methods: The Hand lesser yang meridian was labeled with latex in the body surface of the cadaver, subsequently dissecting a body among superficial fascia and muscular layer in order to observe internal structures. Results: This study has come to the conclusion that a depth of the skin has encompassed a common integument and a immediately below superficial fascia, and this study established the skin boundary with adjacent structures such as relative muscle, tendon as compass. The skin area of the Hand lesser yang in human is as follows: The skin close to the ulnar root angle of 4th finger nail, above between 4th and 5th metacarpal bone, between extensor digit. minimi tendon(t.) and extensor digit. t., extensor digit. m(muscle). at 2, 4, 7 cun above dorsal carpal striation, triceps brachii m. t., deltoid m., trapezius m., just around the ear, upper orbicularis oculi m. Conclusions: The skin area of the Hand lesser yang from anatomical viewpoint seems to be the skin area outside the superficial fascia or the muscle involved in the pathway of the Hand lesser yang meridian, the collateral meridian, the meridian muscle, with the condition that we consider adjacent skins.

• 대한물리치료과학회지
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• 제2권1호
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• pp.367-373
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• 1995

The purpose of this studied was the comparison with shoulder girdle muscles of isokinetic evaluation in the spinal cord injury group, and adults normal group. Data was collected from 20 cases spinal cord injury from January 10. 1994 to February 10, 1995 in a Chungnam University hospital and adults normal group to 20 cases. The results were as follows; 1. Low speeds peak torque was higher spinal cord group than normal group shoulder girdle muscles of flexor, extensor, external rotator showed statistically significant in spinal cord injury group(p<0.05). Against normal groups shoulder girdle muscles of internal rotator showed statistically significant in normal group(p<0.05). 2. High speeds peak torque was higher spinal cord group than normal group shoulder girdle muscles of flexor, extensor, showed statistically significant in spinal cord injury group(p<0.05). 3. High speeds total work was higher spinal cord group than normal group shoulder girdle muscles of flexor, extensor, external rotator showed statistically significant in spinal cord injury group(p<0.05).(p<0.01). Against normal group shoulder girdle muscles of internal rotator showed statistically significant in normal group(p<0.05).

• 대한통합의학회지
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• 제1권3호
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• pp.9-17
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• 2013

Purpose : The purpose of this study was to analyze the effects of transverse abdominal exercise on the change of chronic low back pain and lumbar muscle strength. Method : 18 chronic lumbago patients were transverse abdominal exercise for 3weeks. Result : 1. The strength of the lumbar extensor and flexor of the male subjects was increased significantly after abdominal exercise(p<0.05). 2. The strength of the lumbar extensor and flexor of the female subjects was increased significantly after abdominal exercise(p<0.05). 3. The study can confirm significant relationship between the lumbar muscle strength and lumbar pain before and after the exercise Conclusion : The study of could find the increase of the ability of the lumbar extensor and flexor of both male and female subjects suffering from chronic low back and pain using three-week transverse abdominal exercise. The study confirmed the general decrease of pain after the experiment.