• Journal of Korean Physical Therapy Science
• /
• v.29 no.1
• /
• pp.73-86
• /
• 2022

Background: The purpose of this study is to investigate the effect of plantar flexor on muscle fatigue and endurance when two different sport tapes are applied. Design: Cross-sectional design. Methods: Fifty-one healthy adults were randomly assigned to dynamic taping group (n=17), kinesio taping group (n=17), and control group (n=17). The dynamic taping group used the dynamic tape. The kinesio tape group used the kinesio tape, and the control group doesn't used tape. Every group performed heel rise test and sEMG for every during pre-test and post-test. To evaluate plantar flexor endurance, the number of times was measured during the heel rise test. Results: The number of heel rises increased significantly in the post-test in dynamic taping group compared to the pre-test, and In comparison between groups, the number of heel rises significantly increased in dynamic taping group compared to kinesio taping group and control group. PEF value was significantly increased in the post-test compared to the pre-test in dynamic taping group, and there was a significant difference between the three groups according to the taping application. Conclusion: The results of this study confirmed that dynamic taping was effective in musclular fatigue and endurance on plantar flexor in healthy adults. Based on these results, it is suggested that the application of dynamic tape can be suggested as one of the intervention methods for muscle endurance and muscle fatigue.

• The Journal of Korean Physical Therapy
• /
• v.33 no.6
• /
• pp.272-277
• /
• 2021

Purpose: The purpose of this study is to confirm the effect of static stretching of the plantar flexor for 5 minutes on balance and ankle muscle activity when walking in young adults. Methods: This study experimented on 20 healthy college students without vestibular and musculoskeletal diseases. Subjects performed static stretching intervention of plantar flexor for 5 minutes on a stretch board set at 15° to 25° Balance was measured four times before intervention (pre), after intervention (post), 5 minutes after intervention (post 5 min), 10 minutes after intervention (post 10 min), and ankle muscle activity was measured during walking. For the analysis and post hoc analysis, one-way Repeated Measure ANOVA and Fisher's LSD (Last Significant Difference) was performed to find out the change in balance and the activity of ankle muscles before static stretching, pre, post, post 5 minutes rest, post 10 minutes rest. Results: There was no significant difference in weight distribution index (WDI) in balance, but stability index (ST) showed a significant difference, and there was also a significant difference in correlation pre, post, post 5min rest, post 10 minutes rest (p<0.05). There was no significant difference in ankle muscle activity during walking in Tibialis anterior (TA), Medial gastrocnemius (GM), and Lateral gastrocnemius (GL) (p>0.05). Conclusion: The stability index (ST) increased significantly immediately after static stretching and decreased after 5 minutes. After static stretching, at least 5 minutes of rest are required to restore balance.

• Journal of The Korean Society of Integrative Medicine
• /
• v.11 no.3
• /
• pp.195-204
• /
• 2023

Purpose : This study applied general training (control group) or cranio-cervical flexor training (experimental group) using a pressure biofeedback unit along with general training for 4 weeks to secondary school teachers with moderate to severe neck pain and forward head posture. After that, we tried to compare the effects through differences in neck pain intensity (using numberical rating scale), functional performance (using neck disability index), and cranio-vertebral angle change. Methods : All 50 subjects were randomly assigned to either the "experimental group (n= 25)" or the "control group (n= 25)", and the measurements were evaluated in the same way before the intervention (baseline) and after the intervention (4 weeks). During the intervention period, the subject visited the physiotherapy center and made a reservation three times a week at a fixed time as much as possible, and each training session was thoroughly conducted under the 1:1 guidance of the therapist in charge so that the correct movement and number of times could be performed without compensatory action. Results : As a result of the homogeneity analysis on the general characteristics of the subjects, there were no significant differences between the groups in all variables (p>.05). Compared to the "control group", the "experimental group" showed significant improvement after intervention in all measured variables of neck pain intensity, functional performance, and cranial-vertebral angle (p<.05). Conclusion : For secondary school teachers with forward head accompanied by neck pain, cranio-cervical flexor training using a compression biofeedback unit is an excellent method to show superior pain reduction and functional performance improvement compared to general training alone. In addition, it can be presented as a more effective intervention method that can promote recovery of forward head posture, which is an essential element of the solution.

• Korean Journal of Applied Biomechanics
• /
• v.14 no.3
• /
• pp.219-233
• /
• 2004

The purpose of this study was to compare the EMG activities of four-forearm muscles during Kumdo head striking. The four skilled and unskilled Kumdo club members were selected from D university in B city. Investigated muscles were left brachioradialis, right brachioradialis and left flexor carpi radialis, right flexor carpi radialis. Raw EMG data were collected during the head striking motions and the average EMG were calculated by the frame width of 0.05s, and then the average %MVC were calculated. The average %MVC values of each muscle in each group were compared. The results are as follows. 1) In each group, there were no significant statistical differences between every muscle over the all phases. 2) There were significant differences, however, between skilled group and unskilled group. The former got higher average %MVC at left flexor carpi radialis and the latter at right brachioradialis in the ready phase and in the impact phase.

• Journal of The Korean Society of Integrative Medicine
• /
• v.3 no.2
• /
• pp.55-61
• /
• 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.

• Applied Microscopy
• /
• v.26 no.2
• /
• pp.157-175
• /
• 1996

The development of flexor digital tendon of the hand was studied by electron microscopy in human fetuses ranging from 9 mm to 260 mm crown rump length. The primordium of tendons was first identified as discrete collection of mesenchymal cells at 25 mm fetus. Synovial sheath formation had commenced by 40 mm fetus and was complete by 70 mm fetus. Cell junction or adhesion sites at all ages were noted between the tendon cells. When dilatation of the synovial cavity occurred, two types of synovial cells were observed. A-type cells had numerous vesicles and large vacuoles. In contrast, B-type cells were characterized by abundant rough endoplasmic reticulum and well-developed Golgi complex. By $150mm{\sim}260mm$ fetuses, a mojority of the synovial cells were type B. The most remarkable difference between the synovial cells of full-term fetus and adult was the larger amount of collagen fibers in the latter. The vascular buds were first observed between the individual fibril bundles in the interfascicular space at 150 mm fetus. At 25 mm fetus, collagen fibrils were first noted within narrow cytoplasmic recesses which were continued with the extracellular space. Collagen fibrils were filled in almost entire extracellular space at 150 mm fetus. Besides collagen fibrils in the extracellular space small elastic fibers were also identified and followed in their development.

• The Journal of Korean Physical Therapy
• /
• v.14 no.1
• /
• pp.1-13
• /
• 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.

• Journal of Korean Foot and Ankle Society
• /
• v.24 no.2
• /
• pp.102-106
• /
• 2020

A postoperative hallux varus deformity is a dreaded complication of hallux valgus surgery. Several surgical options have been introduced to overcome this problem. This paper reports an uncommon case of a 68-year-old female patient who presented with a postoperative hallux varus deformity combined with a rupture of the flexor hallucis longus (FHL) tendon. She was treated successfully by a minimally invasive correctional osteotomy with open tenorrhaphy. With experience in treating this complicated case, it was noted that FHL could be transected during the trans-articular adductor tenotomy. Hence, extra caution is needed when the degree of hallux valgus deformity is excessive. To the best of the author's knowledge, correctional valgization osteotomy for a postoperative hallux varus deformity in a minimally invasive manner has not been reported. This case report is expected to benefit surgeons and their patients with severe hallux valgus deformity.

• Journal of the Korean Society of Physical Medicine
• /
• v.6 no.4
• /
• pp.497-504
• /
• 2011

Purpose : Chronic cervical pain is a common source of disability in society. There has been no research regarding the amount of pressure for the deep cervical flexors during cranio-cervical flexion exercise (CCFE). The purpose of this study is to determine optimal pressure levels to facilitate deep cervical muscles (longus colli & longus capitis) during cranio-cervical flexion exercise, using ultrasound measurement of the muscles. Methods : Using a cross-sectional design, the study was performed in an experimental group of 19 subjects (7 men, 12 women) with no cervical pain. Participants were instructed to perform the CCFE, and during the five incremental stages of the test, changes in thickness, as compared to resting baseline values, were measured using ultrasonography for sternocleidomastoid muscle (SCM) and deep cervical muscles (DCF). Results : Both DCF and SCM muscles demonstrated an increase in recruitment with each progressive phase of the test. In comparing the different pressure increments, the most significant changes found in DCF thickness were between phase 2 and phase 3 (p<.05). However no differences were found between pressure increments for SCM thickness (p>.05). Conclusion : The results suggest 26 mm Hg as the optimal pressure level during cranio-cervical flexion exercise for facilitation of deep cervical flexor.

• Journal of Korean Physical Therapy Science
• /
• v.2 no.1
• /
• pp.367-373
• /
• 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).