- Young-Taek Hong
- Dong-Yeop Lee
- Jin-Seop Kim
- Ji-Heon Hong
- So-Min Joo
- Hee-Joo Kim
- Mi-Jin Kim
- Yun-Jeong Lee
- Yun-Sun Jung
- Ye-Eun Kim
- Min-Hyeok Choi
- So-Dam An
- Han-Bi Lee
- Eun-Byeol Jang
- Seol-Ah Kang
- Soo-Jeong Kwon
- Dong-Yoep Lee
- Ha-Young Baek
- Su-Jeong Seol
- Eun-Hye Kim
- Da-Hyun Lee
- Su-Bin An
- Da-Young Choo
- Hae-Young Lee
- Seung-Hee Jang
- Ga-Ram Jeon
- Yi-Won Yu
- Motomi To
- Yun-Ji An
- Ye-Ji An
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Yu, Jae-Ho
- Changes in the Subacromial Space according to the Angle of Shoulder Abduction
Authors
1 Department of Physical Therapy, Sun Moon University, Asan-si - 336 708, Chungnam, KR
Source
Indian Journal of Science and Technology, Vol 8, No 25 (2015), Pagination:Abstract
Subacromial space is anatomically bounded to the acromion and the humeral head in consists of the superficial glenoid fossa. By narrowing the subacromial space, this is likely to occur such as rotator cuff injury and shoulder impingement syndrome. Therefore, the aim of this study was by comparison analysis to distance according to subacromial space the abduction angle of the shoulder joint to using ultrasonography. Thirty healthy adult males were recruited and agreed to participate as the subject in this study. This study was single group repeated measurements design and measured subacromial space according to angle of the shoulder abduction setting to 0°, 30°, 60° and 90° using ultrasonography. All measurements was used one-way repeated ANOVA to analysis difference between the variables. The result of study, there were significant differences among shoulder abduction 0°(11.30 mm), 30°(9.40 mm), 60°(8.01 mm) and 90°(7.10 mm). In conclusion, current study confirmed that subacromial space had an effect on the angle of shoulder abduction. Clinically it is considered that ultrasonography measurement of subacromial space helps to the differential diagnosis of rotator cuff injury and shoulder impingement syndrome.Keywords
Networking, Shoulder Abduction, Subacromial Space, Ultrasonography.Full Text
- The Change of Pennation Angle of Medial Gastrocnemius on Different Heights of Heels
Authors
1 Department of Physical therapy, Sunmoon University, Chung-Nam, Korea
Source
Indian Journal of Science and Technology, Vol 9, No 43 (2016), Pagination:Abstract
Objectives This study aims to investigate the effect of pennation angle and surface Electromyography (sEMG) activity of medial gastrocnemius on different heights of high heels by using ultrasonography and sEMG. Methods/Statistical Analysis: Twenty eight healthy young females participate in this study. In order to measure the pennation angle and sEMG activity of medial gastrocnemius, we instructed subjects to stand barefoot and wearing two high heels (5 cm and 10 cm). We measured ultrasonography and sEMG activities for three times on three conditions (barefoot, 5 cm, 10 cm) repeatedly and used the mean of measurement values. One-way repeated ANOVA was used to see the difference of individual intervention and Bonferroni’s correction for post-hoc was used to that. Findings: Pennation angle and sEMG activities in medial gastrocnemius showed significant differences on three conditions (barefoot, 5 cm, 10 cm). Improvements/Applications: Furthermore, measurement of muscle activity using ultrasonography is considered useful way because pennation angle and sEMG activity in medial gastrocnemius increased in accordance with the increasing height of heels identically.Keywords
Electromyography Activity. Heel Height, Pennation Angle, Ultrasonography Image.Full Text
- The comparisons of tape of different type applied on forward head posture positions
Authors
1 Department of Physical therapy, Sunmoon University, Chung-Nam, Korea
Source
Indian Journal of Science and Technology, Vol 9, No 43 (2016), Pagination:Abstract
Objectives: This study is to find out the effect on the neck and shoulder muscle activation changes when applying the elastic and non-elastic tape in forward head posture. Methods/Statistical Analysis: After preliminary research, 30 adult males and females were recruited and agreed to participate as the subject in this study. All subjects were measured their muscle activation with forward head posture, attaching the elastic tape, non-elastic tape and not attaching the tape by using Electromyography (EMG) equipment. The muscle activation of upper trapezius and splenius capitis is analyzed by using a one-way repeated ANOVA. Findings: As a result of the measurement value comparisons, applying non-elastic tape statically decrease muscle activation than elastic tape in the forward head posture (p<.05). Improvements/Applications: The result shows that non-elastic tape is more useful for forward head posture to support.Keywords
Elastic Tape, Electromyography, Forward Head Posture, Non-Elastic Tape.Full Text
- The Effect of Auditory and Vibration Stimulation on Proprioception of the Lower Extremity
Authors
1 Department Physical Therapy, Sun Moon University, Asan-si, Chungnam, KR
2 Department Physical Therapy, Sun Moon University, Asan-si, Chungnam
Source
Indian Journal of Science and Technology, Vol 9, No 44 (2016), Pagination:Abstract
Objectives: The purpose of this study was to vibration and auditory stimuli affected the sense of ankle, knee, and hip joint position. Methods/Statistical Analysis: 40 healthy male and female adults who did not undergo an operation for diseases relevant to ankle, knee and hip joints were recruited for this test. By dividing experiment group into auditory stimulus group, vibration stimulus group, auditory, vibration stimulus group, sense of position for ankle, knee and hip joints was measured and for control group, sense of position for ankle, knee and hip joints was measured without any intervention. In order to give excitation arousal to auditory stimulus group and vibration stimulus group, cheerful music was played to them and to give vibration stimulus to vibration stimulus group and auditory, vibration stimulus group, vibration stimulus was given to them. Test subjects were directed to remember target angle through exercise of 5 times including ankle joint 20o, knee joint 30o and hip joint 95o and then stop exercise when they thought to arrive at the first remembered angle after taking a rest. As measurement tool, isokinetic muscular strength test equipment was used. Findings: In auditory stimulus group, significant difference was represented in ankle joint and in vibration stimulus group (p<.05), such difference was represented in ankle, knee and hip joints (p<.05). However, its mean value did not show any significant difference (p>.05). Improvements/Applications: As a result, this research has proved that vibration stimulates the ankle, knee, hip joint position sense and auditory stimulation of the senses is the effect on the position of the ankle stimulation.
Keywords
Ankle Position Sense, Auditory Stimulation, Hip Position Sense, Proprioception, Vibration Stimulation.Full Text
- The Comparison of Various Positions on Lumbar Multifidus Activation
Authors
1 Department of Physical Therapy, Sun Moon University, KR
Source
Indian Journal of Science and Technology, Vol 9, No 25 (2016), Pagination:Abstract
Background/Objectives: Core stability means muscular control on the back regions. Lumbar multifidus is important for stabilization in back region. To demonstrate how multifidus activation would be changed in the various positions. Methods/Statistical Analysis: Thirty healthy males were recruited for the study. The researchers educated the participants how to make the right positions, which consists of the prone, the side lying, and the sitting position. The researchers measured the subjects' lumbar multifidus two times randomly using the ultrasonography. The transducer that is rectangular and has flat surface used 7-10MHz with a 50mm penetration depth. The raw data was analyzed using one-way repeated measures ANOVA to compare the positions. Findings: In the prone position, the lumbar multifidus' thickness was 22.7cm, whereas in the sidelying and sitting position, the lumbar multifidus thickness was 19.4cm and 20.0cm. It means that the Lumbar multifidus more activated in the prone position than other positions. Among those positions, if lumbar multifidus exercise is needed for patients who do not have any kind of lumbar pain, the prone position would be the best position for lumbar multifidus exercise to the patients. There were only few studies about comparing multifidus activation in various positions, but even in previous studies, no studies examined that how the lumbar multifidus worked in those three positions. Thus, the study proved that in which positions the lumbar multifidus activates more. Application/Improvements: Many patients need to core muscles exercise for their low back pain. In that case, doing lumbar multifidus exercise in the prone position would be the best position.Keywords
Lumbar Multifidus, Prone Position, Side Lying Position, Sitting Position, Ultrasonography.Full Text
- A Study of Postural Sway according to the Wedge Direction during one Leg Standing
Authors
1 Department of Physical Therapy, Sun Moon University, KR
Source
Indian Journal of Science and Technology, Vol 9, No 25 (2016), Pagination:Abstract
Background/Objectives: Equilibrium is the ability to maintain the Center Of Gravity (COG) in their Base Of Support (BOS) and the human body to maintain balance. The purpose of this study is to healthy adults when wearing medial/lateral wedge, ankle posture was to evaluate the effect of the dynamic balance. Methods/Statistical Analysis: This study elected a healthy adult male 14, female 26 people that have no physical balance due to musculoskeletal and neurologic abnormalities, ankle instability. Tetrax interactive balance system was maintained for 30 seconds on each surface (plane surface, lateral wedge, medial wedge) on the one leg standing position. Tetrax interactive balance system results through the General Stability Index (GST), Weight Distribution Index (WDI), weight distribution was collected. Data was analyzed the within surface in comparison paired t-test and the between surface in comparison one-way ANalysis Of VAriance (ANOVA). Findings: In the comparison between each floor, there were significant differences in weight distribution index (p<.05), in visual conditions change between the stability index was a significant difference (p<.05). Weight distribution difference of left and right were significant differences between the medial wedge and flat from the eyes open (p<.05), The eyes-closed state was a significant difference in medial wedge, flat and medial wedge, lateral wedge(p<.05). Therefore, closing one's eye is considered during dynamic balance training to get the effect of improving result. Application/Improvements: Therefore, closing one's eye is considered during dynamic balance training to get the effect of improving result.Keywords
Dynamic Balance, Lateral Wedge, Medial Wedge, One Leg Standing, Weight Distribution.Full Text
- Differences of Muscle Activities of Various Bridge Postures Using Thera-band on the Stable Surface
Authors
1 Sunmoon University, Physical Therapy, KP
Source
Medico-Legal Update, Vol 20, No 1 (2020), Pagination: 1778-1782Abstract
Background/Objectives: This study was conducted to compare and analyze the muscle activity of vastus lateralis, muscle vastus medialis, spinal erector muscles and gluteus maximus muscle using the EMG measuring device and suggest effective results of the bridge exercise when conducting the bridge exercise with various bridge postures using resistance of Thera-band on the stable support surface.
Method/Statistical Analysis:In order to examine the difference in the muscle activity of vastus lateralis, vastus medialis, erector spinae and gluteus maximus, a total of 3 exercises were conducted by each different posture; the normal bridge posture, the hip adduction bridge posture using the resistance of Thera-band and the hip abduction bridge posture using the resistance of Thera-band. The measured results of the experiment was analyzed by repeated measure analysis of variance
Findings: The results showed that muscle activity was all higher when conducting the bridge exercise using the resistance of Thera-band for vastus lateralis, vastus medialis, erector spinae and gluteus maximus, In the hip adduction bridge posture, vastus lateralis and vastus medialis showed significant difference, and in the hip abduction posture, gluteus maximus showed significant difference compared to the normal bridge posture.
Improvements/Applications: It is considered that the hip abduction bridge exercise and the hip adduction bridge exercise using the resistance of Thera-band can help stabilize the body.
Keywords
Bridge Exercise, Thera-Band, Hip Adduction, Hip Abduction, Muscle Activity.
- A Comparison of Muscle Activity Depending on Shoulder Joint Flexion Angle When Conducting Kettle Bell Swing
Authors
1 Sunmoon University, Physical Therapy, KP
Source
Medico-Legal Update, Vol 20, No 1 (2020), Pagination: 1783-1787Abstract
Background/Objectives: The kettle bell exercise is effective in improving the strength and physical strength of the whole body as a popular exercise for modern people. The purpose of this study was to compare the muscle activity of Biceps femoris, Vastus medialis oblique, Erector spine and Anterior deltoid depending on shoulder joint flexion angle when conducting kettle bell swing.
Method/Statistical Analysis:The kettle bell exercise is effective in improving the strength and physical strength of the whole body as a popular exercise for modern people. The purpose of this study was to compare the muscle activity of Biceps femoris, Vastus medialis oblique, Erector spine and Anterior deltoid depending on shoulder joint A total of 30 healthy men and women who agreed to participate in the study were the subjects. All of the kettle bell swing starting positions were conducting with flexion knee about 50° and the whole body. The shoulder flexion angle was set 90°, 140°, 180° and the end position was the same as the starting position. For comparison of the muscle activity depending on shoulder joint angle, One-way Repeated ANOVA was used and Bonferroni method for post-test.
Findings: Biceps femoris showed significant differences at all degrees(P.05). There was no significant difference in the spinal erector muscle (p>.05).
Improvements/Applications: Therefore the muscle activity degree for each muscle was clearly different depending on the shoulder angle.
Keywords
Kettle Bell, Kettle Bell Swing, Muscle Activity, Exercise, Peak Value.- Change in Lower Extremity Muscle Activity with Visual and Noises During Walking
Authors
1 Sunmoon University, Physical Therapy, KP
Source
Medico-Legal Update, Vol 20, No 1 (2020), Pagination: 1788-1792Abstract
Background/Objectives: In this study, four conditions of visual and noises were examined to determine the inferior limb muscle activity after walking for 10 minutes on a treadmill.
Method/Statistical Analysis:Nine males and nine females, who agreed to participate in the study, were recruited. Participants were asked to walk on a treadmill for 10 minutes on each of the four conditions (a), (b), (c), and (d) depending on visual acuity and noise. Electromyograph was used to measure and compare muscle activity.
Findings: There was no significant difference in biceps femoris muscle(p>.05). The comparison of the tibialis anterior muscle resulted in a significant difference between the conditions a-c, a-d, b-c and b-d (pc>b>a, followed by de-conditioned vision and dB was the highest when it was higher 90. The comparison of the lateral gastrocnemius muscle resulted in a significant difference between the a-c, b-c and b-d conditions (pc>b>a, followed by de-conditioned vision and dB was the highest when it was > 90. The comparison of the medial gastrocnemius muscle showed that not all four conditions differed significantly (p>.05).
Improvements/Applications: There was significant difference in muscle activity between TA, LGM than when vision was blocked, that the muscle activity has improved when walking over 90 dB than 60 dB
Keywords
Gait, Visual, Noise, Treadmill, Electromyography.- Immediate Changes of Shoulder External Rotation Exercise of Various Angle on the Distance of Subacromial Space
Authors
1 Sunmoon University, Physical Therapy, KP
Source
Medico-Legal Update, Vol 20, No 1 (2020), Pagination: 1793-1798Abstract
Background/Objectives: This study was conducted to examine the distance of the subacromial space when conducting external rotation according to the shoulder joint abduction angle
Method/Statistical Analysis:The study subjects were 40 volunteer participants. The abduction angle of the shoulder joint was set 0°, 45°, 90° and 120° with 10 subjects per angle as a total of 4 groups and the examined changes the subacromial space when conducting external rotation before and after. Ultrasonography was used for the measurement, and the measurement part was the subacromial space.
Findings: 0° and 45° did not show any significant difference before and after exercise. But At 90 degree, there was significant difference, pre-exercise was 10.0±0.92 and post-exercise was 10.3±0.95 (p<0.05). And at 120 degree, there was significant difference, pre-exercise was 11.5±2.62 and post-exercise was 12.05±2.51 (p<0.05).
Improvements/Applications: The distance changes according to the posture cannot be found. Because it was conducted with normal subjects, it seems to have a heavy burden to apply to patients with shoulder injury. There is a limit to generalize toward all patients. Exercise period for muscles was short. Future studies may provide better results if intervention is conducted for a long period of time in various postures and patients.
Keywords
Subacromial Space, External Rotation, Abduction, Acromion, Ultrasonography.- A Study on the Selective Strengthening Exercise of the Quadriceps Muscle According to Various Squat Types
Authors
1 Department of Physical Therapy, Sun Moon University, Asan-si, Chungnam, KP
Source
Medico-Legal Update, Vol 20, No 1 (2020), Pagination: 1857-1862Abstract
Background/Objectives: The purpose of this study was to identify the highest activation in Vastus Medialis (VMO), Vastus Lateralis (VL) and Rectus Femoris (RF) while performing various squat exercises to create an effective exercising method.
Method/Statistical Analysis:40 healthy subjects (males 23, females 17) from S University were recruited. Subjects performed four different types of squats; General Squats (GS), Instability Squats on an unstable surface (IS), Knee Adduction Squats (KAS), and Wall squats (WS). The difference in the activation of VMO, VLO and RF were recorded during the various exercises were analyzed and recorded with the EMG.
Findings: Measurements of all the experiments were analyzed using one-way ANOVA. Within these results, RF showed the most activation during (WS) and the least activation during (KAS). However, there were no significant differences found between (GS) and (IS). VLO showed the most activation during (GS). On the other hand, there were no significant differences found within (IS) and (WS). In addition to our results, VMO showed the least activation during (KAS). All three muscles displayed different activation patterns during each squat exercise.
Improvements/Applications: Considering these findings, this study may help to design a more effective exercise for specific muscles when strengthening the leg muscles.
Keywords
Weight Bearing Exercise, Various Squat, Base of Support, Muscle Activity, Selective Quadriceps.- Change of Serratus Anterior Muscle Thickness According to Knee Flexion Angle During Knee-Push Up Plus Exercise on Sling
Authors
1 Department of Physical Therapy, Sun Moon University, Asan-si, Chungnam, KP
Source
Medico-Legal Update, Vol 20, No 1 (2020), Pagination: 1863-1868Abstract
Background/Objectives: The purpose of this study is to compare the change of thickness of serratus anterior muscle to different angles of knee flexion when knee push up plus (KPP) exercise is conducting on an unstable surface (sling).
Method/Statistical Analysis: There were 30 healthy young male and female students randomly selected and divided into 3 different groups along different knee flexion angles on an unstable surface (sling). The three groups of ten did KPP exercises on the sling. The muscle was measured before and after the exercise.
Findings: All three groups showed some changes in the thickness of the muscle. The group with the biggest change was the 60° knee flexion, followed by 75° and 90° groups.
Improvements/Applications: Based on the results, all experimental groups showed some differences with KPP exercise conducted on an unstable surface (sling) and especially the group with the lowest angle had the most effect. Therefore, it is concerned that a lower knee flexion angle can be more effective on the KPP exercise.