An immediate effect of axial neck rotation training with real time visual feedback using a smartphone inclinometer on improvement in axial neck rotation function

Park, Kyue-nam,Kwon, Oh-yun,Kim, Si-hyun,Jeon, In-cheol Informa UK (Taylor Francis) 2017 Physiotherapy theory and practice Vol.33 No.3

Immediate Effects of Upper Trapezius Stretching in More and Less Tensed Positions on the Range of Neck Rotation in Patients With Unilateral Neck Pain

Kyue-nam Park,Sung-min Ha,Si-hyun Kim,Oh-yun Kwon 한국전문물리치료학회 2013 한국전문물리치료학회지 Vol.20 No.1

The purpose of this study was to compare the immediate effects of upper trapezius muscle stretching in more tensed position (MTP) and less tensed position (LTP) on the change of range of motion (ROM) for neck rotation, and the ROM for conjunct neck motions at end-range of neck rotation toward the painful side in patients with unilateral neck pain. Eighteen patients with unilateral neck pain were recruited for the study’s MTP group, and 18 age-, weight- and gender-matched patients with unilateral neck pain were recruited for LTP group. The ROM changes in active neck primary and conjunct motions were measured using a cervical ROM inclinometer in the sitting position. Our results showed that both upper trapezius stretching method in MTP and LTP were significantly effective in increasing the ROM of neck rotation toward painful side in patients with unilateral neck pain. However, a significantly greater increase in the ROM for neck rotation and a further decrease in conjunct neck extension during neck rotation toward the painful side were shown in MTP group, compared to LTP group. The upper trapezius stretching in MTP is useful in increasing the ROM of neck rotation and decreasing the range of conjunct neck extension during neck rotation toward the painful side in patients with unilateral neck pain.

Effects of Soft Tissue Massage of the Posterior Deltoid Muscle on Shoulder Horizontal Adduction

Kyue-nam Park,Oh-yun Kwon,Si-hyun Kim,Houng-sik Choi 한국전문물리치료학회 2010 한국전문물리치료학회지 Vol.17 No.4

Stiffness of the posterior deltoid is as a causative factor in the limited range of glenohumeral horizontal adduction and various other shoulder pathologies including shoulder impingement syndrome, frozen shoulder, and humerus anterior glide syndrome. The purpose of this study was to compare the effects of two techniques (soft tissue massage and cross-body stretch) on increasing the range of horizontal adduction Thirty-two subjects with a 10° or greater difference between the right and left sides in horizontal adduction were selected. Sixteen subjects from each group were allocated randomly. Interventions were applied on six occasions for 2 weeks, and the range of horizontal adduction was measured using an inclinometer at pre-and post-intervention. A 2x2 analysis of variance (intervention x time) was used to compare the effects of the two techniques. In the soft tissue massage group, the angle of horizontal adduction significantly increased compared with the cross-body stretch group. These findings indicate that the soft tissue massage of the posterior deltoid muscle is a more effective method to increase the fiexi-bility of the glenohumeral horizontal adduction.

Intra-Rater Test-Retest Reliability of Ely`s Test Using Smartphone in Patients With Lumbar Extension-Rotation Syndrome

( Kyue Nam Park ),( Sung Min Ha ),( Sung Dae Chung ),( Si Hyun Kim ),( Jun Hyeok Jang ) 한국전문물리치료학회 2012 한국전문물리치료학회지 Vol.19 No.4

Ely`s test is commonly used to assess rectus femoris muscle flexibility, however, a reliability limit of this test was demonstrated by a previous study. In this study, we present an alternative method using an application for a digital horizontal level in a smartphone (DHLS) to complement the reliability limit of Ely`s test. The aim of this study was to examine the reliability of Ely`s test using DHLS on the pelvis, compared to using visual observation (VO) of pelvic and hip motions. Nineteen patients with lumbar extension-rotation syndrome were recruited for this study. An examiner examined the rectus femoris flexibility (both pass/fail and goniometer scoring) through Ely`s test using both DHLS and VO. A retest session was completed two hours later for within-day reliability and seven days later for between-day intra-rater test-retest reliability. Results showed higher Kappa values for pass/fail scoring and higher intraclass correlation coefficient values for goniometer scoring in Ely`s test using DHLS, compared to using VO. Measurement error and Bland and Altman plots further demonstrated the degree of intra-rater variance during Ely`s test using DHLS in a clinical setting, compared to using VO. These results demonstrated that Ely`s test using DHLS showed acceptable reliability compared to using VO. Ely`s test using DHLS could be widely used for measuring the rectus femoris muscle flexibility in patients with lumbar extension-rotation syndrome, although the inter-rater reliability needs to be established first.

심부경부굴곡 운동 시 복근 수축이 표면경부굴곡근의 근활성도, 흉곽 거상, 두개경부굴곡 각도에 미치는 영향

박규남(Kyue-nam Park),원종혁(Jong-hyuck Won),이원휘(Won-hwee Lee),정성대(Sung-dae Chung),정도헌(Doh-heon Jung),오재섭(Jae-seop Oh) 한국전문물리치료학회 2009 한국전문물리치료학회지 Vol.16 No.3

The purpose of this study was to examine contraction of abdominal muscles on surface electromyographic (EMG) activity of superficial cervical flexors, rib cage elevation and angle of craniocervical flexion during deep cervical flexion exercise in supine position. Fifteen healthy subjects were participated for this study. All subjects performed deep cervical flexion exercise with two methods. The positions of two methods were no volitional contraction of abdominal muscles in hook-lying position with 45 degrees hip flexion (method 1) and 90 degrees hip and knee flexion with feet off floor for inducing abdominal muscle contraction (method 2). Surface EMG activities were recorded from five muscles (sternocleidmastoid, anterior scaleneus, recuts abdominis, external oblique, internal oblique). And distance of rib cage elevation and angle of craniocervical flexion were measured using a three dimensional motion analysis system. The EMG activitiy of each muscle was normalized to the value of reference voluntary contraction (%RVC). The EMG activities, distance of rib cage elevation, and angle of craniocervical were compared using a paired t-test between two methods. The results showed that the EMG activities of sternocleidmastoid and anterior scaleneus during deep cervical flexion exercise in method 2 were significantly decreased compared to method 1 (p<.05). Distance of rib cage elevation and angle of craniocervical flexion were significantly decreased in method 2 (p<.05). The findings of this study indicated that deep cervical flexion exercise with contraction of abdominal muscles could be an effective method to prevent substitute motion for rib cage elevation and contraction of superficial neck flexor muscles.

요통 환자를 대상으로 후중둔근 도수근력검사의 일치도 및 휴대용 근력계 측정 방법의 신뢰도 검사

박규남 ( Kyue Nam Park ),김현숙 ( Hyun Sook Kim ),최흥식 ( Houng Sik Choi ),이원휘 ( Won Hwee Lee ),하성민 ( Sung Min Ha ),김수정 ( Su Jung Kim ) 한국전문물리치료학회 2011 한국전문물리치료학회지 Vol.18 No.3

The purpose of this study was to assess the agreement of manual muscle testing (MMT) and test-retest reliability of a hand held dynamometer for the posterior gluteus medius muscle, with and without lumbar stabilization, using a pressure biofeedback unit for patients with low back pain. The pressure biofeedback unit was used to minimize the substitute motion of the lumbopelvic region during hip abduction in patients lying on their side. Fifteen patients with low back pain participated in this study. A tester determined the MMT grades of the posterior gluteus medius with and without the pressure biofeedback unit. Active hip abduction range of motion with an inclinometer and the strength of their posterior gluteus medius using a hand held dynamometer were measured with and without the pressure biofeedback unit in the MMT position. The agreement of the grade of muscle strength in the MMT, and intra-rater reliability of both the active hip abduction range of motion and the strength of posterior gluteus medius were analyzed using the weighted kappa and intraclass correlation coefficient (ICC), respectively. The agreement of MMT with the pressure biofeedback unit (weighted kappa=.92) was higher than the MMT (weighted kappa=.34) (p<.05). The inclinometer with pressure biofeedback unit measurement of the active hip abduction range of motion had an excellent intra-rater reliability (ICC=.90). Also, the hand held dynamometer with pressure biofeedback unit measure of strength of the posterior gluteus medius had a good intra-rater reliability (ICC=.85). Therefore, the test for muscle strength with pressure biofeedback unit will be a reliable method for the determination of the MMT grades or amount of posterior gluteus medius muscle strength and the measurement of the range of motion for hip abduction in patients with low back pain.

Ag계/Ni계 용가재를 이용한 STS 304L과 Inconel 600의 브레이징에 관한 연구

심규택(Kyue-Taek Shim),주기남(Kee-Nam Choo),조만순(Man-Soon Cho),박승재(Sung-Jae Park),김재훈(Jae-Hoon Kim) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11

This study was carried out to develop the joining technology by nicro-brazing of STS 304L tube and the thermocouple of Inconel 600 sheath, which is used as an instrument for high-temperature irradiation in HANARO. BAg-1 and BNi-7 were used as filler materials, and AMCO 446 was selected as flux in the brazing. For evaluation of solidity of the joining, the tensile strength and the micro hardness were measured. Both the brazings of STS 304L and Inconel using BAg-1 and BNi-7 filler materials were joined firmly. Some spot flaws were found at the joining places using BNi-7 filler material, however, they turned out not to affect the strength of the materials.

The Effects of the Position of Ipsilateral Neck Rotation on the Inhibition of the Upper Trapezius Muscle During Lower Trapezius Exercises

Se-in Park,Ji-yeong Chae,Hyeong-hwi Kim,Yu-geoung Cho,Kyue-nam Park 한국전문물리치료학회 2016 한국전문물리치료학회지 Vol.23 No.1

Background: The unilateral prone arm lift (UPAL) is commonly used to exercise the lower trapezius muscle. However, overactivation of the upper trapezius can induce pain during UPAL exercises in subjects with upper trapezius tenderness. Objects: The purpose of this study was to investigate the effects of position of ipsilateral neck rotation (INR) on the inhibition of upper trapezius muscle activity and the facilitation of the lower trapezius muscle when performing UPAL exercises. Methods: In total, 19 subjects with upper trapezius tenderness were recruited for the study. Electromyographic (EMG) activity was measured in the upper, middle, and lower trapezius muscles during UPAL with and without INR position. Wilcoxon signed-rank test was used to compare EMG activity in the trapezius muscles and the muscle ratios. Results: EMG activity in the upper trapezius muscles was decreased significantly in the INR condition compared to without the position with INR during UPAL exercises (p<.05). EMG activity in the middle and lower trapezius was not significantly different between the with and without INR conditions (p>.05). However, the ratio of lower to upper trapezius activation showed a significant increase in the INR condition compared to the without INR condition (p<.05), indicating greater lower trapezius activation relative to the upper trapezius in the INR position than in the without INR position. Conclusions: The EMG results obtained in this study suggest that the position with INR reduced overactivation in the upper trapezius and improved muscle imbalance during lower trapezius exercises in individuals with upper trapezius tenderness.

Evaluation of the Relationships Between Kellgren-Lawrence Radiographic Score and Knee Osteoarthritis-related Pain, Function, and Muscle Strength

Si-hyun Kim,Kyue-nam Park 한국전문물리치료학회 2019 한국전문물리치료학회지 Vol.26 No.2

Background: Knee osteoarthritis (OA) diagnosis using Kellgren-Lawrence scores is commonly used to help decision-making during assessment of the severity of OA with assessment of pain, function and muscle strength. The association between Kellgren-Lawrence scores and functional/clinical outcomes remains controversial in patients with knee OA. Objects: The purpose of this study was to examine the relationships between Kellgren-Lawrence scores and knee pain associated with OA, function during daily living and sports activities, quality of life, and knee muscle strength in patients with knee OA. Methods: We recruited 66 patients with tibiofemoral knee OA and determined knee joint Kellgren-Lawrence scores using standing anteroposterior radiographs. Self-reported knee pain, daily living function, sports/recreation function, and quality of life were measured using the knee injury and OA outcome score (KOOS). Knee extensors and flexors were assessed using a handheld dynamometer. We performed Spearman’s rank correlation analyses to evaluate the relationships between Kellgren-Lawrence and KOOS scores or muscle strength. Results: Kellgren-Lawrence scores were significantly negatively correlated with KOOS scores for knee pain, daily living function, sports/recreation function, and quality of life. Statistically significant negative correlations were found between Kellgren-Lawrence scores and knee extensor strength but not flexor strength. Conclusion: Higher Kellgren-Lawrence scores were associated with more severe knee pain and lower levels of function in daily living and sports/recreation, quality of life, and knee extensor strength in patients with knee OA. Therefore, we conclude that knee OA assessment via self-reported KOOS and knee extensor strength may be a cost-effective alternative to radiological exams.

Effect of Visual Biofeedback Training in Real Time on Buttock Pressure and Pelvic Tilting Angles of Hemiplegic Patients During Sitting

Min-su Cho,Kyue-nam Park,Sung-dae Choung,Oh-yun Kwon 한국전문물리치료학회 2017 한국전문물리치료학회지 Vol.24 No.2

Background: After a stroke, the control of the trunk muscle may be severely impaired. Due to the importance of trunk control in complex daily postures, the ability to adopt a correct sitting posture is considered a determinant of the recovery of independent function after a stroke. Objects: The purposes of this study were to compare differences in buttock pressure between the left and right sides of hemiplegic patients and differences in their pelvic tilting angles (sagittal and coronal planes) after sitting training with visual biofeedback (VBF) in real time. Methods: Twenty-two individuals with unilateral strokes (11 left-side and 11 right-side hemiplegic stroke patients) participated in this study. Buttock pressure was measured using a pressure mat, and pelvic angles were measured using a palpation meter. Results: The asymmetry of pressure between the right and left (first and third chamber) sides was significantly decreased after the VBF training. The measurements obtained using the palpation meter revealed a significant decrease in the pelvic angles pre- versus post-intervention. Conclusion: VBF training may be distribute a patient’s buttock pressure equally while in a sitting posture and increase the length of time a stroke patient can maintain a symmetrical sitting posture. It can also improve pelvic control while sitting in a neutral position.