• Journal of the Korean Society of Physical Medicine
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• v.7 no.4
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• pp.509-514
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• 2012

PURPOSE: This study aims to compare the effects of upper backbone joint mobilization and self-stretching exercise in the patients with chronic neck pain. METHODS: Thirty seven patients with chronic neck pain were divides into self stretching group(SSG, n=18) and mobilization group(MG, n=19). To assess the degree of neck pain, the visual analog scale (VAS) was utilized, and to measure the joint range of motion at the flexion-extension, it was compared and analyzed by using the cervical range of motion (CROM) device. RESULTS: The joint range of motion and visual analog scale of SSG and MG showed significant effects on both groups. In the comparison of groups, there was no significant difference, but it indicated effects on improving the pain and the range of joint motion in MG. CONCLUSION: According to the analysis, not only self-stretching exercise intervening for direct treatment but also upper backbone joint mobilization intervening for indirect treatment are effective to improve the pain and the range of motion.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.15 no.2
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• pp.69-79
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• 2009

Purpose : to investigate the effectiveness of joint mobilization and myofascial release on the neck pain and to provide the effective treatment. Methods : Twenty-two subjects with neck pain participated in the experiment. All subjects were randomly assigned to a joint mobilization group(n=11) or a myofascial release group(n=11). Both groups received treatment for 15 minutes four times during 2 weeks. Cervical range of motion(CROM) instrument was used to measure range of neck motion, and Algometer was used to measure tenderness. All measurements of the subjects were measured at pre-treatment and post-treatment. Results : 1. The range of neck right side-bending motion of the myofascial release group was significantly increased(P<0.05), and the range of neck extension, right side-bending, left side-bending, right rotation motion of the joint mobilization group was significantly increased(P<0.05). 2. There was no significant improvement of tenderness in both groups(p>0.05). Conclusion : These data suggest that joint mobilization is more effective against increasing the range of motion than myofascial release, but myofascial release is more beneficial to tenderness than joint mobilization although it does not have a significant difference in the tenderness because there was a little improvement.

• Physical Therapy Rehabilitation Science
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• v.11 no.4
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• pp.430-435
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• 2022

Objective: This study was conducted to investigate the effect of active movement with skin mobilization on range of motion, pain, and rating of perceived exertion in patients diagnosed with axillary web syndrome after axillary lymph node dissection. Design: A Case report Methods: It was performed on 7 patients diagnosed with axillary web syndrome after lymph node dissection. The subjects experienced a decrease in the range of joint motion and pain in movement when raising their arms in their daily lives, and complained of discomfort. The active range of motion, numeric rating scale, and modified Borg scale of shoulder joint flexion were measured, and the differences after active movement with skin mobilization were compared. Results: All subjects increased by 24.9 degree on average in active range of motion after active movement with skin mobilization intervention. There was no pain in the maximum range of joint motion measured before intervention, and rating of perceived exertion was significantly reduced. Conclusions: Active movement with skin mobilization can be a very useful way to help improve and treat axillary web syndrome, and it is recommended for improving the function and quality of life of axillary web syndrome patients. and It is also believed that it can be used steadily at home through the education of patients and families.

• Physical Therapy Rehabilitation Science
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• v.10 no.2
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• pp.225-234
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• 2021

Objective: We aimed to identify the effects of proprioceptive neuromuscular facilitation (PNF) stretching on pain, hip range of motion, and functional disability in patients with chronic low back pain. Design: Randomized controlled trial Methods: In total, 45 patients with chronic low back pain were randomly divided into a conventional stretching group (n=22) and a PNF stretching group (n=23). Both interventions were performed three times per week for 6 weeks. Assessments were made using the visual analog scale, Flexion-Abduction-External Rotation test, modified Thomas test, prone hip extension test, and Oswestry disability index before and after the 6-week intervention period. We conducted a paired t-test to compare the within-group findings before and after the intervention. An independent t-test was used to compare the between-group differences. The statistical significance level was set at α=0.05, for all variables. Results: Both groups showed significant improvements in pain, hip range of motion, and functional disability after the intervention (p<0.05). A significant difference was observed in pain, hip range of motion, and functional disability in patients belonging to the PNF stretching group (p<0.05). Conclusions: This study provides evidence that the application of PNF stretching can effectively reduce pain and improve hip range of motion and functional disability in patients with chronic low back pain.

• The Journal of Korean Physical Therapy
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• v.21 no.2
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• pp.71-77
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• 2009

Purpose: This study assessed the differences in the forward head posture (FHP), cervical range of motion, and headache clinical parameters in episodic tension-type headache (ETTH) subjects, chronic tension-type headache (CTTH) subjects, and healthy controls (university students). Methods: Fifteen CTTH subjects, 15 ETTH subjects and 15 controls without headache were examined. Side-view images of each group were taken in both the sitting and standing positions, in order to assess the FHP by measuring the craniovertebral angle. The CROM was used to measure the cervical range of motion. A headache diary was kept for 4 weeks to assess the headache intensity, frequency, and duration. Results: The craniovertebral angle was smaller, ie, there was a greater FHP, in the CTTH and ETTH subjects than in the healthy controls in both the sitting and standing positions (p<0.05). The CTTH and ETTH subjects showed a lower cervical range of motion than the healthy controls in the total range of motion as well as in the half-cycles (p<0.05). Conclusion: The increased FHP and decreased cervical range of motion might be a contributing factor in the initiation of tension-type headache.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.13 no.9
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• pp.4587-4605
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• 2019

High Efficiency Video Coding (HEVC) suffers from high computational complexity due to its quad-tree structure in motion estimation (ME). This paper exposes an adaptive search range decision algorithm for accelerating HEVC integer-pel ME on GPU which estimates the optimal search range (SR) using a MAP (Maximum A Posteriori) estimator. There are three main contributions; First, we define the motion feature as the standard deviation of motion vector difference values in a CTU. Second, a MAP estimator is proposed, which theoretically estimates the motion feature of the current CTU using the motion feature of a temporally adjacent CTU and its SR without any data dependency. Thus, the SR for the current CTU is parallelly determined. Finally, the values of the prior distribution and the likelihood for each discretized motion feature are computed in advance and stored at a look-up table to further save the computational complexity. Experimental results show in conventional HEVC test sequences that the proposed algorithm can achieves high average time reductions without any subjective quality loss as well as with little BD-bitrate increase.

• Journal of Korean Foot and Ankle Society
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• v.27 no.1
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• pp.12-16
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• 2023

Purpose: Postoperative exercise for acute Achilles tendon rupture is important for a patient's return to daily life and sports. On the other hand, the protocol requires considerable effort to educate patients and continuous checking. This study evaluated the outcome of a new simple and delayed rehabilitation protocol after Achilles tendon rupture repair. Materials and Methods: From July 2014 to November 2020, one hundred eighty-three patients were operated on by one surgeon. The exercise protocol was classified into two methods. One group (immediate protocol, control group) started immediate full weight bearing with a 20° plantar flexion range of motion from two days postoperatively. Ankle dorsiflexion was restricted to 0°. The other group (delayed protocol, case group) started full weight bearing with a controlled ankle motion boot from two weeks postoperatively. No range of motion exercise was allowed until six weeks postoperatively. Age, sex, body mass index, ankle range of motion, muscle power, time to return to previous physical activity, functional score, and complication rate were evaluated. The results of the two groups were compared using a Mann-Whitney test. Statistical significance was set as p<0.05. Results: The range of motion, double heel rising, and one-leg standing were achieved faster in the control group (p<0.05). However, single-heel rising, repeated single-heel rising, return to previous activity (work, run, and sport), and functional scores showed no statistical difference (p>0.05). Conclusion: Simple and delayed postoperative rehabilitation of acute Achilles tendon rupture without active range of motion exercises showed satisfactory functional results and a low complication rate.

• Journal of muscle and joint health
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• v.2 no.2
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• pp.147-159
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• 1995

Although there are many research studies on the effectiveness of heat and cold therapy for patients with arthritis at home or health care center, little attention has been paid to determining which therapy associates with season is effective for patients with chronic arthritis. The purpose of this study was to explore the effectiveness of heat and cold therapy associated with season for patients with arthritis. An experimental design using replications with intervention was employed. A total of 27 female arthritic patients were selected. Data were collected in summer and winter. Hot bag and ice bag were applied on each patient's knee for each 20 minutes alternatively. Joint pain, discomfort and range of motion were measured. Data were analyzed using paired t-test, and two-way ANOVA. The results of this study were ; 1. Joint pain Heat therapy was effective for pain relief, as compared with cold therapy. Heat therapy was more effective for pain relief in winter than in summer. Cold therapy was effective for pain relief, but there was no statistically significant difference of pain relief between summer and winter. 2. Discomfort Discomfort was decreased using heat therapy, whereas it was increased using cold therapy. Although discomfort was decreased using heat therapy in both summer and winter, there was no statistically significant difference of discomfort between summer and winter. Using cold therapy, discomfort was decreased in summer, but increased in winter. and season had effect on discomfort. 3. Range of motion Although there was no statistically significant difference between the range of motion for both heat and cold therapy, range of motion was Increased using both heat and cold therapy. In winter, range of motion was increased rather than in summer by using heat therapy. Using cold therapy, The range of motion was decreased in both summer and winter. There was no stastistically significant difference of range of motion between heat therapy and cold therapy. Furthermore, there was no statistically significant difference of range of motion between summer and winter. In conclusion, both heat and cold therapy were effective for pain relief, discomfort, and range of motion, especially heat therapy. Heat therapy was effective for pain relief, discomfort, and range of motion in winter, as compared with summer. Cold therapy, however, was effective for only pain relief in winter, The findings suggest the use of heat therapy for patients with arthritis especially in winter.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.28 no.2C
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• pp.141-146
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• 2003

In this paper, we propose an adaptive search range decision algorithm for motion vector estimation in video coding. The performance of general motion estimation method in video coding mechanism is evaluated with respect to the motion vector accuracy and the complexity, which is trade-off. The proposed algorithm that plays as a role of pre-processing for motion vector estimation determines the motion search range by the local statistics of motion vector of neighboring blocks, resulting in more than 60(%) reduction of the computational cost without the loss of visual quality. Experimental results show the capability of the proposed algorithm.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2022.06a
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• pp.182-183
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• 2022

The large data volume of light field (LF) image has motivated much research on how to compress the data volume more efficiently. One of the approaches is to compress LF images after representing them in the form of pseudo video sequence. In this way, the pseudo temporal redundancy between views can be exploited by motion estimation and compensation. Based on our observation that images obtained by LF cameras have small range of disparity values between adjacent views, we propose to limit the motion search range to reduce the time complexity of motion estimation. Our experimental results show that a smaller motion search range reduces the encoding time while not affecting the bitrate of H.266/VVC much.