• Journal of the Korean Society of Industry Convergence
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• v.26 no.1
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• pp.113-119
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• 2023

In this paper, we propose an optimization of a pose estimation deep learning model for recognition of abnormal behavior in unmanned stores using radio frequencies. The radio frequency use millimeter wave in the 30 GHz to 300 GHz band. Due to the short wavelength and strong straightness, it is a frequency with less grayness and less interference due to radio absorption on the object. A millimeter wave radar is used to solve the problem of personal information infringement that may occur in conventional CCTV image-based pose estimation. Deep learning-based pose estimation models generally use convolution neural networks. The convolution neural network is a combination of convolution layers and pooling layers of different types, and there are many cases of convolution filter size, number, and convolution operations, and more cases of combining components. Therefore, it is difficult to find the structure and components of the optimal posture estimation model for input data. Compared with conventional millimeter wave-based posture estimation studies, it is possible to explore the structure and components of the optimal posture estimation model for input data using genetic algorithms, and the performance of optimizing the proposed posture estimation model is excellent. Data are collected for actual unmanned stores, and point cloud data and three-dimensional keypoint information of Kinect Azure are collected using millimeter wave radar for collapse and property damage occurring in unmanned stores. As a result of the experiment, it was confirmed that the error was moored compared to the conventional posture estimation model.

• Journal of Korean Physical Therapy Science
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• v.6 no.2
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• pp.989-995
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• 1999

Musclee spasticity of Cerebral Palsy children brings abnormal posture and becomes delayed for Normal Motor Development. The objective of this study is to discover the effects of physical therapy on subject paitient' s posture and Normal Motor Development after Selective Posterior rhizotomy. The subject patients were 280 children who had physical therapy for about 4 to 6 months after Selective Posterior Rhizotomy. The sum of points both pre and post operation by using Locomotion stage of Vojta and Arens's grading of Gross Motor Function were compared and evaluated. Among total of 280 Cerebral Palsy children who had 4 to 6 months of physical therapy ; total of 206 children(197 by grade 1, 9 by grade 2) has increased out of 218 spasticity type children, and totoal of 42 has increased (by gradel) out of 48 Athetoid type, and total of 8 jas increased (by grade 1) out of 14 Mixed type Physical therapy for Cerebral Palsy children after Selective Posterior Rhizotomy has enhanced Normal Motor Development and their posture. The therapy also has shown the results of shortening the therapy period and better treatment results.

• The Journal of Korean Physical Therapy
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• v.16 no.2
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• pp.17-21
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• 2004

We need to study about lower extremity alignment because the structure dictates the function of lower extremity. Through lower extremity alignment assessment in static posture, we recognize abnormal structural conditions which could affect dynamic motion such as gait. To evaluate of lower extremity alignment provide so many useful information, but method of measurement is so limited. Therefore, this review will assist understanding for measurement of lower extremity alignment in static posture. From now on study about the objective measurement method must be achieved much more in physical therapy.

• Journal of Korean Medicine Rehabilitation
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• v.23 no.4
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• pp.117-128
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• 2013

Objectives The purpose of this study is analyzing internal research trends of abnormal postures and providing problems of researches forward. Methods 6 Korean databases were searched for articles of abnormal postures, irrespective of publication year and 30 research were systematically reviewed. An analytical method such as descriptive statistics and an acutal number and percentage was used. Results We collected 30 studies. 16 studies were published within the last four years. 2012 saw 7 studies, the highest number of studies. Clinical research is the major research method. 26 studies were clinical research. The studies can be categorized according to the characteristic of the research content such as research of related factors or physical characteristics, research of treatment or programs, etc. 16 studies were about research of treatment or programs, the most number of studies. 11 studies were about research of related factors or physical characteristics, and 3 studies were about other issues. Conclusions Since the connection among postural abnormality, pain, and musculoskeletal system disorder has been raising, it is important to conduct a continued, methodical study.

• Journal of the Korean Home Economics Association
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• v.20 no.3
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• pp.1-8
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• 1982

In this study, we attempted to make an original pattern of clothing for an abnormal type of figure, especially for the type of kyphosis. We measured the curvature of the spine of a woman with kyphosis with a Martin measuring instrument and a silhouetter in the following ways. First, we counted the rate of shrinkage of the standard lines drawn on the surface of the body according as the body moved. Secondly, placing the front and back darts, the front and back shoulder darts and the side darts according to“Munhwa”pattern, we made cubic cuttings of four moving postures as well as the standing one. Thirdly, we superposed the developed patterns of the standing and the moving postures, measuring the position change and the amount to the change of the darts, and compared them. The results are as follows: 1) In the developed pattern of a cubic cutting of the basic pattern and the standing posture, the neckhole became larger than that of the basic pattern, and the waist line was lowered than that of the basic pattern because the center back line was shortened due to the curved backbone.

• The Journal of Korean Physical Therapy
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• v.16 no.2
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• pp.116-127
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• 2004

The purpose of this study was to determine the effect of shoe lift of the affected limb in subjects with hemiplegia. The subjects of this study were 18 post-stroke hemiplegics. For the study, insole of the paretic side was lifted 10 mm higher, and static weight bearing was measured before and after the lift application. For the measurement of carry-over effect of lift, we got data of those three items prior to and 3 weeks after lift application and 3 days after removal of the lift. Static weight bearing was significantly increased both just after and continuous application of lift for 3 weeks than before. According to this study, lift applied to the shoe of the paretic limb was effective in inducing static weight bearing in the paretic limb. This study suggests that symmetry, induced by shoe lift applied to the paretic limb, could help correct abnormal posture that would be caused in standing and prevent development of abnormal muscle tone in subjects with hemiplegia caused by unilateral stroke.

• Physical Therapy Korea
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• v.8 no.1
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• pp.59-75
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• 2001

The purposes of this study were to investigate risk factors of low back pain in civil airmen and to use this information as basis for the back rehabilitation. Subjects of this study were randomly selected 276 civil airmen who had been employed at four airports in Seoul. These data were analyzed by $X^2$ test, t-test, ANOVA, and multiple logistic regression using SAS. The results were as follows: 1) The prevalence of low back pain among 276 civil airmen was 64.9%. 2) The most common cause of low back pain was load lifting (stewardess), long sitting (aircrew A), and long sitting plus training (aircrew B). 3) There were no statistically significant associations among age, height, body weight, and low back pain. 4) No statistically significant relationships were found among the average monthly working time, total working time, average monthly rest time, working year and low back pain. 5) There was statistically significant relation ship between abnormal posture and low back pain (p<.01). 6) There was statistically significant relation ship between fatigue and low back pain among stewardess and aircrew B. 7) There was a statistically significant relationship between job satisfaction and job-related stress (p<.05). 8) In stewardess, higher satisfaction score was associated with less likelihood of low back pain (odds ratio = .80). The results of this study indicate that civil airmen developed chronicity of low back pain due to unfit seat, poor habitual posture, fatigue symptom, and stress or other risk factors. Therefore, there is a need to improve the working environment for the prevention of posture-related low back pain.

• Physical Therapy Korea
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• v.27 no.1
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• pp.45-52
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• 2020

Background: A backpack is available equipment for moving some objects. Most studies have found that the appropriate weight limit of backpack for students is between 10% to 15% of their body weight (BW). However, Some students should carry a backpack heavier than 15% of BW. Therefore, It is associated with abnormal shoulder and neck posture on students. Objects: This study tested the effects that various amounts of weight carried by university students in their backpacks had on their cervical posture and electromyography of neck muscle. Methods: The subjects consisted of 12 students (6 male, 6 female) in university. There were three loading conditions tested: no backpack, a backpack that weighed 10% and 15% of the student's BW. The dependent variables were the craniovertebral angle (tragus to C7) and the neck muscle activities (sternocleidomastoid, upper trapezius). All 12 subjects were asked to walk while wearing a backpack for 5 minutes and were then instructed to rest for 2 minutes. Results: When assessing the craniovertebral angle, the results of this study were significantly decreased in the order of 0%, 10%, and 15%. And then, there were significantly increased electromyography of neck muscles that comparison of the weight of 10% and 15% on 0%. It was found that as the weight of the backpack increased, the craniovertebral angle decreased (p < 0.05) and the muscle activities increased (upper trapezius p = 0.012, sternocleidomastoid p = 0.013). Conclusion: Our study recommended that some students shouldn't carry on over the 15% backpack of own weight, and also they should distribute backpack load to equal on body for optimal posture.

• Journal of Korean Medicine Rehabilitation
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• v.24 no.3
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• pp.149-155
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• 2014

Objectives This study was designed to investigate the correlation between the difference of pelvic height and difference of gait balance. Methods 62 cases of patients who received treatment from January 2011 to March 2014 for abnormal postures were analyzed. Their difference of pelvic height were estimated by whole spine X-ray analysis and gait balance were estimated by Treadmill Gait Analysis system. The data were analyzed to find out correlation between difference of pelvic height and difference of gait balance, and correlation between the position of pelvic tilt and gait balance higher side. Pearson correlation and Chi-square analysis were used. Results Pelvic height heigher side were more left than right side, and gait balance higher side were also more left than right side. Difference of pelvic height and difference of gait balance had a positive linear relationship, but there was no significant correlation. The position of pelvic tilt had significant correlation with gait balance higher side. Conclusions The position of pelvic tilt had significant correlation with gait balance higher side and difference of pelvic height had no significant correlation with difference of gait balance.

• Journal of the Korean Society of Physical Medicine
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• v.8 no.3
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• pp.337-342
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• 2013

PURPOSE: The Unilateral neglect is characterized by difficulty shifting attention to the side of space opposite the brain lesion and frequently reducing use of contralesional extremities. This study was to identify whether the visual deprivation was responsible for head position on unilateral neglect patient after stroke. METHODS: A patient with left middle cerebral artery infarction participated in the study. We assessed neglect using line bisection and star cancellation test. Patient was instructed to maintain correct alignment of trunk and head in a sit position. We evaluated degree of head lateral tilting and rotation. Then, patient was blocked visual input. Also, we evaluated head position in the same way. RESULTS: He scored 3 points in the line bisection test and 9 points star cancellation test. In postural evaluation, he had deviated posture such as lateral head tilting and rotation. After visual cue deprivation, patient showed different head position which was decreased degree of head tilting and rotation. CONCLUSION: For vertical body orientation, it was used multiple sensory references including the vestibular, somatosensory, and visual system. This finding suggested that abnormal posture of neglect patient could be related to the visual input. It has important clinical implications in terms of understanding the neglect.