• 조명전기설비학회논문지
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• 제27권8호
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• pp.42-50
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• 2013

The reactionary responses to control human standing dynamics were estimated under the assumption that postural complexity mainly occurs in the mid-sagittal plane. During the experiment, the subject was exposed to continuous horizontal perturbation. The ankle and hip joint rotations of the subject mainly contributed to maintaining standing postural control. The designed mobile platform generated anterior/posterior (AP) motion. Non-predictive random translation was used as input for the system. The mean acceleration generated by the platform was measured as $0.44m/s^2$. The measured data were analyzed in the frequency domain by the coherence function and the frequency response function to estimate its dynamic responses. The significant correlation found between the input and output of the postural control system. The frequency response function revealed prominent resonant peaks within its frequency spectrum and magnitude. Subjects behaved as a non-rigid two link inverted pendulum. The analyzed data are consistent with the outcome hypothesized for this study.

• 대한가정학회지
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• 제20권3호
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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.

• 한국정밀공학회지
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• 제30권2호
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• pp.171-176
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• 2013

In this research a Self-Standable mobile Robot with standing arms based on an Wheeled Inverted Pendulum is developed. Almost existing mobile robots have wide planar shape that is statistically stable and it is sometimes hard for them to run or steer on a narrow road. A Wheeled Inverted Pendulum based mobile robot has vertical shape that is upright-running and easily steering on a narrow road. It, however, requires actively balancing control and never restores the shape once it falls down. This research develops a Self-Standable mobile robot which equips standing arms and is able to change its chassis' posture freely from planar to vertical shape or vice versa.

• 융합신호처리학회논문지
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• 제24권1호
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• pp.15-20
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• 2023

일반적으로 잘못된 앉은 자세를 장시간 유지하는 것은 척추에 나쁜 영향을 미치는 것으로 널리 알려져 있다. 최근 여러 연구자들이 잘못된 앉은 자세와 척추질환의 인과관계에 관심을 두고 있으며, 척추질환 예방을 위해 앉거나 서는 자세의 변화를 정밀하게 측정할 수 있는 방법을 연구해왔다. 우리는 과거 연구에서 실시간 체위 변환 측정이 가능한 센서 디바이스를 개발하고 운동량 계산 알고리즘을 적용하여 실시간 자세 전환 측정 정확도를 향상시켰으며, 체위 변환 측정 센서의 정확도를 검증하였다. 본 연구에서는 좌압 측정을 통해 체중심의 변화를 고려한 자세 측정 및 분석 장치를 개발하였으며, 개발된 센서는 사용자의 시각적 피드백을 개선하여 자세 교정 훈련 정확도를 높이는 보조 도구로의 활용 가능성을 확인하였다.

• 한국의류학회지
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• 제17권2호
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• pp.197-206
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• 1993

We studied relation between the clothing pressure applied by foundations(waist nipper, girdle, body suit) on the waist of bodies and muscular activity, feeling of tightness. The main results were summerized as follows ; 1. Clothing pressure applied by foundations was high in order of girdle>waist nipper>body suit, also clothing pressure was higher back than front and side, sitting on the chair than standing posture, ventral flection than repose. Individual differences, even if size of body was equal, were shown in clothing pressure applied by foundations with subcutaneous fat's amount in measuring region. 2. The muscular activity of rectus abdominis than obliquus externus abdominis was more affected by foundations in all kinds of postures and motions. Amplitude of electromyogram was high sitting on the chair than standing posture, but there was little difference with motion variation. The wearing girdle strongly affected on the muscular activities of rectus abdominis and obliquus externus abdominis as compared with waist nipper and body suit. 3. The value for feeling of tightness by wearing waist nipper was higher than girdle and body suit. Also the case when sitting on the chair and ventral flection, the value for feeling of tightness was high. When the foundations were on the body, most tightened on the region of the body was anterior abdominal region.

• 대한인간공학회지
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• 제32권6호
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• pp.549-555
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• 2013

Objective: The purpose of this study was to compare the performance of drilling on the ceiling in three different postures (standing, standing on the ladder and supine on the height adjusted board) and the subjective responses of perceived discomfort after the drilling. Background: Overhead work has been identified as a major occupational risk factor and has been a main research subject. Method: Ten young participants drilled 20 holes at the pre-marked places on the ceiling in three different postures. The drilling duration, resting and drilling heart rate were measured. The levels of perceived discomfort at neck, shoulder, elbow, hand and overall body were asked at the end of each task. Results: The working posture affected the heart rate after the drilling. Perceived discomfort in the neck decreased significantly in supine compared to drilling on the ladder. Conclusion: The results of this study suggest that drilling in supine can be an alternative way to reduce the drilling heart rate and the level of perceived discomfort in the neck without sacrificing the productivity. Application: The results of this study would be considered when drilling on the ceiling is required in construction workers.

• PNF and Movement
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• 제7권4호
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• pp.37-43
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• 2009

Purpose : The purpose of this study was to evaluate the effect of core stability training at deep abdominal muscle for balance control of hemiplegic patient. Method : The subject of this study was a 47-year-old man with right hemiplegia. He was treated five times a week for three weeks with core stability training at deep abdominal muscles. Evaluation tool was used Functional reach test(FRT), timed up and go test(TUG) and one leg standing for stroke patients. Result : The FRT distance increase, TUG time decrease, one leg standing time increase core stability training at deep abdominal muscles for right hemiplegia improved was the ability for maintain balance. Posture and control of trunk stability are changing posture, and so which showed significant improve of total balance control. Conclusion : The result of this study showed that core stability training at deep abdominal muscles is an effective treatment for balance control. Therefore, it could be considered as a treatment method in the rehabilitation of stroke patient with poor postural control and imbalance, although further studies are needed.

• PNF and Movement
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• 제11권1호
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• pp.7-16
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• 2013

Purpose : The purpose of this study is to analyze the effect of the proprioceptive exercise program on balance performance in order to the suggest hemiplegic patients the therapeutic intervention. Methods : In this study, Proprioceptive exercise program was applied to 11 hemiplegic patients for 6 weeks as follows: First of all, hemi leg flexion-extension pattern was applied in a supine position. Secondly, alternated leg flexion pattern was applied in a standing posture with one hand support on the unstable platform. Thirdly, rhythmic stabilization techniques were applied in a standing posture on the unstable platform. Results : Significant differences were observed the chronic low back pain patient for VAS, BBS. Chronic low back pain patient improved all test. The results of this study were summarized as follows: 1. After intervention, there was a statistically significant change in the dynamic balance (FSST, TUG, FRT) performance(p<.05). 2. After intervention, there was also a statistically significant change in the static balance (FICSIT-4) performance(p<.05). Conclusion : The result of the study suggests that muscle strength exercise by the intervention of proprioceptive exercise program improves the hemiplegic patients' static and dynamic balance performance.

• 한국임상수의학회지
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• 제27권4호
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• pp.336-342
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• 2010

본 연구는 tiletamine/zolazepam 대조군과 대조군에 benzodiazepine의 길항제인 flumazenil을 투여한 실험군의 마취 효과와 혈액생화학, Vital sign, 마취회복시간에 대하여 비교하였다. 건강한 6마리의 개들(평균 체중 $5.2{\pm}2.2$)이 실험에 이용 되었다. Tiletamine/zolazepam 을 투여하였고 20분 뒤에 benzodiazepine의 길항제인 flumazenil 0.1 mg을 투여하였다. 마취효과 (Sedation, analgesia, muscle relaxation, posture and auditory response score), Vital sign (심박수, 호흡수, 체온), 혈액 생화학 (GLU, TP, ALT, AST) 검사들이 두 그룹에서 tiletamine/zolazepam 투여전, 투여후 1, 5, 20, 30, 60 그리고 90분에 실시되었다. 또한 마취회복시간 (head up, sternal recumbency, standing and walking times)은 부동화 상태에서 각 행동양식 이 보이는 시간까지 측정되었다. Analgesia score는 투여 후 20분과 30분에, posture score는 투여 후 30분에 그리고 auditory response score는 투여 후 1분과 20분에 TZF그룹이 TZ그룹보다 유의하게 낮아 benzodiazepine에 대한 flumazenil의 길항효과를 나타냈다. 평균 심박수는 두 그룹 모두 투여 후 1분부터 급상승하여 유의하게 정상 심박수 보다 높았다. 평균 호흡수는 TZF그룹이 TZ그룹보다 유의하지 않았으나 높은 호흡수를 보였다. 결론적으로 개에서 flumazenil의 투여는 tiletamine/zolazepam에 대한 길항작용을 나타내었다. 마취로 부터의 회복에 있어서, flumazenil은 sternal recumbency, standing 및 walking times를 단축시켰다.

• International journal of advanced smart convergence
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• 제3권1호
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• pp.15-19
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• 2014

This study was compared the variation system of body posture condition for stability by the posture. We used a model of bio parameter on the basis of the move state in the standing posture. We compared the sway movement derived from average of the physical sensing condition. Vision condition of variation average (Vi-${\sigma}_{AVG-AVG}$) was verified slightly greater at $13.746{\pm}4.05$ unit. Vestibular condition of variation average (Ve-${\sigma}_{AVG-AVG}$) was verified slightly larger at $7.829{\pm}1.071$ unit. Somatosensory condition of variation average (So-${\sigma}_{AVG-AVG}$) was verified slightly smaller at $2.592{\pm}0.538$ unit. CNS condition of variation average (C-${\sigma}_{AVG-AVG}$) was verified slightly larger at $0.46{\pm}0.105$ unit. The valuation system will be to deduce the model of body management with falling and stroke and all that sort of things. There will be to infer a data algorithm and the evaluation of processing system.