• 한국엔터테인먼트산업학회논문지
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• 제14권6호
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• pp.221-230
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• 2020

본 연구는 진동자극 저항운동이 허리통증 경험자의 균형 및 보행에 미치는 영향을 연구하였다. 30명의 히리통증 경험이 있는 성인 대학생을 대상으로 8 Hz 진동자극 저항운동(n=10), 30 Hz 진동자극 저항운동(n=10), 허리 안정화운동(n=10)으로 무작위로 나누었다. 각 그룹의 중재는 6주동안 주 3회, 1회에 30분을 적용하였다. 실험 전에 정적균형과 보행패턴을 측정하였고, 6주 후에 실험전과 동일한 방법으로 측정하였다. 연구결과 세 그룹 모두에서 운동전과 후의 시간에 따른 정적균형, 디딤기율, 흔듦기율, 한걸음 길이, 한발짝률의 변화는 통계적으로 유의한 차이가 있었다(p<.05). 허리 안정화운동이 정적균형과 디딤기율에서는 그룹 간의 유의한 차이가 있었고(p<.05), 흔듦기율 및 한걸음 길이와 한발짝률은 그룹 간의 차이가 없었다. 결론적으로 진동자극 저항운동이 근수축 유발 기전에 의해 다리근육의 근력을 강화하였고, 강화된 다리 근력은 균형능력에 긍정적인 영향을 미쳤으며, 향상된 균형능력은 신체가 움직이는 동안 안정적으로 자세를 조절할 수 있게 하여 보행능력의 긍정적 측면에 영향을 미친 것으로 판단된다.

• 수산해양기술연구
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• 제48권1호
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• pp.20-28
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• 2012

The monofilament with 0.304mm of diameter was produced using a polybutylene succinate (PBS) resin, and a gill net was made by it. We investigated the impact of heat setting temperature on the mechanical properties, knot state and height of gill net. Heat treatment was carried out using the high pressure steam machine for 20 minutes at temperature of $55^{\circ}C$, $60^{\circ}C$, $70^{\circ}C$ and $75^{\circ}C$. Before heat treatment, the strength and elongation of PBS monofilament were estimated to be $48.1kg/mm^2$, 23.8% at unknot, $37.6kg/mm^2$, 18.8% at single knot, $26.6kg/mm^2$, 22.9% at double knot in dry condition, respectively. The strength and elongation of PBS monofilament with double knot were decreased as heat setting temperature increased, and the decreasing rate of strength was showed to be higher than that of elongation. It was not found any differences in strength and elongation of PBS monofilament yarn with double knot at the $65^{\circ}C$ and $70^{\circ}C$ of heat setting temperature by 5% significance of T-test, but there was a significant difference at the $70^{\circ}C$ and $75^{\circ}C$ of heat setting temperature. The net's height and length from leg to leg appeared no differences at the $70^{\circ}C$ and $75^{\circ}C$ of heat setting temperature. In results, it was investigated that the PBS monofilament gill net with the maximized physical properties could be manufactured at $70^{\circ}C$ of heat setting temperature using a high pressure steam machine for 20 minutes.

• 한방재활의학과학회지
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• 제27권3호
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• pp.125-136
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• 2017

Objectives The present study was designed to analyze the posture pattern of healthy right-handed male and to investigate the effect of Chuna treatment. Methods Twenty healthy right-handed male were selected in this study. Body posture was measured by Body $Style^{(R)}$. After that, subjects received Chuna treatment on lumbar and pelvis area. Finally, the 2nd measurement was carried out. Results In shoulder height, left shoulder was higher than right one. In pelvic height, right iliac crest was higher than left, followed by longer right leg than left. In lower limb angle suggesting valgus or varus knee. In height of scapula inferior angle, right seemed higher than left. After the Chuna treatment, shoulder height, pelvic height, and leg length difference showed significant improvement. Other variables showed improvement but it was not significant. Conclusions These results suggest that right-handed male have some characteristic posture pattern because of their daily life habits, and Chuna treatment can be effective in correcting bad posture.

• 대한물리의학회지
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• 제12권3호
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• pp.99-104
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• 2017

PURPOSE: Gait disturbances in patients with hemiplegic stroke involve asymmetry of stance time. Step box training is used to supplement the limitations of stair walking training and increasing the torque value of the paralyzed lower leg's strength. This study aimed to investigate whether step-up training on unstable support could change walking ability in patients with chronic stroke. METHODS: Thirty stroke patients were randomly assigned to the step-up training group (experimental group), that performed training on an unstable surface, and the control group, that performed training on a stable surface. Walking speed, step length, and cadence were measured before and after training. Paired t-tests were used to compare pre- and post-intervention data, while the independent samples t-test was used to determine intergroup differences. Values of p < .05 were considered statistically significant. RESULTS: There was a significant difference in walking ability before versus after the intervention in both groups, although the experimental group showed greater differences than the control group (walking velocity by 8.1%; step length of the non-paralyzed side by 6.9%, respectively; p<.05). CONCLUSION: Step-up training might be more effective on an unstable surface than on a stable surface for increasing walking speed and step length of the non-paralyzed side.

• Journal of Acupuncture Research
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• 제20권6호
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• pp.45-62
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• 2003

Objective: This study was designed to investigate effects of Nokyongsageunhwan and Nokyongsageunhwan aquapuncuture on body weight, body length, intellectual development Methods: We observed body weight, body length, intellectual development after feeding Nokyongsageunhwan and Nokyongsageunhwan aquapuncuture for thirty three days, and mRNA expressions of GHRF, Somatostatin, IGF-1, NPY were analyzed by RT-PCR method. Results: The results were summarized as follows. 1. Body length was significantly increased in Nokyongsageunhwan herbal acupuncture group compared to normal group and normal saline injection group on 4th week, 2. Lower part of hind leg length was significantly increased in Nokyongsageunhwan oral administration group compared to normal group on 3rd week, and it was significantly increased in Nokyongsageunhwan herbal acupuncture group and Nokyongsageunhwan oral administration group compared to that of normal group on 4th week. 3. As results of observing memory aquisition using Morris water maze system, there was significantly difference in Nokyongsageunhwan oral administration group compared to that of normal group on 4th week. 4. As results of observing retention using Morris water maze system, staying time was significantly increased in Nokyongsageunhwan herbal acupuncture group compared to that of normal group. 5. The somatostatin mRNA expression in the hypothalamus was significantly decreased in Nokyongsageunhwan oral administration group compared to that of normal group. 6. The IGF-1 mRNA expression in the hypothalamus is significantly increased in Nokyongsageunhwan herbal acupuncture group and Nokyongsageunhwan oral administration group compared to that of normal group. 7. The NPY mRNA expression in the hypothalamus was significantly increased in Nokyongsageunhwan oral administration group compared to that of normal group, and it was increased in Nokyongsageunhwan herbal acupuncture group compared to that of normal group, but there was no significant difference. Conclusions: According to the above results, it appears that Nokyongsageunhwan oral administration and Nokyongsageunhwan herbal acupuncture on acupoint GB34 and GB39 showed effects on the growth and the intellectual development of rats.

• The Journal of Korean Physical Therapy
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• 제26권5호
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• pp.296-301
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• 2014

Purpose: The purpose of this study was to investigate the effect of strengthening exercises of hip abductors on muscle strength and ambulation for patients with ACL reconstruction. Methods: The subjects were randomly assigned to the intervention group (general exercise plus strengthening of hip abductors) or the control group (general exercise without the strengthening of hip abductors). Both groups participated in a six-week exercise protocol after the surgery for ACL reconstruction. The knee strength test (quadriceps, hamstring, hip abductor) and gait analysis were performed in pretest and post-test. Results: Muscle strength was measured using the Biodex system III model (Biodex Medical System, Inc, NY, US). The results showed no significant difference in knee strength (quadriceps, hamstring) between the two groups (p>0.05), however, there was a significant difference in hip abductors (p<0.05). The gait analysis was measured with Gaitrite system (CIR System Inc, US). Results of comparison between groups showed a significant increase in the step length of both groups. (p<0.05), and there was a significant difference in the affected leg of the intervention group(p<0.05). Conclusion: Exercise of hip abductors for patients with ACL reconstruction provides significant benefits with respect to improvement of muscle strength in hip abductors, increasing the stride. This result indicates that a training program designed for ACL reconstruction patients should include strengthening of the hip abductor. We think that further study is needed to determine the relationship of hip muscles and knee joint for patients with ACL reconstruction.

• 한국의류학회지
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• 제34권1호
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• pp.153-166
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• 2010

The study analyzes the lower-trunk sizes of 7-12 year old elementary school boys and compares sizes with boys, juniors, and men for analyzing and image fit. For the study, the data of SizeKorea (2004) was analyzed. Waist, hip, and the ratio of hip-thickness to hip-width were significantly different between age groups as well as between boys, juniors, and men. In the same height group, over 145cm boys had bigger waist than juniors and smaller waists than men. Therefore, the difference of waist size and the length of leg could cause the dissatisfaction of the pant fit when tall and plump boys chose a corresponding pants size to individual height or waist. The hip-thickness of body and pants patterns were compared in the analysis of the ease of hip-thickness. Tall and plump boys will feel discomfort in the crotch area because of the insufficiency of the hip-thickness of pants. Therefore, the amount of crotch extension of individual pants should be calculated by hip size instead of using the fixed amount. The reference sizes for discriminative pants for tall and plump boys were analyzed for a better fit.

• 한국전문물리치료학회지
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• 제9권1호
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• pp.1-15
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• 2002

The purpose of this study was to compare the balance and gait between fallers and non-fallers in elderly. A brief questionnaire was used to obtain the fall history. Twenty-seven women subjects were evaluated in this study. Eleven subjects and a mean age of 84.5 years (SD=4.6) were designated as the faller group. Sixteen subjects and a mean age of 80.3 years (SD=5.3) were designated as the non-faller group. The fall-related factors (mental status, balance, range of motion and muscle strength of lower extremity, sensation of foot, and cadence, walking velocity, stride length) were compared between faller group and non-faller group and measured. The results showed that faller group had significantly less range of motion of the hip flexion and knee extension, and strength of the knee extensor and ankle dorsiflexor and plantar flexor than non-faller group. The scores of the Functional reach test and One leg standing were significantly less in faller group than in non-faller group. Faller group showed less walking velocity and stride length compared to non-faller group. However, there was no significant difference in cadence during comfortable waking and fast walking between two groups. There were no significant differences in pressure, position sensory between two groups. These results suggest that exercise for improving the flexibility, muscle strength of the lower extremity and balance may be useful strategies to prevent fall in elderly. Further studies are needed to identify which specific factors are related to fall in the elderly population.

• PNF and Movement
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• 제18권2호
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• pp.183-194
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• 2020

Purpose: Functional ankle instability (FAI) causes tension in the joints, ligaments, and tendons, and the impact on visual and vestibular organs leads to imbalance. This study compared the effects of a traditional balance training program to virtual reality training to improve FAI. Methods: Twenty-four participants with FAI (CAIT score < 24) were assigned to a virtual reality training group (n = 13) and a traditional balance training group (n = 11). Both groups pursued their respective training program for four weeks. After a ten-minute warm-up, participants completed a 30-minute training session, three times per week. The traditional balance training group underwent static and dynamic training using a balance board and a stability trainer pad while the virtual reality group underwent balance training using a virtual reality program. Biorescue was used to measure changes in the speed and length of center of pressure (COP) for single-leg stance pre- and post-training. Results: The speed and length of COP improved significantly in both groups after training as compared to before (p < 0.05). However, there were no significant differences in these outcomes between the virtual reality training group and the traditional balance training group (p>0.05). Conclusion: The study findings confirm the effectiveness of both virtual reality training and traditional balance training in reducing ankle instability, with no difference in treatment effects.

• 복식문화연구
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• 제19권4호
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• pp.820-835
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• 2011

The purpose of this study is to provide a basic pattern to assist in the development of formal pants that reflect the physical characteristics of women with lower-body obesity. The subjects selected for this study were women in their 20s and 30s with a Rohrer index of 1.6 or higher, a waist circumference 78.5cm to 83.5cm, and a lower drop of at least 18cm. The experimental pants patterns were developed by varying the waist line position, the waist ease, the ease in the hip area, the crotch length, the front and rear crotch width, the leg width, and the total length. Data analysis was performed using the SPSS statistics program(version 18.0). To verify the difference, this study used a variance analysis and Duncan's test. The conclusions drawn by the study are as follows. To reflect the form element of an abdomen with fatty deposits, the waist circumference should have an ease of 2cm. The front waist result was W/4+0.5cm+0.75cm and the rear waist result was W/4-0.5cm+0.25cm. The hip circumference showed a total ease of 4.5cm. The front hip result was H/4+0.75cm and the rear hip result was H/4+1.5cm. The crotch width set to H/16-1cm and the applied rear crotch width was H/16+2cm. The rear hip area was given more ease to reflect the protrusion of the hip. Along the line extending from the knee area to the crotch line, the outer seam line was designed with a gradual S-shaped curve to accommodate the protrusion from the maximum thigh width.