• Advances in nano research
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• 제14권3호
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• pp.247-259
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• 2023

Muscle strength and hypertrophy are equivalent when low-intensity resistance exercise is paired with blood flow restriction. This paper deals with the impact of physical exercise in the form of body activities on drug delivery using nanodevices. The body's actions impact the blood flow since the nano drug delivery devices are released into the bloodstream, and physical exercise and all the activities that change the blood flow influence the stability of these nanodevices. The nanodevice for the drug delivery purpose is modeled via nonuniform tube structures based on the high-order beam theory along with the nonlocal strain gradient theory. The nanodevice is made by a central nanomotor as well as two nanoblade in the form of truncated conical nanotubes carrying the nanomedicine. The mathematical simulation of rotating nanodevices is numerically solved, and the effect of various parameters on the stability of nanodevices has been studied in detail after the validation study.

• 대한임상전기생리학회지
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• 제9권2호
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• pp.31-38
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• 2011

Purpose : The purpose of this study was to compare the effects of different supporting surfaces on trunk muscle activities during core stabilization exercises. Methods : A total of 20 healthy college students participated in this study for 6 weeks. In this study, we divided participants into a stable surface exercise group and an unstable surface exercise group. Each group performed core stabilization exercises of Curl-ups, Bridges, and Quadrupedal position. Core stabilization exercises were performed 3 times a week for 30 minutes during 6 weeks. The stable surface exercise group used a yoga mat while the unstable surface exercise group used AERO step. This study was designed using pre-test and post-test measurements. We used Surface Electromyograpy (sEMG) to measure for the rectus abdominis, external abdominal oblique, and multifidus muscle of trunk muscle activities. Data was processed using a paired sample t-test on SPSS 18.0. Results : For the stable surface exercise group there was a meaningful improvement in left rectus abdominis, left external abdominal oblique, and right multifidus (p<0.05). For the unstable surface exercise group, a meaningful improvement was seen in the left external abdominal oblique and right multifidus. Conclusion : From the experiment, we concluded that differences in surface can make various degrees of improvement in muscles activities, which suggests patients can choose a better option under their own conditions when planning to have a core stability exercise.

• 한국전문물리치료학회지
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• 제1권1호
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• pp.88-91
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• 1994

Arthritis may well be the diagnosis most commonly encountered by physicla therapists. Until the past few year, physical therapy treatment programs for arthritis consisting of heat, ROM, isometric exercise and rest were the rule. But now physical therapy treatment activities have changee. New philosophies, about exercise in particular, have emerge, as well as an improved understanding and application of physical agents. Therefore a review of the literature regarding physical therapy for rheumatoid arthritis is presented.

• 대한물리의학회지
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• 제3권2호
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• pp.121-125
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• 2008

Purpose : The objective of this study was conducted to find out the treatment of joint problems. Methods : This is a literature study with books, seminar note and international course books. Results : Passive oscillation and distraction movement therapy is only joint mobilization and pain control. In the joint therapy need muscle strengthening, training of eccentrical control and neurophysiological therapy for joint mobility, stability, stability of mobility and skill. Conclusion : Joint therapy is not only joint mobility but also strengthening of soft tissue. Need the neurophysiological therapy those are use of ventromedial motor nucleus and dorsolateral motor nucleus, reciprocal inhibition, eccentrical muscle contraction training, proprioceptors and exteroceptor for structures and functional activities. For the pain control, reduce swelling, keeping GAGs and functional activities need direct and indirect therapy.

• 대한물리치료과학회지
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• 제2권3호
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• pp.645-651
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• 1995

The purpose of study was that the functional gains achieved by stroke patients after rehabilitation in the acute phase have been documented. Sixty stroke inpatients who were at least 3.57 month postonset participated;32 males and 28 females;mean age, 57.4 years. By the classification of diagnosis, 20 subjects were cerebral infarction and 27 subjects were cerebral hemorrhage. Activities of daily living(ADL) performance was investigated using the Klein-Bell ADL Scale. ADL test was practiced within physical therapy room. The outcome variables were first analyzed using frequency statistics. The functional gains of the patients with sex and hemiplegic site were then using an ANOVA. Mean score of dressing, elimination, mobility, bathing/hygiene, eating, and telephone use, 26.6, 56.0, 41.4, 36.5, 82.0, and 56.7. Mean score of total, 43.0. There was no significant difference in sex and hemiplegic site.

• 대한임베디드공학회논문지
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• 제13권4호
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• pp.215-223
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• 2018

Recently, as interest of wearable devices has increased, commercially available smart wristbands and applications have been used as a tool for personal healthy management. However most previous studies have focused on evaluating the accuracy and reliability of the technical problems of wearable devices, especially step counts, walking distance, and energy consumption measured from the smart wristbands. In this study, we propose a physical activity evaluation model using classification rules, induced from the associative classification mining approach. These rules associated with five physical activities were generated by considering activities and walking times in target heart rate zones such as 'Out-of Zone', 'Fat Burn Zone', 'Cardio Zone', and 'Peak Zone'. In the experiment, we evaluated the prediction power of classification rules and verified its effectiveness by comparing classification accuracies between the proposed model and support vector machine.

• The Journal of Korean Physical Therapy
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• 제21권1호
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• pp.35-40
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• 2009

Purpose: The purpose of this study was to investigate change of muscle activities during level walking, stairs and ramp climbing in old adults. Methods: Twelve old adults were recruited and agreed this study. Muscle activity was measured by MP150 system (BIOPAC System Inc., Santa Barbara, USA). Statistical analysis was used one-way ANOVA to know the difference according to gait conditions (level walking, stairs and ramp ascending) Results: In stance phase, muscle activities of low extremities with old adults were generally significant difference in ramp ascending. In swing phase, rectus femoris and biceps femoris activity in old adults generally more increased during stairs ascending and tibialis anterior and gastrocnemius activity in old adults generally increased during ramp ascending. Conclusion: These results indicate that stair and ramp climbing is different muscle recruit pattern to level walking.

• The Journal of Korean Physical Therapy
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• 제12권1호
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• pp.65-71
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• 2000

This study investigated the effect of anticipatory postural adjustment on balance performance in postural disturbance. Any action performed by standing subject is generally accompanied by compensatory postural activities, which reduce or abolish the postural disturbance generated by the movement and keep the subjects' center of gravity within the supporting base. These Postural activities arc triggered by either anticipatory and feedback postural control. We studied the difference of anticipatory and feedback postural control in postural disturbance. The subjects were standing on a foot plate with eyes closed, holding a lead of $5\%$ of their own body weight in their hands. The condition of anticipatory postural adjustment was applied voluntarily releases the a load. The condition of feedback postural control was applied that the load was unpredictably removed. We concluded that anticipatory postural adjustment becomes more efficient to postural performance in postural disturbance.

• Advances in nano research
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• 제14권3호
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• pp.273-284
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• 2023

Combating the worldwide environmental threat of plastic waste pollution has become a priority. Plastic pollution has the potential to impact land, rivers, and seas, since many marine and terrestrial organisms have perished as a result of plastic's non-biodegradability and soil dangers. For this consumption, it seems required to manufacture and use new renewable resources. Renewable materials for diverse applications have been created utilizing nanotechnology, which may replace conventional materials for children's activities and sports equipment. This study investigates and suggests that nanotechnology-based materials be replaced with conventional materials to save the environment in manufacturing equipment for children's physical activities. On the basis of the mechanical sciences, a stability study of the bending behavior of small-scale structures will be performed for the various recommended materials.

• 한국산학기술학회논문지
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• 제21권5호
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• pp.303-311
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• 2020

본 연구는 숲 체험 놀이 활동이 유아 학부모의 기대감과 유아의 다중지능향상에 미치는 영향력을 살펴보기 위해 A지역 소재 어린이집 유아 학부모 152명을 대상으로 구조방정식 모델을 적용하여 실증 조사하였다. 연구 결과 첫째, 유아의 숲체험 놀이 활동의 신체적, 사회적, 인지적 요인이 학부모가 유아의 안전 활동 기대감과 미세먼지 염려에 미치는 요인에 있어 신체적, 인지적 요인이 채택된 반면, 사회적 요인은 기각되었다. 둘째, 유아 숲체험 놀이 활동이 유아의 다중지능 향상에 미치는 영향에서 신체적, 사회적, 인지적 요인이 다중지능 향상의 하위 요인인 사회성에 영향을 미쳤다. 또한, 사회적, 인지적 자발성은 감수성과 창의성 향상에 유의한 영향을 미치는 것으로 나타났다. 셋째, 유아의 숲체험놀이 활동이 다중지능 향상에 미치는 영향에서 학부모의 기대감이 매개역할을 할 것이라는 가설 3은 유의하지 않은 것으로 나타나 기각되었다. 이와 같은 결과는 숲체험 활동의 신체적, 인지적 요인이 유아 학부모의 미세먼지 염려와 안전활동에 직접적인 영향을 받는 요인임을 확인하였으며, 그리고 사회성 요인은 유아의 어린이집 내 다양한 교육에서 충분히 습득될 수 있는 요인으로 숲체험 놀이 활동에 대한 학부모의 기대감과는 다소 거리가 있음을 시사한 것으로 평가할 수 있다.