• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.2
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• pp.345-352
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• 2020

This study compared how falls can be reduced in disabled elderly people by using the Otago exercise program and ascertained the program's effects on physical function and psychological recovery. The subjects were 30 people, and were assigned to two groups. The experimental group had 17 people, and the other was the control group that had 13 people. The experimental group attended the 50-minute program twice a week for 12 weeks. The outcome measures for lower extremity muscle strength, postural balance, flexibility, and self-efficacy were tested at the pre-test and post-test phases. In the analysis, general characteristics were analyzed by descriptive statistics. Physical function and self-efficacy were analyzed by independent T-test between the two groups, and correspondence T-tests were used within the two groups. The result of this study demonstrated that the experimental group showed significant increases in lower extremity muscle strength, static balance, flexibility and dynamic balance, and self-efficacy showed a small increase in the experimental group. But the control group showed significant decreases in static balance, flexibility and fall efficacy. The control group also showed decreases in lower extremity strength and dynamic balance. So the results of this study proved that the Otago exercise program brought about positive changes to improve physical function and psychological function to help prevent disabled elderly people from falling.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.34 no.10
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• pp.1345-1350
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• 2010

Sit-to-stand movement is a basic movement in daily activities. On the basis of this movement, the biomechanical functions of a person can be evaluated. The study of the joint kinematics, moment, and muscle coordination is necessary to understand the characteristics of the sit-to-stand movement. We have developed a motion-based program for inverse dynamics analysis and the electromyogram-based program for muscle force prediction. The joint kinematics and the kinetic results estimated on the basis of obtained motion data, ground reaction force, and electromyogram signals were compared with those reported in previous studies, and the muscle forces determined by the two methods were compared with each other. The methods and programs developed in this study can be used to understand biomechanics and muscle coordination involved in basic movements in daily activities.

• Journal of Digital Convergence
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• v.14 no.6
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• pp.363-370
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• 2016

The purpose of this study was to investigate the effects of 12-week circuit weight training on their body composition and physical fitness in middle aged women. A total of 34 subjects of did not have any physical abnormalities or diseases, and the subjects were 12-week circuit weight training. The results of this study were as following : Body composition component examination showed that the body weight, body fat percentage and waist measurement showed differences that were statistically significant. And the physical fitness component examination showed that muscular endurance, flexibility, agility, and cardiovascular endurance showed differences that were statistically significant. But muscular strength and reflexes showed differences that were not statistically significant. These results suggest that the circuit weight-training had an effect on body composition and physical fitness examination results over 12-week. Therefore, we consider that the circuit weight training is recommended to middle-age women to improve body fat percentage and physical strength.

• Korean Journal of Applied Biomechanics
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• v.12 no.2
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• pp.1-16
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• 2002

The purposes of this study were to investigate the effects of strength training on the change of ground reaction force for the children with trisomy 21 Down syndrome. The subjects of this study were consisted of eight elementary school students with Down syndrome who participated in the strength training. The strength training was administered by six items such as squat, leg curl, leg extension, toe raise, sit-ups, and hyperextension. For strengthening muscle, each group also was treated by walking for 8 weeks, three times a week, 10-15RM, 3sets, which was based on the principle of progressive overload. For inquiring the effect of strength training, the ground reaction force variables were measured in two phases : before-training and 8 week-after training. The gait of each subject was acquisition using 2 AMTI force platforms set at 100 frequency. The results of this study were as follows: The pattern of vertical, antero-posterior and medio-lateral forces, trajectory of net COP and the timing ratio of reaching the each events were shown variously. So, it is not easy to explain these variables clearly. As the result of strength training, these variables were changed. However, the results of within subjects differ greatly, there was no difference statistically.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.06a
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• pp.989-990
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• 2009

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.10a
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• pp.623-624
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• 2009

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2007.06a
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• pp.713-714
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• 2007

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.12
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• pp.352-358
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• 2017

Frontotemporal dementia, the second most common cause of early onset dementia, is a neurodegenerative clinical syndrome characterized by progressive deficits in behavior, executive function and language. Although motor symptoms in frontotemporal dementia are represented by motor neuron disease, parkinsonism and progressive supranuclear palsy syndrome, there have been no reports of motor weakness caused by the direct involvement of central motor nervous systems in frontotemporal dementia. Moreover, no association between clinical dementia groups and complex regional pain syndrome has been reported. We diagnosed a rare case with motor weakness and complex regional pain syndrome of lower limbs due to central nervous system lesion in a patient with frontotemporal dementia by magnetic resonance imaging, electrodiagnostic study and three phase bone scan. Following steroid therapy for complex regional pain syndrome, pain was improved. Functional improvement was noted after rehabilitation therapy, including functional electrical stimulation, muscle strengthening exercise and gait training during hospitalization. This case report suggests that rehabilitation therapy for motor weakness in frontotemporal dementia could be effective for improving overall function.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2007.11a
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• pp.501-502
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• 2007

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.961-962
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• 2010