• Journal of the Korean Academy of Clinical Electrophysiology
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• v.8 no.2
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• pp.13-18
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• 2010

Purpose : This study investigates the effects on balanced ability and ankle joint muscle following balance pad and trampoline training periods in order to report a clinical directing about this matter. Methods : A total of nine members participated in a balance training program that put a balance pad and trampoline to use. Participants trained three times a week for thirty minutes in groups of six. Resting time was set for two minutes. EMG (median frequency and root mean square) was used to measure muscle activity at 3 weeks and 6 weeks, respectively. The tibialis anterior and gastrocnemius muscles were measured. Participants were measured with eyes open and closed. Results : The median frequency showed a significant difference according to the change in time in both muscles. Also, results showed a significant interaction between eyes open and closed in the gastrocnemius muscle. The root mean square only showed a significant difference according to the change in time in the gastrocnemius muscle. Conclusion : We suggest that the balance pad and trampoline training influence a decrease in the recruitment rate of slow twitch muscles through an improvement in balance ability; however, the training did not show a statistically significant difference with regards to eyes open and closed.

• Journal of The Korean Society of Integrative Medicine
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• v.2 no.1
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• pp.91-100
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• 2014

Purpose : The purpose of this study was to know the influence of the difference in shoulder slope from balance training. Method : Training was divided that the 10 people were a Trampoline group, 10 people were a Togu group, 8 people were a Balance Board group and 9 people were a Control group. Method of the training was that the Trampoline group was carried out on the Trampoline. The training was carried out totally 2 times of 8 set per a week and had a break time during 10 seconds after carried out 30 seconds per one set. Togu group was carried out totally 2 times of 5 minutes per a week and had a break time during 30 seconds after carried out 2 minutes per one set. Balance Board group was carried out totally 2 times of 5 minutes per a week and had a break time 30 seconds after carried out 2 minutes per one set. Data was analyzed by repeated measure of one way ANOVA and repeated measure ANOVA. Result : The shoulder of the slope difference decreased significantly after balance training. The Trampoline group decreased from $3.13{\pm}1.01$ to $2.37{\pm}1.11$, the Togu group decreased from $3.78{\pm}0.85$ to $3.78{\pm}0.85$, the Balance Board group decreased from $1.78{\pm}0.82$ to $1.65{\pm}0.59$ and the Control group decreased from $1.77{\pm}1.16$ to $1.61{\pm}0.62$. Conclusion : The effectiveness improved in the order Togu group, Trampoline group, Balance Board group and Control group from the result of the balance training about difference of slope shoulder.

• Geomechanics and Engineering
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• v.4 no.1
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• pp.39-53
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• 2012

Due to strong ground motion of earthquake, the material in the landslide can travel a significant distance from the source. A new landslide model called Multiplex Acceleration Model (MAM) has been proposed to interpret the mechanism of long run-out movement of this type of landslide, considering earthquake behaviors on slope and landslide materials. In previous study, this model was verified by a shaking table test. However, there is a scale limitation of shaking table test to investigate MAM in detail. Thus, numerical simulation was carried out in this study to validate MAM under full scale. A huge rock ejected and A truck threw upwards by seismic force during Wenchuan Earthquake (Ms. 8.0) was discussed based on the simulation results. The results indicate that collisions in P-phase of earthquake and trampoline effect are important behaviors to interpret the mechanism of long run-out and high velocity. The results show that MAM is acceptable and applicable.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.18 no.1
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• pp.11-17
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• 2012

Background: This study was conducted to examine the effect of application of trampolin training elderly women by position sense of knee joint and balance. Methods: Ten subjects with elderly women were randomly assigned to trampolin training group (n=5) or control group (n=5). Experimental group received for 15 minutes three times during 4 weeks. Outcomes was made using One-Leg Stance Test, Time Up and Go Test and position sense of knee joint. Assessment was before training and one week, two week, three week after training. Results: Applied to the trampolin training group showed significant differences in all tests and for the interaction between time and group (p<.05). Conclusions: Those results indicate that trampolin training is effective in elderly women to promoting a position sense of knee joint and balance ability.

• Journal of International Academy of Physical Therapy Research
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• v.10 no.2
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• pp.1756-1762
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• 2019

Background: Functional ankle instability (FAI) indicating a decrease in muscle strength, proprioception, neuromuscular control, balance and postural control function. Objective: To investigate the effect of jumping exercise on the supporting surface on the ankle muscle thickness, proprioceptive sensation, and balance in adults with FAI. Design: Randomized Controlled Trial. Methods: Twenty young people with FAI were randomly assigned to the unstable supporting surface jump group (N=10) and the stable supporting surface jump group (N=10). The intervention was conducted three times a week for eight weeks, and for 30 minutes per session. Trampoline was used as an unstable support surface and the stable support surface was carried out on a regular floor. The thickness of the tibialis anterior muscle and medial gastrocnemius muscle was measured by ultrasonography, and the proprioception of dorsiflexion and plantarflexion was measured using an electrogoniometer. The dynamic balance was also measured with a balance meter. Results: The the muscle thickness of the medial gastrocnemius muscle was significantly higher in the stable supporting surface jump group than in the unstable supporting surface jump group (p<.05). Furthermore, the plantar flexion proprioception and dynamic balance were significantly improved in the unstable supporting surface jump group than in the stable supporting surface jump group in the intergroup comparison (p<.05). Conclusions: The conclusion has been reached in this study that the jumping exercise on the unstable supporting surface could be a more effective in improving FAI than the regular surface.