• Journal of the Ergonomics Society of Korea
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• v.30 no.2
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• pp.291-296
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• 2011

This study was designed to investigate the effects of an ankle foot orthosis(AFO) with variable ankle joint angles on balance performance in healthy adults. Eighteen healthy adults were recruited in this repeated measures design with subjects as their own controls. An AFO with four kinds of ankle joint angles(-5, 0, 5, and 10 degree) were used and balance performance was measured during single limb standing. Three trials were obtained and then averaged for data analysis. Foot pressure was measured using an F-scan system and muscle activity was measured using an MP150 system. There were significant differences in balance performance with ankle joint angles. An AFO with -5 degrees was associated with significant increases in postural sway(anterior-posterior), and in muscle activity for the medial gastrocnemius and tibialis anterior compared with other degrees of angle. Findings of this study show that angles of an AFO are related to balance performance and a joint angle of 10 degree is effective for promoting joint stability and postural control. This information can be used by clinicians to prescribe AFOs.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.22 no.1
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• pp.43-49
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• 2016

Background: The purpose of this study was to investigate the effects on balance and Jump performance in soccer player with functional ankle instability of Movement with mobilization (MWM) and taping. Methods: In 30 male college soccer player with functional ankle instability subjects of this study randomization, fibular reposition taping (FRT) group (n=10), kinesio taping (KT) group (n=10), control group (n=10) that included in the MWM and taping was classified group.Before and after intervention, measured in surface area ellipse and countermovement jump with arm swing. Results: Showed a significant balance and jump performance from the FRT group and KT group compared to the control group. Showed a significant improvement in balance from the FRT group compared to the KT group. Conclusions: MMW and taping showed the increased balance and Jump performance in soccer player with functional ankle instability.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.10
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• pp.443-450
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• 2020

This study aims to add insight into the effectiveness of e-training, e-leadership, work-life balance, and work motivation on millennial generation employees' performance in today's work life amid the outbreak of the COVID-19 pandemic that requires to work more online. Unlike previous generations, millennials are technology-literate, intent on succeeding quickly, give up easily, and seek instantaneous gratification. The population in this study are millennial generation employees at one of Honda motorcycle dealers in Jakarta, Indonesia. The number of samples collected was 200. The sampling technique used is the side probability method, with proportional random sampling technique. The research method used is an associative quantitative approach through survey methods and Structural Equation Modeling. Data were collected through questionnaires distributed to millennial generation employees, with results then processed through the Lisrel 8.5 program. The results of this study show, first, that e-training, e-leadership, and work-life balance have positive effect on work motivation. Second, e-training, e-leadership, work-life balance, and work motivation have positive effect on employees' performance. The findings indicate that companies must pay attention to the factors of e-training, e-leadership, and work-life balance to keep employees motivated and to maintain optimal employee performance, especially during the COVID-19 pandemic through working online.

• Journal of the Korean Society of Physical Medicine
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• v.8 no.1
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• pp.117-125
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• 2013

PURPOSE: The purpose of this study was to investigate the effect of trunk muscle strengthening exercises on balance performance of sitting posture and upper extremity function, targeting the children with spastic diplegic cerebral palsy. METHODS: 20 children with spastic diplegic cerebral palsy were sampled at random and the tests were conducted for 6 weeks, 3 times per week. For experimental groups, basic physical therapy and trunk muscle strengthening exercises were conducted and for control groups, only basic physical therapy was conducted. BPM(Balance Performance Monitor) was used to measure balance performance and QUEST(quality of upper extremity skills test) was used to measure the upper extremity function. RESULTS: The comparison of changes in sitting balance performance in between experimental groups and control groups show significant difference (p<.05), the changes of the upper extremity function in experimental groups and control groups show significant difference (p<.05). CONCLUSION: Trunk muscle strengthening exercises are effective in improving balance performance and the upper extremity function for the children with spastic diplegic cerebral palsy.

• Journal of Korean Physical Therapy Science
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• v.8 no.2
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• pp.1081-1090
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• 2001

This study was conducted to find out effect of dynamic balance performance in normal adult when obscuring vision in half of the both eye and to prepare the basic data treatment of brain damage patient with visual field deficit. The subject for this study included 40 healthy right-handed and 20 left-handed were dynamic balance performance when obscuring vision in half of the both eye. who age from 20 to 30 years in normal adult without neurosurgical orthopedic, performance balance disability or other medical disorders. Of these individuals 20 right-handed and 20 left-handed were executed dynamic balance performance when obscuring vision in half of the both eye. individuals of right, left-handed were executed dynamic performance when obscuring vision in half of the both eye measure with a Balance Performance Monitor (BPM) Data print Software Version 5.3. In other to determine the statitsical significance of the result, instrumentation was used to t-test, chisquare of the SAS(Strategic Application Software) The result of the study were that: 1) Significant differences in LOS were found right-handed and left-handed subject when dynamic performance without obscuring vision and obscuring vision(p<0.05). 2) Significant differences in LOS were founded left-handed when dynamic performance were executed obscuring vision and without obscuring vision(p<0.05). 3) Significant differences in LOS were founded right-handed when dynamic performance were executed obscuring vision and without obscuring vision(p<0.05).

• Physical Therapy Korea
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• v.17 no.2
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• pp.33-42
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• 2010

The aim of this study was to investigate correlations of the Trunk Control Test (TCT), Postural Assessment Scale for Stroke (PASS-TC), and Trunk Impairment Scale (TIS) and to compare the TCT, PASS-TC, TIS and its subscales in relation to balance, gait and functional performance ability after stroke. Sixty-two stroke patients attending a rehabilitation program participated in the study. Trunk control was measured with the use of TCT, PASS-TC, TIS balance (Berg Balance scale; BSS), gait ability (10 m walk test), functional performance ability (Tuned Up and Go Test TUG) and the mobility part of the Modified Barthel index (MBI), Fugl Meyer-Upper/Lower Extremity ($FM-U{\cdot}L/E$), The scatter-plot (correlation coefficient) was composed for the total scores of the TCT, PASS-TC, and TIS. The multiple regression analysis was performed to evaluate the impact of trunk control on balance, gait, and functional performance ability. Twenty eight participants (45.2%) and twenty participants (32.3%) obtained the maximum score on the TCT and PASS-TC respectively; no subject reached the maximum score on the Trunk Impairment Scale. There were significant correlations between the TIS and TCT (r=.38, p<.01), PASS-TC (r=.30, p<.05), TCT and PASS-TC (r=.59, p<.01). Stepwise multiple regression analysis showed that the BBS score (${\beta}=.420{\sim}.832$) had slightly more power in predicting trunk control than the $FM-U{\cdot}L/E$. TIS-dynamic sitting balance, TUG and the MBI-mobility part. This study 치early indicates that trunk control is still impaired in stroke patients. Measures of trunk control were significantly related with values of balance, gait and functional performance ability. The results imply that management of trunk rehabilitation after stroke should be emphasized.

• Therapeutic Science for Rehabilitation
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• v.2 no.1
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• pp.77-86
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• 2013

Objective : The purpose of this study is to assess affects of pilates exercise program on balance ability and ADL performance ability of patient with chronic cerebellum infarction. Methods : The object of this study K-hospital located in daegu, 62-year-old woman who have receiving inpatient treatment with cerebellum infraction. Before and after the intervention in order to compare balance ability was assessed using berg balance scale(BBS) and ADL performance ability was assessed by modified barthel index(MBI). Results : Balance ability of the object score improved from 19 to 29, the ADL performance ability score increased from 74 to 87. Conclusion : The result of this study pilates exercise program in patients with chronic cerebellum infarction balance ability and ADL performance ability to promote was found that the effect. this pilates exercise program in the occupational therapy, if appropriately utilized more on the functional recovery of patients is expected to be helpful.

• Physical Therapy Rehabilitation Science
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• v.2 no.2
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• pp.115-118
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• 2013

Objective: Whole body vibration training is a relatively new approach for enhancement of muscle strength, physical performance, and balance. The aim of this study was to assess the effect of unilateral whole body vibration training. Design: One group pretest-posttest design. Methods: Sixteen healthy, physically active volunteers participated in this study. Whole body vibration was applied with a frequency of 20 Hz and an amplitude of 3 mm for 3 minutes. Muscle performance and static balance were assessed before and after unilateral whole body vibration training. One leg standing broad jump test was measured to determine muscle performance which is closely linked to lower extremity muscle function. The good balance system was used in evaluation static balance. All test were measured 3 times and the average value was analyzed. Results: Jumping length was significantly improved by 0.11m in all participants after intervention (p<0.05). Among static parameters, significant results were observed where in the eyes opened condition, X-speed (medial-lateral sway) changed from 4.20 mm/s to 4.95 mm/s, Y-speed (anterior-posterior sway) changed from 5.77 mm/s to 6.54 mm/s and velocity moment changed from $12.77mm^2/s$ to $13.57mm^2/s$ (p<0.05). In the eyes closed condition, X-speed changed from 4.34 mm/s to 4.85 mm/s, Y-speed changed from 7.84 mm/s to 8.16 mm/s and velocity moment changed from $16.03mm^2/s$ to $16.11mm^2/s$ (p<0.05). Conclusions: Immediate unilateral whole body vibration improved muscle performance but impaired static balance in young adults.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.10 no.4
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• pp.49-57
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• 2015

This research is to analyze the mediating effect of product innovation between work-life balance (work-family balance, work-leisure balance and work-development balance) and corporate performance in venture SMEs. We test four hypothesis. First, we test the hypothesis that work-life balance has a positive effect on product innovation. Second, we test the hypothesis that product innovation has a positive effect on corporate performance. Third, we test the hypothesis that work-life balance has a positive effect on corporate performance. Fourth, we test a positive mediating role of product innovation between work-life balance and corporate performance. For this research, we administered the questionnaire surveys, and got the 162 effective data of korean venture SMEs. We use CFA and SEM analysis of research model by AMOS 18.0. As a result, we can find the four meaningful results. First, work-life balance, especially only work-development balance, has a positive effect on product innovation. Second, product innovation has a positive effect on corporate performance. Third, the relationships between work-life balance (work-family balance, work-leisure balance and work-development balance) and corporate performance are no significant after the mediating variable (product innovation) is added. Fourth, product innovation has a positive mediating effect between work-life balance, especially only work-development balance, and corporate performance. Although this research has some limitations of generalization because of the limited size of samples, we has meaningful information related to the venture companies in the academic and business field. Additionally, the Multiple Indicator Multiple Cause(MIMIC) model is recommended in the future research.

• PNF and Movement
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• v.6 no.2
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• pp.1-10
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• 2008

Purpose : The purpose of this study was to investigate the effect of aquatic exercise applied PNF patterns on body composition and balance performance in people who have had a stroke. Methods : Forteen candidates who have all experienced a stroke were participating in a community based rehabilitation program, have been included in this study. The program was conducted three times weekly, 1 hour per session, for 10 consecutive weeks. Subjects were tested with body composition and 5 items of Berg's balance test at pre-training and post-training. Total balance indexes in 3 conditions were measured by K.A.T. 3000. The aquatic exercise applied PNF patterns was consisted of PNF patterns and various aquatic activities. Results : After ten weekends of aquatic exercise training, there were not significant difference in body composition(p>.05) except of muscular weight of affected lower extremity(p<.05). But edema index increased more than pre-training (p<.05). Subjects showed significant difference in Berg's balance test results except of 2 items of Berg's balance test (p<.05). Total balance index score when subjects opened their eyes and didn't hold the handle was decreased less than pre-training(p<.05). Conclusion : The results of this study showed that intervention of this aquatic exercise program applied PNF patterns could increase edema index and muscular weight of affected lower extremity and improve the balance performance in people who have had a stroke.