• Journal of the Korea Society of Computer and Information
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• v.15 no.6
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• pp.129-138
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• 2010

The purpose of this study was to analyze the difference between Exercise addiction and Affect, and addiction-related potential was investigated. In addition, exercise addiction prevention and positive exercise was to identify. The participants of the study included 312 tennis club member who were more than 20 years old and lived in seoul city. The survey was analyzed by SPSS PC+ for window (version 12.0) which is a statistical analysis program to produce the computational results of this study. Based on the survey, this study could draw such results as follows: First, exercise addiction, gender and age on partial variables were statistically significant differences. A male positive addictions, exercise desire were higher than in female. 50s in the withdrawal symptoms of the variables that showed statistically significant difference participation, and period, frequency, time of exercise addiction showed that in withdrawal symptoms, positive addictions domain in a statistically meaningful differences. Second, social demographic domain in the presence of gender showed significant correlation exercise desire were and exercise participation time in the positive addictions showed significant correlation. Participation frequency and the time involved in retaining all the positive affect and negative affect have found a high correlation. Third, the influence of relation between exercise addiction and affect of tennis participants, exercise desire, positive addiction, showed in a statistically positive affect and negative affect meaningful influence on it.

• The Korean Journal of Applied Statistics
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• v.22 no.6
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• pp.1331-1343
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• 2009

In this paper, we are interested in tennis games and the best of all matches that is fair to most of all participants. Especially when players are ordered in accordance with their playing ability, we are interested in finding the best of all matches that is even with each other's playing pair. We propose a loss function And using our proposed loss function, we get a best match that obtains the minimal loss according to the number of games for given participants.

• The Korean Journal of Applied Statistics
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• v.21 no.6
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• pp.1015-1026
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• 2008

In this paper, we are interested in tennis games and the best of all matches that is fair to most of all participants. We introduce a loss function. And using our introduced loss function and round robin method, we get a best match that obtains the minimal loss according to the number of participants.

• Korean Journal of Cognitive Science
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• v.22 no.3
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• pp.255-270
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• 2011

The purpose of this study was to examine the effects of nonspecific and specific cue on decision making during situation awareness. Participants were 36 male college students who were randomly assigned to one of three groups: (1) nonspecific situation awareness, (2) specific situation awareness, and (3) a control group. Every participant was in the level 3-4.5 according to American National Tennis Level Program. Participants were asked to watch tennis single defence, single offence, double defence rally and when the screen stops, they were required to push the button(left, middle, or right) appropriate for the ball's direction to return as soon as possible. The experiment was designed to be analyzed for group(3)${\times}$condition(3)${\times}$area(7) using three-way ANOVA. The dependent variables were reaction time, accuracy rate, and amplitude and latency of P300. The result showed that the latency of the nonspecific situation awareness group and the specific situation awareness group was shorter and their amplitudes were higher than the control group. Fz, Cz, Pz were prominent among areas, and the single defence condition was more prominent than the single offence and the double defence condition. As a result of the study, it can be suggested that the information about situation awareness provided beforehand directly affects the brain's information processing. In addition, it shows that ERP can be a useful index for studying situation awareness.

• Journal of the Korean Society of Physical Medicine
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• v.11 no.1
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• pp.61-69
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• 2016

PURPOSE: This study was conducted to investigate the effect of the virtual reality training (VRT) using 3-dimensional video gaming technology on spatiotemporal gait parameters in older adults. METHODS: The study participants were divided into two groups: the VRT group and the control group. Those in the VRT group were enrolled in a VRT, which was conducted for 60 min per day, two times a week, during the 6-week research. The Wii-Fit balance board game was used for the VRT intervention. The VRT consisted of 6 different types of games, namely, jogging, swordplay, ski jump, hula hoop, tennis, and step dance. A 3-dimensional TV was used for 3-dimensional display. Participants in both the groups received 3 sessions of fall prevention education, at the first, third, and fifth weeks. Their gait parameters were measured by using OptoGait. RESULTS: After 6 weeks of the VRT, the spatial gait parameters of the participants, that is stride length and step length, were significantly improved compared with those of the control group participants (p<0.05). The temporal gait parameters, such as velocity, cadence, stride time, and step time, also showed improvement after the completion of the VRT training (p<0.05). Both the temporal and spatial gait parameters of the VRT group participants showed improvement after 6 weeks of the program compared with those of the control group participants (p<0.05). CONCLUSION: The VRT using 3-dimensional video gaming technology might be beneficial for improving gait parameters to prevent falls among older adults.

• The Journal of Korean Institute for Practical Engineering Education
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• v.1 no.1
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• pp.91-98
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• 2009

In approach of human-robot interaction, it is importance task in future robot industry to make to robot recognize, express, coping the emotions. The purpose of this study was to examination the effects unconscious positive and negative emotion of information processing of motor program. 13 participants(male=11, female=2) viewed smile-face picture and angry-face picture priming at 10ms level, and then performanced button press, button press and one tennis ball hitting, and button press and two tennis ball hitting task. The results appeared that positive emotion triggered more fast RT than negative emotion in planning complex motor program. Possible explanations for the performance differences depended on emotion are discussed and future research directions were provided.

• Journal of the Korean Society of Physical Medicine
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• v.7 no.4
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• pp.525-533
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• 2012

PURPOSE: The purpose of this study was to investigate initial effects of the non-elastic taping technique on grip strength and EMG in female with lateral epicondylalgia. METHODS: Twenty-two participants (mean age SD, $52.8{\pm}10.2$ years) with chronic lateral epicondylalgia (mean duration${\pm}$SD, $13.1{\pm}9.9$ months) participated in a placebo control study of an elbow taping technique. Outcome measures were pain-free grip and EMG taken before, immediately after application of tape. RESULTS: The experimental group were more significantly improved grip strength and muscle activity of forearm than control group. CONCLUSION: This study show that non-elastic taping technique is beneficial intervention for increase grip strength and EMG in female with lateral epicondylalgia.

• Journal of Life Science
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• v.18 no.8
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• pp.1072-1082
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• 2008

The purpose of this study was to report the difference of nutritional factors for high school female tennis players pre and during the competition. A total of 7 tennis players (4 elite and 3 non-elite) participated in this study. All participants reported the total food lists and amounts of ingestion prior to 3 days and during 3 days the competition. The total calorie of prior to the competition for elite group (2869.7${\pm}$426.6 kcal) was significantly higher than non-elite group (1743.4${\pm}$220.8 kcal). The amount of carbohydrate for elite group (pre: 242.2${\pm}$188.4 g, during: 241.6${\pm}$ 201.4 g) was statistically higher than non-elite group (pre: 173.9${\pm}$127.1 g, during: 206.8${\pm}$123.7 g) pre and during the competition. There were no different amount of protein and fat between two group before and during the competition. The amount of calcium and phosphorus were also no different among the groups The consumption of iron was different prior to the competition (15.95${\pm}$3.09 vs. 10.36${\pm}$2.40 mg). The elite group (1.76${\pm}$0.30 mg) consumed vitamin B1 more than non-elite group (1.21${\pm}$0.23 mg) during the competition. No different other vitamines between two groups pre and during the competition.

• Parasites, Hosts and Diseases
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• v.55 no.5
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• pp.533-540
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• 2017

Schistosoma mansoni is highly endemic in Tanzania and affects all age groups at different degrees. However, its control approach does not include adult individuals who are equally at risk and infected. To justify the inclusion of adult individuals in MDA programs in Tanzania, the present study focused on determining the prevalence of S. mansoni infection and its related morbidities among adult individuals. This was a cross sectional study conducted among 412 adult individuals aged 18-89 years living in selected villages of Rorya and Butiama districts located along the shoreline of the Lake Victoria. A pretested questionnaire was used to collect socio-demographic and socio-economic information of participants. Ultrasonographic examinations were conducted for all study participants using the Niamey protocol. A single stool sample was obtained from all study participants and examined for S. mansoni using the Kato-Katz technique. The study revealed a high prevalence of S. mansoni (56.3%), and the majority of infected individuals had a light intensity of infection. Ultrasonographic findings revealed that 22.4% of adult individuals had periportal fibrosis (PPF) (grade C-F), with 18.4% having grade C and D and 4% having grade E and F. Males had the highest prevalence of PPF (31.7% vs 10.8%, P<0.001). Organomegaly was common with 28.5% and 29.6% having splenomegaly and hepatomegaly, respectively. S. mansoni infection and its related morbidities included PPF, hepatomegaly, and splenomegaly were common among adult individuals. To reduce the level of transmission of S. mansoni infection, planned mass drug administration campaigns should include adult individuals living in these villages.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.23 no.1
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• pp.15-22
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• 2017

Background: The purpose of this study was to investigate into the effect of soft tissue mobilization using prop on the pain, grip strength and functional activity in patients with lateral epicondylitis. Methods: Fifteen patients with lateral epicondylitis were recruited. Before treatment, they were evaluated using visual analogue scale (VAS), grip strength, test, patient-rated tennis elbow evaluation (PRTEE), proprioception, and were reevaluated after six weeks of treatment. Results: As a result of comparing all participants before and after the experiment, the grip strength increased significantly (p<.05). And the VAS, PRTEE, and proprioception decreased significantly (p<.05). Conclusion: According to the results above, soft tissue mobilization using prop can help improve pain, grip strength, PRTEE and proprioception. Also, soft tissue mobilization using Blackroll's Twister technique was able to select interventions depending on the patient's condition and the desired goal.