• International journal of advanced smart convergence
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• v.11 no.4
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• pp.57-67
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• 2022

The demand for personal training (PT), through which high exercise effects can be achieved within short-term, has recently increased. PT can achieve an exercise amount improvement effect, only if accurate postures are maintained upon performing PT, and exercise with inaccurate postures can cause injuries. However, research is insufficient on exercise amount comparisons and judging exercise accuracy on PT. This study proposes an exercise accuracy measurement algorithm and compares differences in exercise amounts according to exercise postures through experiments using a respiratory gas analyzer. The exercise accuracy measurement algorithm acquires Euler anglesfrom major body parts operated upon exercise through a motion device, based on which the joint angles are calculated. By comparing the calculated joint angles with each reference angle in each exercise step, the status of exercise accuracy is judged. The calculated results of exercise accuracy on squats, lunges, and push-ups showed 0.02% difference in comparison with actually measured results through a goniometer. As a result of the exercise amount comparison experiment according to accurate posture through a respiratory gas analyzer, the exercise amount was higher by 45.19% on average in accurate postures. Through this, it was confirmed that maintaining accurate postures contributes to exercise amount improvement.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.20 no.2
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• pp.27-34
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• 2014

Background: This study examined the effects of cervical traction group and cervical traction & nerve mobilization exercise group after applying conservative physical therapy to Computer Workers with Cervical Radiculopathy. Methods: They were randomly divided into two groups: 18 subjects were cervical traction group, 22 subjects were cervical traction and nerve mobilization exercise group. Each group performed its own exercise 30 minutes per day, three times per week, for 4 weeks. Pain intensity was measured by the visual analogue scale (VAS) and neck disability index (NDI). Cervical extensor muscles strength (CEMS) was measured by the Pressure biofeedback unit. Grasping power (GP) was measured by the Grip Track Commander. Results: After 4 weeks therapy, VAS and NDI were significantly reduced in both groups (p<.05) and CEMS and GP were significantly increased in both groups (p<.05). Significant differences were also evident between the two groups for these three measurements (p<.05). Conclusions: cervical traction and nerve mobilization exercise group is more effective than cervical traction group for reducing VAS and NDI and increasing GP in computer workers with cervical radiculopathy.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.121-122
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• 2016

본 논문에서는 청소년 비만에 대한 심각성이 증가함에 따라 더욱 체계적인 관리를 위해 줄넘기에 ICT 기술을 접목시켜 개인에게 알맞은 맞춤형 운동프로그램을 제안한다. 이 정책은 개별성의 원리에 의하여 개인차를 고려한 운동 프로그램을 설정하여 개개인들의 욕구, 흥미, 그리고 능력을 향상시키는데 있다. 이때 운동프로그램 설정을 못하는 운동초보자들을 위하여 줄넘기에 내장된 센서가 체력수준을 인식하고 그에 알맞은 프로그램을 제공하여 보다 효과적인 신체능력을 향상시켜 준다는 것에 의의를 두고 있다.

• Journal of Korea Multimedia Society
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• v.24 no.8
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• pp.1035-1043
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• 2021

The shoulder is less stable than other joints, making it easier to onset of various shoulder disorders. In addition, limited range of motion and pain in the shoulder due to shoulder disorders restricts daily life and social activities. The problem with exercise therapy can be reduced in exercise effect by causing boredom through simple repetition of motion, thus reducing the patient's willingness to participate. Therefore, this paper aims to provide a treatment method that can induce active participation of patients by developing devices capable of passive, active, and resistance exercise and serious game contents using them. Furthermore, sEMG was used to verify whether the rotational exercise in the horizontal and vertical using serious game contents helps the shoulder movement actually. The measured sEMG signal was classified as 5 phases according to the angle of rotation and calculated the mean integrated EMG. The mean integrated EMG for the experimental results was higher in all phases when rotational was performed compared to those when both horizontal and vertical rotational exercise remained initial posture, indicating an increase in muscle activity.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.231-232
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• 2016

본 논문에서는 세라밴드의 장점과 ICT기술을 접목시키고 운동 흥미유발 및 재미추구를 보안한 소도구를 개발하여 소비자 위주의 보급을 제안한다. 기존의 소도구 및 기구의 사용에 있어 소비자의 가격부담을 최소화하고 운동기구의 휴대성을 극대화시킨다. 또한 운동 시 지루함을 느끼지 않도록 개개인에게 맞춤형 운동 정보를 제공 하고 다함께 어울려 할 수 있는 운동 프로그램을 개발하고자 한다. 이 연구를 통해 공간에 제약 없이 어디서든 쉽고 재미있게 운동을 할 수 있고 정확한 정보를 가지고 체계적인 운동을 할 수 있게끔 장려 할 것 이다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.297-298
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• 2021

본 논문은 만성폐쇄성 폐 질환이 흡연, 대기오염으로 많은 질환자가 발생하여 재활운동을 필요로 하는 추세이다. 현재 측정 도구와 재활운동 도구가 분리되어 질환 진단은 한정된 시설을 이용해야만 하고 재활운동 또한 상시 진행할 수 없어 질환을 확인하기 어려운 실정이다. 이에 평상시 착용하는 이너형태에 재활운동 의류를 개발하여 올바른 호흡을 돕는 근육군이 동원하여 복식호흡을 유도하고 흉식호흡 시 웨어러블기기를 통해 인지하게 돕는다. 이 결과 일상 속 지속 가능한 재활운동을 바탕으로 가슴 벽의 호흡근육 활동을 감소시키고 복부 근육군을 개선하는 것으로 폐 기능을 증진시킬수 있는 언더웨어 개발을 제안하고자 한다.

• Journal of IKEEE
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• v.23 no.1
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• pp.74-79
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• 2019

As the desire for healthcare increases due to the ageing population and the well-being boom, interest in fitness is increasing. People go to the fitness center to exercise, but many people do not know how to exercise, so they often make the order of exercise and the exercise posture wrong. This not only reduces the effectiveness of the exercise, but also increases the risk of injury. This paper describes the development process of fitness system using smart mirror. This system allows people to follow the motion by themselves in front of the smart mirror, and if the exercise posture goes wrong, in real time it checks and corrects for the wrong point. By using this system, people will be able to exercise by themselves in the right posture without the help of a trainer. Also, as a result, people will be able to exercise at any time they want without the constraint of time commitment with a trainer and the cost will be reduced.

• Journal of the Institute of Convergence Signal Processing
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• v.21 no.1
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• pp.49-54
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• 2020

Cardiovascular disease is the leading cause of death worldwide and is caused by a variety of causes. The highest risk factor for cardiovascular disease is high blood pressure, which has no obvious symptoms, but if left untreated, it causes several complications. In order to treat hypertension, medication and regular exercise are required. In people with high blood pressure, excessive physical activity can put a great strain on the heart and lead to cardiovascular disease. Therefore, there is a need for an exercise intensity monitoring system through PTT measurement that can perform exercise at an appropriate intensity. In this study, we implemented a PTT change monitoring system according to exercise intensity by calculating PTT through ECG and PPG measurement. The implemented system differentiates the R-peak of the ECG and P-peak of the PPG, and calculates the PTT using the time difference between R-peak and P-peak. A running experiment was conducted to monitoring PTT change according to exercise intensity. As a result of the experiment, low intensity PTT is 0.313s, moderate is 0.220s, high is 0.188s, it was confirmed that the PTT decreased as the exercise increase increased.

• Journal of the Korea Society of Computer and Information
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• v.23 no.10
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• pp.143-149
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• 2018

The purpose of this study was to construct and validate a middle - aged exercise adherence model. The model was designed based on self - determination theory. Participants were 215 middle-aged men and women aged 40-60 who had been exercising for more than six months. Data was collected from four big cities of Seoul, Busan, Gwangju and Daejeon in Korea, using a questionnaire consisting of basic psychological needs, intrinsic motivation, social support, and exercise adherence. Data were analyzed with SPSS 19.0 and AMOS 20.0. Social support and exercise adherence of the questionnaire were partially revised and verified by confirmatory factor analysis. The results of the study were as follows. The model's fit indices: GFI = .938, AGFI) = .915, NFI = .912, CFI = .941, and RMSEA = 0.041. The model satisfied the model fit of the structural model equation. This study model based on self - determination theory was confirmed that basic psychological needs, intrinsic motivation, and social support were important factors for the middle - aged's exercise adherence. Basic psychological need and intrinsic motivation had a direct influence on the adherence of exercise, and social support indirectly influenced the exercise adherence through intrinsic motivation. Both basic psychological needs and social support directly affected internal motivation. The most influential factor in the middle - aged's exercise adherence was intrinsic motivation. In conclusion, it was found that intrinsic motivation such as interest and fun is important for the middle - aged to continue the exercise. Also, the basic psychological needs were important for middle aged's exercise adherence. The results of this study will provide basic data for restoring or maintaining health by continuing exercise. Strategies that enhance intrinsic motivation are needed when a chronic ill person needs to continue long-term exercising.

• 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.