• International Journal of Contents
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• 제10권3호
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• pp.1-8
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• 2014

In this paper, we collect and analyze the status of mobile phone applications (hereafter apps) in the healthcare and fitness category of the Apple iTunes App Store and Google Play Store. We determine the number of apps and analyze statistical aspects such as classifications, age rating, fees, and user evaluation of the popular items. As of September 30, 2013, there were 236 popular apps available from iTunes. Google Play offered 720 apps. We discover that apps for healthcare and fitness are diverse. Apps for physical exercise have the greatest popularity. The proportions of apps that are suitable for all ages among the Google and iTunes popular apps are 55.8% and 89.4%, respectively. The user evaluation of apps in iTunes is relatively less positive. We determine that the proportion of paid apps to free apps in Google is higher than that of the apps in iTunes. We perform hypothesis tests and find statistically significant differences in age rating and perceived satisfaction between the apps of the Apple iTunes App Store and Google Play Store. However, we find no meaningful differences in the classification and price of the apps between the two app stores. We perform hypothesis tests to verify the differences in age rating and perceived satisfaction between the paid and free apps within and across the Google Play Store and iTunes App Store. There are statistically significant differences in the age rating between the paid and free apps in the Google play store, between the Google free and iTunes free apps, between the Google paid and iTunes paid apps, between the Google free and iTunes paid apps, and between the Google paid and iTunes free apps. There are statistically significant differences in the perceived satisfaction between the Google free and iTunes free apps, between the Google paid and iTunes paid apps, between the Google free and iTunes paid apps, and between the Google paid and iTunes free apps.

• Healthcare Informatics Research
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• 제24권4호
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• pp.276-282
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• 2018

Objectives: Due to the uncontrolled increase of the mobile health applications and their scarce use by elderly for reason of absence credibility of measurements by lack scientific support, the aim of this study was to evaluate the differences between the biophysical measurements based on standard instrument against a mobile application using controlled experiments with elderly to propose an effective validation model of the developed apps. Methods: The subjects of the study (50 people) were elderly people who wanted to check their weight and cardiac status. For this purpose, two mobile applications were used to measure energy expenditure based on physical activity (Activ) and heart rate (SMCa) during controlled walking at specific speeds. Minute-by-minute measurements were recorded to evaluate the average error and the accuracy of the data acquired through confidence intervals by means of statistical analysis of the data. Results: The experimental results obtained by the Activ/SMCa apps showed a consistent statistical similarity with those obtained by specialized equipment with confidence intervals of 95%. All the subjects were advised and trained on the use of the applications, and the initial registration of data to characterize them served to significantly affect the perceived ease of use. Conclusions: This is the first model to validate a health-app with elderly people allowed to demonstrate the anthropometric and body movement differences of subjects with equal body mass index (BMI) but younger. Future studies should consider not only BMI data but also other variables, such as age and usability perception factors.

• Nutrition Research and Practice
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• 제13권6호
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• pp.509-520
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• 2019

BACKGROUND/OBJECTIVES: This study evaluated whether a mobile health (mHealth) application can instigate healthy behavioral changes and improvements in metabolic disorders in individuals with metabolic abnormalities. SUBJECTS/METHODS: Participants were divided into an mHealth intervention group (IG), which used a mobile app for 24 weeks, and a conventional IG. All mobile apps featured activity monitors, with blood pressure and glucose monitors, and body-composition measuring devices. The two groups were compared after 24 weeks in terms of health-behavior practice rate and changes in the proportion of people with health risks, and health behaviors performed by the IG that contributed to reductions in more than one health risk factor were analyzed using multiple logistic regression. RESULTS: Preference for low-sodium diet, reading nutritional facts, having breakfast, and performing moderate physical activity significantly increased in the mHealth IG. Furthermore, the mHealth IG showed a significant increase of eight items in the mini-dietary assessment; particularly, the items "I eat at least two types of vegetables of various colors at every meal" and "I consume dairies, such as milk, yogurt, and cheese, every day." The proportion of people with health risks, with the exception of fasting glucose, significantly decreased in the mHealth IG, while only the proportion of people with at-risk triglycerides and waist circumference of females significantly decreased in the control group. Finally, compared to those who did not show improvements of health risks, those who showed improvements of health risks in the mHealth IG had an odds ratio of 1.61 for moderate to vigorous physical activity, 1.65 for "I do not add more salt or soy sauce in my food," and 1.77 for "I remove fat in my meat before eating." CONCLUSIONS: The findings suggest that the additional use of a community-based mHealth service through a mobile application is effective for improving health behaviors and lowering metabolic risks in Koreans.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 추계학술대회
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• pp.981-984
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• 2015

사물인터넷은 기존의 유선통신을 기반으로 한 인터넷이나 모바일 인터넷보다 진화된 단계로 인터넷에 연결된 기기가 사람의 개입 없이 네트워크를 통해 언제 어디서나 서로 정보를 주고 받는다. 특히 사물인터넷 기술은 고령층 홈 케어나 만성질환 치료 및 관리 등 의료서비스 부문에 융합되어 의료비 절감 및 서비스 품질 향상에 기여할 것이며 헬스케어 산업의 패러다임 혁신이 될 것으로 기대된다. 따라서 본 연구에서는 IoT에 사용되어지는 기술과 IoT을 기반으로 한 국내외 의료서비스 적용 사례를 비교 분석하였다.

• 한국치위생학회지
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• 제18권6호
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• pp.987-1001
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• 2018

Objectives: This study aimed to provide basic data for future development and promotion of oral health care educational material. We examined the perception of teachers and parents on the use of smartphone applications as educational materials and the factors affecting the intent to use such materials in infants and toddlers. Methods: Teachers and parents of children enrolled in educational institutions in Seoul and Gyeonggi Province, Korea, participated in this study for a one-month period starting from August 2018. Results: The intent to use a freely available smartphone application for oral health education in infants and toddlers was high for both parents and teachers at 81.7% and 78.4%, respectively. The intent to use increased 10.089-fold when a child had unrestricted access to mobile devices, and 4.435-fold when the execution path required modification; however, the ease of use was not compromised. Additionally, the intent to use also increased 2.488-fold when a child had used an educational oral healthcare material that is currently available, and by 2.431-fold and 2.219-fold when a child had previous experiences with an educational mobile application developed for infants and toddlers. Conclusions: Our findings showed that the teachers and parents had a positive perception towards the use of mobile applications for oral health care education in infants and toddlers. We recommend the development and promotion of mobile-based educational applications on oral health care, which are tailored to the needs and oral characteristics of infants and toddlers to help develop good oral care habits.

• 한국멀티미디어학회논문지
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• 제24권11호
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• pp.1481-1491
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• 2021

Since most biosignals rely on contact-based measurement, there is still a problem in that it is hard to provide convenience to users by applying them to daily life. In this paper, we present a mobile application for estimating heart rate based on a deep learning model. The proposed application measures heart rate by capturing real-time face images in a non-contact manner. We trained a three-dimensional convolutional neural network to predict photoplethysmography (PPG) from face images. The face images used for training were taken in various movements and situations. To evaluate the performance of the proposed system, we used a pulse oximeter to measure a ground truth PPG. As a result, the deviation of the calculated root means square error between the heart rate from remote PPG measured by the proposed system and the heart rate from the ground truth was about 1.14, showing no significant difference. Our findings suggest that heart rate measurement by mobile applications is accurate enough to help manage health during daily life.

• 반도체디스플레이기술학회지
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• 제20권2호
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• pp.56-60
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• 2021

Recently, technologies for internet of things have been rapidly advanced with development of network. Also interest in smart healthcare that informs about motion information of users has been growing. In this paper, a system that is monitoring the weight on both feet by using aduino and FSR(Force Sensitive Resistor) Sensor is implemented. A 4-channel sensor driver module was implemented to measure a more accurate weight value. It is monitoring the weight on both feet by the using an application for either your PC or mobile device. Mobile applications can contribute to reducing human damage by sending messages along with location in emergency situations, such as injuries caused by falls during outdoor activities.

• 한국인터넷방송통신학회논문지
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• 제13권6호
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• pp.167-172
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• 2013

WPAN은 근거리 무선 개인 통신망으로 센서간의 연동과 센서와 네트워크간의 요소기술을 포함하고 있다. 유비쿼터스 센서 네트워크의 핵심 기술로 WLAN이나 CDMA망과 연계하여 더 큰 유비쿼터스 네트워크를 형성할 수 있다. 본 논문에서는 WPAN과 헬스케어의 융합의 관점으로 정기진료를 필요로 하는 환자들 중 임산부를 대상으로, 임신중의 활동사항을 스마트폰을 이용하여 체계적으로 관리할 수 있는 스마트폰 애플리케이션을 제안한다. 진단결과 데이터를 스마트폰에 WPAN 방식을 사용하여 전송하며, 스케줄링과 함께 애플리케이션의 다양한 서비스를 제공할 수 있도록 한다.

• 전자공학회논문지
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• 제51권6호
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• pp.162-168
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• 2014

PHR(Personal Health Records : 개인평생건강기록) 은 진료정보를 제공하는 것을 기본서비스로 하며, 환자와 서비스 제공자에게 유용한 서비스를 제공해야 한다. 본 연구는 진료정보의 제공 외 사용자에게 적합한 서비스를 발굴하는데 목적이 있다. 서비스 대상은 암환자로 한정하였고 PHR 서비스 발굴을 위하여 기존 사례 분석, 의료진 인터뷰, 환자 설문을 진행하였다. 그 결과로 발굴된 서비스는 3가지이다. 첫째, 환자에게 치료계획(patient's clinical pathway)을 제공하고 두 번째 온라인 질의응답기능 제공, 세번째 환자 본인의 상태를 입력하는 기능 제공이다. 발굴된 명지 PHR 서비스는 웹과 앱(안드로이드)으로 약 3개월간 파일롯 테스트를 하였고 유용성을 확인하였다. 향후 상업화된 PHR 서비스가 되기 위해서는 치료계획의 등록을 위한 표준화 및 사용자 편의성을 고려한 모델이 되어야 할 것이다.

• 디지털융복합연구
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• 제13권11호
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• pp.187-196
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• 2015

본 연구는 요양병원 입원환자를 대상으로 애니메이션 모바일 DNR 전자동의서를 적용한 후, DNR 전자동의서의 내용이해도와 사용편리성을 평가하고자 시도되었다. 2014년12월1일부터 16일까지 요양병원 입원환자 100명을 대상으로 DNR 전자동의서를 적용하였으며, 자료분석은 SPSS 21.0K를 이용하여 빈도분석, 교차분석, t-test와 ANOVA를 실시하였다. 연구결과는 첫째, 향후 심정지가 발생했을 때, DNR 선택 33.0%, CPR 선택 54.0%로 나타났으며, 주진단에 따른 DNR과 CPR 선택에 통계적으로 유의한 차이가 있었다. 둘째, DNR 전자동의서의 내용이해도는 2.50점, 사용편리성은 2.37점이었다. 이상의 연구 결과를 근거로 애니메이션 전자동의서가 동의서 내용에 대한 이해를 높여서 환자 스스로 DNR 및 CPR 시행을 결정하고, DNR 동의서를 직접 작성하는데 도움을 줄 수 있을 것으로 사료된다.