Effects of mobile-based exercise intervention on health indices by the comparison of personal training time in male workers

Background: In the case of large companies, exercise programs for workers need to be operated effectively. However, programs could be limited to managing many employees using just a few exercise trainers, depending on circumstances, and exercise programs are likely to be more effective through the use of applications on mobile devices. In this research, we examine the effects of the degree of personal training (PT) time on health indices and stress by conducting an exercise program through the use of mobile devices used by male workers. Methods: We recruited 60 applicants who wanted to participate in the study of their own free will in H Company, Seoul, South Korea. The participants in the mobile-based exercise (MBE) programs were divided into three groups: mobile-based exercise with 30 minutes of personal training (PT) group (n=21), MBE with 5 minutes of PT group (n=20), and MBE self-exercise group (n=19). For data processing, SPSS was used to derive the mean (M) and standard deviation (SD) values of all measured items. The results were analyzed by repeated two-way ANOVA, paired t-test, one-way ANOVA and least significant difference (LSD). The significance level of all statistical values was set at .05. Results: In the MBE with 30 minutes PT group and MBE with 5 minutes PT group, body fat mass and percentage of body fat significantly decreased, and fat-free mass significantly increased. It was noted that all variables related to physical fitness (muscular endurance, muscular strength, flexibility, cardiopulmonary endurance, movement screen) improved significantly in all three groups. Incidentally, HR rest, SBP and MAP significantly decreased in the MBE with 30 minutes PT group and MBE with 5 minutes PT group. PP and RPP significantly decreased in all groups, while stress significantly decreased in the MBE with 5 minutes PT group. Conclusions: The use of mobile-based exercise training had positive effects on the health status of workers, and the positive effects were augmented as the degree of PT time by an exercise trainer increased. In addition, it is noteworthy that the MBE with 5 minutes PT group improved to the same extent as the MBE with 30 minutes PT group. The study indicates that it is possible to manage large numbers of employees’ exercise programs using mobile applications. Any follow-up study would need to develop ways to motivate and tailor content and verify exercise programs while using mobile devices of the workers for participation in continuous and voluntary exercise. [Ethiop. J. Health Dev. 2020;34(Special issue-3):10-17] Keywords: Exercise, personal training, mobile-based

Dietary taurine intake, nutrients intake, dietary habits and life stress by depression in Korean female college students: a case-control study

<p>Abstract</p> <p>Background</p> <p>The purpose of this study was to investigate the dietary taurine intake, nutrients intake, dietary habits and life stress by depression in Korean female college students.</p> <p>Methods</p> <p>In this study, research data were collected in March 2009 and 65 patients with depression and 65 controls without depression participated. The CES-D (Center for Epidemiologic Studies Depression) scale was used for depression measure and controls were matched for age. A 3-day recall method was used for dietary assessment (2 weekdays and 1 weekend day).</p> <p>Results</p> <p>Average height, weight and body mass index (BMI) were 161.3±0.5cm, 55.3±1.0kg and 21.2±0.4kg/m² for depression patients and those of control group were 161.4±0.7cm, 53.1±0.8kg and 20.3±0.2kg/m², respectively. Average dietary taurine intakes of depression patients and control group were 89.1 and 88.0 mg/day, respectively. There was no significant difference in dietary taurine intake between depression patients and control group. The average intakes of vitamin A (p<0.05), β-carotene (p<0.01), vitamin C (p<0.05), folic acid (p<0.05) and fiber (p<0.05) of depression patients were significantly lower compared to control group. The average total dietary habit score of depression patients (47.2) was significantly lower than that of control group (51.3) (p<0.01). The average dietary habit scores of “eating meals at regular times” (p<0.05), “eating adequate amount of meals” (p<0.05), “having meals with diverse foods” (p<0.05), “avoiding eating spicy foods” (p<0.01) and “eating protein foods such as meat, fish, eggs, beans more than 2 times a day” (p<0.05) were significantly lower in depression patients compare to control group. The average scores of total life stress (p<0.001) and all stress categories of depression patients were significantly higher than those of control group except faculty problem score.</p> <p>Conclusions</p> <p>These results show that depression patients have poor dietary habits and unbalanced nutrition status. Also depression patients have higher life stress score.</p> <p>Therefore, continuous nutrition education and counselling for good dietary habits and balanced nutrition status are needed to prevent depression in Korean college students.</p

Experience in Close Relationships Scale-Short Version (ECR-S) Validation With Korean College Students

The goal of this study was to validate the Experience in Close Relationships Scale-Short version (ECR-S) in Korean college students. One item of the attachment avoidance subscale was deleted following confirmatory factor analysis. The results suggest that the ECR-S demonstrated acceptable internal consistency and construct validity.N

Self-Focused Attention and Career Anxiety: The Mediating Role of Career Adaptability

The purpose of this study was to examine how 2 forms of self-focused attention, self-reflection and self-rumination, influence career anxiety. The authors hypothesized that the association between these 2 types of self-focused attention and career anxiety would be mediated by career adaptability on the basis of a career construction model of adaptation. The participants were 326 undergraduate students in South Korea. The results of this study supported the hypothesized mediation model by indicating significant indirect effects of self-reflection and self-rumination on career anxiety via career adaptability. The direct effect of self-rumination on career anxiety was significant (B = .44, p &lt; .01), but the direct effect of self-reflection on career anxiety was not significant (B = -.05, p &gt; .05). The authors discuss implications for counselors to help college students manage career anxiety by encouraging and supporting increased career adaptability. Future research to examine the cross-cultural validity of the current findings is needed.N

Using the Theory of Planned Behavior to Predict Korean College Students&apos; Help-Seeking Intention

When dealing with the mental health concerns of college students, access to professional mental health services is necessary to enable early identification and prevention of severe mental health issues. Accordingly, this study used the theory of planned behavior (TPB) as a theoretical framework to determine the predictors of help-seeking intentions among college students in Korea. The authors developed a TPB questionnaire to measure attitudes, subjective norms, behavioral control, and intentions for seeking help and subsequently validated it via the confirmatory factor analysis (CFA). The authors considered mental health condition as a pre-existing factor that influences TPB variables. In addition, they deemed knowledge of professional mental health services as a factor influencing perceived behavioral control regarding help-seeking behavior among Korean college students. The research hypotheses were stated as follows: (H1) mental health conditions would influence TPB variables, which would in turn influence their intentions to seek help, and (H2) knowledge about professional mental health services would influence perceived behavioral control. With 300 undergraduate and graduate students, our results confirmed that mental health condition and knowledge about professional mental health services were associated with TPB variables, and all of the TPB variables we examined predicted intention to seek help.N

Optimal set of grid size and angular increment for practical dose calculation using the dynamic conformal arc technique: a systematic evaluation of the dosimetric effects in lung stereotactic body radiation therapy

Purpose To recommend the optimal plan parameter set of grid size and angular increment for dose calculations in treatment planning for lung stereotactic body radiation therapy (SBRT) using dynamic conformal arc therapy (DCAT) considering both accuracy and computational efficiency. Materials and methods Dose variations with varying grid sizes (2, 3, and 4 mm) and angular increments (2°, 4°, 6°, and 10°) were analyzed in a thorax phantom for 3 spherical target volumes and in 9 patient cases. A 2-mm grid size and 2° angular increment are assumed sufficient to serve as reference values. The dosimetric effect was evaluated using dose–volume histograms, monitor units (MUs), and dose to organs at risk (OARs) for a definite volume corresponding to the dose–volume constraint in lung SBRT. The times required for dose calculations using each parameter set were compared for clinical practicality. Results Larger grid sizes caused a dose increase to the structures and required higher MUs to achieve the target coverage. The discrete beam arrangements at each angular increment led to over- and under-estimated OARs doses due to the undulating dose distribution. When a 2° angular increment was used in both studies, a 4-mm grid size changed the dose variation by up to 3–4% (50 cGy) for the heart and the spinal cord, while a 3-mm grid size produced a dose difference of \u3c1% (12 cGy) in all tested OARs. When a 3-mm grid size was employed, angular increments of 6° and 10° caused maximum dose variations of 3% (23 cGy) and 10% (61 cGy) in the spinal cord, respectively, while a 4° increment resulted in a dose difference of \u3c1% (8 cGy) in all cases except for that of one patient. The 3-mm grid size and 4° angular increment enabled a 78% savings in computation time without making any critical sacrifices to dose accuracy. Conclusions A parameter set with a 3-mm grid size and a 4° angular increment is found to be appropriate for predicting patient dose distributions with a dose difference below 1% while reducing the computation time by more than half for lung SBRT using DCAT

Intelligent CCTV Surveillance Based on Sound Recognition and Sound Localization

CCTV is used for many purposes, especially for surveillance and fortraffic condition monitoring. This paper proposesan intelligent CCTV system that tracks sound events based on sound recognition and sound localization. From the experimental results, it is evident that the proposed method can be successfully used for the intelligent CCTV system of CCTV