Relation between body factors, physical activity, and mental health among adult women and men: The Korea national health and nutrition examination survey.

BACKGROUND: Insufficient physical activity (PA) has a negative effect on mental health. Many countries try to promote PA. The Korea National Health and Nutrition Examination Survey (KNHANES) aims to promote PA and the importance of the recognition of subjective health and body image and mental health. OBJECTIVES: The study aimed to analyze the relationship among body factors, PA, and mental health of Korean adults using the seventh KNHANES (2018) survey. METHODS: KNHANES is a cross-sectional survey and investigates every 3 years. Data contain 4416 households (19-65-year-old) responses, and it was weighted average or sample fraction by reflecting the sampling and response rate of population ratio. International PA Questionnaire, metabolic equivalents tasks, Health Enhancing PA, Patient Health Questionnaire-9, Body factors, subjective health recognition, and subjective body image recognition were analyzed by t-test, ANOVA, Chi-square test, and Pearson's r. RESULTS: Correlation among PA and mental health, PA of females was correlated with stress. The PA of males was highly related to the overall mental health. In the differences by gender and PA, females enjoying exercise have a tendency of less body mass index (BMI) and more satisfied with subjective body image. Males showed no difference in BMI but on body factors; males with vigorous activity were higher on height and weight than males with walking activity. Mental health with PA, females with walking activity showed higher depression than females with moderate activity. Likewise, males with walking activity exhibited higher depression than males with moderate and vigorous activity. Females and males showed their PA affects perceived stress. CONCLUSION: These results suggest promoting PA may lead to enhance mental health.

The effects of physical activity and sedentary time on the prevalence rate of metabolic syndrome and perceived stress in Korean adults.

This study examined adult health related factors of the Korea National Health and Nutrition Examination Survey in 2017. Metabolic syndrome prevalence and perceived stress with physical activity and sedentary time were analyzed. Subjects are 4,459 over 40 year adults. The data were analyzed odds ratio (OR) and confidence interval by logistic regression analysis. First, male, moderate intensity occupational physical activity (OPA) and high intensity leisure time physical activity (LTPA) (OR, 1.337) between metabolic syndrome prevalence tended to increase. Vigorous intensity OPA (OR, 0.847), transport physical activity (TPA) (OR, 0.968), and moderate intensity LTPA (OR, 0.927) between metabolic syndrome prevalence tends to decrease. Female, vigorous intensity OPA (OR, 1.238) between metabolic syndrome prevalence tended to increase. Moderate intensity OPA (OR, 0.878), TPA (OR, 0.875), vigorous intensity LTPA (OR, 0.691), and moderate intensity LTPA (OR, 0.479) between metabolic syndrome prevalence tended to decrease. Male, vigorous intensity OPA (OR, 1.584), moderate intensity OPA (OR, 1.752), and vigorous intensity LTPA (OR, 1.316) between perceived stress tended to increase. TPA (OR, 0.753) and moderate intensity LTPA (OR, 0.983) between perceived stress tended to decrease. Female, moderate intensity OPA (OR, 2.331) between perceived stress tended to increase. Vigorous intensity OPA (OR, 0.732), TPA (OR, 0.836), vigorous intensity LTPA (OR, 0.990), and moderate intensity LTPA (OR, 0.837) between perceived stress tended to decrease.

The relationship between body shape perception and health behaviors among Korean normal-weight adolescents using Korea Youth Risk Behavior Web-Based Survey.

Inappropriate adolescent health behavior can be influenced by the negative impact of physical and mental health promotion. Obesity influences subjective improper weight perception. This study aimed to verify Korean normal-weight adolescents' subjective experience of weight control, mental health, physical activity, and subjective status based on their body mass index (BMI). As a result, efforts to control weight appeared less in normal-weight boys. Thin girls were less likely to carry out 60 min of physical activity 7 or 5 days per a week. Obese boys were less likely to carry out vigorous physical activity 3 days per a week. Normal-weight girls were less likely to practice muscular strength training 3 days per a week. Thin boys and thing girls were less likely to practice regular physical activity, and less likely to practice at the rate stipulated in the sedentary behavior guideline. In conclusion, boys and girls with inappropriate weight perception reported feeling stressed and depressed, and reported subjective sleep fulfillment, perceived subjective happiness, and perceived subjective health.

Studies on the VP4 and VP7 Genes of Bovine Rotaviruses from Field Samples Using RT-PCR and RFLP Analysis

Characterizations of the VP4 (P type) and VP7 (G type) genes of Korean isolates of bovine rotavirus were performed using RT-PCR/RFLP and nucleotide sequencing analysis. After RT-PCR amplification of partial length (1094bp) of the VP4 and full length (1062bp) of the VP7 genes, amplified PCR products were digested with restriction endonucleases and digestion patterns were compared with those of reference rotaviruses. With the VP4 genes, four RFLP (AD) profiles were observed; three (A, B and C) were the same as those of bovine rotavirus NCDV (P[1]), IND (P[5]) and B223 (P[11]), respectively, Profile D was the same as that of porcine rotavirus OSU (p[7]). With the VP7 genes, five RFLP profiles (I-V) were observed; three of them (1, II and III) were the same as those of bovine rotavirus NCDV (G6), Cody I-801 (G8), and B223 (G10), respectively, Profile IV and V were atypical to those of reference bovine rotaviruses used in this study. These two profiles were identified as G6 and G5, respectively, after analyzing and comparing the nucleotide sequences. The G typing analysis revealed that 61.9% (26/42) were G6, which included G6 subtype; 28.6% (12/42) were G5; 7.1% (3/42) were G10; 2.4% (1/42) were G8. The P typing analysis revealed that 54.8% (23/42) were P(5); 28.6% (12/42) were P(7); 11.8% (5/42) were P(11); 4.8% (2/42) were P(1). Our results showed that G6/P(5) were the most prevalent rotaviruses in diarrheic calves in Korea. Also, this is the first report that G5P(7) rotaviruses were identified from cattle with diarrhea.