Lower Dietary and Circulating Vitamin C in Middle- and Older-Aged Men and Women Are Associated with Lower Estimated Skeletal Muscle Mass.

BACKGROUND: Age-related loss of skeletal muscle mass contributes to poor outcomes including sarcopenia, physical disability, frailty, type 2 diabetes, and mortality. Vitamin C has physiological relevance to skeletal muscle and may protect it during aging, but few studies have investigated its importance in older populations. OBJECTIVES: We aimed to investigate cross-sectional associations of dietary and plasma vitamin C with proxy measures of skeletal muscle mass in a large cohort of middle- and older-aged individuals. METHODS: We analyzed data from >13,000 men and women in the European Prospective Investigation into Cancer and Nutrition-Norfolk cohort, aged 42-82 y. Fat-free mass (FFM), as a proxy for skeletal muscle mass, was estimated using bioelectrical impedance analysis and expressed as a percentage of total mass (FFM%) or standardized by BMI (FFMBMI). Dietary vitamin C intakes were calculated from 7-d food diary data, and plasma vitamin C was measured in peripheral blood. Multivariable regression models, including relevant lifestyle, dietary, and biological covariates, were used to determine associations between FFM measures and quintiles of dietary vitamin C or insufficient compared with sufficient plasma vitamin C (<50 μmol/L and ≥50 μmol/L). RESULTS: Positive trends were found across quintiles of dietary vitamin C and FFM measures for both sexes, with interquintile differences in FFM% and FFMBMI of 1.0% and 2.3% for men and 1.9% and 2.9% for women, respectively (all P < 0.001). Similarly, FFM% and FFMBMI measures were higher in participants with sufficient than with insufficient plasma vitamin C: by 1.6% and 2.0% in men, and 3.4% and 3.9% in women, respectively (all P < 0.001). Associations were also evident in analyses stratified into <65-y and ≥65-y age groups. CONCLUSIONS: Our findings of positive associations, of both dietary and circulating vitamin C with measures of skeletal muscle mass in middle- and older-aged men and women, suggest that dietary vitamin C intake may be useful for reducing age-related muscle loss

Analisis Perbandingan Tingkat Stress Mahasiswa Saintek dan Soshum dalam Pembelajaran Daring pada Masa Pandemi Covid-19 Berbasis Internet of Things

The spread of COVID-19 has occurred in 2019, which has had an enormous impact on the world's population. The continuous spread of COVID-19 has caused several countries to reduce the transmission of COVID-19, one of which is implementing online learning at schools and universities. The impact that occurs on students due to home study policies makes some students feel anxious and depressed. There are two study groups at the University of Lambung Mangkurat, namely the Social Humanities (Soshum) and Science and Technology (Saintek). The student who majored in science, technology, and social science has a different way of finding the information needed and understanding every material available online. This problem is due to cultural differences in the applied learning system. These differences certainly cause different stress levels for each student majoring in science, technology, and social sciences. Therefore, this study was conducted to determine the difference in stress levels experienced by Lambung Mangkurat University students in science, technology, and social media while online. This study uses two stages to compare the results of student stress levels, including filling out the DASS42 questionnaire and direct testing with 3 IoT sensors, namely GSR, body temperature (GY-906 MLX90614 Infrared Temperature Sensor), and pulse rate (MAX30102 Pulse Oximeter & Heart-Rate Sensor). The application of the Fuzzy Logic method is used as a parameter measurement when measuring IoT-based stress levels

Analisis Perbandingan Tingkat Stress Mahasiswa Saintek dan Soshum dalam Pembelajaran Daring pada Masa Pandemi Covid-19 Berbasis Internet Of Things

The spread of COVID-19 has occurred in 2019, which has had an enormous impact on the world's population. The continuous spread of COVID-19 has caused several countries to reduce the transmission of COVID-19, one of which is implementing online learning at schools and universities. The impact that occurs on students due to home study policies makes some students feel anxious and depressed. There are two study groups at the University of Lambung Mangkurat, namely the Social Humanities (Soshum) and Science and Technology (Saintek). The student who majored in science, technology, and social science has a different way of finding the information needed and understanding every material available online. This problem is due to cultural differences in the applied learning system. These differences certainly cause different stress levels for each student majoring in science, technology, and social sciences. Therefore, this study was conducted to determine the difference in stress levels experienced by Lambung Mangkurat University students in science, technology, and social media while online. This study uses two stages to compare the results of student stress levels, including filling out the DASS42 questionnaire and direct testing with 3 IoT sensors, namely GSR, body temperature (GY-906 MLX90614 Infrared Temperature Sensor), and pulse rate (MAX30102 Pulse Oximeter & Heart-Rate Sensor). The application of the Fuzzy Logic method is used as a parameter measurement when measuring IoT-based stress levels