No abstract

Objective: The emergence of coronavirus in Serbia as well as in other European countries led to the declaration of a state of emergency, which, among other measures, included a switch to online education, the lockdown of public life and organized sports, and a curfew from 5 pm to 5 am. This study aimed to investigate the extent to which these measures affected children's daily routines. More specifically, it aimed to determine how children maintained their learning, physical activity, and screen time routines from the period before the state of emergency was declared.Methods: Response to an online parent-reported questionnaire was conducted (N = 450). The factorial validity of the scales was prepared using confirmatory factor analysis, with acceptable fit indices. Based on that, the authors tested the interrelations between dimensions using structural equation modeling in SPSS, AMOS 24.0.Results: The study results indicate a positive relationship between school achievement and study time (β = 0.25). They also indicate that children who were physically active before the pandemic continued their activities during the emergency state (β = 0.53). Physical activity impact during the COVID-19 emergency measures reduces children's behavior changes (β = 0.55). Finally, they highlight that children who spent more time with multimedia content had greater changes in anxiety, sensitivity, nervousness, and worry due to COVID-19 emergency measures (β = −0.38).Conclusions: Healthy lifestyle habits formed in childhood are suggested to be responsible for the greater “resistance to change” shown by the children from this study.

The aim of this research was to determine the differences related to morphological characteristics and body composition among volleyball players of the three most successful volleyball clubs in Montenegro. The results of the survey highligted the differences in terms of morphological characteristics and body composition of the players of VC Budva, VC Buduc´nost and VC Jedinstvo. The sample of 43 subjects was divided into three sub-samples, the sub-sample of the subjects consisting of 12 players of VC Budva, the champions of Montenegro 2018-19, the other sub-sample of 17 players of VC Buducnost, the participant in the European CEV Challenge Cup 2018-19, and the one of the examinees including 14 players of VC Jedinstvo, the champions of Montenegro in the season 2017-18. Morphological characteristics in the body composition were evaluated by a battery of 11 variables: body height, body weight, triceps skinfold, biceps skinfold, skinfold of the back, abdominal skinfold, calf skinfold, thigh skinfold, body mass index, fat percentage and muscle mass. The difference between the players of three the most successful volleyball clubs in the morphological characteristics and variables for assessing body composition were determined by ANOVA and LSD Post Hoc test. ANOVA test found statistically significant differences between these three clubs, determined by six variables that estimate the skinfolds, as well as a variable of estimated body mass index (BMI). LSD Post Hoc test found that the volleyball players of VC Budva have significantly lower values ??with regard to triceps skinfold, biceps skinfold, abdominal skinfold, calf skinfold and thigh skinfold, compared to the players of VC Buducnost and VC Jedinstvo, while in the case of variables that evaluates body mass index (BMI), volleyball players of VC Buducnost have less values compared to the players of VC Budva and VC Jedinstvo.

Background:The purpose of this study was to describe anthropometric characteristics and body composition of junior football and basketball players as well as to make comparisons between them. Material and methods:In this study 70 males were enrolled, divided into three groups: 25 football players, 13 basketball players and 32 healthy sedentary subjects. All subjects were assessed for the anthropometric measures required to calculate body composition variables, using the standardized procedures. Descriptive statistics were expressed as a mean (SD) for each variable. To detect the effects of each type of sport ANOVA and LSD Post Hoc tests were carried out. Results:The results showed there was no significant difference in the body mass index and bone content in the body among the groups, while a significant difference was found for body height and body weight as well as for the other two body content variables measured (muscle and fat) among the groups.Conclusions: These findings may give coaches from the region better working knowledge and advise them to follow recent selection process methods to be more successful during talent identification.

Objetivo: identificar la ingestión alimentaria de macro y micronutrientes en adolescentes viviendo con VIH/sida que usan terapia anti-retroviral y compararlos a las Dietary Reference Intakes. Metodología: estudio transversal realizado con adolescentes de ambos sexos con VIH/sida, en el que se evaluó la composición dietética de macro y micronutrientes a través del recordatorio alimentario de 24h. Resultados: 39 adolescentes con una edad promedio de 15 años, un 51,3% del sexo masculino. Los participantes consumieron menos calorías totales en la dieta, fibra total (g/d), vitaminas liposolubles (A, D, E, K), vitamina B5 (mg/d), vitamina B9 (mg/d), vitamina C (mg/d), calcio (mg/d), fósforo (mg/d), potasio (mg/d) y magnesio (mg/d) que lo recomendado. Los porcentajes de ingestión por debajo de lo recomendado representaron el 79,5% para las calorías, el 82,1% para la fibra total, el 89,7% para la vitamina A, el 100% para la vitamina D, el 87,2% para la vitamina E, el 100% para la vitamina K, el 71,8% para la vitamina B5, el 82,1% para la vitamina B9, el 76,9% para la vitamina C, el 92,3% para el calcio, el 61,5% para el fósforo, el 97,4% para el potasio y el 76,9% para el magnesio. Los participantes consumían más carbohidratos (g), proteínas (g), vitaminas B2 (mg/d), B3 (mg/d), B8 (mg/d) y sodio (g/d) de lo recomendado, representando porcentajes por encima de la ingestión del 92,3% para los hidratos de carbono, del 64,1% para las proteínas y la vitamina B2, del 56,4% para la vitamina B3, del 82,1% para la vitamina B8 y del 59% para el sodio. Los demás nutrientes estaban dentro de lo recomendado por las DRIs. Conclusión: el consumo alimentario fue inadecuado en comparación con lo recomendado por las Directrices Internacionales de Nutrición. The most significant deficiencies in macro and micro nutrients in adolescents living with HIV/AIDS in antiretroviral therapy Las deficiencias más significativas de macro y micro nutrientes en adolescentes que viven con el VIH/sida en terapia anti-retroviral