Phase Angle and Body Composition as Predictors of Fitness and Athletic Performance in Adolescent Boxers.

Background: Phase angle (PhA) is an indicator of cellular health, function, and integrity. PhA has been considered an indicator of nutritional and health status, but it is uncertain whether it could be used as a fitness or athletic performance indicator.

Objective: To analyze the relationship between PhA and the fitness and athletic performance of adolescent boxers and to know whether this association is independent of body composition.

Social capital as a moderator of the relationship between violent community environment and psychological distress.

Objective: To evaluate the modifying effect of social capital on the relationship between living in violent communities and the presence of psychological distress in adolescents and youth in Mexico.

Method: The analysis of the Social Cohesion Survey for the Prevention of Violence and Crime (ECOPRED, by its acronym in Spanish) was conducted. The analytic sample consisted of 39,639 participants aged 12 to 29 years.

Association between maternal cardiometabolic markers and fetal growth in non-complicated pregnancies: a secondary analysis of the PRINCESA cohort.

The objective of this study was to evaluate the association of maternal cardiometabolic markers trajectories (glucose, triglycerides (TG), total cholesterol, systolic blood pressure (SBP) and diastolic blood pressure (DBP)) with estimated fetal weight trajectories and birth weight in Mexican pregnant women without medical complications. Cardiometabolic marker trajectories were characterized using group-based trajectory models. Mixed-effect and linear regression models were estimated to assess the association of maternal trajectories with estimated fetal weight and birth weight.

Beyond direct exposure to violence: effects of living in disordered and violent communities on psychological distress in young Mexican people.

The association between community violence and mental health has been studied by reports of individual experiences, particularly in adolescents and youths, but little is known about the effect of living in disordered and violent communities. This study aims to determine the possible relation between living in disordered and violent community environments and psychological distress in Mexican adolescents and youths regardless of their individual experience of victimization and to assess the potential modifying effect of sex and age on this association. Data come from a cross-sectional survey with a representative sample of adolescents and youths living in Mexican municipalities, including 39,639 participants aged from 12 to 29 years.

Differences in Body Weight According to Skin Color and Sex in Mexican Adults.

Objectives: 1) To analyze the differences in body weight according to skin color in Mexican adults. 2) Identify mediator variables that could explain possible differences in body weight according to skin color.

Methods: A nationally representative survey of Mexican adults was analyzed (n = 12,021).

[Evaluation of a program led by community workers to promote cardiometabolic health in adults in a highly marginalized Mexican municipality].

Objective: to evaluate the impact of a group program of nutrition education implemented by community workers on food consumption, physical activity and cardiometabolic risk. Material and methods: a randomized trial by conglomerates was performed. The intervention group (n = 246) participated in a program of nine group sessions of nutrition education delivered by community workers and focused on giving healthy habits options and evocation of motivations.

Individual, Family, and Social Factors Associated with Gestational Weight Gain in Adolescents: A Scoping Review.

About 56% to 84% of pregnant adolescents have inappropriate (insufficient or excessive) gestational weight gain (GWG); however, the factors associated with GWG in this age group have not been systematically identified. This scoping review aimed to synthesize the available scientific evidence on the association of individual, family, and social factors with inappropriate gestational weight gain in pregnant adolescents. To carry out this review, the MEDLINE, Scopus, Web of Science, and Google Scholar databases were searched for articles from recent years.

Dietary and Nutrient Intake, Eating Habits, and Its Association with Maternal Gestational Weight Gain and Offspring's Birth Weight in Pregnant Adolescents.

Pregnant adolescents' diet and eating habits are inadequate; however, their association with gestational weight gain (GWG) is uncertain. We aimed to analyze whether there is an association between dietary and nutrient intake and eating habits with GWG among pregnant adolescents and their offspring's birth weight. A longitudinal study was performed with 530 participants.

Main Retailers In Which Mexican Households Acquire Their Food Supply.

Objective: To describe the frequency of food and beverages purchased made by Mexican households at different types of grocery retailers.

Design: A national cross-sectional survey.

Setting: Mexico.

Energy Expenditure in Free-Living Physical Activities and Sedentary Behaviors in Mexican Schoolchildren.

Metabolic equivalents for youth (METy) are derived using the estimated basal metabolic rate (BMR). However, is unknown whether this METy can be different when measured resting energy expenditure (REE) is used. The purposes of this article are to: (a) To determine whether there is equivalence between METy values calculated using measured REE (METy-mea) and METy using predicted BMR (METy-est).

Association of Pregestational BMI and Gestational Weight Gain with Maternal and Neonatal Outcomes in Adolescents and Adults from Mexico City.

During pregnancy, adolescents experience physiological changes different from adults because they have not concluded their physical growth. Therefore, maternal and neonatal outcomes may not be the same. This paper aimed to analyze the association between pregestational BMI (pBMI) and gestational weight gain (GWG) with maternal and neonatal outcomes in adolescent and adult pregnant women.

Changes in blood pressure according to stature in Mexican adults.

Objective: To determine the possible existence of differences in blood pressure change over time according to stature in Mexican adults.

Methods: We analyzed the National Household Living Standards Survey databases following household members between 2005 and 2009. We selected participants who were between 20 and 40 years old (n = 7,130).

Association of pre-pregnancy body mass index and rate of weight gain during pregnancy with maternal indicators of cardiometabolic risk.

Background/objective: Changes in metabolism and extensive hemodynamic adjustments occur during normal pregnancy. The presence of maternal obesity imposes an overload to these physiological adaptations that may result in increased risk for the development of cardiometabolic complications during and after pregnancy. The aim of this study is to describe total cholesterol (TC), triglycerides (TG), glucose, and arterial blood pressure (BP) trajectories and to analyze the association of these cardiometabolic risk indicators during pregnancy with pre-pregnancy body mass index (pBMI) and monthly gestational weight gain (MGWG).

Food, energy, and nutrient supply in Mexican households from 1984 to 2018.

Introduction: information about changes in food and energy supply, macronutrient and micronutrient availability by processing level is required to understand the nutritional transition in Mexican society. Objective: to describe the food, energy, and nutrient supply in Mexican households from 1984 to 2018. Methods: five waves of a Mexican cross-sectional survey were analyzed to identify changes in food, energy, and nutrient supplies in households.

Disordered Eating Behaviors Are Associated with Gestational Weight Gain in Adolescents.

Disordered eating behaviors (DEBs) and adolescent pregnancy are public health problems. Among adolescents, there is little evidence concerning the relationship of DEB with gestational weight gain (GWG) and the birth weight and length of their offspring. We aimed to determine the association between DEB with GWG and the weight and length of adolescents' offspring.

Development and Interrater Reliability of a Street Food Stand Assessment Tool.

Objective: To design and test the interrater reliability of a Street Food Stand Assessment Tool (SFSAT).

Design: Variables were adapted from validated assessment tools, field observations, and the Mexican Dietary Guidelines. Two researchers tested the SFSAT by observing street food stands (SFS) in 3 middle- to high-income neighborhoods.

Associations between Screen-Based Activities, Physical Activity, and Dietary Habits in Mexican Schoolchildren.

Screen-based activities are associated with increased risk of obesity and contribute to physical inactivity and poor dietary habits. The primary aim of this study was to examine the associations among screen-based activities, physical activity, and dietary habits in school-aged children in Guadalajara, Puerto Vallarta, and Mexico City, Mexico. The secondary aim was to examine these associations across sex.

Clinical characteristics and severity of COVID-19 among Mexican adults.

Introduction: Obesity, diabetes, hypertension and age have been pointed at as factors that influence on the progression of COVID-19; however, evidence for other conditions is inconclusive.

Objective: To identify which clinical characteristics are related to COVID-19 severity and to determine whether age acts a modifier of the relationship between cardio-metabolic comorbidities (CMC) and COVID-19 progression.

Method: Data on ≥ 20-year-old confirmed cases (n = 159,017) were analyzed.

[Social inequalities in the progression of COVID-19 in the Mexican population].

Objective: To determine if there are disparities associated with socioeconomic stratification, ethnicity, medical services, and geographic region in the progression of coronavirus disease (COVID-19) in Mexican adults infected with SARS-CoV-2.

Method: We analyzed data registered by the General Direction of Epidemiology of the Ministry of Health of the Federal Government of Mexico regarding the confirmed cases of SARS-CoV-2 infection. The analysis was limited to data from adults 20 years and older recorded up to July 10, 2020 (n=234 870).

Differences in blood pressure according to physical fitness and body mass in a sample of Mexican schoolchildren.

Background: Physical fitness is the ability to perform activities of daily living without excessive fatigue. The potential protective role of fitness against high blood pressure in childhood is relevant to diminish the risk of hypertension in adulthood. A negative association between cardiorespiratory fitness (CRF) and hypertension has been found in the pediatric population.

Association Between Overt and Subtle Experiences of Discrimination and Violence and Mental Health in Homosexual and Bisexual Men in Mexico.

The aim of this study was to determine whether the experiences of direct or subtle forms of discrimination and violence are associated with mental health in Mexican gay, homosexual, and bisexual (GHB) men. A cross-sectional survey was conducted online; the sample consisted of 4,827 GHB men. Ten forms of overt and subtle sexual orientation-based discrimination and violence (SO-DV) were assessed.

Commuting to school among Mexican schoolchildren and adolescents.

Background: Active commuting (walking or cycling) is associated with benefits to health; thus, it is required to identify factors that promote it. The objective of this study was to analyze the relationship between the transport modes used by Mexican pediatric population to commute to school with sociodemographic and socioeconomic individual characteristics and public insecurity at the state level.

Methods: The frequency of transport modes used by schoolchildren and adolescents to commute to school (walking, cycling, private car and public transport) were estimated using the database of the Encuesta Intercensal 2015.

Validity of equations for estimating aerobic fitness in Mexican youth.

The purpose of this study was to evaluate the validity of prediction equations for estimating maximal oxygen uptake (VO) based on the PACER test and different adiposity indicators in Mexican youth. A convenience sample of youth aged 9-18 years from schools in Mexico City was recruited. VO was evaluated with a laboratory exercise test on a treadmill and using a gas analyser and with the 20-m PACER test guidelines.

[Contribution of NOVA food groups to energy and nutrient supply in Mexican households].

Objective: To analyze the contribution of natural, processed and ultra-processed foods to energy and nutrient supply in Mexican households.

Materials And Methods: The database of the National Household Expenditure Survey 2013 was analyzed (n=58 001), which is a cross-sectional survey. Food supply (g/adult equivalent/day) and energy, macro- and micro-nutrient supplies were estimated.