Protein, Creatine, and Dieting Supplements Among Adolescents: Use and Associations With Eating Disorder Risk Factors, Exercise-, and Sports Participation, and Immigrant Status.

Objective: This study aimed to estimate the number of weekly users of protein, creatine, and dieting supplements and to explore whether weekly use was related to eating disorder (ED) risk factors, exercise, sports participation, and immigrant status. Methods: In total, 629 and 1,060 high school boys and girls, respectively, self-reported weekly frequency of protein, creatine, and dieting supplement use, and weight and shape concerns, appearance internalization and pressure, self-esteem, mental distress, physical activity level, exercise context, and the type and weekly frequency of sport played. Multiple hierarchical regression analyses were performed to investigate explanatory factors for supplement use. Results: More boys than girls used protein and creatine supplements. Immigrant boys had more frequent use of all supplements than non-immigrant boys, and immigrant girls used creatine supplements more frequently than non-immigrant girls. In total, 23-40 and 5-6% of the variation in the weekly frequency of supplement use in boys and girls, respectively, was explained by immigrant status, ED risk factors, and exercise and sports participation. More frequent use of protein, creatine and dieting supplements in boys was significantly explained by more weight and shape concerns, fitness center exercise, and weight-sensitive sports participation. Depending on the type of supplement, more frequent use of supplements in girls was significantly explained by lower self-esteem, more engagement in weight-sensitive sports, and less engagement in general sport and exercise activities. Conclusion: Weekly supplement use was common and more frequent among boys than girls. The weekly use of protein, creatine, and dieting supplements was related to ED risk factors, exercise and sports participation, and immigrant status in boys but not in girls.

Influence of maturational status in the exercise-induced release of cardiac troponin T in healthy young swimmers.

OBJECTIVES: To determine the influence of maturational status on the release of cardiac troponin T (cTnT) induced by a bout of 30min, high-intensity, continuous exercise. DESIGN: Quasi-experimental, cross-sectional study. METHODS: Seventy male, young, well trained swimmers (age range 7-18 years, training experience 1-11 years) were classified by maturational stages: Tanner stage I (n=14), II (n=15), III (n=15), IV (n=13), and V (n=13). Participants underwent a distance-trial of 30min continuous swimming, and cTnT was measured before, immediately after and 3h after exercise. Changes in cTnT over time were compared among groups, and associated with exercise load. RESULTS: Basal cTnT was higher in Tanner-V (3.8-8.1ng/L) compared with I (1.5-5.5ng/L, p<0.001), II (1.5-4.5ng/L, p<0.001) and III (1.5-6.8ng/L, p=0.003), and in IV (1.5-6.3ng/L) compared with II (p=0.036). Maximal elevations of cTnT from baseline were notable (p<0.001) and comparable among maturational stages (p=0.078). The upper reference limit for myocardial injury was exceeded in 35.7% of the participants, without differences among groups (p=0.18). Baseline cTnT correlated with participant characteristics, and maximal cTnT elevations from baseline with exercise internal load (%HRpeak, rs=0.34, p= 0.003; %HRmean, rs=0.28, p=0.02). CONCLUSIONS: Maturational status influences positively absolute pre- and post-exercise cTnT but not its elevation after a bout of 30min, high-intensity, continuous exercise.

Morfología de los potenciales evocados auditivos de latencia tardía P300 y su rol en la evaluación de la conducta suicida / Morphology of auditory evoked potentials, and its role in the evaluation of suicidal behavior

El suicidio es un problema de salud a nivel mundial, siendo la conducta suicida uno de los predictores de mortalidad por suicidio; sin embargo, su valoración aún sigue siendo compleja. Aunque la cantidad de literatura que ha abordado distintas perspectivas de la conducta suicida es abundante, se requiere ahondar en nuevos métodos que permitan una valoración rápida y objetiva de ésta, proporcionando a los clínicos y pacientes, un sistema de evaluación que registre los cambios de estados emocionales de manera dinámica. El objetivo de este manuscrito fue proporcionar una visión general de la morfología de los potenciales evocados auditivos de latencia tardía p300 y su rol en la evaluación de la conducta suicida.

Suicide is a global health problem, with suicidal behavior being one of the predictors of suicide mortality; however, its assessment is still complex. Although the amount of literature that has addressed different perspectives of suicidal behavior is abundant, it is necessary to deepen new methods that allow a rapid and objective assessment of it, providing clinicians and patients with an evaluation system that allows changes in emotional state to be recorded dynamically. The aim of this manuscript was to provide an overview of morphological patterns of auditory evoked potential P300 latency late in the assessment of suicidal behavior.

Exploration of socio-family and psychological characteristics of young males convicted of murder or attempted murder in the province of Buenos Aires, Argentina / Exploración de las características sociofamiliares y psicológicas en jóvenes con comportamiento homicida de la provincia de Buenos Aires, Argentina

Abstract Introduction: Different developmental and environmental vulnerability conditions can influence violent behavior in young people. Objectives: To describe the characteristics of young males who were convicted of murder or attempted murder in the province of Buenos Aires, based on indicators of maturity, impulsivity, and socio-family vulnerability. Materials and Methods: Descriptive and exploratory study. The sample consisted of 195 young men (mean: 16.8 years) imprisoned in reformatory institutions of the Province of Buenos Aires, Argentina, as they were convicted of murder (n=130), repeated murder (n=15), or attempted murder (n=50). Self and hetero-informed instruments, and professional assessment scales were used, namely: the Consideration of Future Consequences Scale (CFC); the Psychosocial Maturity Inventory (PSM); the Weinberg Adjustment Inventory (WAI); the Resistance to Peer Influence Questionnaire (RPIQ); the Psychopathy Checklist: Youth Version (PCL:YV); the Inventory of Callous Unemotional Traits (ICU), and the Barrat Impulsiveness Scale version 11 (BIS-11). Results: The distribution of the total BIS 11 and the PSM Individual Adaptation were normal (mean: 62.33 and 6.38, respectively). The mean of the total PCL:YV was 25.87. In 32.8% of the cases a first degree relative was also imprisoned. "Impulsive" and "Non-impulsive" clusters were empirically established. Conclusions: The participants' profile is characterized by several psychological and socio-family vulnerabilities that should be targeted in preventive interventions aimed at preventing violent recidivism.

Resumen Introducción. Diversas condiciones de vulnerabilidad dependientes del desarrollo y de las influencias medioambientales pueden influir en las conductas violentas juveniles. Objetivos. Describir las características de jóvenes que cometieron homicidio o intento de homicidio atendiendo a indicadores de madurez, impulsividad y vulnerabilidad sociofamiliar. Materiales y métodos. Estudio de diseño descriptivo y exploratorio. Los participantes fueron 195 varones jóvenes (media: 16.8 años) institucionalizados en la provincia de Buenos Aires, Argentina, por orden judicial por haber cometido homicidio (n=130), homicidio reiterado (n=15) o tentativa de homicidio (n=50). Se utilizaron instrumentos auto y heteroinformados y las escalas de evaluación profesional Consideration of Future Consequences Scale (CFC), Psychosocial Maturity Inventory (PSM), Weinberg Adjustment Inventory (WAI), Resistance to Peer Influence (RPI), Psychopathy Checklist: Youth Version (PCL:YV), Inventory of Callous Unemotional Traits (ICU) y Barrat Impulsiveness Scale version 11 (BIS 11). Resultados. La distribución de BIS 11 total y de PSM Adecuación Individual fueron normales, con medias de 62.33 y 6.38, respectivamente; la media de PCL: YV total fue 25.87. El 32.8% de los jóvenes tenía familiares de primer grado presos. Se configuraron empíricamente los clusters "impulsivo" y "no impulsivo". Conclusiones. El perfil de los participantes se caracteriza por diversas vulnerabilidades psicológicas y sociofamiliares que deberían ser blanco de intervención preventiva de recidiva violenta.

Risk of eating disorders in a group of high school students of a school in Bogotá D.C., Colombia. 2016 / Riesgo de trastornos del comportamiento alimentario en un grupo de estudiantes de secundaria en un colegio de Bogotá D.C., Colombia. 2016

Abstract Introduction: According to estimations, eating disorders affect 1-4% of the general population. In Colombia, few studies address this issue; however it has been found that the percentage of women with anorexia in Bogotá D.C. is similar to figures worldwide. Objective: To identify the risk of developing eating disorders (ED) in sixth through eighth grade students from a private school of Bogotá D.C. Materials and methods: Cross-sectional quantitative study conducted in sixth through eighth grade students from a school of Bogotá D.C., who were applied the EAT-26 Test. Those with scores greater than 20 were classified as having symptoms of risk of ED, and parents were summoned to receive prevention education on this matter. Results: 979 students were surveyed: 523 were boys and 456, girls, a 9.4% prevalence of ED risk was found. Male students of the lower grades had a higher risk of suffering from eating disorders; predominance was observed in the female sex as the grade level increased. Conclusion: Men are more likely to develop risk symptoms for eating disorders, especially at early ages. Designing strategies to prevent the onset of this disorder in the school population is recommended.

Resumen Introducción. Se estima que los trastornos alimentarios afectan el 1-4% de la población general. En Colombia son escasos los estudios al respecto, sin embargo en Bogotá D.C. se ha encontrado que el porcentaje de mujeres con anorexia es similar al que existe a nivel mundial. Objetivo. Identificar el riesgo para el padecimiento de trastornos de conducta alimentaria (TCA) en estudiantes de sexto a octavo grado de un colegio privado de Bogotá D.C. Materiales y métodos. Estudio cuantitativo transversal cuya muestra estuvo constituida por los estudiantes de grado sexto a octavo de un colegio en Bogotá D.C., a quienes se les aplicó el Test EAT-26. Se consideró que quienes obtuvieron puntaje >20 presentaban síntomas de riesgo de TCA, por lo que sus padres recibieron intervención educativa de prevención. Resultados. Se encuestaron 979 estudiantes: 523 niños y 456 niñas, hallando una prevalencia de síntomas de riesgo de TCA de 9.4%. Los estudiantes de sexo masculino de los grados inferiores presentaron mayor riesgo de padecer TCA; se observó predominio en el sexo femenino a medida que aumentó el grado escolar. Conclusión. Los varones tienen mayor tendencia a presentar síntomas de riesgo para padecer TCA, en especial en edades tempranas. Se recomienda diseñar estrategias para prevenir la aparición de este trastorno en la población escolar.

Advance provision of emergency contraception to young men: An exploratory study in a clinic setting.

PURPOSE: To explore the acceptability of advance provision of emergency contraceptive pills (ECPs) to young men seeking health care. METHODS: For this exploratory study in a clinic setting, we approached young men aged 16-35 to participate in a survey eliciting socio-demographics, sexual and contraceptive history, and knowledge about ECPs. We offered young men advance provision of ECPs and compared characteristics of 126 young men who did and did not accept the ECPs. RESULTS: Most (76%) of the participants accepted advance provision and left with an ECP pack, with even higher proportions among males whose sexual histories were suggestive of increased risk of involvement in an unintended pregnancy. CONCLUSIONS: This study holds promise to inform scale up of advance provision of ECPs among young men.

Injury risk in British Columbia, Canada, 1986 to 2009: are Aboriginal children and youth over-represented?

BACKGROUND: Children and youth worldwide are at high risk of injury resulting in morbidity, disability or mortality. Disparities in risk exist between and within countries, and by sex and ethnicity. Our aim is to contribute data on disparities of injury rates for Aboriginal children and youth compared with those of the general population in British Columbia (BC), Canada, by examining risks for the two populations, utilizing provincial administrative data over a 24-year period. METHODS: Hospital discharge records from the provincial health care database for children and youth were used to identify injury for the years 1986 to 2009. Within the total BC population, the Aboriginal population was identified. Crude rates and standardized relative risks (SRR) of hospitalization were calculated, by year and category of injury type and external cause, and compared to the total BC population for males and females under age 25 years. RESULTS: Over the 24-year period, substantive decreases were found in hospitalization injury risks for children and youth in both Aboriginal and total populations, for both sexes, and for most categories and types of injuries. Risk in overall injury dropped by 69% for the Aboriginal population and by 66% for the total BC population, yet in every year, the Aboriginal population had a higher risk than the total BC population. There were over 70% declines in risks among females of intentionally inflicted injury by another, among both the Aboriginal and total BC populations. Risk of injury caused by transport vehicles has decreased by an overwhelming 83% and 72% for the Aboriginal male population and for the total BC male population, respectively. CONCLUSIONS: The over 70% declines in risks for females of intentionally inflicted injury by another, among both the Aboriginal and total BC populations is excellent news. Risk of injury caused by transport vehicles for males decreased overwhelmingly for both populations. Disparities in rates between the Aboriginal population and total BC population remain because of similarity in the proportional reductions among the two populations. Since the Aboriginal population started at a much higher risk, in absolute terms, the gap between the two populations is shrinking.

Randomized controlled trial of 'teens and toddlers': a teenage pregnancy prevention intervention combining youth development and voluntary service in a nursery.

We conducted an independent evaluation of the "Teens and Toddlers" intervention. Our randomized trial examined effects on self-reported last sex without contraception, >1 episode of sex without contraception in previous 3 months, expectation of teenage parenthood and youth development score, plus secondary outcomes among 449 at-risk girls age 13/14 in England. The intervention involves 18-20 weekly sessions in pre-school nurseries. Response rates were 95% post-intervention and 91% one year later. At follow-up two, there was no evidence of intervention benefits for primary outcomes and a positive impact for our secondary outcome, low self-esteem. At follow-up one, there was no evidence of benefits for our primary outcomes but evidence of benefits for our secondary outcomes: low self-esteem; low sexual health knowledge; and difficulty discussing the contraceptive pill. The intervention should be refined, with a clearer logic model and more emphasis on sex education, and re-evaluated.