Érico Pereira Gomes Felden

Translation and validation of the Pediatric Daytime Sleepiness Scale (PDSS) into Brazilian Portuguese

OBJECTIVE The aim of this study was to translate and validate the Pediatric Daytime Sleepiness Scale (PDSS) into Brazilian Portuguese. METHODS The translation/validation process was carried out through translation, back translation, technical review, assessment of verbal comprehension/clarity of the scale by experts and a focus group, test-retest, and application of the tool. The reproducibility analysis was performed by applying the PDSS in test-retest; internal consistency was verified by applying the scale in 90 children and adolescents. RESULTS The mean score of the sum of PDSS questions was 15.6 (SD=5.0) points. The PDSS showed appropriate indicators of content validation and clarity for the Brazilian Portuguese version. The internal consistency analysis showed a Cronbachs alpha of 0.784. The PDSS showed adequate reproducibility. The PDSS scores showed a significant and negative correlation with time spent in bed (r=-0.214; p=0.023). CONCLUSION The Brazilian Portuguese version of the PDSS shows satisfactory indicators of validity and can be applied in clinical practice and scientific research.

Factors associated with short sleep duration in adolescents

Abstract Objective: This study aimed to investigate the prevalence and factors associated with short sleep duration in adolescents from Maravilha – Santa Catarina (SC), southern Brazil. Methods: The sample consisted of 516 adolescents aged 10–19 years of both genders. Issues associated with short sleep duration and difficulty falling asleep, chronotype, daytime sleepiness, physical activity, sedentary behavior and weight status were investigated. Results: The prevalence of short sleep duration (<8h on school days) was 53.6%. Adolescents aged 17–19 years showed a 2.05-fold (95%CI: 1.20–3.50) greater prevalence of short sleep duration than those aged 10–12 years. The ones studying in morning and evening shifts had a higher prevalence of short sleep duration compared to those in the afternoon shift. Older age and school shift were the main factors associated with short sleep duration. Conclusions: Adolescents from Maravilha showed high prevalence of short sleep duration, and older adolescents that studied in the morning and evening shifts showed reduced sleep.

Sleep in adolescents of different socioeconomic status: a systematic review

Objective: To analyze the sleep characteristics in adolescents from different socioeconomic levels. Data source: Original studies found in the MEDLINE/PubMed and SciELO databases without language and period restrictions that analyzed associations between sleep variables and socioeconomic indicators. The initial search resulted in 99 articles. After reading the titles and abstracts and following inclusion and exclusion criteria, 12 articles with outcomes that included associations between sleep variables (disorders, duration, quality) and socioeconomic status (ethnicity, family income, and social status) were analyzed. Data synthesis: The studies associating sleep with socioeconomic variables are recent, published mainly after the year 2000. Half of the selected studies were performed with young Americans, and only one with Brazilian adolescents. Regarding ethnic differences, the studies do not have uniform conclusions. The main associations found were between sleep variables and family income or parental educational level, showing a trend among poor, low social status adolescents to manifest low duration, poor quality of sleeping patterns. Conclusions: The study found an association between socioeconomic indicators and quality of sleep in adolescents. Low socioeconomic status reflects a worse subjective perception of sleep quality, shorter duration, and greater daytime sleepiness. Considering the influence of sleep on physical and cognitive development and on the learning capacity of young individuals, the literature on the subject is scarce. There is a need for further research on sleep in different realities of the Brazilian population.

Body weight perception and body weight control behaviors in adolescents

OBJECTIVE To investigate the association between the perception of body weight (as above or below the desired) and behaviors for body weight control in adolescents. METHODS This was a cross-sectional study that included 1051 adolescents (aged 15-19 years) who were high school students attending public schools. The authors collected information on the perception of body weight (dependent variable), weight control behaviors (initiative to change the weight, physical exercise, eating less or cutting calories, fasting for 24h, taking medications, vomiting, or taking laxatives), and measured body weight and height to calculate the body mass index and then classify the weight status. Associations were tested by multinomial logistic regression analysis. RESULTS Adolescents of both sexes who perceived their body weight as below the expected weight took more initiatives to gain weight, and those who perceived themselves as overweight made more efforts to lose weight. In adolescents who perceived themselves as overweight, the behavior of not taking medication was associated with the outcome only in boys (Odds Ratio=8.12), whereas in girls, an association was observed with the variables eating less, cutting calories, or avoiding fatty foods aiming to lose or avoid increasing body weight (Odds Ratio=3.39). Adolescents of both sexes who practiced exercises were more likely to perceive themselves as overweight (male Odds Ratio=2.00; Odds Ratio=1.93 female). CONCLUSION The perception of the body weight as above and below ones expected weight was associated with weight control behaviors, which were more likely to result in initiatives to lose and gain weight, respectively.Objective To investigate the association between the perception of body weight (as above or below the desired) and behaviors for body weight control in adolescents.

Factors associated with sleep duration in Brazilian high school students

ABSTRACT The aim of this study was to investigate the factors associated with short sleep duration on southern Brazilian high school students. Our study was comprised of 1,132 adolescents aged 14 to 19 years, enrolled in public high schools in São José, Brazil. The students answered a questionnaire about working (work and workload), health perception, smoking, school schedule, sleep (duration and daytime sleepiness), and socio-demographics data. The results showed that more than two thirds of adolescent workers had short sleep duration (76.7%), and those with a higher workload (more than 20 hours) had a shorter sleep duration (7.07 hours) compared to non-workers (7.83 hours). In the analysis of factors associated with short sleep duration, adolescents who worked (OR = 2.12, 95% CI 1.53 to 2.95) were more likely to have short sleep duration compared to those who did not work. In addition, older adolescents (17–19 years) and students with poor sleep quality were 40% and 55% more likely to have short sleep duration compared to younger adolescents (14–16 years) and students with good sleep quality, respectively. Adolescents with daytime sleepiness were more likely to have short sleep duration (OR = 1.49, 95% CI 1.06 to 2.07) compared to those without excessive daytime sleepiness. In addition students of the morning shift (OR = 6.02, 95% CI 4.23 to 8.57) and evening shift (OR = 2.16, 95% CI 1.45 to 3.22) were more likely to have short sleep duration compared to adolescents of the afternoon shift. Thereby adolescents who are workers, older, attended morning and evening classes and have excessive daytime sleepiness showed risk factors for short sleep duration. In this sense, it is pointed out the importance of raising awareness of these risk factors for short sleep duration of students from public schools from São José, located in southern Brazil.

Fatores associados à insatisfação com a imagem corporal em acadêmicos de Educação Física

Objective To investigate body image dissatisfaction in physical education college students and verify which factors are specifically associated to dissatisfaction with thinness and with overweight. Methods Participated 299 college students (173 men and 126 women) with mean age of 23.14 (4.93) years, of the baccalaureate and degree courses in Physical Education, from a public university of Florianopolis-SC. Through self-applied questionnaire, the academics answered sociodemographic questions, about body image (figure rating scale) and referred their body mass and stature measurements to compute body mass index. Results The prevalence of body image dissatisfaction was 76.6% (27.4% were dissatisfied with thinness and 49.0% with overweight), being higher in females (82.5%). Binary logistic regression analysis revealed association between dissatisfaction with thinness and the variables gender (male) and weight status (normal weight) and between dissatisfaction with overweight and the variables: gender (female), weight status (overweight) and course (degree). Conclusion It is necessary that undergraduate courses have contents aimed to the student health, addressing aspects related to eating behavior, obesity, body image and the implications that it can provide in a future teaching practice.

Fatores sociodemográficos e imagem corporal em adolescentes do ensino médio

The scope of this article is to investigate associations between body image dissatisfaction and sociodemographic indicators among adolescents. Participants included 1126 high school students in the city of Santa Maria in the State of Rio Grande do Sul. Aspects regarding body image dissatisfaction and sociodemographic indicators were analyzed. Association analyses were performed using crude Poisson regression duly adjusted for sex and age. Boys were found to be dissatisfied due to slimness and girls due to excess weight. Adolescents where the parents had less schooling, as well as those from lower socioeconomic classes and with lower income were found to be more likely to have body image dissatisfaction due to slimness. However, those where the parents had completed higher education and those living in the downtown area were more likely to have body image dissatisfaction due to excess weight. Sociodemographic indicators are closely associated with body image dissatisfaction. Body image dissatisfaction due to slimness can be explained by the lower level of schooling of the parents, lower socioeconomic class and lower income. Dissatisfaction due to excess weight can be explained by the higher schooling of the parents and the fact of living in the downtown area.

Original articleBody weight perception and body weight control behaviors in adolescentsPercepção do peso corporal e comportamentos para controle de peso em adolescentes

OBJECTIVE To investigate the association between the perception of body weight (as above or below the desired) and behaviors for body weight control in adolescents. METHODS This was a cross-sectional study that included 1051 adolescents (aged 15-19 years) who were high school students attending public schools. The authors collected information on the perception of body weight (dependent variable), weight control behaviors (initiative to change the weight, physical exercise, eating less or cutting calories, fasting for 24h, taking medications, vomiting, or taking laxatives), and measured body weight and height to calculate the body mass index and then classify the weight status. Associations were tested by multinomial logistic regression analysis. RESULTS Adolescents of both sexes who perceived their body weight as below the expected weight took more initiatives to gain weight, and those who perceived themselves as overweight made more efforts to lose weight. In adolescents who perceived themselves as overweight, the behavior of not taking medication was associated with the outcome only in boys (Odds Ratio=8.12), whereas in girls, an association was observed with the variables eating less, cutting calories, or avoiding fatty foods aiming to lose or avoid increasing body weight (Odds Ratio=3.39). Adolescents of both sexes who practiced exercises were more likely to perceive themselves as overweight (male Odds Ratio=2.00; Odds Ratio=1.93 female). CONCLUSION The perception of the body weight as above and below ones expected weight was associated with weight control behaviors, which were more likely to result in initiatives to lose and gain weight, respectively.Objective To investigate the association between the perception of body weight (as above or below the desired) and behaviors for body weight control in adolescents.

Constraints to leisure-time physical activity among Brazilian workers

ABSTRACT The aim of this study was to identify perceived constraints to leisure-time physical activity (LTPA) most prevalent in Brazilian workers. Furthermore, this study aimed to analyze the types of constraints perceived in the practice of LTPA that better characterize the behaviour of active and insufficiently active workers. The study included 885 workers from a Brazilian industry. The level of physical activity and constraints practiced were analyzed, as well as sociodemographic data and work-related health factors. The most frequently perceived constraints to LTPA were ‘long working hours’ (60.3%), ‘family commitments’ (58.1%), and ‘housework’ (54.5%). Intrapersonal constraints better explained the behaviour of insufficiently active workers; moreover, for those with a regular physical activity, the constraints were environmental and structural. Long working hours and excess housework reflect low levels of physical activity in workers. The model of leisure constraints was confirmed in Brazilian workers with different levels of physical activity.

Sono e treinamento em atletas de elite do Estado de Santa Catarina, Brasil

Objetivou-se investigar algumas questoes de sono, saude e treinamento de atletas de elite do Estado de Santa Catarina - SC. Fizeram parte da amostra 452 atletas de modalidades coletivas e individuais que responderam a um questionario com questoes relacionadas ao sono (duracao e qualidade do sono, pesadelos e piora do sono antes da competicao) e sobre sua percepcao de saude. Alem disso, foi investigado se os atletas receberam, durante seus treinamentos, recomendacoes a respeito do seu sono. 48,5% dos atletas apresentaram baixa duracao do sono (< 8h). Aqueles que receberam instrucoes sobre sono no treinamento apresentaram maior duracao do sono (p < 0,001) e melhor qualidade de sono (p = 0,045). Atletas que nao tiveram instrucoes sobre o sono apresentaram 1,35 (IC95%1,02-1,78) vez mais prevalencia de baixa duracao do sono. Alem disso, a maioria dos atletas relatou que seu sono piora na vespera de competicoes e jogos importantes. Uma boa qualidade do sono esteve associada com percepcao mais positiva de saude e aqueles atletas que receberam instrucoes sobre o sono durante seus treinamentos apresentaram maior duracao e melhor qualidade do sono. Recomenda-se assim, que as instrucoes sobre sono passem a fazer parte das rotinas de treinamentos de atletas brasileiros, bem como se investigue quais informacoes e estrategias sao mais efetivas para a melhora do sono dos atletas.