scholarly journals Physical Activity in Early Adolescence and Pulmonary Function Gain From 15 to 18 Years of Age in a Birth Cohort in Brazil

2016 ◽  
Vol 13 (11) ◽  
pp. 1164-1173 ◽  
Author(s):  
Bruna Gonçalves Cordeiro da Silva ◽  
Fernando César Wehrmeister ◽  
Philip H. Quanjer ◽  
Rogelio Pérez-Padilla ◽  
Helen Gonçalves ◽  
...  
Keyword(s):  
Physical Activity ◽  
Pulmonary Function ◽  
Birth Cohort ◽  
Early Adolescence ◽  
Forced Expiratory Volume ◽  
Self Report ◽  
Birth Cohort Study ◽  
Mediation Analyses ◽  
Intensity Physical Activity ◽  
Active Leisure

Background:The aim of this study was to evaluate the association between physical activity from 11 to 15 years of age and pulmonary function (PF) gain from 15 to 18 years of age among adolescents in a birth cohort in Brazil.Methods:Longitudinal analysis of the individuals participating in the 1993 Pelotas Birth Cohort Study. Physical activity was assessed by self-report at ages 11 and 15, spirometry was performed at ages 15 and 18 (n = 3571). Outcome variables assessed were gains in forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC) and peak expiratory flow (PEF). Crude and adjusted linear regressions, stratified by sex, and mediation analyses were performed.Results:Boys who were active (leisure-time and total physical activity) at ages 11 and 15 had higher gains in FEV1, FVC, and PEF than those who were inactive. Vigorous-intensity physical activity in boys was also associated with FEV1 and FVC gains. Mediation analyses showed that height at age 18 accounted for 5% to 75% of the association between physical activity and PF gains. No significant associations were found among girls.Conclusions:Physical activity in early adolescence is associated with gains in PF by the end of adolescence in boys.

scholarly journals Characterisation of pulmonary function trajectories: results from a Brazilian cohort

2020 ◽  
Vol 6 (3) ◽  
pp. 00065-2020
Author(s):  
Priscila Weber ◽  
Ana Maria Baptista Menezes ◽  
Helen Gonçalves ◽  
Rogelio Perez-Padilla ◽  
Deborah Jarvis ◽  
...  
Keyword(s):  
Birth Weight ◽  
Family History ◽  
Pulmonary Function ◽  
Birth Cohort ◽  
Respiratory Diseases ◽  
Smoking Status ◽  
Forced Expiratory Volume ◽  
Birth Cohort Study ◽  
History Of ◽  
Brazilian Cohort

BackgroundPulmonary function (PF) trajectories are determined by different exposures throughout the life course. The aim of this study was to investigate characteristics related to PF trajectories from 15 to 22 years in a Brazilian cohort.MethodsA birth cohort study (1993 Pelotas Birth Cohort) was conducted with spirometry at 15, 18 and 22 years. PF trajectories were built based on z-score of forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and their ratio using a group-based trajectory model. Associations with exposures reported from perinatal to 22 years were described.ResultsThree trajectories, low (LT), average (AT) and high (HT) were identified in 2917 individuals. Wealthiest individuals belonged to the HT of FEV1 (p=0.023). Lower maternal pregestational body mass index (BMI) (22.4±0.2; p<0.001 and 22.1±0.14; p<0.001) and lower birth weight (3164.8±25.4; p=0.029 and 3132.3±19.4; p=0.005) were related to the LT of FEV1 and FVC. Mother's smoking exposure during pregnancy (37.7%; p=0.002), active smoking at ages 18 and 22 years (20.1% and 25.8%; p<0.001) and family history of asthma (44.8%; p<0.001) were related to the LT of FEV1/FVC. Wheezing, asthma and hospitalisations due to respiratory diseases in childhood were related to the LT of both FEV1 and FEV1/FVC. Higher BMIs were related to the HT of FEV1 and FVC at all ages.ConclusionsPF trajectories were mainly related to income, pregestational BMI, birth weight, hospitalisation due to respiratory diseases in childhood, participant's BMI, report of wheezing, medical diagnosis and family history of asthma, gestational exposure to tobacco and current smoking status in adolescence and young adult age.

scholarly journals Trajectories of maternal depressive symptoms and offspring’s risk behavior in early adolescence: data from the 2004 Pelotas birth cohort study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ana Beatriz Bozzini ◽  
Jessica Mayumi Maruyama ◽  
Tiago N. Munhoz ◽  
Aluísio J. D. Barros ◽  
Fernando C. Barros ◽  
...  
Keyword(s):  
Cohort Study ◽  
Depressive Symptoms ◽  
Alcohol Use ◽  
Maternal Depression ◽  
Risk Behavior ◽  
Birth Cohort ◽  
Depression Scale ◽  
Self Report ◽  
Birth Cohort Study ◽  
Maternal Depressive Symptoms

Abstract Background This longitudinal study explored the relationship between trajectories of maternal depressive symptoms and offspring’s risk behavior in adolescence contributing to an extremely scarce literature about the impacts of maternal depression trajectories on offspring risk behaviors. Methods We included 3437 11-year-old adolescents from the 2004 Pelotas Birth Cohort Study. Trajectories of maternal depressive symptoms were constructed using Edinburgh Postnatal Depression Scale (EDPS) from age 3 months to 11 years. We identified five trajectories of maternal depressive symptoms: “low” “moderate low”, “increasing”, “decreasing”, and “chronic high”. The following adolescent outcomes were identified via self-report questionnaire and analyzed as binary outcome –yes/no: involvement in fights and alcohol use at age 11. We used logistic regression models to examine the effects of trajectories of maternal depressive symptoms on offspring’s risk behavior adjusting for potential confounding variable. Results Alcohol use and/or abuse as well as involvement in fights during adolescence, were not significantly associated with any specific trajectory of maternal depressive symptoms neither in the crude nor in the adjusted analyses. Conclusion Alcohol use and involvement in fights at age 11 were not associated with any specific trajectory of maternal depression.

Accelerometry and Self-Report Are Congruent for Children’s Moderate-to-Vigorous and Higher Intensity Physical Activity

2021 ◽  
pp. 1-8
Author(s):  
Claudio R. Nigg ◽  
Xanna Burg ◽  
Barbara Lohse ◽  
Leslie Cunningham-Sabo
Keyword(s):  
Physical Activity ◽  
Repeated Measures ◽  
Vigorous Physical Activity ◽  
Fourth Grade ◽  
Assessment Method ◽  
Self Report ◽  
Upper Elementary ◽  
Upper Elementary School ◽  
Intensity Physical Activity

Purpose: This study used different analytic approaches to compare physical activity (PA) metrics from accelerometers (ACC) and a self-report questionnaire in upper elementary youth participating in the Fuel for Fun intervention. Methods: The PA questionnaire and ACC were assessed at baseline/preintervention (fall fourth grade), Follow-up 1/postintervention (spring fourth grade), and Follow-up 2 (fall fifth grade) of 564 fourth grade students from three elementary schools (50% females, 78% White, and 28% overweight or obese). Different analytic approaches identified similarities and differences between the two methods. Results: On average, self-report was higher than ACC for vigorous PA (range = 9–15 min/day), but lower than ACC for moderate PA (range = 24–30 min/day), light PA (range = 30–36 min/day), and moderate-to-vigorous physical activity (MVPA; range = 9–21 min/day). Spearman’s correlations for vigorous PA (.30, .26, and .32); moderate PA (.12, .13, and .14); and MVPA (.25, .25, and .24) were significant at each time point (all ps ≤ .01), whereas correlations for light PA were not significant (.06, .04, and .07; all ps > .05). In repeated-measures analyses, ACC and questionnaire measures were significantly different from each other across the three time points; however, change difference of the two measures over time was only 5.5 MVPA min/day. Conclusions: The PA questionnaire and ACC validated each other and can be used to assess MVPA in upper elementary school children in a similar population to the current study. However, each assessment method captures unique information, especially for light-intensity PA. Multiple PA measurement methods are recommended to be used in research and application to provide a more comprehensive understanding of children’s activity.

scholarly journals Size at birth and height in early adolescence: a prospective birth cohort study

2008 ◽  
Vol 24 (4) ◽  
pp. 871-878 ◽  
Author(s):  
Cora L. P. Araújo ◽  
Pedro C. Hallal ◽  
Gisele A. Nader ◽  
Ana Maria B. Menezes ◽  
Cesar G. Victora
Keyword(s):  
Cohort Study ◽  
Birth Cohort ◽  
Early Adolescence ◽  
Strong Predictor ◽  
Birth Length ◽  
Birth Cohort Study ◽  
Size At Birth ◽  
Prospective Birth Cohort ◽  
Prospective Birth Cohort Study

The aim of this study was to evaluate the association between size at birth (birthweight and birth length) and height in early adolescence in a prospective birth cohort study in Pelotas, Rio Grande do Sul, Brazil. Interviews were carried out in 1993, including measurements of birthweight and length, and in 2004-2005, including measurements of weight and height. This analysis includes 4,452 individuals, with a mean age of 11.3 years (standard deviation - SD = 0.3), representing a follow-up rate of 87.5%. Mean height at 11 years was 145.8 cm (SD = 7.9), or 144.9 cm (SD = 7.7) in boys and 146.8 cm (SD = 7.9) in girls. Birthweight and birth length were positively associated with height in early adolescence in the crude analysis, but after adjustment for confounding and for each other, only the effect of birth length was still significant. A one z-score increase in birth length was associated with a 1.63 cm increase in height at 11 years. The present study shows that birth length is a strong predictor of later height, while the effect of birth weight disappears after adjustment for birth length.

scholarly journals Experimental use of alcohol in early adolescence: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study

2010 ◽  
Vol 26 (10) ◽  
pp. 1937-1944 ◽  
Author(s):  
Ricardo B. Noal ◽  
Ana M. B. Menezes ◽  
Cora Luiza Araújo ◽  
Pedro C. Hallal
Keyword(s):  
Alcohol Use ◽  
Birth Cohort ◽  
Early Adolescence ◽  
Associated Factors ◽  
Alcohol Intake ◽  
Birth Cohort Study ◽  
Rio Grande Do Sul ◽  
Experimental Use ◽  
Parental Alcohol

The aim of this study was to estimate the prevalence of experimental alcohol intake and associated factors in early adolescence. The overall sample consisted of 4,452 adolescents (mean age = 11.3 years; SD = 0.3) from the 1993 birth cohort in Pelotas, Rio Grande do Sul State, Brazil. Experimental use of alcohol was reported by 17.5% of the interviewees (95%CI: 16.3-18.6), and 5% reported having tried alcohol at nine years of age or younger. Prevalence of experimental alcohol use was higher among adolescents whose mothers had consumed alcohol during pregnancy, whose parents consumed alcohol, who worked outside the home themselves, and who had ever tried smoking. Family strife, parental alcohol intake, and adolescent smoking were strong predictors of experimental alcohol use in early adolescence. Special attention should be targeted to these groups in order to avoid heavy and premature alcohol use in early adolescence.

scholarly journals Effects of physical activity during pregnancy on preterm delivery and mode of delivery: The Japan Environment and Children’s Study, birth cohort study

PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0206160 ◽  
Author(s):  
Mio Takami ◽  
Akiko Tsuchida ◽  
Ayako Takamori ◽  
Shigeru Aoki ◽  
Mika Ito ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cohort Study ◽  
Birth Cohort ◽  
Preterm Delivery ◽  
Mode Of Delivery ◽  
Birth Cohort Study

Perceptions of the Heart-Rate Guide

1998 ◽  
Vol 87 (1) ◽  
pp. 315-320
Author(s):  
Avery D. Faigenbaum ◽  
Joseph Ciccolo ◽  
Joseph R. Libonati
Keyword(s):  
Physical Activity ◽  
College Students ◽  
Heart Rate ◽  
Self Report ◽  
Moderate Intensity ◽  
Target Heart Rate ◽  
Heart Rates ◽  
Moderate Intensity Physical Activity ◽  
Intensity Physical Activity ◽  
Do So

Preliminary assessment was made concerning perceptions of the newly developed bean-rate guide, devised as an educational tool to promote physical activity. Unlike the traditional target heart-rate chart, the heart-rate guide illustrates the value of low to moderate intensity physical activity. Following a brief lecture about the Surgeon General's report on physical activity and health and the usefulness of heart-rate charts and guides, 120 college students ( M age 21.5 ± 2.8 yr.) completed a self-report survey consisting of statements regarding their use of target heart rates during exercise and their perceptions of the new heart-rate guide as compared to the traditional heart-rate chart. 83% of the subjects reported that the new guide better illustrated the findings from the Surgeon General's report, 5% reported no difference between the guide and the chart, and 12% reported that the chart better illustrated the report's findings ( p<.01). 48% never measure their heart rates when they exercise, 48% sometimes measure their heart rates and 4% always do so ( p< 01). While the new guide should not replace the traditional chart, these results suggest that college students perceive the heart-rate guide as a useful tool despite the fact that only a small percentage of students regularly measure their heart rates when they exercise.

scholarly journals Objective Versus Self-Reported Physical Activity in Overweight and Obese Young Adults

2015 ◽  
Vol 12 (10) ◽  
pp. 1394-1400 ◽  
Author(s):  
John M. Jakicic ◽  
Wendy C. King ◽  
Bethany Barone Gibbs ◽  
Renee J. Rogers ◽  
Amy D. Rickman ◽  
...  
Keyword(s):  
Physical Activity ◽  
Young Adults ◽  
Body Fat ◽  
Objective Measure ◽  
Interquartile Range ◽  
Self Report ◽  
Percent Body Fat ◽  
Intensity Physical Activity ◽  
Global Physical Activity Questionnaire ◽  
Activity Questionnaire

Background:To compare moderate-to-vigorous intensity physical activity (MVPA) assessed via questionnaires to an objective measure of MVPA in overweight or obese young adults.Methods:MVPA was assessed in 448 [median BMI = 31.2 (Interquartile Range: 28.5–34.3) kg/m2] young adults [median age: 30.9 (Interquartile Range: 27.8–33.7) years]. Measures included the SenseWear Armband (MVPAOBJ), the Paffenbarger Questionnaire (MVPAPAFF), and the Global Physical Activity Questionnaire (GPAQ). The GPAQ was used to compute total MVPA (MVPAGPAQ-TOTAL) and MVPA from transportation and recreation (MVPAGPAQ-REC).Results:The association between MVPAOBJ and MVPAPAFF was rs = 0.40 (P < .0001). Associations between MVPAOBJ and MVPAGPAQ-TOTAL and MVPAGPAQ-REC were rs = 0.19 and rs = 0.32, respectively (P < .0001). MVPAGPAQ-TOTAL was significantly greater than MVPAOBJ (P < .0001). Median differences in MET-min/week between MVPAOBJ and MVPAPAFF or MVPAGPAQ-REC were not significantly different from zero. There was proportional bias between each self-reported measure of MVPA and MVPAOBJ. There were significant associations between all measures of MVPA and fitness. MVPAOBJ was significantly associated with BMI and percent body fat.Conclusions:Objective and self-reported measures of MVPA are weakly to moderately correlated, with substantial differences between measures. MVPAOBJ provided predictive validity with fitness, BMI, and percent body fat. Thus, an objective measure of MVPA may be preferred to self-report in young adults.

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