The international journal of behavioral nutrition and physical activity最新文献

{"title":"Prospective relations of maternal reward-related eating, pregnancy ultra-processed food intake and weight indicators, and feeding mode with infant appetitive traits.","authors":"Jenna R Cummings,&nbsp;Myles S Faith,&nbsp;Leah M Lipsky,&nbsp;Aiyi Liu,&nbsp;Jan T Mooney,&nbsp;Tonja R Nansel","doi":"10.1186/s12966-022-01334-9","DOIUrl":"https://doi.org/10.1186/s12966-022-01334-9","url":null,"abstract":"<p><strong>Background: </strong>Infant appetitive traits including eating rate, satiety responsiveness, food responsiveness, and enjoyment of food predict weight gain in infancy and early childhood. Although studies show a strong genetic influence on infant appetitive traits, the association of parent and infant appetite is understudied. Furthermore, little research examines the influence of maternal pregnancy dietary intake, weight indicators, and feeding mode on infant appetite. The present study investigated relations of maternal reward-related eating, pregnancy ultra-processed food intake and weight indicators, and feeding mode with infant appetitive traits.</p><p><strong>Methods: </strong>Mothers in the Pregnancy Eating Attributes Study (458 mothers enrolled, 367 retained through delivery) completed self-report measures of reward-related eating, and principal component analysis yielded two components: (1) food preoccupation and responsiveness and (2) reinforcing value of food. Mothers completed 24-h dietary recalls across pregnancy, and the standardized NOVA (not an acronym) system categorized recalled foods based on processing level. Maternal anthropometrics were measured across pregnancy. At infant age 6 months, mothers reported on feeding mode and infant appetitive traits. Linear regressions were conducted predicting infant appetitive traits from household income-poverty ratio (step 1); maternal reward-related eating components (step 2); pregnancy ultra-processed food intake (% of energy intake), early pregnancy body mass index, and gestational weight gain (step 3); and exclusive breastfeeding duration (step 4).</p><p><strong>Results: </strong>A 1-SD greater maternal food preoccupation and responsiveness was associated with 0.20-SD greater infant satiety responsiveness (p = .005). A 1-SD greater % energy intake from ultra-processed foods during pregnancy was associated with 0.16-SD lower infant satiety responsiveness (p = .031). A 1-SD longer exclusive breastfeeding duration was associated with 0.18-SD less infant food responsiveness (p = .014). Other associations of maternal reward-related eating, pregnancy ultra-processed food intake and weight indicators, and feeding mode with infant appetitive traits were non-significant.</p><p><strong>Conclusions: </strong>Proximal early-life environmental factors including maternal pregnancy dietary intake and feeding mode may facilitate or protect against obesogenic infant appetitive traits, whereas infant appetite may not parallel maternal reward-related eating. Further investigation into the etiology of appetitive traits early in development, particularly during solid food introduction, may elucidate additional modifiable risk factors for child obesity.</p><p><strong>Trial registration: </strong>Clinicaltrials.gov. Registration ID - NCT02217462 . Date of registration - August 13, 2014.</p>","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"100"},"PeriodicalIF":8.7,"publicationDate":"2022-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9351142/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40580990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A latent transition analysis of physical activity and screen-based sedentary behavior from adolescence to young adulthood.","authors":"Kate Parker,&nbsp;Verity Cleland,&nbsp;Jim Dollman,&nbsp;Jacqui Della Gatta,&nbsp;Jennifer Hatt,&nbsp;Anna Timperio","doi":"10.1186/s12966-022-01339-4","DOIUrl":"https://doi.org/10.1186/s12966-022-01339-4","url":null,"abstract":"<p><strong>Background: </strong>Distinct typologies of physical activity and screen-based sedentary behaviors are common during adolescence, but it is unknown how these change over time. This longitudinal study examined the stability of activity-related behavioral typologies over the transition out of secondary school.</p><p><strong>Methods: </strong>Year 11 students (penultimate school year) completed a self-report survey (baseline), which was repeated 2 years later (follow-up) (75% female, mean baseline age: 16.9 ± 0.4 years). Latent transition analysis identified typologies of physical activity and screen time behaviors and explored changes in typology membership between baseline and follow-up among those with complete data and who were not attending secondary school at follow-up (n = 803).</p><p><strong>Results: </strong>Three unique typologies were identified and labelled as: 1) Sedentary gamers (baseline: 17%; follow-up: 15%: high levels of screen behaviors, particularly video gaming); 2) Inactives (baseline: 46%; follow-up: 48%: low physical activities, average levels of screen behaviors); and 3) Actives (baseline: 37%; follow-up: 37%: high physical activities, low screen behaviors). Most participants remained in the same typology (83.2%), 8.5% transitioned to a typology with a more health-enhancing profile and 8.3% transitioned to a typology with a more detrimental behavioral profile.</p><p><strong>Conclusions: </strong>The high proportion within the 'inactive' typology and the stability of typologies over the transition period suggests that public health interventions are required to improve activity-related behavior typologies before adolescents leave secondary school.</p>","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"98"},"PeriodicalIF":8.7,"publicationDate":"2022-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9338621/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40569863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Benchmarking the nutrition-related commitments and practices of major Belgian food companies.","authors":"Iris Van Dam,&nbsp;Naomi Reimes,&nbsp;Stefanie Vandevijvere","doi":"10.1186/s12966-022-01304-1","DOIUrl":"https://doi.org/10.1186/s12966-022-01304-1","url":null,"abstract":"","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"95"},"PeriodicalIF":8.7,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9338553/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40670703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association of Changes of lifestyle behaviors before and during the COVID-19 pandemic with mental health: a longitudinal study in children and adolescents.","authors":"Mi Xiang,&nbsp;Yujie Liu,&nbsp;Shohei Yamamoto,&nbsp;Tetsuya Mizoue,&nbsp;Keisuke Kuwahara","doi":"10.1186/s12966-022-01327-8","DOIUrl":"https://doi.org/10.1186/s12966-022-01327-8","url":null,"abstract":"<p><strong>Background: </strong>We examined the prospective associations of changes in lifestyle behaviors before/during the COVID-19 pandemic, namely physical activity and screen time, with mental health. Furthermore, the impacts of physical activity and screen time on mental health during the pandemic were examined cross-sectionally.</p><p><strong>Methods: </strong>A two-wave longitudinal study was conducted among 2423 children and adolescents in Shanghai, China. Lifestyle behavior variables (physical activity and screen time) and psychological variables (depressive symptoms, anxiety, and stress) were measured using a self-reported questionnaire in January and March 2020. A series of multivariable logistic regressions were performed to examine the associations between changes in lifestyle behaviors in two waves and psychological problems. The combined associations of physical activity and screen time with psychological problems were also explored using the second wave data.</p><p><strong>Results: </strong>Compared to students with persistently short screen time before and during the COVID-19 pandemic, those with prolonged screen time (OR = 1·36 for depression, OR = 1·48 for anxiety) and those with persistently long screen time (OR = 1·70 for depression, OR = 2·13 for anxiety) reported a higher risk of psychological symptoms. The association between changes in physical activity and psychological symptoms was not statistically significant after adjustment for demographic factors, socioeconomic status, and screen time. During the COVID-19 pandemic, engaging in longer screen time (OR = 1·44 for depression, OR = 1·55 for anxiety) was associated with worsened psychological conditions, while engaging in increased physical activity (OR = 0·58 for depression, OR = 0·66 for anxiety) was associated with better psychological conditions.</p><p><strong>Conclusions: </strong>Our study suggests that promoting physical activity and limiting leisure screen time during the COVID-19 pandemic are important to prevent and mitigate psychological problems in children and adolescents. Therefore, effective interventions targeting lifestyle behaviors are needed to protect children and adolescents' physical and mental health.</p>","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"92"},"PeriodicalIF":8.7,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9321278/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40625985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The longitudinal association between objectively-measured school-day physical activity and academic achievement in US elementary school students.","authors":"Paul N Elish, Cassandra S Bryan, Peter J Boedeker, Hannah G Calvert, Christi M Kay, Adria M Meyer, Julie A Gazmararian","doi":"10.1186/s12966-022-01328-7","DOIUrl":"10.1186/s12966-022-01328-7","url":null,"abstract":"<p><strong>Background: </strong>It is recommended that school-aged children accrue 30 minutes of daily moderate-to-vigorous physical activity (MVPA) in school. Current literature is inconclusive about the long-term associations between school-based physical activity and academic achievement. In this study, we use a large sample and longitudinal design to rigorously evaluate whether school-day MVPA is associated with academic achievement.</p><p><strong>Methods: </strong>In a diverse suburban public school district, 4936 Grade 4 students were recruited in 40 elementary schools. Students wore accelerometers to measure school-day MVPA for 15 days across three semesters. Academic performance data was collected across Grade 3 fall to Grade 5 spring, including teacher-assigned grades and standardized test scores. Multilevel modeling was conducted controlling for student demographics and school characteristics.</p><p><strong>Results: </strong>Cross-sectional analyses found small negative associations in Grade 4. Grade 4 full-year mean daily school-day MVPA had β = --0.066, β = --0.063, β = --0.066, and β = --0.058 associations (p <  0.001) with Grade 4 math, reading, spelling, and writing grades respectively, and Grade 4 full-year mean daily school-day MVPA had β = --0.206 and β = --0.283 (p <  0.001) associations with Grade 4 math and English Language Arts (ELA) standardized test scores respectively out of approximately 500 points. Longitudinal analyses found no significant associations between Grade 4 full-year mean daily school-day MVPA and Grade 5 Fall course grades. Results also indicated small negative associations for students attaining 30+ minutes of daily school-day MVPA compared to those attaining less than 15 minutes, but only in Grade 4 Fall cross-sectional analyses where teacher-assigned reading, spelling, and writing grades were - 1.666, - 1.638, and - 1.993 points lower respectively (p <  0.001).</p><p><strong>Conclusion: </strong>The cross-sectional findings, while statistically significant in a negative direction, have a negligible association when translated practically. For example, even if students attained twice the recommended amount of school-day MVPA - which would constitute an approximately 300% increase from current levels - results suggest that grades would only decrease by 2 points on a 100-point scale. Furthermore, longitudinal analyses suggest school-day MVPA does not have a predictive association with course grades or standardized test scores. Findings suggest school-based MVPA implemented in accordance with recommendations does not meaningfully detract from academic progress.</p><p><strong>Trial registration: </strong>ClinicalTrials.gov , NCT03765047. Registered 05 December 2018 - Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT03765047.</p>","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"90"},"PeriodicalIF":0.0,"publicationDate":"2022-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9308117/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40532963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is altering the availability of healthier vs. less-healthy options effective across socioeconomic groups? A mega-analysis.","authors":"Rachel Pechey,&nbsp;Gareth J Hollands,&nbsp;James P Reynolds,&nbsp;Susan A Jebb,&nbsp;Theresa M Marteau","doi":"10.1186/s12966-022-01315-y","DOIUrl":"https://doi.org/10.1186/s12966-022-01315-y","url":null,"abstract":"<p><strong>Background: </strong>Availability interventions have been hypothesised to make limited demands on conscious processes and, as a result, to be less likely to generate health inequalities than cognitively-oriented interventions. Here we synthesise existing evidence to examine whether the impact of altering the availability of healthier vs. less-healthy options differs by socioeconomic position.</p><p><strong>Methods: </strong>Individual-level data (21,360 observations from 7,375 participants) from six studies (conducted online (n = 4) and in laboratories (n = 2)) were pooled for mega-analysis. Multilevel logistic regressions analysed the impact of altering the availability of healthier options on selection of a healthier (rather than a less-healthy) option by socioeconomic position, assessed by (a) education and (b) income.</p><p><strong>Results: </strong>Participants had over threefold higher odds of selecting a healthier option when the available range was predominantly healthier compared to selections when the range offered was predominantly less-healthy (odds ratio (OR): 3.8; 95%CIs: 3.5, 4.1). Less educated participants were less likely to select healthier options in each availability condition (ORs: 0.75-0.85; all p < 0.005), but there was no evidence of differences in healthier option selection by income. Compared to selections when the range offered was predominantly less-healthy, when predominantly healthier options were available there was a 31% increase in selecting healthier options for the most educated group vs 27% for the least educated. This modest degree of increased responsiveness in the most educated group appeared only to occur when healthier options were predominant. There was no evidence of any differential response to the intervention by income.</p><p><strong>Conclusion: </strong>Increasing the proportion of healthier options available increases the selection of healthier options across socioeconomic positions. Availability interventions may have a slightly larger beneficial effect on those with the highest levels of education in settings when healthier options predominate.</p>","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"88"},"PeriodicalIF":8.7,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9297538/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40520385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Systematic literature review of instruments that measure the healthfulness of food and beverages sold in informal food outlets.","authors":"Catalina Medina, Maricela Piña-Pozas, Tania C Aburto, Julissa Chavira, Uzzi López, Mildred Moreno, Armando G Olvera, Citlali Gonzalez, Terry T-K Huang, Simón Barquera","doi":"10.1186/s12966-022-01320-1","DOIUrl":"10.1186/s12966-022-01320-1","url":null,"abstract":"<p><strong>Background: </strong>Informal food outlets, defined as vendors who rarely have access to water and toilets, much less shelter and electricity, are a common component of the food environment, particularly in many non-Western countries. The purpose of this study was to review available instruments that measure the quality and particularly the healthfulness of food and beverages sold within informal food outlets.</p><p><strong>Methods: </strong>PubMed, LILACS, Web of Science, and Scopus databases were used. Articles were included if they reported instruments that measured the availability or type of healthy and unhealthy foods and beverages by informal food outlets, were written in English or Spanish, and published between January 1, 2010, and July 31, 2020. Two trained researchers reviewed the title, abstract and full text of selected articles; discrepancies were solved by two independent researchers. In addition, the list of references for selected articles was reviewed for any additional articles of relevance. The quality of published articles and documents was evaluated using JBI Critical appraisal checklist for analytical cross-sectional studies.</p><p><strong>Results: </strong>We identified 1078 articles of which 14 were included after applying the selection criteria. Three additional articles were considered after reviewing the references from the selected articles. From the final 17 articles, 13 measurement tools were identified. Most of the instruments were used in low- and middle-income countries (LMIC). Products were classified as healthy/unhealthy or produce/non-produce or processed/unprocessed based on availability and type. Six studies reported psychometric tests, whereas one was tested within the informal food sector.</p><p><strong>Conclusions: </strong>Few instruments can measure the healthfulness of food and beverages sold in informal food outlets, of which the most valid and reliable have been used to measure formal food outlets as well. Therefore, it is necessary to develop an instrument that manages to measure, specifically, the elements available within an informal one. These actions are extremely important to better understand the food environment that is a central contributor to poor diets that are increasingly associated with the obesity and Non-communicable disease (NCD) pandemic.</p>","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"89"},"PeriodicalIF":0.0,"publicationDate":"2022-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9288710/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40510608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of physical activity programs and services for older adults: a rapid review.","authors":"Marina B Pinheiro, Juliana S Oliveira, Jennifer N Baldwin, Leanne Hassett, Nathalia Costa, Heidi Gilchrist, Belinda Wang, Wing Kwok, Bruna S Albuquerque, Luiza R Pivotto, Ana Paula M C Carvalho-Silva, Sweekriti Sharma, Steven Gilbert, Adrian Bauman, Fiona C Bull, Juana Willumsen, Catherine Sherrington, Anne Tiedemann","doi":"10.1186/s12966-022-01318-9","DOIUrl":"10.1186/s12966-022-01318-9","url":null,"abstract":"<p><strong>Background: </strong>Knowledge of which physical activity programs are most effective for older adults in different sub-populations and contexts is limited. The objectives of this rapid review were to: 1) Overview evidence evaluating physical activity programs/services for older adults; and 2) Describe impact on physical activity, falls, intrinsic capacity (physical domain), functional ability (physical, social, and cognitive/emotional domains), and quality of life.</p><p><strong>Methods: </strong>We conducted a rapid review of primary studies from 350 systematic reviews identified in a previous scoping review (March 2021: PEDro, MEDLINE, CINAHL, Cochrane Database). For Objective 1, we included intervention studies investigating physical activity programs/services in adults ≥ 60 years. Of these, we included good quality (≥ 6/10 PEDro scale) randomised controlled trials (RCTs) with ≥ 50 participants per group in Objective 2.</p><p><strong>Results: </strong>Objective 1: Of the 1421 intervention studies identified from 8267 records, 79% were RCTs, 87% were in high income countries and 39% were good quality. Objective 2: We identified 87 large, good quality RCTs (26,861 participants). Overall activity promotion, structured exercise and recreation/sport had positive impacts (≥ 50% between-group comparisons positive) across all outcome domains. For overall activity promotion (21 intervention groups), greatest impacts were on physical activity (100% positive) and social outcomes (83% positive). Structured exercise (61 intervention groups) had particularly strong impacts on falls (91% positive), intrinsic capacity (67% positive) and physical functioning (77% positive). Recreation/sport (24 intervention groups) had particularly strong impacts on cognitive/emotional functioning (88% positive). Multicomponent exercise (39 intervention groups) had strong impacts across all outcomes, particularly physical activity (95% positive), falls (90% positive) and physical functioning (81% positive). Results for different populations and settings are presented.</p><p><strong>Conclusion: </strong>Evidence supporting physical activity for older adults is positive. We outline which activity types are most effective in different populations and settings.</p>","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"87"},"PeriodicalIF":0.0,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9284866/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40506129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Associations of accelerometer measured school- and non-school based physical activity and sedentary time with body mass index: IPEN Adolescent study.","authors":"Delfien Van Dyck,&nbsp;Anthony Barnett,&nbsp;Ester Cerin,&nbsp;Terry L Conway,&nbsp;Irene Esteban-Cornejo,&nbsp;Erica Hinckson,&nbsp;Lukáš Rubín,&nbsp;Elaine Rush,&nbsp;Orna Baron-Epel,&nbsp;Kelli L Cain,&nbsp;Lars Breum Christiansen,&nbsp;Mohammed Zakiul Islam,&nbsp;Josef Mitáš,&nbsp;Javier Molina-García,&nbsp;Adewale Oyeyemi,&nbsp;Harish Ranjani,&nbsp;Rodrigo Reis,&nbsp;Maria Paula Santos,&nbsp;Cindy Sit,&nbsp;Anna Timperio,&nbsp;Wan Abdul Manan Wan Muda,&nbsp;James F Sallis","doi":"10.1186/s12966-022-01324-x","DOIUrl":"https://doi.org/10.1186/s12966-022-01324-x","url":null,"abstract":"<p><strong>Background: </strong>This study examined the strength, shape and direction of associations of accelerometer-assessed overall, school- and non-school-based moderate-to-vigorous physical activity (MVPA) and sedentary time (ST) with BMI among adolescents across the world. Second, we examined whether these associations differed by study site and sex.</p><p><strong>Methods: </strong>Cross-sectional data from the IPEN Adolescent study, an observational multi-country study, were used. Participants wore an accelerometer for seven days, reported height and weight, and completed a socio-demographic survey. In total, 4852 adolescents (46.6% boys), aged 11-19 years (mean age = 14.6, SD = 1.7 years) were included in the analyses, using generalized additive mixed models.</p><p><strong>Results: </strong>Adolescents accumulated on average 41.3 (SD = 22.6) min/day of MVPA and 531.8 (SD = 81.1) min/day of ST, and the prevalence of overweight and obesity was 17.2% (IOTF), but these mean values differed by country. Linear negative associations of accelerometer-based MVPA and ST with standardized BMI scores and the likelihood of being overweight/obese were found. School-based ST and non-school-based MVPA were more strongly negatively associated to the outcomes than non-school based ST and school-based MVPA. Study site moderated the associations; adolescent sex did not. No curvilinear associations were found.</p><p><strong>Conclusions: </strong>This multi-country study confirmed the importance of MVPA as a potential protective factor against overweight/obesity in adolescents. Non-school-based MVPA seemed to be the main driver of these associations. Unexpected results were found for ST, calling for further examination in methodologically sound international studies but using inclinometers or pressure sensors to provide more precise ST measures.</p>","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"85"},"PeriodicalIF":8.7,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9284738/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40617314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Longitudinal change in physical activity and adiposity in the transition from adolescence to early adulthood: the 1993 Pelotas cohort study.","authors":"Soyang Kwon,&nbsp;Ana M B Menezes,&nbsp;Ulf Ekelund,&nbsp;Fernando C Wehrmeister,&nbsp;Helen Gonçalves,&nbsp;Bruna Gonçalves C da Silva,&nbsp;Kathleen F Janz","doi":"10.1186/s12966-022-01321-0","DOIUrl":"https://doi.org/10.1186/s12966-022-01321-0","url":null,"abstract":"<p><strong>Background: </strong>In the current Physical Activity Guidelines (PAG) for moderate- and vigorous-intensity physical activity (MVPA), abrupt transition from ≥ 60 min/day [youth PAG] to ≥ 150 min/week (≥ 22 min/day on average) [adult PAG] during emerging adulthood is poorly justified. The aim of this study was to examine body fat mass changes according to whether meeting the youth and adult PAGs in late adolescence (age 18 years) to early adulthood (age 22 years).</p><p><strong>Methods: </strong>The study sample included 2,099 participants (1,113 females) from the 1993 Pelotas (Brazil) Study. At ages 18 and 22 years, MVPA was measured using wrist-worn accelerometry and fat mass was measured using dual-energy X-ray absorptiometry. MVPA at age 18 was categorized into two groups: 0-59 or ≥ 60 min/day (no [N] or yes [Y] for meeting the youth recommendation, respectively). MVPA at age 22 was categorized into three groups: 0-21, 22-59, or ≥ 60 min/day (N, Y22, or Y60 for not meeting the adult recommendation, meeting the adult recommendation, or meeting the youth recommendation, respectively). The combination of these groups created six MVPA groups (N&N, N&Y22, N&Y60, Y&N, Y&Y22, and Y&Y60). Sex-specific multivariable linear regression analyses were conducted to estimate change in fat mass index (FMI) from age 18 to 22 years in the six MVPA groups.</p><p><strong>Results: </strong>Among males, compared to Y&Y60 (FMI increase = 1.2 kg/m² [95% CI = 1.0, 1.4]), Y&Y22 and Y&N had larger FMI increases (1.9 [1.6, 2.1] and 1.9 [1.2, 2.5], respectively). Among females, Y&Y60 and Y&Y22 had an equal FMI increase (1.6 [1.4, 1.9] for both groups), while Y&N had a larger FMI increase (2.4 [1.8, 3.0]).</p><p><strong>Conclusions: </strong>These findings suggest that among those who were active in late adolescence, engaging in ≥ 22 min/day of MVPA in adulthood is associated with lower body fat gain for females, but not for males.</p>","PeriodicalId":520799,"journal":{"name":"The international journal of behavioral nutrition and physical activity","volume":" ","pages":"83"},"PeriodicalIF":8.7,"publicationDate":"2022-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9284823/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40506127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}