Relative proportion of vigorous physical activity, total volume of moderate to vigorous activity, and body mass index in youth: the Millennium Cohort Study

In this study, we assessed the influences of change in moderate-to-vigorous physical activity (MVPA)/sedentary time (ST) of caregivers participating in a commercial weight-loss program on their children’s change in MVPA/ST. Data from 29 caregivers and their children were collected over 8 weeks. We used multivariable linear regression to assess associations of changes in caregiver’s percent of time spent in MVPA/ST and changes in their child’s percent of time spent in MVPA/ST. For caregivers that decreased body mass index (BMI) over 8 weeks, changes in caregivers’ MVPA was strongly associated with the change in children’s MVPA (β = 2.61 [95% CI: 0.45, 4.77]) compared to caregivers who maintained/increased BMI (β = 0.24 [–2.16, 2.64]). Changes in caregivers’ ST was strongly associated with changes in children’s ST (β = 2.42 [1.02, 3.81]) compared to caregivers who maintained/increased BMI (β = 0.35 [–0.45, 1.14]). Findings reinforce encouraging caregivers to enroll in weight-loss programs for the benefit of their children as well as for themselves.

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Effect modification of cardiorespiratory fitness, obesity, and physical activity in adults

International Journal of Sports Medicine ◽

10.1055/a-1562-6014 ◽

2021 ◽

Author(s):

Maria do Socorro Simoes ◽

Fernando Wehrmeister ◽

Marcello Romiti ◽

Antonio de Toledo Gagliardi ◽

Rodolfo Arantes ◽

...

Keyword(s):

Physical Activity ◽

Body Mass Index ◽

Body Mass ◽

Cardiorespiratory Fitness ◽

Vigorous Physical Activity ◽

Clinical Information ◽

Cross Sectional Study ◽

Effect Modification ◽

Cross Sectional ◽

Arterial Blood

We investigated if cardiorespiratory fitness modifies the association between obesity and the level of physical activity. In this cross-sectional study, we analyzed data from 746 adults, free of diagnosed cardiorespiratory or locomotor diseases. We analyzed sociodemographic and clinical information, cardiovascular risk factors, cardiorespiratory fitness, anthropometry, and level of physical activity (time spent in moderate-to-vigorous physical activity). Those that spent more time in moderate-to-vigorous physical activity were younger, male, with lower body mass index, without self-reported arterial blood hypertension, diabetes and dyslipidemia, non-smokers, and presented with better cardiorespiratory fitness. The linear regression coefficients showed that cardiorespiratory fitness changes according to the level of physical activity and body mass index (obesity in low cardiorespiratory fitness: β 6.0, p = 0.213, 95%CI -3.5 to 15.6; in intermediate cardiorespiratory fitness: β 6.3, p = 0.114, 95%CI -1.5 to 14.2; in high cardiorespiratory fitness: β -6.3, p = 0.304, 95%CI -18.4 to 5.8). This effect modification trend was present after adjusting the model by covariates. Cardiorespiratory fitness potentially modifies the association between body mass index and the level of physical activity. It should be routinely assessed to identify persons with overweight/ obesity with low/ intermediate cardiorespiratory fitness to prescribe individualized training.

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Objectively measured physical activity levels in physical education classes and body mass index (Niveles de actividad física medida objetivamente en las clases de educación física y el índice de masa grasa)

Retos ◽

10.47197/retos.v0i31.53502 ◽

2016 ◽

pp. 271-274

Author(s):

Manuela Costa ◽

Tânia Oliveira ◽

Jorge Mota ◽

Maria Paula Santos ◽

José Carlos Ribeiro

Keyword(s):

Physical Activity ◽

Body Mass Index ◽

Public Schools ◽

Physical Education ◽

Body Mass ◽

Vigorous Physical Activity ◽

The Body ◽

Activity Levels ◽

Relative Contribution ◽

Objectively Measured

Objective: The objective of this study was twofold. First, analyze physical activity (PA) levels during physical education (PE) with different durations (45 and 90 minutes) according to student’s obesity status. Secondly, we examine the relative contribution of 45 and 90 minutes PE (45PE and 90PE) for the compliance of the daily PA recommendations according to the body mass index (BMI). Methods: Four public schools were analyzed. The sample comprised 472 youngsters (266 girls) aged between 10 and 18 years old. PA was assessed using an Actigraph accelerometer. The participants were categorized as non-overweight (NOW) and overweight/obese (OW) according to the sex-adjusted BMI. Results: The proportion of Moderate and Vigorous Physical Activity (MVPA) was lower than the 50% recommended by guidelines regardless the PE duration. Our data showed that only 26% of NOW and 13% of OW in the 45PE achieved the recommended levels while 17% of NOW and 11% of OW achieved the recommendation in 90PE. Overall, the 90PE had a higher absolute contribution for daily MVPA recommendations compliance than 45PE. Conclusion: During PE classes youngsters spent a reduced amount of time in MVPA, independently of their weight status.Resumen. Objetivo: Este estudio tiene un doble objetivo. En primero lugar, analizar los niveles de la actividad física durante la educación física con diferentes duraciones (45 y 90 minutos) de acuerdo con el estado de la obesidad de los alumnos. En segundo lugar, se analiza la contribución relativa de 45 y 90 minutos de la educación física para el cumplimiento de las recomendaciones diarias de actividad física según el índice de masa grasa. Métodos: cuatro escuelas públicas fueran analizadas. La muestra fue de 472 jóvenes (266 chicas) con edades entre los 10 y 18 años. La actividad física fue medida utilizando un acelerómetro Actigraph. Los participantes fueran clasificados como sin sobrepeso y con sobrepeso/obesidad de acuerdo con el índice de masa grasa ajustado al género. Resultados: La proporción de la actividad física moderada y vigorosa fue inferior al 50% recomendado por las recomendaciones independiente de la duración de la clase de educación física. Nuestros datos muestran que solo unos 26% de los niños sin sobrepeso y unos 13% de niñoss con sobrepeso/obesidad llegaron al los niveles recomendados en las clases de 45 min, mientras el 17% de los jóvenes sin sobrepeso y el 11% con sobrepeso/obesidad han logrado las recomendaciones en las clases de 90 min. En general, las clases de 90 min tienen una mayor contribución para cumplimiento de las recomendaciones diarias de actividad física moderada a vigorosa do que las clases de 45 min. Conclusión: Durante las clases de educación física los jóvenes tuvieran una cantidad reducida de tiempo en actividad física moderada a vigorosa, independiente de su estado de peso.

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Impaired vision and physical activity in childhood and adolescence: findings from the Millennium Cohort Study

British Journal of Ophthalmology ◽

10.1136/bjophthalmol-2021-320315 ◽

2021 ◽

pp. bjophthalmol-2021-320315

Author(s):

Lisanne Andra Horvat-Gitsels ◽

Mario Cortina-Borja ◽

Ameenat Lola Solebo ◽

Jugnoo Sangeeta Rahi

Keyword(s):

Physical Activity ◽

Cohort Study ◽

Vigorous Physical Activity ◽

Childhood And Adolescence ◽

Millennium Cohort Study ◽

Impaired Vision ◽

Age Related ◽

High Participation ◽

The Uk ◽

Recommended Level

Background/aimsInvestigate if impaired vision is associated with reduced levels and differences in types of physical activity (PA) to identify barriers or enablers to achieving healthy PA levels.MethodsData from the Millennium Cohort Study of children born in the UK in 2000–2001 and followed-up to age 14 years (n=11 571). Using parental report on eye conditions coded by clinicians, children were categorised as having no, unilateral or bilateral impaired vision. Outcomes included objective accelerometer-derived time spent in moderate-to-vigorous physical activity (MVPA), and 16 PA types reported by parents, teachers and/or participants, covering physical education (PE), organised sports, self-organised sports and hobbies.ResultsOverall, 50% of 7-year-olds and subsequently 41% as 14-year-olds achieved the internationally recommended level of ≥60 MVPA min/day, irrespective of vision status, and mainly attributable to PE and organised sports. Bilateral impaired vision (vs none) was associated with parent-reported difficulties with PE (adjusted OR, 4.67; 95% CI, 2.31 to 9.41), self-rated poor ability in PE (3.21; 1.44 to 7.15) and not enjoy indoor PA (0.48; 0.26 to 0.88). Unilateral impaired vision was associated with both parent-rated difficulties (1.80; 1.26 to 2.59) and teachers’ perception of low ability in PE (2.27; 1.57 to 3.28), and reduced odds of high participation in organised sports (0.77; 0.59 to 0.99). Age-related trajectories showed suboptimal PA in childhood tracked into adolescence, with no difference by vision status.ConclusionPopulation-wide programmes to increase PA levels in children should pay special attention to those with impaired vision and include early interventions to encourage participation and confidence in PE and organised sports, starting in primary school and maintained afterwards.

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Abstract 15499: Children After Fontan have the Strength, Body Composition, and Daily Moderate-to-Vigorous Physical Activity Required for Successful Participation with Peers

Circulation ◽

10.1161/circ.130.suppl_2.15499 ◽

2014 ◽

Vol 130 (suppl_2) ◽

Author(s):

Patricia E Longmuir ◽

Mary Corey ◽

Guy Faulkner ◽

Jennifer L Russell ◽

Brian W McCrindle

Keyword(s):

Physical Activity ◽

Body Mass Index ◽

Body Composition ◽

Body Mass ◽

Daily Activity ◽

Vigorous Physical Activity ◽

Cross Sectional Study ◽

Mean Difference ◽

Daily Physical Activity ◽

Cross Sectional

Introduction: This cross-sectional study evaluated the healthy, active lifestyle capacity (daily physical activity, strength, flexibility, body composition) of children after Fontan, which was hypothesized to be lower than healthy peers. Methods: Participants (n=64, 25 female) were 9 ± 2 years of age. Fontan completion occurred at 3 ± 1 years of age. Canadian Health Measures Survey protocols assessed aerobic endurance (walking up/down steps at set pace), strength (handgrip dynamometry), flexibility (sit and reach), body composition (body mass index) and daily moderate-to-vigorous physical activity (7-day accelerometry). Participant versus published norm differences were evaluated with t-tests. Linear regression evaluated associations with age/gender/demographic factors. Results: Children after Fontan had strength scores similar (mean difference 1 kg) to their peers, were less likely to be obese (mean difference of body mass index = 1.1 ± 2.5, p=.001) and performed 50 minutes of moderate-to-vigorous activity per day. Estimated maximal aerobic endurance (mean difference = 21 ± 3 ml/kg/min or 61% of expected) and flexibility (mean difference = 9 ± 8 cm or 64% of expected) were lower than peers(p<.001). Participants performed fewer minutes of daily activity (mean difference from normal 12 ± 17 minutes/day, p<.001), but almost all (60/63) demonstrated the capacity for at least 20 minutes per day. Daily activity was higher with Fontan completion at a younger age (4 ± 2 mins/year) and for those taking antithrombotic medication (7 ± 18 and 22 ± 17 fewer minutes/day for those taking/not taking antithrombotics, respectively). Conclusions: Children after Fontan demonstrate the capacity to successfully perform the daily physical activity associated with optimal health. They have similar levels of strength and good body composition. We recommend that children after Fontan be counselled to expect that they can successfully participate in physically active peer play.

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Pre-pregnancy body mass index and breastfeeding initiation, early cessation and longevity: evidence from the first wave of the UK Millennium Cohort Study

Journal of Epidemiology & Community Health ◽

10.1136/jech-2017-209074 ◽

2018 ◽

Vol 72 (12) ◽

pp. 1124-1131 ◽

Cited By ~ 4

Author(s):

Tammy Campbell ◽

Nichola Shackleton

Keyword(s):

Body Mass Index ◽

Cohort Study ◽

Body Mass ◽

Unintended Consequences ◽

Breastfeeding Initiation ◽

Millennium Cohort Study ◽

Pregnancy And Delivery ◽

Nationally Representative ◽

Uk Millennium Cohort Study ◽

The Uk

BackgroundInternational evidence indicates relationships between pre-pregnancy body mass index (BMI) and breastfeeding behaviours. This study aims to assess associations between key points in the breastfeeding trajectory (initiation, early cessation and longevity) and pre-pregnancy BMI in a recent, nationally representative British cohort. It also aims to explore in the British context potential moderation by mothers’ ethnic group.MethodsThe sample comprises 17 113 mothers from the UK Millennium Cohort Study who have information on pre-pregnancy BMI. Associations between pre-pregnancy BMI categories and breastfeeding initiation, early cessation and longevity are tested using logistic regression. Directed acyclic graphics identify appropriate minimal adjustment to block biasing pathways and classify total and direct effects.ResultsAfter adjusting for confounders, there are large differences in breastfeeding early cessation and longevity by pre-pregnancy BMI group. Differences in propensity to initiation are negligible. Having begun breastfeeding, overweight and obese mothers are more likely to cease in the first week and less likely to continue past 4 months. Observed potential mediators within pregnancy and delivery provide little explanation for relationships. Evidence for moderation by ethnicity is scant.ConclusionsThe causal mechanisms underlying relationships between pre-pregnancy overweight, obesity, and breastfeeding behaviours require further research. However, this study suggests pre-pregnancy BMI as one predictive measure for targeting support to women less likely to establish breastfeeding in the early days, and to continue beyond 4 months. The nature of support should carefully be considered and developed, with mind to both intended and potential unintended consequences of intervention given the need for additional investigation into the causes of associations.

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Effects of Age and Body Mass Index on Accuracy of Simple Moderate Vigorous Physical Activity Monitor Under Controlled Condition

ANTI-AGING MEDICINE ◽

10.3793/jaam.8.41 ◽

2011 ◽

Vol 8 (4) ◽

pp. 41-47 ◽

Cited By ~ 1

Author(s):

Makoto Ayabe ◽

Junichiro Aoki ◽

Hideaki Kumahara ◽

Kojiro Ishii ◽

Yoshikazu Yonei ◽

...

Keyword(s):

Physical Activity ◽

Body Mass Index ◽

Body Mass ◽

Vigorous Physical Activity ◽

Activity Monitor

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Body Mass Index and Vigorous Physical Activity and the Risk of Heart Failure Among Men

Circulation ◽

10.1161/circulationaha.108.807289 ◽

2009 ◽

Vol 119 (1) ◽

pp. 44-52 ◽

Cited By ~ 154

Author(s):

Satish Kenchaiah ◽

Howard D. Sesso ◽

J. Michael Gaziano

Keyword(s):

Physical Activity ◽

Heart Failure ◽

Body Mass Index ◽

Body Mass ◽

Vigorous Physical Activity

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Does SuperPark Make Children Less Sedentary? How Visiting a Commercial Indoor Activity Park Affects 7 to 12 Years Old Children’s Daily Sitting and Physical Activity Time

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph15081595 ◽

2018 ◽

Vol 15 (8) ◽

pp. 1595 ◽

Cited By ~ 1

Author(s):

Arto Pesola ◽

Martti Melin ◽

Anssi Vanhala ◽

Ying Gao ◽

Taija Finni

Keyword(s):

Physical Activity ◽

Body Mass Index ◽

Body Mass ◽

Vigorous Physical Activity ◽

Health Benefits ◽

Physical Activities ◽

Sitting Time ◽

Activity Time ◽

Improve Health

Commercial indoor activity parks provide children with a variety of entertaining physical activities. This study examined whether visiting SuperPark affects total daily sitting and physical activity time. The participants (8 girls and 7 boys, aged 10.3 ± 1.9 years, height 144.5 ± 11.8 cm, body mass index (BMI) 19.3 ± 3.0 kg/m2) wore a thigh-worn accelerometer during a normal week and were provided free tickets to visit SuperPark on at least one day. On average, the children spent 3.3 ± 1.2 h in SuperPark. During the visits the children had 0.9 h less sitting (0.7 ± 0.3 h, p = 0.000) and 0.9 h more moderate-to-vigorous physical activity (MVPA; 1.4 ± 0.6 h, p = 0.002) as compared to the reference periods on days without a SuperPark visit (1.6 ± 0.3 h sitting and 0.5 ± 0.4 h MVPA). During the days when visiting SuperPark, sitting time decreased 1.0 h (5.8 ± 0.9 h, p = 0.008) and MVPA increased 0.8 h (3.0 ± 1.0 h, p = 0.017) as compared to the reference days (6.8 ± 1.1 h sitting and 2.2 ± 0.8 h MVPA). The effects were more pronounced during weekdays than weekends. The children spent more than three hours in SuperPark on one visit, of which almost a half was MVPA. During the whole day, one hour of sitting was replaced with MVPA, suggesting that visiting SuperPark has the potential to improve health. Whether children continue visiting SuperPark and gain health benefits merits investigation.

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