scholarly journals The Relationship between Physical Activity Variety and Objectively Measured Moderate-to-Vigorous Physical Activity Levels in Weight Loss Maintainers and Normal-Weight Individuals

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Dale S. Bond ◽  
Hollie A. Raynor ◽  
Suzanne Phelan ◽  
Jeremy Steeves ◽  
Richard Daniello ◽  
...  
Keyword(s):  
Physical Activity ◽  
Weight Loss ◽  
Weight Control ◽  
Vigorous Physical Activity ◽  
Weight Maintenance ◽  
Normal Weight ◽  
Activity Levels ◽  
Objectively Measured ◽  
The Relationship

Given the importance of physical activity (PA) for weight control, identifying strategies to achieve higher PA levels is imperative. We hypothesized that performing a greater variety of self-reported moderate-to-vigorous activities (MVPAs) would relate to higher objectively measured MVPA minutes in two groups who were successfully maintaining their body weight: weight loss maintainers (WLM/n=226) and normal-weight individuals (NW/n=169). The Paffenbarger Questionnaire and RT3 accelerometer were used to determine variety/number of different MVPAs performed and MVPA minutes, respectively. The variety/number of different activities performed by WLM and NW was similar (1.8 ± 1.2 versus 1.7 ± 1.2,P=0.52). Regression analyses showed that greater variety (P<0.01) and WLM status (P<0.05) were each positively related to greater MVPA minutes/day and meeting the ≥250 MVPA minutes/week guideline for long-term weight maintenance. The association between greater variety and higher MVPA was similar in NW and WLM. Future studies should test whether variety can facilitate engagement in higher MVPA levels for more effective weight control.

scholarly journals The Positive Relationship between Moderate-to-Vigorous Physical Activity and Bone Mineral Content Is Not Mediated by Free Leptin Index in Prepubertal Children: The PANIC Study

2021 ◽  
Vol 18 (10) ◽  
pp. 5365
Author(s):  
Annie M. Constable ◽  
Josie E. Porter ◽  
Danielle Benger ◽  
Dimitris Vlachopoulos ◽  
Alan R. Barker ◽  
...  
Keyword(s):  
Physical Activity ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Mineral Content ◽  
Vigorous Physical Activity ◽  
Normal Weight ◽  
Cross Sectional ◽  
Prepubertal Children ◽  
Total Body ◽  
The Relationship

Purpose: Moderate-to-vigorous physical activity (MVPA) positively influences bone mineral content (BMC) in prepubertal children, but it is unknown whether this relationship is partially mediated by free leptin index. The aim of this study was to examine whether the relationship between MVPA and total body less head (TBLH) BMC is mediated or moderated by free leptin index in prepubertal children. Methods: We performed a cross-sectional analysis on 401 children (194 girls) from baseline examinations of the Physical Activity and Nutrition in Childhood Study. We applied the four-way decomposition mediation analysis method to assess whether free leptin index, measured from fasted blood samples, mediated the relationship between accelerometer-measured MVPA and TBLH BMC measured by dual-energy X-ray absorptiometry. Results: MVPA had a positive controlled direct effect on TBLH BMC in girls and boys (β = 0.010 to 0.011, p < 0.05). There was no mediation or interaction between MVPA, free leptin index and TBLH BMC in girls or boys (β = −0.000 to 0.001, p > 0.05). Conclusion: Our study indicates that MVPA positively influences TBLH BMC through pathways not related to free leptin index in predominantly normal-weight prepubertal children, likely primarily through mechanical loading. The relationships between MVPA, free leptin index and TBLH BMC may be influenced by other factors such as pubertal status and adiposity, so it is unknown whether these observations extend to overweight and obese children at different stages of puberty.

scholarly journals Objectively Measured Physical Activity and Sedentary Time among Children and Adolescents in Morocco: A Cross-Sectional Study

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Issad Baddou ◽  
Asmaa El Hamdouchi ◽  
Imane El Harchaoui ◽  
Kaoutar Benjeddou ◽  
Naima Saeid ◽  
...  
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Cardiovascular Health ◽  
Sedentary Time ◽  
Vigorous Physical Activity ◽  
Physical Activity Guideline ◽  
Activity Levels ◽  
Cross Sectional ◽  
Physical Activity Levels ◽  
Objectively Measured

Background. Regular physical activity in childhood and adolescent plays an important role in reducing the risk of cardiovascular health diseases, diabetes, and obesity in adulthood. However, little is known about physical activity levels (PA) and sedentary time among children and adolescents in Morocco. Objective. To examine gender, type of day, and age grade differences in objectively measured sedentary time, physical activity levels, and physical activity guideline attainment among children and adolescents in Morocco. Method. 172 children/adolescents (mean age = 10.92 ± 1.55 years, 49.4% are boys) were recruited for this study and wore a tri-axial accelerometer (GT3X+) for 7 consecutive days. Time spent in sedentary, PA levels, and daily steps were measured and compared according to gender, age grade, and the type of day (weekdays/weekends). Results. In weekdays children/adolescents spent more time in sedentary than weekends (p < 0.001). Boys were eight times more likely to meet the recommendation for at least 60 min of moderate to vigorous physical activity per day than girls (OR: 8.569; 95% [CI]: 4.23–17.32), p < 0.001. Conclusion. These findings highlight the need for effective and sustainable strategies and programs aiming to promote physical activity and to reduce sedentary behavior among children and adolescents in Morocco.

scholarly journals 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 ◽  
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.

scholarly journals Leading by Example: Association Between Mother and Child Objectively Measured Physical Activity and Sedentary Behavior

2020 ◽  
pp. 1-12
Author(s):  
Brad R. Julius ◽  
Amy M.J. O’Shea ◽  
Shelby L. Francis ◽  
Kathleen F. Janz ◽  
Helena Laroche
Keyword(s):  
Physical Activity ◽  
Sedentary Behavior ◽  
Low Income ◽  
Multivariate Regression ◽  
Sedentary Time ◽  
Vigorous Physical Activity ◽  
Mother And Child ◽  
Low Income Mothers ◽  
Objectively Measured ◽  
The Relationship

Purpose: The authors examined the relationship between mother and child activity. Methods: The authors compared moderate–vigorous physical activity (MVPA) and sedentary time of low-income mothers with obesity and their 6- to 12-year-old children on week (WD) and weekend (WE) days. A total of 196 mother–child pairs wore accelerometers simultaneously for a week. Mothers completed questionnaires. Spearman correlation and multivariate regression were used. Results: WE MVPA (accelerometry) was significantly correlated between mothers with children aged 6–7 (rs = .35) and daughters (rs = .27). Self-reported maternal PA time spent with one of their children was significantly correlated with the WE MVPA of all children (rs = .21) and children aged 8–10 (rs = .22) and with the WD MVPA of all children (rs = .15), children aged 8–10 (rs = .23), aged 11–12 (rs = .52), and daughters (rs = .37), and inversely correlated to the WD sedentary time of all children (rs = −.21), children aged 8–10 (rs = −.30), aged 11–12 (rs = −.34), daughters (rs = −.26), and sons (rs = −.22). In multivariate regression, significant associations were identified between reported child–mother PA time together and child MVPA and sedentary time (accelerometry). Conclusions: Mothers may influence the PA levels of their children with the strongest associations found in children aged 6–7 and daughters. Mother–child coparticipation in PA may lead to increased child MVPA and decreased sedentary behavior.

scholarly journals Walk Score and objectively measured physical activity within a national cohort

2019 ◽  
Vol 73 (6) ◽  
pp. 549-556 ◽  
Author(s):  
Erica Twardzik ◽  
Suzanne Judd ◽  
Aleena Bennett ◽  
Steven Hooker ◽  
Virginia Howard ◽  
...  
Keyword(s):  
Physical Activity ◽  
Racial Differences ◽  
Vigorous Physical Activity ◽  
Direct Effects ◽  
Walk Score ◽  
National Cohort ◽  
Objectively Measured ◽  
The Relationship ◽  
Objectively Measured Physical Activity ◽  
Daily Time

BackgroundThere have been mixed findings regarding the relationship between walkability and level of physical activity in adults.MethodsParticipants from The REasons for Geographic and Racial Differences in Stroke (REGARDS) national cohort (N=7561) were used to examine the association between Walk Score and physical activity measured via accelerometry. The subsample included geographically diverse adults, who identified as black or white, and were over the age of 45. Linear regression was used to examine the direct effects, as well as the interaction, of Walk Score by sex, age and race.ResultsThe majority of participants lived in a ‘Very Car-Dependent’ location (N=4115). Only 527 lived in a location that was ‘Very Walkable/Walker’s Paradise’. Living in a location with a Walk Score of ‘Very Car-Dependent’ compared with ‘Very Walkable/Walker’s Paradise’ was associated with 19% (0.81; 95% CI 0.73 to 0.90) lower predicted minutes of moderate to vigorous physical activity per day, after adjustment for covariates. There was no evidence of statistically significant interactions between Walk Score and sex, age or race (p>0.05).ConclusionAccumulated daily time in moderate to vigorous physical activity was higher for participants living in neighbourhoods designated as ‘Very Walkable/Walker’s Paradise’. This effect was not moderated by sex, age or race of participants.

scholarly journals Continuous, objective measurement of physical activity during chemotherapy for breast cancer: the Activity in Treatment pilot study

2019 ◽  
Vol 10 (4) ◽  
pp. 1031-1038 ◽  
Author(s):  
Sandahl H Nelson ◽  
Lauren S Weiner ◽  
Loki Natarajan ◽  
Barbara A Parker ◽  
Ruth E Patterson ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Physical Activity ◽  
Average Rate ◽  
Vigorous Physical Activity ◽  
Activity Patterns ◽  
Early Period ◽  
Activity Levels ◽  
Potential Benefits ◽  
Objectively Measured ◽  
Restricted Cubic Splines

Abstract Despite many potential benefits of physical activity during and after breast cancer treatment, activity levels typically decline from pre- to posttreatment. Most previous research has relied on self-reported activity. The purpose of this study were to assess patterns of daily, to objectively measured physical activity throughout chemotherapy for breast cancer, and to identify predictors of physical activity patterns. Participants were given a Fitbit before starting chemotherapy and asked to wear it throughout chemotherapy. Restricted cubic splines assessed nonlinear patterns of Fitbit measured total physical activity (TPA) and moderate-to-vigorous physical activity (MVPA) throughout the duration of chemotherapy (mean = 17 weeks, standard deviation [SD] = 6.3). Mixed-effects regression models assessed the rate of physical activity decline. Regressions of subject-level random slope assessed predictors of the rate of physical activity decline on participant and cancer characteristics and self-reported physical and cognitive functioning. Participants (n = 32) were on average 50 years old; the majority had stage II breast cancer. MVPA declined linearly at a mean rate of 1.4 min/day (p = .002) for every 10% of chemotherapy completed, whereas TPA declined linearly at an average rate of 13.4 min/day (p = .0007) for every 10% of chemotherapy completed, until around halfway through chemotherapy, when activity rates leveled off. HER+ receptor status was associated with a greater rate of MVPA decline, β = 13.3, p = .04. This novel study of objectively measured daily MVPA throughout chemotherapy showed that most reductions in activity occurred during the first half of a course of chemotherapy. Targeting this early period of chemotherapy may be important for preventing declines in activity levels throughout chemotherapy.

scholarly journals Toward a Better Understanding of the Link Between Parent and Child Physical Activity Levels: The Moderating Role of Parental Encouragement

2015 ◽  
Vol 12 (9) ◽  
pp. 1238-1244 ◽  
Author(s):  
Eleanor B. Tate ◽  
Anuja Shah ◽  
Malia Jones ◽  
Mary Ann Pentz ◽  
Yue Liao ◽  
...  
Keyword(s):  
Physical Activity ◽  
Vigorous Physical Activity ◽  
Physical Activity Promotion ◽  
Activity Levels ◽  
Linear Regression Models ◽  
Parental Encouragement ◽  
Activity Promotion ◽  
Objectively Measured ◽  
Moderating Role

Background:Research on adolescent physical activity is mixed regarding the role of parent activity. This study tested parent encouragement, direct modeling, and perceived influence as moderators of objectively-measured (accelerometer) parent and child moderate-to-vigorous physical activity (MVPA) associations.Methods:Parent-child dyads (n = 423; mean child age = 11.33 yrs.) wore accelerometers for 7 days; parents completed surveys. Hierarchical linear regression models tested moderation using a product of constituent terms interaction.Results:Parent-reported encouragement moderated the association between parent and child MVPA (β = –.15, P = .01, ΔR2 = .02, P < .01). Among parents with lower MVPA, child MVPA was higher for children receiving high encouragement (mean = 3.06, SE = .17) vs. low (mean = 3.03, SE = .15, P = .02) and moderate encouragement (mean = 3.40, SE = .09) vs. low (P = .04).Conclusions:Physical activity promotion programs may use parent encouragement as a tool to boost child activity, but must consider other child and parent characteristics that could attenuate effects.

scholarly journals Physical Activity Trends of Finnish Adolescents With Long-Term Illnesses or Disabilities From 2002–2014

2016 ◽  
Vol 13 (8) ◽  
pp. 816-821 ◽  
Author(s):  
Kwok Ng ◽  
Pauli Rintala ◽  
Jorma Tynjälä ◽  
Raili Välimaa ◽  
Jari Villberg ◽  
...  
Keyword(s):  
Physical Activity ◽  
Vigorous Physical Activity ◽  
Binary Logistic Regression ◽  
Activity Level ◽  
Binary Logistic Regression Analysis ◽  
Activity Levels ◽  
Physically Active ◽  
Sports Club ◽  
Club Membership

Background:Adolescents’ physical activity level is a major source of concern. For adolescents with long-term illnesses or disabilities (LTID), being physically active can prevent secondary conditions. This is one of the first studies reporting trends in physical activity of adolescents with LTID in relation to gender, age, and sports club membership.Methods:Data were collected from the Health Behavior in School-aged Children study in Finland during 2002, 2006, 2010, and 2014. In 13- and 15-year-olds (N = 2206), 17.1% reported having LTID. Daily physical activity recall was the dependent variable. Binary logistic regression analysis was conducted eparately for sports club members (n = 936) and nonmembers (n = 1270).Results:The proportion of physically active adolescents with LTID in 2014 was higher than in 2002 for girls (15.6% vs 8.7%) and boys (26.6% vs 13.0%). Girl sports club members were 2 times more likely to be physically active in 2014 than in 2002. The largest trend between 2014 and 2002 was among boy nonmembers (odds ratio: 4.62, 95% confidence interval, 2.02–10.58).Conclusions:More adolescents with LTID took part in daily moderate-to-vigorous physical activity in 2014 than in 2002; however, physical activity levels still remain low. Sports club membership was similar to that of the general population.

scholarly journals Niveles objetivos de actividad física durante las clases de Educación Física en estudiantes chilenos usando acelerometría (Objectively measured physical activity levels during Physical Education lessons in Chilean students using accelerometry)

Retos ◽  
2019 ◽  
pp. 123-128
Author(s):  
Daniel Mayorga-Vega ◽  
Maribel Parra Saldías ◽  
Jesús Viciana
Keyword(s):  
Physical Activity ◽  
Physical Education ◽  
Physical Activity Level ◽  
Vigorous Physical Activity ◽  
Activity Level ◽  
Activity Levels ◽  
Physical Activity Recommendations ◽  
Las Mujeres ◽  
Objectively Measured ◽  
Activity Recommendations

El objetivo del presente estudio fue examinar los niveles objetivos de actividad física durante las clases de Educación Física en adolescentes chilenos, identificando posibles diferencias según el género. En el presente estudio participaron 156 estudiantes de enseñanza básica de Chile (69 niñas y 87 varones, edad media = 13.5 ± .7 años). Se eliminaron 34 participantes por no cumplir los criterios mínimos de registro, seleccionando finalmente a 122 adolescentes. Se evaluaron los niveles objetivos de actividad física de una clase de Educación Física mediante el acelerómetro GT3X. Los resultados mostraron que ningún participante alcanzó las recomendaciones de tiempo de práctica de actividad física moderada-vigorosa del 50% durante las clases de Educación Física. La mayoría de los estudiantes (50.7% de chicos y 72.5% de chicas) acumularon menos del 10% del tiempo de clase de Educación Física en actividad física moderada-vigorosa. Los chicos presentaron mayores valores de actividad física moderada-vigorosa que las mujeres (p < .05), pero no se encontraron diferencias en el tiempo sedentario ni en la actividad física ligera (p > .05). Los adolescentes chilenos no cumplen las recomendaciones de actividad física moderada-vigorosa en clases de Educación Física. Se discuten diferentes estrategias de incremento del tiempo empleado en dicha actividad física moderada-vigorosa como medidas a considerar. Abstract. The aim of the present study was to examine objective levels of physical activity during Physical Education (PE) classes in Chilean adolescents, identifying possible differences according to gender. A sample composed of 156 Chilean adolescents (69 female and 87 male, average age = 13.5 ± .7 years) participated in this study. A total of 34 adolescents did not meet the inclusion criteria and were excluded, with 122 participants finally considered for the data analyses. Objective levels of physical activity were assessed by means of GT3X accelerometers during a PE lesson. The results showed that none of the participants reached the recommended 50% of total PE time at moderate-to-vigorous physical activity level. Most of the students (50.7% males and 72.5% females) accumulated less than 10% of the PE time at moderate-to-vigorous physical activity level. Boys showed higher values of moderate-to-vigorous physical activity than girls (p < .05); however, there were no gender differences in sedentary behavior or light physical activity time (p > .05). Chilean adolescents do not meet the moderate-to-vigorous physical activity recommendations during PE lessons. Different strategies are discussed in order to increase the time spent at moderate-to-vigorous physical activity in PE.

scholarly journals Physical activity values in two-to-seven-year-old children measured by accelerometer over five consecutives 24-hour days

2018 ◽  
Author(s):  
Ana Gutiérrez-Hervás ◽  
Ernesto Cortés-Castell ◽  
Mercedes Juste-Ruíz ◽  
Antonio Palazón-Bru ◽  
Vicente Gil-Guillén ◽  
...  
Keyword(s):  
Physical Activity ◽  
Reference Values ◽  
Weight Status ◽  
Pearson Correlation ◽  
Normal Weight ◽  
Preschool Age ◽  
Activity Levels ◽  
Main Variable ◽  
And Gender ◽  
The Relationship

Introduction.  Interpretation of accelerometer-derived physical activity in preschool children is confounded by differences in cut-off points.Aim. The purpose of this study was to analyze physical activity in 2-to-7-year-old children to establish reference values for daily activity.   Methods.  Observational study in children aged 2-7 years, without chronic diseases and whose parents provided informed consent. The main variable was physical activity, measured continuously over 120 hours (three workdays and two weekend days) by accelerometer. Secondary variables were weight status (BMI Z-score) and gender. The relationship between the main variable and secondary variables was determined through the t-test, ANOVA and the Pearson correlation coefficient.  A multivariate model was used to obtain the standard deviation of all possible combinations of values, constructing percentiles of normality(x±s and x±2·s).Results. 136 children (35% of municipality children), 54.4% girls. Their weight status distribution was: 25 underweight(18.4%), 35 normal weight(25.7%), 40 overweight(29.4%) and 36 obese(26.5%). The median age was 5.7 years and the mean physical activity was 591.9 counts/minute. The boys undertook more physical activity(p=0.031) and the underweight and normal-weight children undertook more physical activity than the overweight and obese children(p=0.032). There were no significant differences according to age.  The multivariate analysis showed significant differences(p<0.001) according to gender and weight status. In boys, physical activity decreased as weight status increased. In contrast, the girls in the extreme BMI groups obtained higher levels of physical activity.Conclusion.  The reference values obtained, categorized by gender and weight status, provide clinicians with standardized daily physical activity levels of preschool-age children.

Sign in / Sign up

Export Citation Format

Share Document