scholarly journals The Analysis of Objectively Measured Weekly Physical Activity of Adolescent Boys

2018 ◽  
Vol 1 (84) ◽  
Author(s):  
Edita Maciulevičienė ◽  
Rita Sadzevičienė ◽  
Rita Gruodytė
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Energy Consumption ◽  
Pilot Study ◽  
Body Mass ◽  
Daily Basis ◽  
Activity Monitors ◽  
The World ◽  
Weekly Physical Activity ◽  
Objectively Measured

Research background and hypothesis. The objective methods for measuring PA are used more and more widely in various research studies all over the world. To our best knowledge, this pilot study is the first attempt in Lithuania to objectively assess physical activity of adolescents with an ambition to develop a more accurate methodology in assessing physical activity. Research aim of this study was to analyze the objectively measured weekly physical activity results of adolescent boys.Research methods. The PA of schoolboys was measured using Tri-axis ActiTrainer Activity Monitors. Boys were asked to wear the monitors for the whole week. The level of the intensity of PA was determined by calculating energy consumption in METs. Based on the frequency of vigorous  and moderate PA per week, the participants of this study were devided into PA groups. Research results. All of the schoolboys experienced LPA on each of the assessed days. MPA on each day was experienced by 59.6 % of the boys. No participants achieved VPA on a daily basis. The frequency of MPA and VPA experienced most often was 5–7 and 1–3 days per week, respectively. The total PA measured during the week was largely comprised by LPA, i. e. 79.8%; MPA and VPA were 18.8 and 1.4%, respectively.Discussion and conclusion. Boys who achieve VPA, have a greater total PA during the week than those boys who do not experience VPA. If boys achieve VPA on more than 2 days during the week, even if it is just for 10 min, there is a significant increase in the total amount of weekly PA as well as a decrease in their body mass index (BMI). Boys’ who do not experience MPA at least for 6 days/week, the total amount of weekly PA decreases.Keywords: PA frequency, PA intensity, PA volume.

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 Low Physical Activity Levels Are Linked to Early Hypertension Risk in College-Going Young Adults

Healthcare ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1258
Author(s):  
Kalyana Chakravarthy Bairapareddy ◽  
Mariam Mhd Salem Kamcheh ◽  
Ranim Jihad Itani ◽  
Mirna Mohamed ◽  
Heba Ayman Eid Abdellatif Zahran ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Young Adults ◽  
Waist Circumference ◽  
Body Mass ◽  
Activity Levels ◽  
Hypertension Risk ◽  
College Going ◽  
Physical Activity Levels ◽  
Weekly Physical Activity

Background: Sedentary behaviour and physical inactivity along with body mass are identified as critical determinants of vascular health along with body mass in young adults. However, the relationship between potential physical health and anthropometric variables with high blood Eid pressure remain unexplored in young adults from the United Arab Emirates region. Methodology: We administered a cross-sectional study in young adults assessing their self-reported physical activity levels, anthropometric variables (body mass index and waist circumference) and ambulatory blood pressure. The associations among potential physical health, anthropometric variables and high blood pressure were analysed through logistic regression after necessary transformation. Results: Of 354 participants (176 males, 178 females), we found 17.79% (n = 63) had higher mean arterial pressure. Males (n = 40; 22.73%) had higher risk of hypertension than females (n = 12.92%). Weekly physical activity levels (β = −0.001; p = 0.002), age (β = −0.168; p = 0.005) and gender (β = −0.709; p = 0.028) were found to be more strongly associated with hypertension risk than the body mass index (β = 0.093; p = 0.075), waist circumference (β = 0.013; p = 0.588) and the weekly sitting time (β = 0.000; p = 0.319) of the individuals. Conclusions: Lower physical activity was associated with hypertension risk compared to other modifiable risk factors such as waist circumference, body mass index and sedentary time in college-going young adults. Public health measures should continue to emphasise optimisation of weekly physical activity levels to mitigate vascular health risks at educational institution levels.

scholarly journals Feasibility of Social-Network-Based eHealth Intervention on the Improvement of Healthy Habits among Children

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1404 ◽  
Author(s):  
José Alberto Benítez-Andrades ◽  
Natalia Arias ◽  
María Teresa García-Ordás ◽  
Marta Martínez-Martínez ◽  
Isaías García-Rodríguez
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Body Mass ◽  
Eating Habits ◽  
Intervention Group ◽  
Group Versus ◽  
Daily Basis ◽  
Control Group ◽  
Healthy Habits ◽  
Ehealth Intervention

This study shows the feasibility of an eHealth solution for tackling eating habits and physical activity in the adolescent population. The participants were children from 11 to 15 years old. An intervention was carried out on 139 students in the intervention group and 91 students in the control group, in two schools during 14 weeks. The intervention group had access to the web through a user account and a password. They were able to create friendship relationships, post comments, give likes and interact with other users, as well as receive notifications and information about nutrition and physical activity on a daily basis and get (virtual) rewards for improving their habits. The control group did not have access to any of these features. The homogeneity of the samples in terms of gender, age, body mass index and initial health-related habits was demonstrated. Pre- and post-measurements were collected through self-reports on the application website. After applying multivariate analysis of variance, a significant alteration in the age-adjusted body mass index percentile was observed in the intervention group versus the control group, as well as in the PAQ-A score and the KIDMED score. It can be concluded that eHealth interventions can help to obtain healthy habits. More research is needed to examine the effectiveness in achieving adherence to these new habits.

Effects of Body Mass Index on Step Count Accuracy of Physical Activity Monitors

2012 ◽  
Vol 9 (4) ◽  
pp. 594-600 ◽  
Author(s):  
Yuri Feito ◽  
David R. Bassett ◽  
Dixie L. Thompson ◽  
Brian M. Tyo
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Body Mass ◽  
Step Count ◽  
Activity Monitors ◽  
Wide Range ◽  
Step Counting ◽  
Physical Activity Monitors ◽  
High Level ◽  
Walking Speeds

Background:Activity monitors are widely used in research, and are currently being used to study physical activity (PA) trends in the US and Canada. The purpose of this study was to determine if body mass index (BMI) affects the step count accuracy of commonly used accelerometer-based activity monitors during treadmill walking.Methods:Participants were classified into BMI categories and instructed to walk on a treadmill at 3 different speeds (40, 67, and 94 m·min−1) while wearing 4 accelerometer-based activity monitors (ActiGraph GT1M, ActiCal, NL-2000, and StepWatch).Results:There was no significant main effect of BMI on pedometer accuracy. At the slowest speed, all waist-mounted devices significantly underestimated actual steps (P < .001), with the NL-2000 recording the greatest percentage (72%). At the intermediate speed, the ActiGraph was the least accurate, recording only 80% of actual steps. At the fastest speed, all of the activity monitors demonstrated a high level of accuracy.Conclusion:Our data suggest that BMI does not greatly affect the step-counting accuracy of accelerometer-based activity monitors. However, the accuracy of the ActiGraph, ActiCal, and NL-2000 decreases at slower speeds. The ankle-mounted StepWatch was the most accurate device across a wide range of walking speeds.

scholarly journals Neighbourhood differences in objectively measured physical activity, sedentary time and body mass index

2011 ◽  
Vol 01 (03) ◽  
pp. 182-189 ◽  
Author(s):  
Stephanie A. Prince ◽  
Mark S. Tremblay ◽  
Denis Prud’homme ◽  
Rachel Colley ◽  
Michael Sawada ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Body Mass ◽  
Sedentary Time ◽  
Objectively Measured ◽  
Objectively Measured Physical Activity

scholarly journals The Relationship among Body Mass Index, Physical Activity, Dynamic Balance, and Sleep Patterns

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Geubrina Kananda ◽  
Eka Roina Megawati
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Body Mass ◽  
Dynamic Balance ◽  
Overweight And Obesity ◽  
The Body ◽  
Sleep Patterns ◽  
Fall Injury ◽  
The World ◽  
The Relationship

According to the World Health Organization in 2010, overweight and obesity are the fifth risk factors of the cause of death in the world. Obesity is influenced by the level of physical activity and it could cause a disturbance in dynamic balance and induce sleep disorder known as sleep apnea. Meanwhile, the lack of physical activity also affects the dynamic balance that can increase the risk of fall injury during the dynamic physical activity. The aim of this study was to investigate the relationship among body mass index, physical activity, the dynamic balance, and sleep patterns. The subjects of this study were 72 young adults aged 20 years in average, consisted of 47 males and 25 females. The body mass index was undertaken by dividing the body weight (kg) and height in meter square (m2). The level of physical activity was performed by using the International Physical Activity Questionnaire. Meanwhile, the dynamic balance was measured by using the modified Bass test; while sleep patterns was measured by using the Pittsburgh Sleep Quality Index. This study found that there was a significant association between BMI and dynamic balance with p value = 0.006 (p 0.05); whereas physical activity was not significantly associated to the dynamic balance (p0.05). Meanwhile, body mass index and physical activity were not significantly associated to sleep patterns (p 0.05). This study concludes that body mass index has a significant association to dynamic balance. Meanwhile, dynamic balance is highly needed in carrying out dynamic physical activity to avoid fall injury.

scholarly journals A Pilot Study Examining Body Composition Classification Differences Between Body Mass Index and Bioelectrical Impedance Analysis in Children With High Levels of Physical Activity

2021 ◽  
Vol 9 ◽  
Author(s):  
David J. Farbo ◽  
Deborah J. Rhea
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Body Composition ◽  
Pilot Study ◽  
Body Mass ◽  
Body Fat ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Significant Difference

Background: Body mass index (BMI) is frequently labeled as “flawed” in assessing obesity since it cannot differentiate between muscle and fat leading to misclassifications of healthy individuals. Bioelectrical impedance analysis (BIA) may be a more accurate indicator of obesity since it can distinguish the difference between muscle and fat in children. This pilot study investigated discrepancies between BMI and BIA body composition classifications in children with high levels of physical activity.Methods: Participants were selected from three elementary schools (N = 380, K = 76, 1st = 64, 2nd = 62, 3rd = 61, 4th = 83, and 5th = 34) receiving 60 min of outdoor, unstructured play daily. BIA scales were used to collect each child's body fat percentage and BMI score, then those numbers were categorized by BIA and BMI normative values as either underweight, healthy, overweight, or obese.Results: Overall, 26% of the students were classified differently when using the normative classifications for BMI and BIA, with the largest discrepancy found in the overweight category at 38%. Similar inconsistencies were found when students were divided as younger (42%) vs older students (36%), and males (40%) vs. females (35%).Conclusions: This pilot study demonstrated that there is a significant difference in how BMI and BIA discriminate between the different body composition categories. BIA consistently shows to be a more accurate tool in assessing obesity rates in children since it directly measures body fat.

Independent Mobility and its Relationship With Moderate-to-Vigorous Physical Activity in Middle-School Portuguese Boys and Girls

2014 ◽  
Vol 11 (8) ◽  
pp. 1640-1643 ◽  
Author(s):  
Elisa A. Marques ◽  
Andreia Isabel Pizarro ◽  
Jorge Mota ◽  
Maria Paula Santos
Keyword(s):  
Physical Activity ◽  
Middle School ◽  
Body Mass Index ◽  
Logistic Regression ◽  
Body Mass ◽  
Multinomial Logistic Regression ◽  
Vigorous Physical Activity ◽  
Independent Mobility ◽  
Exact Relation ◽  
Objectively Measured

Background:The exact relation between objectively measured moderate-to-vigorous physical activity (MVPA) and independent mobility in children has yet to be fully defined. The objective of this study was to determine whether independent mobility is associated with level of MVPA.Methods:Data were collected from 9 middle schools in Porto (Portugal) area. A total of 636 children in the 6th grade (340 girls and 296 boys) with a mean age of 11.64 years old participated in the study. PA was measured in 636 participants using an accelerometer. Multinomial logistic regression was applied to assess the odds for belonging to quartiles of MVPA.Results:After controlling for age, gender, body mass index, meeting PA recommendations, and participation in structured exercise, the odds of having a higher level of MVPA when children have higher independent mobility increase through the MVPA quartiles.Conclusions:A positive associations were found between independent mobility and quartiles of physical activity.

scholarly journals Objectively Measured Physical Activity and Body Mass Index in Preschool Children

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Susana Maria Coelho Guimarães Vale ◽  
Rute Marina Roberto Santos ◽  
Luísa Maria da Cruz Soares-Miranda ◽  
Carla Marisa Maia Moreira ◽  
Jonatan R. Ruiz ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Preschool Children ◽  
Body Mass ◽  
Odds Ratio ◽  
Moderate Intensity ◽  
School Age ◽  
Z Score ◽  
Objectively Measured ◽  
Objectively Measured Physical Activity

Aim. To examine the association between objectively measured physical activity (PA) and body mass index (BMI) in preschool children.Methods. The study comprised 281 children (55.9% boys) aged from 4 to 6 years. PA was measured by accelerometer. Children were categorized as non-overweight (NOW) and overweight/obese (OW) according to the sex-adjusted BMI z-score (<1 and≥1, resp.).Results. Total and moderate intensity PA were not associated with BMI. We observed that a higher proportion of OW children were classified as low-vigorous PA compared to their NOW peers (43.9 versus 32.1%, resp.,P>.05). Logistic regression analysis showed that children with low-vigorous PA had higher odds ratio (OR) to be classified as OW compared to those with high-vigorous PA (OR=4.4; 95% CI: 1.4–13.4;P=.008) after adjusting for BMI at first and second years of life and other potential confounders.Conclusion. The data suggests that vigorous PA may play a key role in the obesity development already at pre-school age.

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