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Energy Cost of Free-Play Activities in 10- to 11-Year-Old Children

Kelly A. Mackintosh, Kate Ridley, Gareth Stratton, and Nicola D. Ridgers

Objective:

This study sought to ascertain the energy expenditure (EE) associated with different sedentary and physically active free-play activities in primary school-aged children.

Methods:

Twenty-eight children (13 boys; 11.4 ± 0.3 years; 1.45 ± 0.09 m; 20.0 ± 4.7 kg·m-2) from 1 primary school in Northwest England engaged in 6 activities representative of children’s play for 10 minutes (drawing, watching a DVD, playground games and free-choice) and 5 minutes (self-paced walking and jogging), with 5 minutes rest between each activity. Gas exchange variables were measured throughout. Resting energy expenditure was measured during 15 minutes of supine rest.

Results:

Child (Schofield-predicted) MET values for watching a DVD, self-paced jogging and playing reaction ball were significantly higher for girls (P < .05).

Conclusions:

Utilizing a field-based protocol to examine children’s free-living behaviors, these data contribute to the scarcity of information concerning children’s EE during play to update the Compendium of Energy Expenditures for Youth.

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Motor Coordination, Activity, and Fitness at 6 Years of Age Relative to Activity and Fitness at 10 Years of Age

Michele Caroline de Souza, Raquel Nichele de Chaves, Vitor Pires Lopes, Robert M. Malina, Rui Garganta, André Seabra, and José Maia

Background:

Health benefits of physical activity (PA) and physical fitness (PF) are reasonably well established, but tracking studies of PA and PF in childhood have not ordinarily considered the role of motor coordination.

Objectives:

To compare the growth status, gross motor coordination (GMC), PA, and PF characteristics of children at 6 years of age relative to aerobic fitness (fit, unfit) and PA (active, sedentary) at 10 years.

Methods:

285 primary school children (142 girls, 143 boys) resident on the 4 main Azorean islands, Portugal, were measured annually (in the fall) from 6 to 10 years. ANOVA and t tests were computed with SPSS 17.

Results:

Children with either high aerobic fitness or with high level of PA at 10 years of age tended to have a more favorable profile at 6 years compared with those with low fitness or low activity, respectively. Children who were both fit and active at 10 years of age had a more favorable activity and fitness profile and had better GMC at 6 years compared with children who were unfit and sedentary.

Conclusions:

Results highlight the need to consider not only PA, but also PF and GMC in health promotion through the primary school years.

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A Long-Term Follow-Up of Participants in the Trois-Rivières Semi-Longitudinal Study of Growth and Development

François Trudeau, Louis Laurencelle, Janie Tremblay, Mirjana Rajic, and Roy J. Shephard

The purpose of this project was to undertake a long-term follow-up of participants in the Trois-Rivières Growth and Development Study. Some 20 years after their initial involvement in the program, two groups were compared: experimental subjects (n =150) who had received 5 one-hour sessions of specialized physical education per week throughout their 6 years of primary school, and the original control group (n = 103). All subjects completed a questionnaire regarding current patterns of physical activity (PA), attitudes and beliefs about PA, and perceived barriers to PA. Principal results indicate: (a) More experimental than control women exercise 3 times or more per week, (b) experimental subjects more commonly perceived their health to be very good to excellent, (c) control subjects in general felt less psychological dependency on exercise, and (d) women in the experimental group had a lower relative risk of back problems.

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The Legacy of Physical Education: Influences on Adult Lifestyle

Roy J. Shephard and François Trudeau

It is now well-established that well-designed programs can induce short-term gains in aerobic fitness, muscular strength, and physical performance, although during the primary school years, gains may be somewhat less than in adults. Long-term effects have as yet had little investigation. Most studies have looked simply at the tracking of activity patterns and associated lifestyle variables, usually from mid or late adolescence into early adult life. Although statistically significant, such tracking has been relatively weak. Further, in the absence of an experimental intervention, such studies provide little information on the long-term health value of physical education. The potential for obtaining definitive information is suggested by a long-term (20+ year) follow-up of participants in the Trois Rivières study. This program was well-perceived by participants, and the data obtained on adults suggest it may have had some favorable long-term impact on activity patterns, physiological parameters, and smoking behavior.

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Activity Levels, Dietary Energy Intake, and Body Composition in Children Who Walk to School

Paul Ford, Richard Bailey, Damian Coleman, Kate Woolf-May, and Ian Swaine

Although differences in daily activity levels have been assessed in cross-sectional walk-to-school studies, no one has assessed differences in body composition and dietary energy intake at the same time. In this study of 239 primary school children, there were no significant differences in daily activity levels, body composition, or estimated dietary energy intake between those who walk to school (WALK) and those who travel by car (CAR; p < .05). WALK children were more active between 8 a.m. and 9 a.m. and 3 p.m. and 4 p.m. than CAR children (p < .05). In addition, there were no significant differences in the main analysis when participants were subgrouped by gender and age.

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Validation of a Video-Based Game-Understanding Test Procedure in Badminton

Minna T. Blomqvist, Pekka Luhtanen, Lauri Laakso, and Esko Keskinen

The purpose of this study is to report on the development and validation of a game-understanding test procedure in badminton. A basic video-based test was constructed, and primary school children (ages 9–10 and 11–12 years, N = 120) served as participants. An advanced test was designed to detect differences between national level junior badminton players (11–14 years, n = 19) and primary and secondary school children (11–14 years, n = 45). The video-based tests consisted of 15 to 19 different sequences that were simulations of actual offensive and defensive game situations. In every sequence, players were to solve tactical problems by selecting appropriate solutions and arguments for their decisions. Validity and reliability of the tests were examined through these groups, and the findings suggest that the test procedure developed provides a valid and reliable method for assessing game understanding in badminton.

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The Association Between Extra-Curricular Sport Participation and Social Anxiety Symptoms in Children

Annemarie Schumacher Dimech and Roland Seiler

Social anxiety is a common psychological complaint that can have a significant and long-term negative impact on a child’s social and cognitive development. In the current study, the relationship between sport participation and social anxiety symptoms was investigated. Swiss primary school children (N =201), parents, and teachers provided information about the children’s social anxiety symptoms, classroom behavior, and sport involvement. Gender differences were observed on social anxiety scores, where girls tended to report higher social anxiety symptoms, as well as on sport activity, where boys engaged in more sport involvement. MANCOVAs with gender as covariant showed no differences in social anxiety symptoms between children involved in an extracurricular sport and those not engaged in sport participation. Nevertheless, children engaged in team sports displayed fewer physical social anxiety symptoms than children involved in individual sports.

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Physical Fitness of Rural Children Compared With Urban Children in North Cyprus: A Normative Study

Cevdet Tinazci and Osman Emiroglu

Background:

The aim of this study was to investigate the effects of environmental factors on physical fitness of rural and urban children.

Methods:

To reveal the differences between physical fitness of children living in urban and rural districts of the Turkish Cypriot population, 3939 nine- to eleven-year-old male primary school children from 90 schools of North Cyprus were tested. Testing procedures were similar to the Eurofit tests.

Results:

The results showed that body mass index and skinfold thicknesses were higher in the urban children (P < .05). Differences in cardiopulmonary and motor fitness were also found between groups. In addition, flexibility and muscle endurance were significantly higher in the rural children.

Conclusion:

The significantly lower flexibility, muscle endurance, and strength of urban children might indicate a lower habitual physical activity level.

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Stability of Habitual Physical Activity and Sedentary Behavior Monitoring by Accelerometry in 6- to 8-Year-Olds

Laura Basterfield, Ashley J. Adamson, Mark S. Pearce, and John J. Reilly

Background:

Accelerometry is rapidly becoming the instrument of choice for measuring physical activity in children. However, as limited data exist on the minimum number of days accelerometry required to provide a reliable estimate of habitual physical activity, we aimed to quantify the number of days of recording required to estimate both habitual physical activity and habitual sedentary behavior in primary school children.

Methods:

We measured physical activity and sedentary behavior over 7 days in 291 6- to 8-year-olds using Actigraph accelerometers. Between-day intraclass reliability coefficients were calculated and averaged across all combinations of days.

Results:

Although reliability increased with time, 3 days of recording provided reliabilities for volume of activity, moderate-vigorous intensity activity, and sedentary behavior of 68%, 71%, and 73%, respectively.

Conclusions:

For our sample and setting, 3 days accelerometry provided reliable estimates of the main constructs of physical activity and sedentary behavior.

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Driving Down Daily Step Counts: The Impact of Being Driven to School on Physical Activity and Sedentary Behavior

Georgina Trapp, Billie Giles-Corti, Hayley Christian, Anna Timperio, Gavin McCormack, Max Bulsara, and Karen Villanueva

This study investigated whether being driven to school was associated with lower weekday and weekend step counts, less active out-of-school leisure pursuits, and more sedentary behavior. Boys aged 10–13 years (n = 384) and girls aged 9–13 years (n = 500) attending 25 Australian primary schools wore a pedometer and completed a travel diary for one week. Parents and children completed surveys capturing leisure activity, screen time, and sociodemographics. Commute distance was objectively measured. Car travel was the most frequent mode of school transportation (boys: 51%, girls: 58%). After adjustment (sociodemographics, commute distance, and school clustering) children who were driven recorded fewer weekday steps than those who walked (girls: −1,393 steps p < .001, boys: −1,569 steps, p = .009) and participated in fewer active leisure activities (girls only: p = .043). There were no differences in weekend steps or screen time. Being driven to and from school is associated with less weekday pedometer-determined physical activity in 9- to 13-year-old elementary-school children. Encouraging children, especially girls, to walk to and from school (even for part of the way for those living further distances) could protect the health and well-being of those children who are insufficiently active.