Activity Behavior In Children Research Articles

Promoting positive physical activity behaviours in children undergoing acute cancer treatment: feasibility of the CanMOVE intervention

BackgroundSupporting children and adolescents with cancer to be physically active can improve medium- and long-term health outcomes. ObjectiveTo assess the feasibility of CanMOVE, a 10-week complex, theoretically-informed, behaviour change intervention to promote physical activity for children and adolescents undergoing acute cancer treatment. MethodsA feasibility study using a single-group, repeated measures, mixed methods design. Participants completed CanMOVE, which included provision of a Fitbit (child/adolescent and carer) and structured support from a physical therapist. Feasibility domains of demand, acceptability, implementation, practicality, limited efficacy, and integration were evaluated. Data sources included service level data, objective assessment of physical activity, physical function, and health-related quality of life; and qualitative data collected via semi-structured interviews with participants and focus groups with staff. ResultsTwenty children/adolescents (median age 13yrs, interquartile-range 9–14) with a mix of cancer diagnoses, 20 parents, and 16 clinicians participated. There was high demand with 95% enrolment rate. CanMOVE was acceptable for participants. All feasibility thresholds set for implementation were met. Under practicality, there were no serious adverse events related to the intervention. Limited efficacy data indicated CanMOVE showed positive estimates of effect in influencing child/adolescent physical activity behaviour, physical function, and health-related quality of life. Positive impacts were also seen in parent and staff attitudes towards physical activity promotion. To improve integration into the clinical setting, it was suggested the duration and scope of CanMOVE could be expanded. ConclusionCanMOVE was feasible to implement in a paediatric cancer setting. CanMOVE is appropriate to be tested in a large-scale trial.

Strategies to Improve Physical Activity and Nutrition Behaviours in Children and Adolescents: A Review.

Despite widespread acknowledgement of the multifarious health benefits of physical activity (PA), including prevention and control of obesity, an overwhelming majority of children and adolescents are not sufficiently active to realise such benefits. Concurrently, young people are significantly impacted by the rapid global rise of sedentarism, and suboptimal dietary patterns during key phases of development. Regrettably, the cumulative effects of unhealthy behaviours during the growing years predisposes young people to the early stages of several chronic conditions, including obesity. Clear and consistent approaches are urgently needed to improve eating and activity behaviours of children and adolescents. Based on existing evidence of "best bets" to prevent and control obesity and its comorbidities, we present a set of non-negotiable strategies as a 'road map' to achieving prevention and improving the health of children and adolescents.

Physical Activity Interventions During Childhood and Adolescence: A Narrative Umbrella Review Addressing Characteristics, Conclusions, and Gaps in Knowledge

Given the multifaceted nature of physical activity behavior in children and adolescents, researchers have conducted myriad intervention studies designed to increase physical activity across many populations, study designs, contexts, and settings. This narrative review overviews the characteristics, conclusions, and research gaps/future directions indicated in prior reviews of interventions to promote physical activity in youth and identifies potential knowledge gaps. Seven databases were searched for articles published between January 2012 and September 2022. A predetermined list of characteristics of included reviews was extracted. Reviews (n = 68) concluded that interventions were generally effective. Little attention was paid to implementation, theoretical framework was only addressed in about half of reviews, and only a quarter specifically examined individuals from underrepresented groups. Family, community, and policy work are needed, and overarching reviews such as this study should occasionally occur given the high number of reviews focusing on specific populations or settings.

Factors That Influence Physical Activity Behavior in Children and Adolescents During and After Cancer Treatment: A Qualitative Systematic Review of the Literature.

The aim of this systematic review is to reveal the social, personal, and contextual factors that influence physical activity (PA) in children and adolescents during and after cancer treatment. SPORTDiscus, Cochrane, Web of Science, PubMed, and FIS Education electronic database were systematically searched. The 13 included studies show that social support (parents, siblings, and friends) in particular is rated as important by cancer survivors; for example, doing PA together. Depending on the treatment status and state of health, particularities arise. During the acute treatment phase, parents issued more prohibitions regarding PA than after treatment. The state of health and concern about infections are described as inhibiting factors. Not all hospitals generally offer special exercise programs for cancer patients, and in some cases, only sporadic exercise sessions were conducted by specialized staff. In addition, the hospital atmosphere, such as cramped rooms, tends to be associated with demotivating effects. Both inhibiting and promoting factors in the area of social, personal, and contextual factors could be identified. The most fundamental factor for PA is the physical condition. Social factors, such as parents or friends, often have a motivating effect and can promote PA. Inhibiting factors are mainly context-related, such as an environment unsuitable for PA. Although the review highlights interesting aspects, further treatment-related and longitudinal studies could provide deeper insights.

Changes in physical activity behavior in children and adolescents: a systematic review and meta-analysis based on a trans-theoretical model.

This article presents a systematic review and meta-analysis of cross-sectional studies of physical activity (PA) behavioral changes in children and adolescents based on the trans-theoretical model (TTM). The main purpose is to test the rationality of TTM and the secondary purpose is to analyze whether PA can effectively identify the stages of change. The databases CNKI, Wan-Fang, VIP, WOS, PubMed, and EBSCO were searched by computer. Two researchers independently reviewed the literature, extracted data, and evaluated the quality of the literature. Stata 23.0 software was used for statistical analysis. A total of 17 articles of medium and high quality were included in the meta-analysis. First, the behavior changes of PA of children and adolescents are related to the process of change (POC), self-efficacy (SEI), and decisional balance (DBL). The POC, SEI, and DBL have obvious stage characteristics. Second, with increasing intensity of PA, the degree of discrimination of stage of change (SOC) also improved, but PA could not still fully distinguish each stage. It is suggested that follow-up studies should compare the stages of change of different criteria by comprehensive behavioral data, exercise willingness, and exercise habits. Furthermore, it is recommended that more studies use longitudinal surveys or experimental interventions to test the rationality of TTM. It is suggested that the follow-up study design more standardized measurement tools to explore the change in PA behavior of children and adolescents.

A Summary of One Research Team’s Contributions to Understanding Physical Activity Behavior in Children and Youth

A Summary of One Research Team’s Contributions to Understanding Physical Activity Behavior in Children and Youth

Effects of the PRIMROSE prevention trial of childhood obesity on parental self-efficacy

BackgroundParental self-efficacy (PSE) has been suggested as a key factor for enabling parents to support children in the development of healthy dietary and physical activity behaviors and to prevent childhood obesity. However, studies of intervention effects on PSE are lacking. The present study involved a secondary analysis of data on PSE collected in a previous primary prevention trial of childhood obesity called the PRIMROSE trial. The trial involved a family-based intervention using motivational interviewing and principles of cognitive-behavioral therapy within a social-cognitive theory framework.MethodsIn the PRIMROSE trial, parents and their children were randomly allocated to the intervention or usual care. In the present study, 928 mothers who responded to the Parental Self-Efficacy for Promoting Healthy Physical Activity and Dietary Behaviors in Children Scale (PSEPAD) at follow-up assessment were included. Data were analyzed using linear regression based on generalized estimating equations, with adjustment made for PSE at baseline.ResultsAt follow-up assessment, there was a statistically significant difference of 1.4 units, 95% CI [0.4, 2.4], p = 0.009, between the intervention and control conditions on the subscale of the PSEPAD concerning PSE for promoting healthy dietary behaviors in children. However, this difference was deemed as without clinical importance. On the total scale or other subscales of the PSEPAD there were no statistically significant differences in PSE between conditions.ConclusionsThere was a statistically significant, but not clinically meaningful, intervention effect on PSE. However, because previous research repeatedly has shown positive associations of PSE with dietary and physical activity behaviors in children and that self-efficacy mediates behaviors, the construct may be important for influencing dietary and physical behaviors in children. Therefore, more research is warranted evaluating the effects of interventions on PSE in the context of childhood obesity prevention.Trial registrationRetrospectively registered 9 October 2013 at ISRCTN (ISRCTN16991919).

Adapting a Parental Support App to Promote Healthy Diet and Physical Activity Behaviors (MINISTOP) for a Multi-Ethnic Setting: A Qualitative Study on the Needs and Preferences of Parents and Nurses within Swedish Child Health Care.

Early efforts for prevention of childhood overweight and obesity are needed. In order to adapt an app promoting healthy diet and physical activity behaviors in children (MINISTOP 1.0) for multi-ethnic communities, we explored: (1) needs and concerns among Somali-, Arabic-, and Swedish-speaking parents in terms of supporting healthy diet and activity behaviors in their children; (2) nurses’ perceptions of parental needs and concerns in relation to diet and physical activity behaviors; and (3) how the features and content of the MINISTOP 1.0 app could be refined to better support health behaviors in children, among both parents and nurses. Focus groups with Somali-, Arabic-, and Swedish-speaking parents (n = 15), and individual interviews with nurses (n = 15) were conducted. Parents expressed several challenges in supporting children’s health behaviors, the need for a tailored app, and alternative ways of accessing the content (audio/video). Nurses emphasized the need of supporting parents early, and the value of a shared platform in different languages, to facilitate communication. This study contributes valuable insights about parental needs and relevant adaptations to a parental support app, such as addition of audio/video files for increased accessibility. This adapted app version—MINISTOP 2.0, can be useful for childhood obesity prevention in multi-ethnic communities.

931-P: Supporting Physical Activity in Children with Type 1 Diabetes: A Survey of Health Care Professionals

Background: The risk of some of the co-morbidities associated with type 1 diabetes (T1D) can be mitigated through physical activity. Despite benefits, research shows that children and adolescents with T1D are not meeting recommended levels of physical activity. Health Care Professionals (HCPs) have an important role in supporting and encouraging children and adolescents to be physically active. Therefore it is important to understand the perspectives of HCPs in relation to understanding physical activity behaviours in children and adolescents, prior to designing interventions to support physical activity. Methods: An online mixed methods survey of HCPs in England and Wales. Respondents were asked questions about how they support physical activity in the clinic and their perceptions of barriers/enablers of physical activity. Quantitative data were analysed descriptively, qualitative data were analysed using a combined deductive framework and inductive thematic analysis using the Capability, Opportunity, Motivation model of behaviour (COM-B). Results: Responses were received from 114 individual HCPs, representing 45% of paediatric diabetes units in England and Wales. Results show that HCPs felt that the promotion of physical activity is important in their clinic (90%) and advise children and adolescents to increase levels of physical activity (88%). Many respondents (43%) felt there was lack of education opportunities for HCPs on this topic. Qualitative responses highlighted three key areas of behaviour that might be a barrier to physical activity in their patients: (1) psychological capacity (i.e., fear of hypoglycaemia and lack of understanding of how to manage insulin and glucose levels), (2) physical opportunity (i.e., time, cost, and access to resources), and (3) social opportunity (i.e., family, school, and peer support). Conclusion: This understanding will help develop future interventions to support physical activity in children and adolescents with T1D. Disclosure E. Cockcroft: None. P. Narendran: Speaker’s Bureau; Self; Novo Nordisk Inc., Sanofi. E. Wooding: None. R. C. Andrews: None. Funding National Institute for Health Research Applied Research Collaboration South West Peninsula (to E.C.)

“Capturing the magic”: identifying the active ingredients of a physical activity participation intervention for children and youth with disabilities

Purpose This study aimed to define the active ingredients of a participation-focused physical activity intervention for children and youth with disabilities. Materials and methods An ethnographic approach was employed, triangulating participant observation, interviews and focus groups. Participant recruitment occurred through purposive sampling of staff employed at Beitostolen Healthsports Centre (BHC), and paediatric service providers visiting the centre. Interviews were transcribed verbatim and coded together with observation data. Secondary coding linked data to corresponding categories of the International Classification of Functioning, Disability and Health: Child and Youth version. Results Thirteen staff from BHC and 7 paediatric service providers participated in the study. Fourteen active ingredients were identified and were characterised at the level of the intervention (k = 8), the organisation (k = 4), and the individual (k = 2). Within the ingredients, 53 unique ICF-CY categories were identified. Twenty-six categories belonged to the ICF-CY component of “environment,” and 26 categories to “activities and participation.” No categories related to “body functions” or “body structures.” Conclusions The role of the environment, and specifically support and relationships, may be an essential consideration for enabling physical activity participation. Outcomes may guide program design and implementation to promote and sustain physical activity behaviours for children and youth with disabilities. Implications for rehabilitation The active ingredients identified in this study may guide the design and implementation of programs to promote and sustain physical activity behaviours of children and youth with disabilities. Leadership qualities and strength-based attitudes may be key characteristics of organisational practice that optimise outcomes for children and families. A “relationship-centred” approach, i.e., a network of children, families, health professionals, peers, mentors, and services in the community, may support children and young people with disabilities to achieve their physical activity participation goals.

The Effect of Season and Neighbourhood-Built Environment on Home Area Sedentary Behaviour in 9-14 Year Old Children.

There is little understanding of how the built environment shapes activity behaviours in children over different seasons. This study sought to establish how seasonal weather patterns, in a given year in a mid-western Canadian city, affect sedentary time (SED) in youth and how the relationship between season and SED are moderated by the built environment in their home neighbourhood. Families with children aged 9–14 years were recruited from the prairie city of Saskatoon, Canada. Location-specific, device-based SED was captured in children during three timeframes over a one-year period using GPS-paired accelerometers. Multilevel models are presented. Children accumulated significantly greater levels of SED in spring but significantly less SED in the fall months in comparison to the winter months. Children living in neighbourhoods with the highest density of destinations accumulated significantly less SED while in their home area in comparison to their counterparts, and this effect was more pronounced in the spring and summer months. On weekends, the rise in sedentariness within the home area was completely diminished in children living in neighbourhoods with the greatest number of destinations and highest activity friendliness. These results suggested that increasing neighbourhood amenities can lead to a reduced sedentariness of youth, though more so in the warmers months of the year.

Patterning of Physical Activity and Sedentary Behavior at and Away from School in Preadolescent Children

ABSTRACT Background: Understanding how and where children accumulate their physical activity (PA) and sedentary minutes throughout the day has important implications for behavioral interventions. Purpose: The purpose of this study was to examine the duration and intensity of habitual PA and sedentary time (SED) at and away from school among preadolescent children. Methods: Data from twenty-one children ages 7–11 (57% girls; 57% nonwhite; 24% overweight/obese) were included in this analysis. Proportion of time spent in PA, SED, and SED bouts were examined on school days (in-school and out-of-school) and non-school days via accelerometry. Results: When comparing school time with non-school time on school days, children accumulated a higher proportion of light PA while in-school [49.3% (i.e. 5 min 18 s) vs. 39.6% (i.e. 3 h 53 min), p = .01]. While at school, the proportion of time spent in SED was less [46.3% (i.e. 3 h 7 min) vs. 56.3% (i.e. 5 h 32 min), p = .01] and fewer children spent time engaged in prolonged sitting compared to out-of-school [uninterrupted SED for 30 min 52.4% (i.e. 11 children) vs. 85.7% (i.e. 18 children), p = .02] Discussion: These findings suggest children are proportionately most active and least sedentary when at school, yet children only accumulated approximately 18 min of moderate-to-vigorous PA in this environment. Translation to Health Education Practice: These preliminary findings can help to inform physical activity programming designed to promote life-long physical activity behaviors in children.

The "Goldilocks Day" for Children's Skeletal Health: Compositional Data Analysis of 24-Hour Activity Behaviors.

Optimization of children's activity behaviors for skeletal health is a key public health priority, yet it is unknown how many hours of moderate to vigorous physical activity (MVPA), light physical activity (LPA), sedentary behavior, or sleep constitute the best day-the "Goldilocks Day"-for children's bone structure and function. To describe the best day for children's skeletal health, we used data from the cross-sectional Child Health CheckPoint. Included participants (n = 804, aged 10.7 to 12.9 years, 50% male) underwent tibial peripheral quantitative CT to assesses cross-sectional area, trabecular and cortical density, periosteal and endosteal circumference, polar moment of inertia, and polar stress-strain index. Average daily time-use composition (MVPA, LPA, sedentary time, and sleep) was assessed through 8-day, 24-hour accelerometry. Skeletal outcomes were regressed against time-use compositions expressed as isometric log-ratios (with quadratic terms where indicated), adjusted for sex, age, pubertal status, and socioeconomic position. The models were used to estimate optimal time-use compositions (associated with best 5% of each skeletal outcome), which were plotted in three-dimensional quaternary figures. The center of the overlapping area was considered the Goldilocks Day for skeletal health. Children's time-use composition was associated with all skeletal measures (all p ≤ 0.001) except cross-sectional area (p = 0.72). Days with more sleep and MVPA, less sedentary time, and moderate LPA were beneficially associated with skeletal measures, except cortical density, which was adversely associated. The Goldilocks daily time-use composition for overall skeletal health was center (range): 10.9 (10.5 to 11.5) hours sleep; 8.2 (7.8 to 8.8) hours sedentary time; 3.4 (2.8 to 4.2) hours LPA, and 1.5 (1.3 to 1.5) hours MVPA. Estimated optimal sleep duration is consistent with current international guidelines (9 to 11 hours), while estimated optimal MVPA exceeds recommendations of at least 60 min/d. This first study to describe optimal durations of daily activities for children's skeletal health provides evidence to underpin guidelines. © 2020 American Society for Bone and Mineral Research (ASBMR).

Machine learning to quantify habitual physical activity in children with cerebral palsy.

To investigate whether activity-monitors and machine learning models could provide accurate information about physical activity performed by children and adolescents with cerebral palsy (CP) who use mobility aids for ambulation. Eleven participants (mean age 11y [SD 3y]; six females, five males) classified in Gross Motor Function Classification System (GMFCS) levels III and IV, completed six physical activity trials wearing a tri-axial accelerometer on the wrist, hip, and thigh. Trials included supine rest, upper-limb task, walking, wheelchair propulsion, and cycling. Three supervised learning algorithms (decision tree, support vector machine [SVM], random forest) were trained on features in the raw-acceleration signal. Model-performance was evaluated using leave-one-subject-out cross-validation accuracy. Cross-validation accuracy for the single-placement models ranged from 59% to 79%, with the best performance achieved by the random forest wrist model (79%). Combining features from two or more accelerometer placements significantly improved classification accuracy. The random forest wrist and hip model achieved an overall accuracy of 92%, while the SVM wrist, hip, and thigh model achieved an overall accuracy of 90%. Models trained on features in the raw-acceleration signal may provide accurate recognition of clinically relevant physical activity behaviours in children and adolescents with CP who use mobility aids for ambulation in a controlled setting. Machine learning may assist clinicians in evaluating the efficacy of surgical and therapy-based interventions. Machine learning may help researchers better understand the short- and long-term benefits of physical activity for children with more severe motor impairments.

Respiratory function, functional capacity, and physical activity behaviours in children and adolescents with scoliosis.

ObjectivesTo assess pulmonary function and functional capacity in children and adolescents with mild or moderate idiopathic scoliosis who were included in a rehabilitation programme, and to observe some of their physical activity behaviours.MethodsForty children (aged 9–17 years) with mild or moderate idiopathic scoliosis (patients) and 40 sex- and age-matched healthy controls were included in the study. Physical activity behaviours (hours of time spent at a desk and at a computer, hours of competitive and non-competitive practice of exercise per week) were recorded. Patients were assessed before beginning rehabilitation and 12 weeks after an exercised-based programme by spirometry and functional capacity testing (6-minute walk test).ResultsAll respiratory and functional capacity parameters were significantly increased after physical therapy compared with before beginning physical therapy in patients. However, there were still differences between patients and controls in all assessed parameters after therapy. Children and adolescents who were diagnosed with scoliosis spent a longer time at a computer, and had reduced regular and competitive physical exercise compared with controls.ConclusionsIn children and adolescents with mild/moderate idiopathic scoliosis, pulmonary parameters and functional capacity are improved after 12 weeks of supervised physical therapy.

Physical activity behaviour in children and adolescents before, during and after cancer treatment

Childhood cancer survivors show reduced physical activity (PA) levels which may considerably impact child development, quality of life, social participation and sequelae such as functional and cardiovascular health. This study aims to evaluate different aspects of PA behaviour in patients with childhood cancer (PaC) before (bT), during (dT) and after (aT) cancer treatment. In this cross-sectional, multicentre study, 114 PaC and 37 healthy controls between 4 and 20 years of age were enrolled. PA behaviour was assessed using an adapted questionnaire which included items asking about PA level, PA intensity and domains of PA. Patients reported lower PA levels and less minutes of PA at moderate-intensity dT than aT and bT (P ≤ 0.05). Healthy controls reported higher PA levels than patients aT (P ≤ 0.05). At school, 41.7% of PaC did not participate in physical education aT or bT. Lastly, 45.6% of PaC who were engaged in sport club activities bT did no more participate in sport club activities aT. Patients reported different PA behaviours dT and aT than bT. Therefore, monitoring of PA should be considered to increase PA levels in PaC. Future studies also need to examine how PA behaviour can be influenced in a positive way in PaC.

CDC childhood physical activity strategies fail to show sustained fitness impact in middle school children.

An increasing number of children are now obese and fail to meet minimum recommendations for physical activity (PA). Schools play a critical role in impacting children's activity behaviors, including PA. Our objective was to assess whether CDC-based school-centered strategies to promote PA increase long-term cardiovascular fitness (CVF) levels in students in schools. A prospective observational trial was conducted in 26 middle schools to implement CDC school-based strategies to increase PA for 3 years. Students had CVF assessed by Fitnessgram (PACER), a 20-meter shuttle run, at the start and end of each school year. A post-study questionnaire was administered to assess each school's strategy adherence. At baseline, 2402 students with a mean age 12.2 ± 1.1 years showed a mean CVF measured by PACER of 33.2 ± 19.0 laps (estimated VO2max 44.3 ± 5.3 ml/kg/min). During the first year, there was a significant increase in the mean PACER score (Δ = 3, 95% CI: 2–4.1 laps, p < 0.001) and PACER z-score (Δ = 0.09, 95% CI: 0.04–0.14, p = 0.001). Subsequently, however, a significant negative trend in PACER z-scores occurred (β = −0.02, p < 0.0001) so that over the 3-year study period, the intervention did not increase overall CVF. This effort to implement CDC school-based PA strategies in middle schools did not result in sustained increase in CVF over 3 years. It remains to be clarified whether this limited efficacy indicates that CDC physical activity strategies are not sufficiently robust to meaningfully impact health outcomes and/or additional support is needed in schools to improve fidelity of implementation.

The Impact Of Stand-biased Desks On After-school Physical Activity Behaviors In Children

PURPOSE: To assess changes in after-school time spent performing sedentary behavior (SB), light-intensity physical activity (LPA), and moderate- to vigorous-intensity physical activity (MVPA) among elementary school children in response to the introduction of stand-biased desks in the classroom. METHODS: Thirty-one 6th grade participants were assigned by their teacher to either a traditional (TD) (n=16) or stand-biased (SBD) (n=15) desk. After-school PA and SB were measured using accelerometry on four consecutive weekdays at baseline (prior to introduction of the stand-biased desks), and again following 9-weeks of exposure to either a TD or SBD in the classroom. After-school weather conditions and sport participation were recorded during both measurement periods using National Oceanic and Atmospheric Administration (NOAA) data and the Youth Activity Profile Questionnaire (YAP), respectively. Wilcoxon Rank Sum Tests were used to detect significant differences (p<0.10) in changes in after-school SB and PA between groups. RESULTS: No significant between group differences were found during the after-school period in pre-post changes in time spent performing SB (p=0.770), LPA (p=0.740), vigorous-intensity PA (VPA) (p=0.599), or MVPA (p=0.470). Significant between group differences in the median change in proportion of time spent performing moderate-intensity PA (MPA) (SBD: -1.4%; TD: -0.2%, p=0.093) were detected, with the SBD group experiencing a decrease of 4.3 minutes/after-school period relative to a 0.1 minute increase among TD participants. Coinciding with a change in PA, it was found that the average after-school temperature decreased from 60.0 oF at pre to 11.4 oF at post, while daylight also decreased by 81 minutes during the after-school period. Further, after-school sport participation between groups also changed from pre-post, with TD experiencing an increase of two after-school sport participants, while SBD experienced a decrease in after-school sport participation of two participants. CONCLUSION: Stand-biased desks did not have a negative impact on children’s after-school PA and SB. Instead, seasonal variation and the structure of children’s after- school schedule may have a greater influence on after-school activity than a mild classroom-based stand-biased desk intervention.

Exploring Mothers' Influence on Preschoolers' Physical Activity and Sedentary Time: A Cross Sectional Study.

Objectives Physical activity patterns can track from childhood into adulthood; therefore, establishing active behaviors early is imperative. Given the multidimensional nature of a mother's influence on their children, there is a need to utilize more comprehensive measures to assess the relationship between mother and child activity behaviors. Specifically, mothers have been identified as influencing preschoolers' activity behaviors and are often in control of organizing a family's opportunities to be active. The purpose of this study was to explore maternal influence on preschoolers' physical activity and sedentary time. Methods Preschoolers (n = 24) and their mothers (n = 24) wore Actical™ accelerometers for 7 consecutive days (e.g., 5 weekday, 2 weekend days), and mothers completed the adapted Environmental Determinants of Physical Activity in Preschool Children-Parent Survey. Direct entry regression analyses were conducted to explore maternal influence (e.g., role modeling through mothers' activity levels, maternal support, and enjoyment of being active) on preschoolers' activity levels. Results Maternal support was found to be a significant predictor of preschoolers' light and moderate-vigorous physical activity, and sedentary time (p < .05); accounting for 37.3-46.7% of the variation. Conclusions for Practice Mothers supportive behaviors influenced preschoolers' physical activity and sedentary time.Future research is needed to investigate facilitators/barriers that mothers with preschoolers encounter with regard to providing support to be active or modeling active behaviors themselves.

The Effect of the Presence of an Internet-Connected Mobile Tablet Computer on Physical Activity Behavior in Children.

Mobile Internet-connected electronic devices provide access to activities that have traditionally been associated with sedentary behavior. Because they are portable, these devices can be utilized in any environment. Therefore, providing children with access to these devices in environments that typically promote physical activity may result in a reduction in physical activity behavior. To assess children's physical and sedentary (ie, sitting) activity with and without the presence of a mobile Internet-connected tablet computer. A total of 20 children [6.7 (1.9) y old] participated in 2 simulated recess conditions in a gymnasium on separate days. During each condition, children had free-choice access physical activity options and a table of sedentary activities for 40minutes. During 1 session, the iPad was present, and in the other session, it was not. Physical activity was monitored via an accelerometer, and sedentary time was monitored via a stopwatch. Children significantly (P ≤ .03) reduced average physical activity intensity and increased their sedentary behavior with the iPad present [4.4 (4.0) metabolic equivalents/min and 20.9 (12.4) min sitting] versus the condition without the iPad present [5.3 (4.0) metabolic equivalents/min and 13.6 (13.2) min sitting]. Introducing an mobile Internet-connected tablet computer into a gymnasium reduced children's physical activity intensity by 17% and increased sedentary behavior by 54%.