- Study protocol
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Rationale and study protocol for the supporting children’s outcomes using rewards, exercise and skills (SCORES) group randomized controlled trial: A physical activity and fundamental movement skills intervention for primary schools in low-income communities
BMC Public Health volume 12, Article number: 427 (2012)
Many Australian children are insufficiently active to accrue health benefits and physical activity (PA) levels are consistently lower among youth of low socio-economic position. PA levels decline dramatically during adolescence and evidence suggests that competency in a range of fundamental movement skills (FMS) may serve as a protective factor against this trend.
The Supporting Children’s Outcomes Using Rewards Exercise and Skills (SCORES) intervention is a multi-component PA and FMS intervention for primary schools in low-income communities, which will be evaluated using a group randomized controlled trial. The socio-ecological model provided a framework for the 12-month intervention, which includes the following components: teacher professional learning, student leadership workshops (including leadership accreditation and rewards, e.g., stickers, water bottles), PA policy review, PA equipment packs, parental engagement via newsletters, FMS homework and a parent evening, and community partnerships with local sporting organizations. Outcomes will be assessed at baseline, 6- and 12-months. The primary outcomes are PA (accelerometers), FMS (Test of Gross Motor Development II) and cardiorespiratory fitness (multi-stage fitness test). Secondary outcomes include body mass index [using weight (kg)/height (m2)], perceived competence, physical self-esteem, and resilience. Individual and environmental mediators of behavior change (e.g. social support and enjoyment) will also be assessed. The System for Observing Fitness Instruction Time will be used to assess the impact of the intervention on PA within physical education lessons. Statistical analyses will follow intention-to-treat principles and hypothesized mediators of PA behavior change will be explored.
SCORES is an innovative primary school-based PA and FMS intervention designed to support students attending schools in low-income communities to be more skilled and active. The findings from the study may be used to guide teacher pre-service education, professional learning and school policy in primary schools.
Australian New Zealand Clinical Trials Registry No: ACTRN12611001080910
Participation in physical activity (PA) is essential for optimizing children’s physical, social, cognitive and psychological development [1, 2]. Activity of vigorous intensity may have additional benefits for young people, as physical fitness is a better predictor of metabolic health than total PA [3–5]. Unfortunately lack of PA among children and adolescents is a global concern  and current estimates suggest that only 50% of Australian primary school-aged children are meeting the current PA guidelines (i.e., 60 minutes/day of moderate-to-vigorous PA) . In particular, promoting PA among youth from disadvantaged backgrounds is a public health priority because these individuals have reduced access to PA facilities and resources [8, 9] and are often less active than those of middle and high socio-economic position [10–12].
The school setting is an ideal environment for the promotion of PA among youth as schools have the necessary equipment, personnel, facilities and curriculum to promote and provide opportunities for PA [13, 14]. Numerous school-based PA interventions have been evaluated [15, 16], including those specifically targeting youth from low-income backgrounds [17, 18]. Multi-component school-based interventions that involve parents and encourage PA within and beyond the school day, are more efficacious than curriculum only interventions [15, 16]. Although the evidence for effective school-based interventions is strong, studies rarely report their effect on movement skill competency. This is a notable omission because PA levels decline dramatically during adolescence [19, 20] and evidence suggests that failure to attain competency may contribute to this decline, whereas competency may serve as a protective factor against this trend [21, 22].
Proficiency in a range of fundamental movement skills (FMS) is considered to be the foundation for an active lifestyle  and the primary school years represent the “golden years” of motor skill development [23, 24]. FMS include locomotor (e.g., running and hopping), object control (e.g., catching and throwing) and stability (e.g., balancing and twisting) skills . These skills are ideally developed in childhood and subsequently refined into context- and sport-specific skills [24–26]. A recent systematic review of the health benefits associated with FMS competency found strong evidence for a positive association between FMS competency and PA in children and an inverse relationship between skill level and weight status . Teaching movement skills improves both actual and perceived competence [28, 29], both of which are important for future PA [30, 31]. Indeed, lack of confidence in the physical domain is a major barrier to PA among many children and adolescents [32–34]. Alarmingly, many children finish primary school without achieving mastery in a range of FMS and those from disadvantaged backgrounds often demonstrate the lowest competency levels [11, 35].
The low PA and poor FMS competency observed among children living in low-income communities can be explained by socio-environmental factors (e.g., working parents, lack of PA opportunities and unsafe neighborhoods etc.) [36, 37], but may also reflect a failure of current school-based programs and strategies . Indeed, the recent Crawford report highlighted both the central role that schools play in the promotion of PA and the dire state of PE and school sport in Australian primary schools . Formative research conducted by Morgan and colleagues indicated that the crowded school curriculum along with inadequate teacher training programs contributes to teachers’ reluctance to teach PE and the poor quality of existing PE programs [39, 40]. Combined, these findings illustrate the importance of designing and evaluating school-based approaches to PA promotion among the most vulnerable individuals (i.e., those living in low-income communities). This paper provides the rationale and methods for the Supporting Children’s Outcomes Using Rewards Exercise and Skills (SCORES) intervention. SCORES is a multi-component school-based intervention that combines a range of evidence-based behavior change strategies to promote PA and FMS competency among primary school aged children from low-income communities.
The SCORES intervention will be evaluated using a group randomized controlled trial (Figure 1). The 12-month multi-component PA and FMS intervention will target children in grades 3 and 4 (ages 7 to 10 grades) in eight primary schools. Assessments were conducted at baseline [February–March (Term 1) 2012], and will be repeated mid-program [August–September (Term 3) 2012] and at 12-months post baseline [February–March (Term 1) 2013]. The design, conduct and reporting of this group RCT will adhere to the Consolidated Standards of Reporting Trials (CONSORT) guidelines for group trials . Ethics approval for this study was obtained from the Human Research Ethics Committees of the University of Newcastle, Australia and the New South Wales (NSW) Department of Education and Communities. School Principals, teachers, parents and study participants provided written informed consent.
Setting and participants
The Socio-Economic Indexes for Areas (SEIFA) index of relative socioeconomic disadvantage was used to identify eligible primary schools. The SEIFA index (scale 1 = lowest to 10 = highest) summarizes the characteristics of people and households within an area and was developed using the following data: employment, education, financial well-being, housing stress, overcrowding, home ownership, family support, family breakdown, family type, lack of wealth (no car or telephone), low income, Indigenous status and foreign birth. Sixteen government primary schools located within 30 minutes drive from the University of Newcastle, with a SEIFA index of ≤ 5 (lowest 50%) were invited to participate in the study and eight schools consented to participate (50% consent rate). All students in grades 3 and 4 (Stage 2) at the study schools were invited to participate in the program. From the 592 eligible children at the eight schools, 460 children consented to participate (78% consent rate).
Sample size calculation
Power calculations were conducted to determine the sample size required to detect changes in the three primary outcomes [i.e., PA, cardiorespiratory fitness (CRF) and FMS] at the 12-month assessments. All calculations assumed baseline-posttest correlation scores of 0.80 and were based on 80% power with alpha levels set at p < 0.05. Using the standard deviation (SD = 33) and intraclass correlation coefficient (ICC = 0.05) values from the Kinder-Sportstudie (KISS) , it was calculated that a study sample of N = 440, with 8 clusters (i.e. schools) of 55 students would provide adequate power to detect an achievable between group difference of 11 moderate-to-vigorous physical activity (MVPA) minutes/day . Based on data from the Action Schools BC! (SD = 13)  and the KISS (ICC = 0.03)  studies, a sample of 440 would also provide adequate power to detect a between group difference of 4 laps on the multi-stage fitness test (i.e., CFR outcome). In the absence of existing ICC values for FMS outcomes, an ICC estimate of 0.05 and a SD of 15 units  indicated that the study would be adequately powered to detect a between group difference of 5 units on the TGMD-II gross motor quotient.
Blinding and randomization
Baseline assessments were conducted prior to randomization by trained research assistants. The intervention will be evaluated using a group RCT-design and schools were randomly allocated to the control or intervention groups for the duration of the study. Schools were match-paired based on their size and SEP (based on post-code of school) then randomly allocated to the intervention or control group using a computer-based random number producing algorithm by a researcher not involved in the current study. This method ensured that schools had an equal chance of allocation to each group.
SCORES is a 12-month multi-component PA and FMS intervention for primary schools in low-income communities (Figure 2). The socio-ecological model  provided a framework for the intervention components. Within this framework, behavior change strategies were guided by Self-Determination Theory (SDT) [46, 47] and Competence Motivation Theory (CMT) [48, 49]. SDT proposes that social-contextual factors (e.g., motivational strategies used by teachers and parents) can influence individuals’ motivation and subsequent behavior by satisfying three basic psychological needs: 1) Autonomy, the need to experience one’s behavior as self-endorsed or volitional; 2) Competence, the need to effectively interact with one’s environment and achieve positive outcomes; and 3) Relatedness, the need to feel supported and connected with others [46, 47]. SDT has been used extensively with adolescents in PE-based research [50–53] and evidence suggests that students who feel self-determined are more engaged and more active in PE lessons [51, 52]. In the context of PA promotion, CMT provides a theoretical link between FMS competence and PA . While CMT includes competence and a construct similar to SDT’s relatedness (social support), it differs in its focus on enjoyment and includes global self-esteem as a predictor of behavior. Our integrated model proposes that children who have high levels of perceived and actual athletic competence, receive social support from significant others and feel a sense of control over their PA experiences will enjoy PA and seek opportunities to be active in the future.
The SCORES intervention will be implemented in three phases. Phase 1 will focus on teacher professional learning, student workshops, provision of equipment and the establishment of a school committee. In Phase 2, the research team will work with the school committees to advocate for relevant policy change to promote PA and FMS. In addition, the research team will employ a range of strategies to engage parents and encourage them to support their children’s PA. Phase 3 will address strategies to improve school-community links (e.g., inviting local sporting organizations to assist with school sport programs). The focus of this phase will be program consolidation and the research team will work with schools to establish sustainability. The intervention components are detailed in Table 1 and a description of how the socio-ecological framed intervention will facilitate behavior change at the individual, interpersonal, organizational and community levels is provided below:
Individual: While the intervention will involve a number of indirect strategies to support and improve children’s PA behaviors (i.e., through teachers, parents and the community), students will be directly involved in the SCORES leadership workshops which will be delivered by the research team. The workshops will focus on developing leadership and organizational skills necessary for running lunch and recess PA sessions and assisting classroom teachers to deliver high quality PE lessons. These sessions will be designed to satisfy students’ basic psychological needs (i.e., autonomy, competence and relatedness). and enable them to achieve SCORES leadership accreditation.
Interpersonal: The SCORES intervention will target teachers, parents and the students themselves as facilitators of behavior change. The teacher professional learning workshops will provide opportunities for non-specialist PE (i.e., classroom teachers) to improve their teaching skills and knowledge in regards to PA promotion and FMS development. The workshops were guided by SDT and CMT and will be used to reinforce the SAAFE (Supportive, Active, Autonomous, Fair and Enjoyable) teaching principles, which were developed for the study and are described in Table 2.
Parents will be engaged using the following strategies: a) newsletters describing intervention progress and encouraging PA and FMS practice, b) weekly FMS homework (using FMS activity cards to be completed by children at home under parental supervision), and c) a parent information evening focusing on parental strategies to promote PA and FMS development outside of school setting. Finally, students who have gained SCORES accreditation will be responsible for organizing recess and lunch-time physical activities for other students in the study schools.
Organizational: The research team will work with the schools to implement evidence-based policy and practice that is supportive of all students’ PA. The specific PA policies are provided in Table 1. A school committee will be established to guide a review of existing school policy and the implementation of new policies. The research team conducted an audit of each school’s equipment and resources. Intervention schools will be provided with PA equipment (e.g. bats, balls etc.) to support PA promotion, based on their individual requirements.
Community: The research team will conduct an audit of sport and PA organizations within each school’s local community. Community organizations will then be invited to visit schools during PE and school sport. The aim of this intervention component is to create partnerships between schools and community organizations. It will also serve to increase students’ awareness of, and participation in, extra-curricular sport and PA in their local community.
Control group: To prevent potential compensatory rivalry and resentful demoralization , the control schools will be provided with a condensed version of the program following the 12-month assessments. The condensed version of the program will include the professional learning workshops for teachers and students, strategies to engage parents and a review of school PA policy will be conducted. A PA equipment pack valued at approximately $1000 AUD (including pedometers, bats, balls, cones, goals etc.) will also be provided based on individual school requirements.
Baseline assessments were conducted by trained research assistants at the study schools. Mid-intervention (6-months) and post-intervention (12-months) assessments will also be conducted at the study schools. For consistency and accuracy, a protocol manual, which includes specific instructions for conducting all assessments, was developed and will be used by research assistants. Questionnaires were completed before the physical assessments in exam-like conditions and physical assessments were conducted in a sensitive manner (e.g., weight measured in a discreet, private setting). Demographic information including age, gender, ethnicity, language spoken at home and mother/father’s highest level of school was collected at baseline. A range of primary and secondary outcomes and hypothesized mechanisms of behavior change will be measured.
PA will be assessed using triaxial Actigraph accelerometers (GT3X and GT3X+), which will be worn by participants during waking hours for seven consecutive days, except while bathing and swimming. Trained research assistants, following standardized accelerometer protocols , will fit the monitors and explain the monitoring procedures to students. Data will be collected and stored in 10-second intervals. The mean activity counts per minute (CPM) and daily step counts will be calculated, thresholds for activity counts will be used to categorize PA into sedentary, light, moderate and vigorous intensity activity .
Cardio-respiratory fitness (CRF) will be assessed using a 20 m multistage fitness test . Participants will be required to run back and forth between two lines over a 20 m distance within a set time limit. Running speed will start at 8.5 km/hour and will increase by 0.5 km/hr each minute using the Multi-stage test cadence CD. Participants will be instructed to run in a straight line and to place one foot over the 20 m line before the next beep. The test is completed when a participant fails to reach the line for two consecutive shuttles. Scores will recorded as the level and shuttle reached, which will be converted to the number of 20 m laps completed to provide a continuous variable for analysis.
Fundamental movement skill competency
FMS competency will be assessed using the Test of Gross Motor development (TGMD) II . The TGMD II includes six locomotor (i.e., run, gallop, hop, leap, horizontal jump, slide) and six object control (i.e., striking a stationary ball, stationary dribble, kick, catch, overhand throw, and underhand roll) skills. Participants will perform each skill twice and skills will be video-taped for assessment. Inter-rater and intra-rater reliability will be established (> 80%) using pre-coded video-tapes before movement skills are assessed.
Height and weight
Weight will be measured in light clothing without shoes using a portable digital scale (Model no. UC-321PC, A&D Company Ltd, Tokyo Japan) to the nearest 0.1 kg. Height will be recorded to the nearest 0.1 cm using a portable stadiometer (Model no. PE087, Mentone Educational Centre, Australia). Body mass index (BMI) will be calculated using the standard equation (weight[kg]/height[m]2) and BMI-z scores will be calculated using the ‘LMS’ method .
Global self-concept will be assessed using Harter’s Self-Perception Profile (SPP) . The SPP utilizes a four-choice structured alternative format to reduce socially desirable responses. Participants must first decide which of the two statements best describes them and then choose whether the statement is ‘sort of true’ or ‘really true’ for them. Each item is scored from 1 (low-self-perception) to 4 (high self-perception).
Participants will complete the Child and Youth Resilience Measure (CYRM-28) . Based on a validation study involving children from 11 countries, the CYRM-28 was found to have good content-related validity and provide a culturally sensitive measure of youth resilience . The CYRM-28 has 28 items and includes three sub-scales: individual, relationships with primary care-givers, and contextual factors that facilitate a sense of belonging. Items are rated on a 5-point Likert scale with values ranging from 1 (Not at all) to 5 (A lot).
Participants will complete six items related to weekday and weekend day recreational screen time from the Health Behavior in School-aged Children (HBSC) study . The HBSC screen time questions compare favorably with other measures in sedentary behavior  and has acceptable reliability in children, with intraclass correlation coefficients ranging from 0.86 (95% CIs, 0.76–0.92) for watching television on school days to 0.38 (95% CIs, 0.10–0.60) for using the internet for non-school purposes and chatting on line .
Hypothesized mediators of behavior change
A poor understanding of the mechanisms of behavior change in PA interventions has been noted in the literature [65, 66]. Students, parents and teachers will complete a range of scales assessing individual and socio-environmental level mediators of PA behavior change.
Perceived sport competence
Perceived sport competence will be assessed using a subscale from Harter’s SPP .
Enjoyment of PA will be assessed using the Physical Activity Enjoyment Scale (PACES) . The 16-item scale is scored on a 5-point Likert scales, with responses ranging from 1 (Disagree a lot) to 5 (Agree a lot).
Social support from family/household members , friends  and teachers  will be self-reported by participants using existing scales (each containing 5 items). All scales utilize 5-point Likert scales with responses ranging from 1 (never) to 5 (always). Parents will also report the level of social support they provide for their children using the Children’s Leisure Activities Study Survey (CLASS) .
Parents will complete selected scales from the CLASS assessing children’s access to PA facilities and equipment in their home and local community . Parents will also report barriers and facilitators to their children’s PA in the local community using the CLASS. Teachers at the study schools will report on their schools’ physical environment and facilities and students’ access to these within and beyond the school day using scales selected from the New South Wales Schools Physical Activity and Nutrition Survey (SPANS) .
A range of process data will be collected to complement the outcome data. Process measures will include i) teacher and student attendance at workshops (i.e., percentage attendance), ii) student leadership accreditation (i.e., number of students who complete the workshop and satisfy the accreditation guidelines), iii) teacher satisfaction with professional learning workshops (using workshop evaluation questionnaires at the end of Phase 1), iv) parental involvement will be determined using a process evaluation questionnaire (e.g. reading newsletters and completion of home-based FMS tasks) and attendance at the parent evening, v) teacher, student and parent satisfaction with all intervention components (using process evaluation questionnaires at the completion of the study), vi) compliance with PA policies will be determined through interviews with school Principals, vii) PE intervention fidelity will be determined (using SOFIT observations). PE lessons will be observed at baseline, 6- and 12-months using the System for Observing Fitness Instruction Time (SOFIT) tool . Percentage of lesson time spent in MVPA and time dedicated to skill development will be assessed. All teachers of Stage 2 students (both intervention and control groups) will be observed at each time point.
The study will be adequately powered to detect clinically important changes in the three primary outcomes at the 12-month assessments. Statistical analyses of the primary and secondary outcomes will be conducted using linear mixed models with PROC MIXED in SAS V 9.1 (SAS Institute Inc, Cary, NC) and alpha levels will be set at p < 0.05. The mixed models will be specified to adjust for the clustered nature of the data and will follow the intention to treat principle. Potential moderators of the intervention effects (e.g., ethnicity, socio-economic status and type of school) will be explored using linear mixed models. Differences between participants in the intervention and groups at baseline and differences between completers and those who drop out of the study will be examined using Chi square and independent samples t-tests in PASW Statistics 17 (SPSS Inc. Chicago, IL) software. Hypothesized mediators of PA behavior change will be examined using multilevel linear analysis and a product-of-coefficients test that is appropriate for cluster randomized controlled trials .
In this paper we described the rationale and study protocol for the SCORES intervention. To the authors’ knowledge, SCORES is the first PA and FMS intervention targeting Australian primary school children in low-income communities. Targeting children of low SEP is important because they have reduced access to PA opportunities and are typically less active and skilled than youth of middle and high SEP [11, 12]. By Year 4, students should achieve mastery in a range of FMS, however, recent data suggests that the prevalence of advanced skills is low among Australian children and proficiency levels have declined since 2004 .
Although there is strong evidence that school-based PA interventions are effective in increasing the duration of PA and increasing CRF in children and adolescents, their impact on leisure time PA and FMS is less convincing [14–16]. Such programs are typically evaluated among youth transitioning from childhood to adolescence, a period of time that is characterized by an erosion of activity patterns [19, 74]. Nevertheless, recent well-designed studies [42, 43, 75], such as the KISS intervention  have demonstrated that multi-component school-based interventions can increase PA and CRF in children. However, these studies have involved daily PE lessons, which may not be feasible in many schools.
Alternatively, interventions that provide professional learning opportunities for teachers and promote PA within existing PE lessons and throughout the school day (i.e., lunch time and recess) may provide a valuable framework for sustainable practice. Unfortunately, many primary school teachers lack the confidence and skills to teach PE effectively [40, 76], which may explain their reluctance to teach this subject in favor of traditional academic subjects (e.g., mathematics and science). The lack of focus on teacher professional learning in school-based PA interventions is surprising considering the importance placed on professional learning in the general education literature  and that teachers have specifically stated that professional development in PE, and teaching FMS in particular, is urgently needed and a high priority for improving PA-related outcomes in primary schools .
SCORES is an innovative multi-component school-based intervention targeting primary school children in low-income communities. The strengths of this study include the study design, the objective measures of PA, FMS and CRF and the comprehensive multi-component intervention. The findings from the study may be used to guide teacher pre-service education, professional learning and school policy in primary schools.
Children’s leisure activities study survey
Competence motivation theory
Child and Youth Resilience Measure
Health behavior in school-aged children
Moderate-to-vigorous physical activity
Physical activity enjoyment scale
Physical activity; Self-determination theory
Schools physical activity and nutrition survey, System for observing fitness instruction time
Test of gross motor development II.
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The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1471-2458/12/427/prepub
This project is funded by a Hunter Medical Research Institute (HMRI) grant, the Gastronomic Lunch and the Newcastle Jets.
The authors have no competing interests to declare.
DRL, PJM, RC, and RCP obtained funding for the research. All authors contributed to developing the protocols and reviewing, editing, and approving the final version of the paper. DRL, PJM, RCP and KW developed the intervention materials. TF, JS, LU, SAC and DD are responsible for data collection and cleaning. DRL is the guarantor and accepts full responsibility for the conduct of the study and the integrity of the data. All authors have read and approved the final manuscript.
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Lubans, D.R., Morgan, P.J., Weaver, K. et al. Rationale and study protocol for the supporting children’s outcomes using rewards, exercise and skills (SCORES) group randomized controlled trial: A physical activity and fundamental movement skills intervention for primary schools in low-income communities. BMC Public Health 12, 427 (2012). https://doi.org/10.1186/1471-2458-12-427
- Fundamental Movement Skill
- Physical Activity Behavior Change
- Physical Activity Policy
- Teacher Professional Learning
- Perceive Sport Competence