Awareness and knowledge of the Canadian 24-Hour Movement Guidelines for Adults among adults living in Canada.

Awareness and knowledge of national movement behaviour guidelines are needed to influence individual behaviour and public health policies. This study assessed the awareness and knowledge of the Canadian 24-Hour Movement Guidelines for Adults Aged 18-64 Years and Adults Aged 65 Years or Older (24HMG) recommendations among adults living in Canada across three timepoints. Online surveys were distributed to representative samples of adults living in Canada over a 6-month period. Findings suggest that short-term dissemination efforts were successful in increasing awareness of the 24HMG following guideline release. However, other strategies, such as education, may be needed to influence knowledge of guideline recommendations.

Relationships between sport and exercise participation and subjective well-being among adults with physical disabilities: Is participation quality more important than participation quantity?

Sport and exercise participation are associated with small, albeit positive changes in subjective well-being (SWB). Recent theorizing has emphasized the importance of distinguishing between performance aspects (i.e., frequency, intensity, time engaged) and the experiential aspects of sport and exercise participation among people with disabilities. This study assessed the relative contributions of time spent participating in sport and exercise (a performance measure) versus measures of participation experiences, in explaining variance in SWB. Participants were 535 adults with physical disabilities, recruited through a nation-wide survey, who participated in sport (n = 271; 62% male; 44 ± 14 years) or exercise (n = 264; 42% male; 57 ± 14 years). They completed measures of minutes/week of sport or exercise participation, experiential aspects of participation, and SWB (overall life satisfaction, satisfaction with physical, psychological and social life-domains, and positive/negative affect). Hierarchical multiple regression analyses showed minutes/week of sport did not explain significant variance in any SWB measure, but sport participation experiences explained significant variance (9.2%-20.9%) in all SWB measures (p < 0.05). Similarly, minutes/week of exercise explained significant variance only in physical life-domain satisfaction (ΔR2 = 2.6%, p = 0.026), but exercise participation experiences explained significant variance (4.8%-10.7%) in all SWB measures (p < 0.05). Experiences of belonging and mastery were particularly strong, consistent predictors across SWB outcomes. These results suggest participation experiences better explain relationships between sport and exercise participation and SWB than time spent performing sport and exercise. Findings have implications for designing future studies to test the effects of sport and exercise on SWB, and developing theories and interventions to explain and maximize the use of sport and exercise to improve SWB in adults with disabilities.

Physical Activity Together for Multiple Sclerosis (PAT-MS): A randomized controlled feasibility trial of a dyadic behaviour change intervention.

Background: Many people with advanced multiple sclerosis (MS) and their care-partners do not engage in sufficient physical activity (PA) for health benefits. We developed "Physical Activity Together for MS (PAT-MS)", a 12-week dyadic behavioural intervention, to promote PA among these dyads. Herein, we evaluated the feasibility of PAT-MS before a definitive trial. Methods: A randomized controlled feasibility trial, with 1:1 allocation into the intervention or wait-list control condition. Predefined progression criteria included rates of recruitment, retention, safety, participant satisfaction and adherence. Changes in self-reported and accelerometer-measured PA were assessed at baseline and post-intervention using mixed-factor ANOVAs. Effects sizes were calculated as Cohen's d. Results: The recruitment rate (i.e., 20 participants in 10 months) was not acceptable. However, retention (80%) was acceptable. No serious adverse events were reported. There were high levels of participant satisfaction with the intervention (content (median = 6 out of 7), facilitator (median = 7 out of 7), and delivery (median = 5 out of 7)) and adherence (92% of the group sessions, 83% of the individual support calls, and 80% of the practice activities were completed). There were statistically significant time-by-condition interactions on self-reported PA, steps/day, and %wear time and minutes in sedentary behaviour, and moderate-to-vigorous PA from baseline to post-intervention in people with MS and their family care-partners. Conclusion: PAT-MS appears feasible, safe, and efficacious for PA promotion in MS dyads. We established effect size estimates to power a future definitive trial and identified necessary methodological changes to increase the efficiency of study procedures and improve the quality of the intervention. Trial registration: ClinicalTrials.gov NCT04267185; Registered February 12, 2020, https://clinicaltrials.gov/ct2/show/NCT04267185.

"It has to be more than exercise": exploring multiple perspectives to community-based exercise program design for persons with breast cancer.

PURPOSE: Connecting persons with cancer to exercise resources and/or supports requires a diverse team of professionals. As such, there is merit to engaging multiple individuals or "partners" along the cancer pathway to explore the relevant features of community-based exercise program (CBEP) design. The purpose of this study was to explore multi-partner perspectives to CBEP design for persons diagnosed with breast cancer (PWBC) to inform the implementation of a CBEP in a local setting. METHODS: PWBC, health care professionals and qualified exercise professionals participated in one of four 60-min focus group discussions. Rich dialogue about preferred program environments, program delivery teams, and core program practices was encouraged using a semi-structured discussion guide. Focus groups were audio recorded, transcribed verbatim, and analyzed using inductive thematic analysis. RESULTS: Five main themes were identified based on focus group discussions, each pointing to an important feature of CBEP design for PWBC. Themes included the desire for CBEPs to incorporate elements designed to improve cancer literacy, provide opportunities to participate with peers, foster self-efficacy, prioritize program accessibility, and meaningfully integrate CBEPs within a network of supportive cancer care. CONCLUSION: The collective effect of fostering such elements in CBEPs may serve to increase the uptake and maintenance of exercise among PWBC; ultimately enhancing their overall well-being and quality of life.

I AM FAMILY: Understanding the adapted sport experiences of family members of military personnel with physical and psychological illnesses and injuries through the lens of the Invictus Games.

Family are influential actors in adapted sport participation. However, little is known about their experiences with adapted sport. The current study sought to explore the experiences of families in adapted sport through the context of the Invictus Games, an international adapted sport competition for military personnel with physical and psychological illnesses and injuries that is unique in its inclusion of family programming. Family members (n = 21; partners, parents, siblings, and children) of Invictus Games Toronto 2017 competitors participated in semi-structured interviews. Data were analyzed using reflexive thematic analysis. Three themes were identified: recognition of family experiences during service and after onset of disability; creating a sense of belonging; and improving family knowledge and perceptions. This study provides insight regarding how adapted sport events can support the well-being of both individuals with illnesses and injuries and their families.

'On-the ground' strategy matrix for fostering quality participation experiences among persons with disabilities in community-based exercise programs.

OBJECTIVE: The purposes of this paper are to (1) document the generation and refinement of a quality participation strategy list to ensure resonance and applicability within community-based exercise programs (CBEPs) for persons with physical and intellectual disabilities, and (2) identify theoretical links between strategies and the quality participation constructs. METHODS: To address purpose one, a list of strategies to foster quality participation among members was extracted from qualitative interviews with providers from nine CBEPs serving persons with physical disabilities. Next, providers from CBEPs serving persons with physical (n = 9) and intellectual disabilities (n = 6) were asked to identify the strategies used, and examples of their implementation, within their programs. Additional strategies noted by providers and in recent published syntheses were added to the preliminary list. A re-categorization and revision process was conducted. To address purpose two, 22 researchers with expertise in physical and/or intellectual disability, physical activity, participation and/or health behaviour change theory completed a closed-sort task to theoretically link each strategy to the constructs of quality participation. RESULTS: The final list of 85 strategies is presented in a matrix. Each strategy has explicit examples and proposed theoretical links to the constructs of quality participation. CONCLUSIONS: The strategy matrix offers a theoretically-meaningful representation of how quality participation-enhancing strategies can be practically implemented "on-the-ground" in CBEPs for persons with disabilities.

Development of a ParticipACTION App-Based Intervention for Improving Postsecondary Students' 24-Hour Movement Guideline Behaviors: Protocol for the Application of Intervention Mapping.

BACKGROUND: The Canadian 24-Hour Movement Guidelines for adults provide specific recommendations for levels of physical activity, sedentary behavior, and sleep (ie, the movement behaviors) required for optimal health. Performance of the movement behaviors is associated with improved mental well-being. However, most postsecondary students do not meet the movement behavior recommendations within the Canadian 24-Hour Movement Guidelines and experience increased stress and declining well-being, suggesting the need for an intervention targeting students' movement behaviors. OBJECTIVE: We aimed to develop and implement a theory-informed intervention intended to improve the movement behaviors and mental well-being of first-year postsecondary students. METHODS: The Intervention Mapping protocol was applied in the development and implementation of the intervention. Intervention Mapping entailed performing a needs assessment, determining the intervention outcomes, selecting theory- and evidence-based change methods and applications, preparing and producing intervention plans and materials, developing the implementation plan, and finally developing an evaluation plan. The Theoretical Domains Framework and the Behavior Change Wheel were also used in conjunction with the Intervention Mapping protocol to ensure a solid theoretical basis for the intervention. This protocol led to the development and implementation of a 6-week, theory-informed ParticipACTION app-based intervention aimed at helping first-year postsecondary students improve their movement behaviors and mental well-being. The developed app content provided students with information on each of the movement behaviors and behavioral strategies (ie, goal setting, action planning, monitoring, and coping planning). The use of Intervention Mapping allowed for the continuous involvement of various multidisciplinary partners and end users, ensuring that the intervention design and implementation was appropriate for the target audience. The feasibility, acceptability, and potential impact of the intervention will be examined in a subsequent proof-of-concept study at 2 Canadian university campuses. RESULTS: Participant recruitment occurred during September 2021, and the intervention was conducted from October to December 2021. The deadline for completion of the postintervention questionnaire by participants was mid-December 2021. The analysis of data examining the feasibility, acceptability, and potential impact of the intervention began in January 2022, with the publication of the proof-of-concept evaluation expected in 2023. CONCLUSIONS: Intervention Mapping with the Theoretical Domains Framework and Behavior Change Wheel was a useful approach to combine evidence and theoretical concepts to guide the design and implementation of a ParticipACTION app-based intervention targeting postsecondary students' movement behaviors and mental well-being. This process may serve as an example for other researchers developing multiple behavior change app-based interventions. Should the forthcoming evaluation demonstrate the intervention's acceptability, feasibility, and potential impact, the intervention may provide a scalable method of improving postsecondary students' movement behaviors and mental well-being. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR1-10.2196/39977.

A small change approach on adiposity, lean mass and bone mineral density in adults with overweight and obesity: A randomized controlled trial.

We sought to determine whether small changes in physical activity and diet could prevent adverse changes in body composition over 2 years in adults with overweight and obesity. Previously inactive adults (N = 289) were included in a secondary analysis of data derived from a 3-year, single-centre, two-arm, longitudinal randomized controlled trial. Participants were randomized to a small change approach (N = 144, body mass index: 32.4 ± 4.2 [mean ± standard deviation], age: 52.3 ±. 10.6 years) or usual care (N = 145, body mass index: 32.4 ± 4.2, age: 53.1 ± 10.6 years). Small change approach participants were counselled to make small changes in diet and physical activity, while usual care participants were asked to maintain their usual lifestyle. Adiposity, lean mass and bone mineral density were measured by dual-x-ray absorptiometry. The change in total adiposity was significantly greater in the small change approach group than usual care at 6 and 12 months but did not remain significant at 24 months (mean change [standard error] -0.8 [0.4] vs. -0.7 [0.4] kg; difference 0.6, 95% confidence interval [CI] -1.2 to 1.1). Changes in visceral fat were significantly greater in the small change approach than usual care at 6 and 12 months but did not remain significant at 24 months (-0.04 [0.03] vs. 0.02 [0.03] kg; difference 0.06, 95% CI: -1.5 to 0.3). Changes in lean mass or bone mineral density were not significantly different between groups at any time point (all p > 0.1). The small change approach did not prevent gains in adiposity or losses in lean mass compared to usual care at 2 years in adults with overweight or obesity. No difference from baseline in adiposity, lean mass or bone mineral density was observed in either arm of the trial.

Expert Appraisal of the 2022 Canadian Para Report Card on Physical Activity for Children and Adolescents With Disabilities.

This report provides an expert appraisal of the Canadian Para Report Card on physical activity (PA) for children and adolescents with disabilities. Thirteen indicators were graded by a panel of researchers, representatives from disability and PA organizations, and parents of children and adolescents with disabilities using benchmarks of the Global Matrix 4.0 and previous Canadian PA Report Cards. Facilitated panel discussions were used to appraise the available evidence based on data gaps, opportunities, and recommendations. The available data sources included four nationally generalizable or representative data sets. Grades were assigned to 8/13 indicators and ranged from B+ to F. Data gaps in measurement and national surveillance systems were identified. Ableism was an issue identified within some of the reporting benchmarks. The absence of PA from existing accessibility legislation in Canada was a policy gap of concern. Recommendations related to research, surveillance, and policy are provided to enhance PA among children and adolescents with disabilities in Canada.

Prioritizing Components of a Dyadic Physical Activity Intervention for People With Moderate to Severe Multiple Sclerosis and Their Care Partners: A Modified e-Delphi Study.

BACKGROUND: People with moderate to severe multiple sclerosis (MS) and their family care partners do not engage in sufficient physical activity (PA) for health benefits. Dyadic PA interventions need to be developed to benefit each individual and the dyad. The objective of this study was to engage expert stakeholders in prioritizing and refining key intervention content, delivery methods, and the practical/logistical aspects of a dyadic PA intervention for persons with MS and their care partners. METHODS: Thirty-two stakeholders (14 clinicians, 11 people with MS, 5 MS care partners, and 2 representatives of organizations that provide support services for people with MS and/or MS care partners) completed 2 rounds of a modified e-Delphi survey. In round 1, participants rated items across 3 domains: key intervention content (n = 8), delivery methods (n = 9), and practical/logistical aspects (n = 4). Participants contributed additional ideas about these domains, which were incorporated into round 2. Items that did not reach consensus in round 1 were forwarded to round 2 for rerating. Data were analyzed using descriptive statistics and content analysis. RESULTS: A 24-item list of recommendations was generated, including ensuring that presentation of the intervention content encouraged lifestyle activities in addition to exercise, using videoconferencing rather than teleconferencing as a delivery platform, and stressing the importance of flexibility during the support calls. CONCLUSIONS: Feedback will be used to improve the quality of the intervention. The next step in this line of research involves evaluating the refined intervention in a pilot feasibility trial.

Examining the Impact of the Rio 2016 Paralympic Games on Explicit Perceptions of Paralympians and Individuals with Disabilities.

One of the goals of the Paralympic Games is to improve social attitudes toward individuals with physical disabilities (PD) through exposure to parasport and Paralympic mass media messaging. This study assessed whether this goal is achieved by examining changes in explicit perceptions toward Paralympians and individuals with PD over the course of the Rio 2016 Paralympics. Adults without PD (n = 119) were randomized into two groups: (1) an exposure group that was e-mailed local Paralympic Games coverage information before each day of the Games; and (2) a control group that received no e-mails about coverage. All participants completed measures assessing explicit perceptions (i.e., warmth and competence) of Paralympians and individuals with PD two weeks before, two weeks after, and three months following the Games. Exposure to Paralympic media was also assessed. No differences were present between groups for time spent watching the Games, explicit perceptions, or demographics (ps > .05). Thus, data was collapsed across groups for the main analyses. Repeated measure ANOVAs with Bonferroni adjustments indicated that explicit perceptions of warmth decreased over time for both Paralympians and individuals with PD (p ≤ .005). However, Paralympians were rated as significantly more competent and warmer than individuals with PD (ps < .001) at each timepoint. Findings suggest that public exposure to the Paralympics may have more value for Paralympians than the larger disability community. Further research should explore how to disseminate communication regarding the Paralympics to improve social attitudes and optimize integration of all people with disabilities in society.

Investigating Strategies Used to Foster Quality Participation in Recreational Sport Programs for Children With Autism Spectrum Disorder and Their Perceived Importance.

Quality experiences in sport programming for children with autism spectrum disorder (ASD) can promote physical and psychosocial benefits and long-term quality participation (QP). Unfortunately, children with ASD often experience sport participation barriers and, consequently, participate less in sport compared with children without disabilities. This study investigated QP priorities and strategies that could foster QP for children with ASD. Caregivers (n = 13), volunteers (n = 26), and staff (n = 14) involved in sport programming for children with ASD rated experiential elements of QP using the Measure of Experiential Aspects of Participation. In addition , a two-round Delphi survey with staff (Round 1: n = 11; Round 2: n = 13) generated 22 strategies for promoting QP-each rated highly with regard to importance (5.69-6.85 on a 7-point scale). Strategies were substantiated with published research evidence. Findings informed the development of a QP tool designed to help instructors implement identified strategies in hopes of improving sport experiences for children with ASD.

Exploring the Relationship Between Quality and Quantity of Physical Activity Participation in Community-Based Exercise Programs for Persons With Physical Disabilities.

Community-based exercise programs for persons with disabilities promote greater quantity of leisure-time physical activity (LTPA) participation among their members, perhaps because of the quality experiences fostered by the program. This study aimed to explore the relationship between quality and quantity of physical activity participation in the context of community-based exercise programming and the role that gender plays in this relationship. Adults with physical disabilities (N = 91; Mage = 55, 49 men) from three community-based exercise programs across Canada completed a survey asking about quality participation (Measure of Experiential Aspects of Participation [MeEAP]) and LTPA. Structural equation modeling was used to examine the relationship between MeEAP scores and LTPA. Quality participation was not related to LTPA, even with gender included as a moderator. Men reported higher levels of LTPA and quality participation than women, highlighting gender differences that should be considered when researching and designing exercise programs for individuals with disabilities.

Timing of 24-hour movement behaviours: implications for practice, policy and research. / Répartition des comportements en matière de mouvement sur 24 heures : implications en termes de pratique, de politiques et de recherche.

For health benefits, Canadians need to: move when it suits them; remove screens from bedrooms and limit screen use prior to bedtime; and adjust bedtime so that they can sleep the recommended amount. The 24-Hour Movement Guidelines Communication Toolkit has resources that can be used across settings to help Canadians optimize movement behaviours throughout the day.

Pour obtenir des bienfaits sur leur santé, les Canadiens et Canadiennes doivent : bouger au moment qui leur convient; retirer les écrans de leur chambre et limiter l'utilisation d'écrans avant de se coucher; adapter l'heure de leur coucher de manière à avoir le nombre d'heures de sommeil recommandé. La trousse de communication des Directives canadiennes en matière de mouvement sur 24 heures propose des ressources utilisables en fonction de diverses situations et divers milieux pour aider la population canadienne à optimiser ses comportements en matière de mouvement tout au long de la journée.

A small change approach to prevent long-term weight gain in adults with overweight and obesity: a randomized controlled trial.

BACKGROUND: Efforts to manage obesity through weight loss are often unsuccessful as most adults are not able to sustain the major changes in behaviour that are required to maintain weight loss long term. We sought to determine whether small changes in physical activity and diet prevent weight gain in adults with overweight and obesity. METHODS: We randomized 320 sedentary adults with overweight or obesity to monitoring alone (MA, n = 160) or a small change approach (SCA, n = 160). In Phase I (2 yr), MA participants were asked to maintain their normal lifestyle and SCA participants were counselled to make small changes in diet and physical activity, namely a suggested increase in daily step count of 2000 steps with a decrease in energy intake of 100 kcal per day, with group and individual support. Phase II (1 yr) was a passive follow-up period. The difference in change in body weight between groups at 24 and 36 months from baseline was the primary outcome. Additional outcomes included waist circumference and cardiorespiratory fitness. RESULTS: Overall, 268 participants (83.8%) completed the 2-year intervention, and 239 (74.7%) returned at the end of the follow-up period at 3 years. The difference in body weight change between the SCA and MA groups was significant at 3, 6, 12 and 15 months from baseline, but was no longer significant at 24 months (mean change 0.9 [standard error (SE) 0.5] kg v. -0.4 [SE 0.5] kg; difference -0.6, 95% confidence interval [CI] -1.9 to 0.8) or at 36 months (-1.2 [SE 0.8] v. -0.7 [SE 0.8] kg; difference -0.5, 95% CI -2.2 to 1.2). Changes in waist circumference and cardiorespiratory fitness were not significantly different between groups at 24 or 36 months (both p > 0.1). INTERPRETATION: The SCA did not prevent weight gain compared with monitoring alone at 2 or 3 years in adults with overweight or obesity. On average, we observed prevention of weight gain in both arms of the trial. TRIAL REGISTRATION: ClinicalTrials.gov, no. NCT02027077.

Exploring experiential elements, strategies and outcomes of quality participation for children with intellectual and developmental disabilities: A systematic scoping review.

OBJECTIVE: Quality participation, defined as satisfying and enjoyable involvement, is one of the most valued life outcomes for children with intellectual and developmental disabilities. To broaden understandings of quality participation, our review explored participation experiences of children with intellectual and developmental disabilities. METHOD: Utilising an established systematic scoping review methodology, data were collected using three search tools (peer-reviewed databases, grey literature databases and Google). Inclusion criteria required that children with intellectual and developmental disabilities and/or their proxies provided descriptions of quality participation experiences in any life domain. RESULTS: A total of 35 articles met the inclusion criteria. Quality participation strategies (30 total) and outcomes (8 total) were categorised according to six experiential elements (autonomy, belongingness, challenge, engagement, mastery and meaning). CONCLUSION: Findings provide novel insight for building quality experiences across current and future participation initiatives.

Experiences and perceived outcomes of persons with multiple sclerosis from participating in a randomized controlled trial testing implementation of the Canadian Physical Activity Guidelines for Adults with MS: an embedded qualitative study.

PURPOSE: To describe the experiences and outcomes of participants who enrolled in a randomized controlled trial testing implementation of the Canadian Physical Activity Guidelines for Adults with Multiple Sclerosis. MATERIALS AND METHODS: Fifty-six persons with MS who enrolled in the trial participated in the current study which involved a semi-structured interview at 16-week follow-up. Interview data were analyzed using thematic analysis. RESULTS: Of the 56 participants, 26 ended up enrolling in a community-based exercise program specialized for persons with multiple sclerosis (MS), 7 joined another gym, 4 trained at home, and 17 took part in no specific program. Across all study participants, positive outcomes were reported across a number of domains including mental function, knowledge about the physical activity (PA) and MS, physical function, advocacy of PA to peers, daily participation, and body awareness. For those who enrolled in the community-based program, having a supportive and inclusive environment was critical to their PA experiences. Furthermore, environmental supports, particularly knowledgeable and supportive trainers and similar peers, contributed largely to the positive mental changes and increased knowledge gained. CONCLUSIONS: Our study provides support for the promotion of PA in persons with MS and the development of community-based programs adapted for people with MS.IMPLICATIONS FOR REHABILITATIONEngaging in regular physical activity is associated with many positive benefits and outcomes for people with MS.Supportive elements such as a community of peers who also have MS, adaptive equipment, and trainers who are knowledgeable about MS are especially important for creating positive experiences including enjoyment from and desire to engage in regular physical activity.This study provides support for further advocacy (e.g., by persons with MS directly) and referral to community-based exercise programs adapted for people with MS.

Developing and Disseminating Physical Activity Messages Targeting Parents: A Systematic Scoping Review.

BACKGROUND: Physical activity (PA) messages have demonstrated success in targeting parent support for PA. However, little research exists to inform the development and dissemination of optimally effective PA messages targeting parents. A synthesis of existing literature is necessary to inform message development and dissemination strategies. Unique considerations for parents of children with disabilities (CWD) should be identified given a need for inclusive PA messaging that consider the needs of CWD and their families. METHODS: Systematic scoping methodologies included a peer-reviewed literature search and expert consultation to identify literature regarding PA messages targeting parents, and considerations for parents of CWD. RESULTS: Thirty-four articles that met eligibility criteria were included for examination. Twenty-eight studies were identified regarding the PA messages targeting parents; six themes and 12 subthemes emerged from these articles. Six studies were identified regarding unique considerations for parents of CWD; three themes and four subthemes emerged from these articles. CONCLUSIONS: Through knowledge synthesis, this research can contribute to a knowledge translation process to inform practice guidelines for the development and dissemination of PA messages targeting parents, while also providing unique considerations for PA messages targeting parents of CWD.

Physical Activity Together for People With Multiple Sclerosis and Their Care Partners: Protocol for a Feasibility Randomized Controlled Trial of a Dyadic Intervention.

BACKGROUND: Physical activity (PA) is beneficial for all people; however, people affected by multiple sclerosis (MS) find regular PA challenging. These people may include individuals with advanced disabilities and their care partners. OBJECTIVE: The objective of this study is to determine the feasibility of a dyadic PA intervention for people with advanced MS and their care partners. METHODS: This study is a randomized controlled feasibility trial of a 12-week intervention, with 1:1 allocation into an immediate intervention condition or delayed control condition. A target of 20 people with MS-care partner dyads will be included. The outcomes will be indicators of process, resources, management, and scientific feasibility. Participant satisfaction with the intervention components will be evaluated using a satisfaction survey. The subjective experience of participation in the study will be explored using semistructured interviews. RESULTS: The project is funded by the Consortium of Multiple Sclerosis Centers. This protocol was approved by the Ottawa Hospital Research Ethics Board (20190329-01H) and the University of Ottawa Research Ethics Board (H-09-19-4886). The study protocol was registered with ClinicalTrials.gov in February 2020. The findings of this feasibility trial will be disseminated through presentations at community events to engage the MS population in the interpretation of our results and in the next steps. The results will also be published in peer-reviewed journals and presented to the scientific community at national and international MS conferences. CONCLUSIONS: The data collected from this feasibility trial will be used to refine the intervention and materials in preparation for a pilot randomized controlled trial. TRIAL REGISTRATION: ClinicalTrials.gov NCT04267185; https://clinicaltrials.gov/ct2/show/NCT04267185. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/18410.

Examining differences in parents' perceptions of children's physical activity versus screen time guidelines and behaviours.

AIM: Most Canadian and Australian children do not meet Physical Activity Guidelines (PAG) or Screen Time Guidelines (STG). Regarding the social issue advertising believability model (SIABM), parental support for these behaviours may depend upon how believable parents find guideline messages. The aim of the study was to examine differences in parents' SIABM variables and perceived behavioural control for PAG and STG messages. METHODS: Data were collected online; 499 Canadian parents with at least one child aged 5-11 years (75.6% mothers) participated. Differences in model variables were analysed using analyses of variance. RESULTS: Parents demonstrated greater issue involvement, attitudes towards the issue, parental support attitudes and perceived behavioural control for the PAG compared to the STG (d > 0.10). Mothers believed the messages more and had more favourable attitudes towards the issues as compared to fathers (d > 0.21). CONCLUSIONS: Parents' evaluations of PAG messages and corresponding supportive behaviours were generally more positive than STG. Future messages should emphasise supportive behaviours for screen time reduction that are feasible and enjoyable for children.