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Refereed/Peer-reviewed Wearable activity trackers offer an appealing, low-cost tool to address physical inactivity. This systematic review of systematic reviews and meta-analyses (umbrella review) aimed to examine the effectiveness of activity trackers for improving physical activity and related physiological and psychosocial outcomes in clinical and non-clinical populations. Seven databases (Embase, MEDLINE, Ovid Emcare, Scopus, SPORTDiscus, the Cochrane Library, and Web of Science) were searched from database inception to April 8, 2021. Systematic reviews of primary studies using activity trackers as interventions and reporting physical activity, physiological, or psychosocial outcomes were eligible for inclusion. In total, 39 systematic reviews and meta-analyses were identified, reporting results from 163 992 participants spanning all age groups, from both healthy and clinical populations. Taken together, the meta-analyses suggested activity trackers improved physical activity (standardised mean difference [SMD] 0·3–0·6), body composition (SMD 0·7–2·0), and fitness (SMD 0·3), equating to approximately 1800 extra steps per day, 40 min per day more walking, and reductions of approximately 1 kg in bodyweight. Effects for other physiological (blood pressure, cholesterol, and glycosylated haemoglobin) and psychosocial (quality of life and pain) outcomes were typically small and often non-significant. Activity trackers appear to be effective at increasing physical activity in a variety of age groups and clinical and non-clinical populations. The benefit is clinically important and is sustained over time. Based on the studies evaluated, there is sufficient evidence to recommend the use of activity trackers.

Refereed/Peer-reviewed The influence of a ‘group’ is often posited as a key factor that influences behavior. This is relevant in sports, where the presence of norms develops through interactions with important others. As such, an athlete’s perception of what is normative may have a significant role in how that athlete thinks and behaves. The present study undertakes a scoping review of research on norms in sports, specifically to describe the extent, scope and range of research conducted to date. Six online databases were searched to identify research published up to January 2021, from which 124 met inclusion criteria. To be included, articles were published peer-reviewed articles, written in English and evaluated norms within an athlete sample. The results suggest that the use of theoretical frameworks and conceptualizations of norms varied considerably and were used inconsistently. Most studies included in this review used a cross-sectional research design, were conducted within North America, and focused on adult athlete populations. This study identified that the concept of ‘norms’ has been examined extensively in sport, with an opportunity to explore norms in a wider range of samples and with advanced research methodologies to progress our understanding of norms in sport.

Background Although the health benefits of physical activity are well documented, most older adults are not sufficiently active. There is a need to explore approaches to physical activity promotion amongst older adults that meet the personal preferences and needs of participants, and that can be implemented on a large scale in community-based settings. The current study evaluates Daily Moves, a community-based physical activity program for older adults living in Adelaide, Australia. Methods The Daily Moves program, which ran almost entirely during the COVID-19 pandemic, provided participants with personalized plans and information about suitable physical activity promoting activities available in their local area. This study used an explanatory sequential mixed-methods approach to evaluate associations between participation in the Daily Moves program and physical activity engagement, physical function and psychosocial wellbeing, and to explore the experiences of Daily Moves participants through qualitative interviews, with a particular focus on the impact of the COVID-19 pandemic on program participation and enjoyment. Results The research evaluation included 69 older adults (mean age at baseline = 73.9 ± 5.6 years; 19 male). Following Daily Moves, participants reported an increase in self-report physical activity levels (mean increase = 1.8 days, p p p = 0.03); Timed Up and Go (mean decrease = 1.3 s, p Daily Moves, and that they felt connected with staff and other participants despite the onset of the pandemic. Conclusions This evaluation demonstrates that physical activity programs embedded within the community can provide flexible and tailored recommendations to participants, and that this approach can promote positive change in important indicators of health in older adults.

Refereed/Peer-reviewed The relationships between cognitive function and each of physical activity, sleep and sedentary behaviour in older adults are well documented. However, these three “time use” behaviours are co-dependent parts of the 24-hour day (spending time in one leaves less time for the others), and their best balance for cognitive function in older adults is still largely unknown. This systematic review summarises the existing evidence on the associations between combinations of two or more time-use behaviours and cognitive function in older adults. Embase, Pubmed, PsycInfo, Medline and Emcare databases were searched in March 2020 and updated in May 2021, returning a total of 25,289 papers for screening. A total of 23 studies were included in the synthesis, spanning >23,000 participants (mean age 71 years). Findings support previous evidence that spending more time in physical activity and limiting sedentary behaviour is broadly associated with better cognitive outcomes in older adults. Higher proportions of moderate-vigorous physical activity in the day were most frequently associated with better cognitive function. Some evidence suggests that certain types of sedentary behaviour may be positively associated with cognitive function, such as reading or computer use. Sleep duration appears to share an inverted U-shaped relationship with cognition, as too much or too little sleep is negatively associated with cognitive function. This review highlights considerable heterogeneity in methodological and statistical approaches, and encourages a more standardised, transparent approach to capturing important daily behaviours in older adults. Investigating all three time-use behaviours together against cognitive function using suitable statistical methodology is strongly recommended to further our understanding of optimal 24-hour time use for brain function in aging.

Objectives: The purpose of this research was two-fold: (1) to explore the relationship between descriptive and injunctive norm perceptions on stair-use, and (2) to examine the impact of social and non-social stair prompts on stair use. Design: Study 1 employed a cross-sectional design, and Study 2 had a time-series experimental design, with two baseline periods and two intervention periods. Method: A total of 226 adults completed the online survey for Study 1, reporting their social norm perceptions and individual stair use. For Study 2, 8007 individuals entered the stairwell or elevator over the four-week observation period, either measured by infrared people-counters installed across the entrance to the stairs or by observed trainers positioned near the elevators. Results: Study 1 showed a positive relationship between descriptive and injunctive norm perceptions and individual stair use. Study 2 found social prompts to significantly increase the proportion of individuals taking the stairs compared to baseline. The non-social prompts did not increase stair use beyond the effects of the social prompts. Conclusions: Individuals perceptions of what is typical and/or desirable behaviour relates to individuals self reported stair use. Further, findings support the use of social messages as an alternate message for prompting stair use in a university setting. Health practitioners may wish to harness the power of social influence and emphasise that stair use is typical and desirable. Refereed/Peer-reviewed

Issue Addressed: Public service announcements (PSA) targeting physical activity arenot always effective at enacting behaviour change. One factor that may impact mes-sage effectiveness is whether the message matches its intent (ie, what norm is being portrayed and received). The current study explored the effects of two PSAs on parents’ perceptions of outdoor play Methods: Parents (N = 333) completed a pre/post experimental online survey to examine the acute impact of a PSA on their perception of how often children play outdoors (ie, descriptive norms). Participants provided their descriptive norm perceptions and then were randomised to view one of two PSAs: (a) the Mr. Lonely PSA,which portrayed outdoor activity as not normative, and (b) a control message, which portrayed outdoor activity as the norm (VERB PSA). After viewing their PSA,descriptive norm perceptions were reported again. Results: A two‐way mixed ANOVA indicated that participants who viewed the Mr. Lonely PSA (where outdoor play was not normative) perceived that children and youth played outdoors less frequently immediately after watching the PSA compared to before viewing it (P < 0.05). No significant change occurred in the control condition Conclusions: PSAs can alter individuals’ perceptions of whether they perceive out-door play as normative among children and youth So what? As individuals align their behaviour with what is typical, PSA developers should be wary of what message is being conveyed. In terms of activity, portraying that outdoor play is not normative may not have the intended outcome. Refereed/Peer-reviewed

This exploratory study examined the interaction between messages conveying descriptive norms and image appeals on adults’ physical activity intentions. Using a pre-post experimental design, insufficiently active adults (N = 204) were randomly assigned to receive one of four messages, which included both a descriptive norm (prevalence of physical activity: high vs. low) and an image appeal (personality attributes: positive vs. negative). The results from an analysis of covariance, controlling for baseline physical activity intentions, revealed a significant interaction. Post-hoc analyses indicated that when the image appeal was positive, those who received the low descriptive norm had greater physical activity intentions than the high descriptive norm condition. No significant interaction was found for negative image appeals. Results provide preliminary evidence that physical activity intentions can be positively influenced even when physical activity is not considered the norm. Messages that include low descriptive norm information may benefit from including positive image appeals of those who do engage in physical activity, if aiming to increase physical activity intentions in insufficiently active adults. Refereed/Peer-reviewed

This experimental study examined the interaction between messages conveying different levels of descriptive norms and positive outcome expectations on university students’ engagement in moderate and vigorous physical activity over an exam period. Using a pre–post design, university students entering a final examination period (N = 74) were randomly assigned to one of four message conditions, receiving a message motivating them to exercise over the exam period. Messages included both a descriptive norm (how many others reported being active during a previous exam period; high vs. low) and a positive outcome expectation (those who exercise during exams report better grades; high vs. low). The results from an analysis of covariance (ANCOVA), controlling for baseline levels of daily physical activity, revealed a significant interaction. Post hoc analyses indicated that when the descriptive norm was high, those who received a high positive outcome expectation reported being more active during the exam period compared to those receiving the low positive outcome expectation. Results provide preliminary support for the idea that activity during an exam period can be positively influenced if individuals are presented with normative messages that (a) many others are being active during the exams and (b) many of those being active also are benefiting academically. Refereed/Peer-reviewed

This study examined the relationship between message variables and affective reactions with parents’ attitudes after seeing a physical activity mass media public service announcement (PSA). It was hypothesized that there would be a positive relationship between message variables (i.e., personal relevance, novelty of information, and feelings toward sponsoring organization) and parents’ attitudes toward their child/children’s physical activity after viewing the PSA. Furthermore, we explored whether discrete affective reactions were related to attitudes, beyond the effect of message variables. A secondary data analysis was conducted with parental responses to an online campaign evaluation survey (n = 267). Hierarchical regression analyses showed an overall positive relationship between all three message variables and attitudes. Furthermore, two discrete affective reactions were positively related to attitudes. Parents who endorsed feeling motivated or guilty after viewing the advertisement had more positive attitudes toward their children’s physical activity levels. This study represents an ecologically valid assessment of how message variables and affective reactions are related to attitudes within the context of a physical activity mass media campaign. The results provide guidance for the effective design of mass media physical activity campaigns. Refereed/Peer-reviewed

Objective: Two studies were conducted to examine the relationship between past physical activity, concurrent self-regulatory efficacy (CSRE), and current physical activity during the transition to university. Participants: Study 1 included 110 first-year undergraduate students recruited during October/November of 2012. Study 2 involved 86 first-year undergraduate students recruited during October/Novemberof 2013. Methods: Surveys were completed online, concurrently (Study 1) and prospectively (Study 2). Results: CSRE was found to positively predict current physical activity participation in both studies. However, the relation of CSRE to physical activity was attenuated when past behavior was taken into account. Conclusions: Physical activity is one goal that university students pursue concurrently with other goals. Not only is current planned activity related to one's past participation in physical activity, it is also related to self-regulatory beliefs about managing that activity in the new context of university life. Refereed/Peer-reviewed