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Although the independent within-person association between physical activity and sedentary behaviour with valence in daily life has been extensively studied, few studies have used compositional data analysis to examine how different movement behaviour compositions are related to valence in daily life. This study aimed to examine the within-person association between wake-time movement behaviour compositions with affective valence and the extent to which replacing time spent sedentary with physical activity was associated with valence within individuals in daily life. A 7-day ecological momentary study design was used whereby 94 Canadian university students (M age  = 19.45, SD = 2.21, 78.7 % female) reported on affective valence using an adapted version of the Feeling Scale at 7 randomly timed prompts each day. In addition, activPAL accelerometers were worn continuously by participants on their right thigh for the duration of the study to determine time spent engaging in sedentary behaviours and physical activity. Compositional data analysis with isotemporal substitution models were used to examine the within-person association between movement behaviour compositions and affective valence. The within-person association between movement behaviours and affective valence was weak (r 2  = 0.013). Nevertheless, engaging in less sedentary time than usual and instead engaging in physical activity was significantly related to more positive affective valence. Considering light intensity physical activity (LPA) and moderate-to-vigorous intensity physical activity (MVPA) separately, replacing time spent sedentary with time engaged in MVPA and LPA both had a significant positive association on affective valence, although the association with MVPA was stronger than the association with LPA. The results provide unique insights into how replacing sedentary time with physical activity in daily life, especially MVPA, may be associated with more feelings of pleasure. These results may be useful to help inform the development of just-in-time adaptive interventions., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Eva Pila reports financial support was provided by Western University. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Body-related shame and guilt are theorized to be time-varying affective determinants of physical activity, yet research has predominantly relied on self-report measures of physical activity and between-person associations. To address these limitations, the present study used ecological momentary assessment to examine within- and between-person associations between body-related shame and guilt, and subsequent time spent in moderate-to-vigorous physical activity (MVPA) measured by continuously worn accelerometers. University students (n = 98; 79.6% female; m age  = 19.45) were prompted 49 times over seven days to report body-related shame and guilt, and wore activPAL accelerometers to monitor movement behaviours. Higher levels of within-person body-related guilt, but not shame, were associated with increased subsequent time spent in MVPA. Contrary to existing literature, neither body-related shame nor guilt demonstrated a significant association with average levels of MVPA between individuals. These findings support theoretical propositions that body-related guilt may impact engagement in physical activity in daily life., Competing Interests: Declaration of competing interest This work was supported by Western University – Social Sciences and Humanities Research Council (SSHRC) Explore Grant (2020-2021) awarded to EP; KS was supported by SSHRC Canadian Graduate Scholarship – Doctoral (CGS-D) award (2021–2024). The authors have no conflicts of interest to declare. Correspondence concerning this article should be addressed to Eva Pila, 1151 Richmond St, London, Ontario, Canada, N6A 3K7. Email: epila@uwo.ca., (Copyright © 2023 Elsevier Ltd. All rights reserved.)

Background: Women with polycystic ovary syndrome (PCOS) experience general and PCOS-specific barriers that limit their engagement with exercise and contribute to high attrition from exercise programs, hindering the potential benefits of exercise to address their increased cardio-metabolic risk. A positive remembered affective response can predict future intentions and adherence to exercise prescription., Objectives: To compare the longitudinal changes in remembered affect to high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) in women with PCOS and to determine whether longitudinal changes in remembered affect are correlated with changes in fitness, body mass index, adherence and exercise enjoyment., Methods: Physically inactive, overweight women with PCOS were randomly assigned to 12 weeks of either HIIT (n = 15) or MICT (n = 14) (3 sessions per week). Remembered affective valence (Feeling Scale) was collected after each exercise session. Cardiorespiratory fitness (VO 2peak ) was assessed at baseline and post-intervention. Exercise enjoyment was assessed post-intervention., Results: The longitudinal changes in the remembered affect were more positive in the HIIT group compared to MICT (β = 0.017, p = 0.047). HIIT was also considered more enjoyable than MICT (p = 0.002). Adherence was high in both groups (>90%). We found a moderate correlation with longitudinal changes between the remembered affect and change in fitness (r s  = 0.398) and exercise enjoyment (r s  = 0.376) using the combined group, however, these were not statistically significant (p = 0.054 and p = 0.064, respectively)., Conclusions: HIIT demonstrated a more positive longitudinal remembered affective response and greater exercise enjoyment compared to MICT in overweight women with PCOS., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Ltd. All rights reserved.)

Purpose: This meta-analysis aimed to determine the effect of interventions targeting multiple modifiable health behaviors (i.e., physical activity/sedentary behaviors, nutrition/diet, sleep, substance use) on depression and anxiety in young people., Methods: A search of electronic databases from inception until May 2020 was conducted. Randomized controlled trials (RCTs) that explicitly targeted at least two modifiable health behaviors, measured anxiety or depression at baseline and after intervention using a validated instrument, and included participants with an average age between 12 and 25 years were included. The effect of interventions was synthesized using random effects meta-analysis., Results: A total of 14 RCTs reporting on depression and six RCTs reporting on anxiety were included in the quantitative synthesis. Results showed that although interventions targeting multiple modifiable health behaviors did not produce significant reductions in symptoms of depression (g¯ = -.16, 95% confidence interval [CI] = [-.34, .02], 95% prediction interval [PI] = [-.80, .48], very low certainty evidence) or anxiety (g¯ = -.55, 95% CI = [-1.36, .26], 95% PI = [-3.48, 2.83], very low certainty evidence) across all young people, there was a significant difference in the effect of interventions on depression based on intervention type (Q = 8.37, df = 2, p = .012). Specifically, interventions targeting multiple modifiable health behaviors delivered to groups of young people with an elevated risk of depression had a favorable effect (g¯ = -.28, 95% CI = [-.52, -.05], 95% PI = [-1.04, .47]) on symptoms of depression compared with controls., Conclusions: Although not universally effective, this meta-analysis establishes the potential efficacy of targeted interventions aiming to improve multiple modifiable health behaviors to address depression in young people at elevated risk of depression. More research is needed to understand the effect of such interventions on symptoms of anxiety in young people., (Copyright © 2021 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.)

Socioeconomically disadvantaged groups are less likely to be physically active. Walking is important to public health, therefore understanding correlates of walking will inform the development of targeted interventions. The aim of this systematic review was to examine the correlates of walking among socioeconomically disadvantaged adults. PubMed/MEDLINE and Scopus were searched up to February 2020 and titles/abstracts and full-texts were screened against eligibility criteria. Methodological quality was assessed. Correlates were synthesized when two or more comparisons were available. 35 studies were selected for synthesis. 21 examined overall walking, 16 examined leisure-time walking and 9 examined walking for transport (8 examined two or more types of walking). Employment status, home ownership, self-rated health, density or number of social ties, perceived neighborhood aesthetics, perceived walkability and perceived individual safety were positively associated with overall walking. Social support for physical activity from friends and family and perceived individual safety were positively associated with leisure-time walking. Objective walkability, perceived walkability and perceived individual safety were positively associated with walking for transport. Most studies were cross-sectional, did not report response rates and used a validated measure of physical activity. Strategies to improve self-rated health, social ties, neighborhood aesthetics, walkability and perceptions of individual safety should be the focus of interventions that aim to improve walking among socioeconomically disadvantaged groups. Recommendations for future studies include the need to focus on leisure-time walking and walking for transport; the correlates of walking in males; prospective longitudinal designs; psychological, cognitive and emotional variables; and social, behavioral attributes and skills., Competing Interests: Declaration of competing interest The authors declare no conflicts of interest., (Copyright © 2020 Elsevier Ltd. All rights reserved.)