Motivation and physical activity levels in bariatric patients involved in a self-determination theory-based physical activity program

ObjectiveThis study examines the associations between pre-to post-intervention changes in motivation and physical activity (PA) levels of bariatric patients involved in a 6-month postoperative PA program based on self-determination theory (SDT). We also explore the extent to which patients’ perception of autonomy support and basic psychological need satisfaction during the program were associated with changes in their motivation to exercise.MethodForty patients were assigned to a motivational PA intervention (MPAI-G) or to a control group (CG). Both groups completed questionnaires assessing the variables of interest and wore GT3X accelerometers before surgery and after the program.ResultsThirty-two participants (78.1% female) completed all measures and were included in the present analyses. CG showed greater increases in integrated (d = −1.60, 95% CI [−2.40, −0.81]) and identified regulation (d = −0.75, 95% CI [−1.47, −0.03]) than MPAI-G. However, the MPAI-G experienced increases in introjected regulation (d = 1.95, 95% CI [1.11, 2.79]) and greater decreases in external regulation (d = −1.00, 95% CI [−1.74, −0.27]) than CG, which were associated with decreases in sedentary activity and increases in light and total PA. Oppositely to the CG, amotivation decreased in the MPAI-G (d = −2.98, 95% CI [−3.98, −1.97]) and it was related to increases in light and total PA. Changes in exercise motivation were associated with perceived autonomy support and basic psychological need satisfaction during the program.ConclusionThe SDT-based PA program gave rise to greater changes in controlled forms of motivation and amotivation than in autonomous motivation in post-bariatric surgery patients.     

Integrated Treatment Programmes for Mothers with Substance Use Problems: A Systematic Review and Meta-analysis of Interventions to Prevent Out-of-home Child Placements

Approximately half of mothers receiving substance use treatment are involved with childcare proceedings. This review aims to determine whether integrated treatment programmes for mothers with substance use problems are effective in preventing out-of-home placement (temporally/permanent) and influencing other maternal factors such as patterns of substance use, treatment completion and parenting behaviours. Six trials were identified—two randomised controlled trials and four non-randomised controlled studies. The pooled sample of participants was 1717. The results showed that mothers who participated in integrated treatment programmes were significantly less likely to have the children removed from their care (Odds Ratio (OR)?=?0.40, 95% CI?=?0.27, 0.61), more likely to complete substance use treatment (OR?=?3.01, 95% CI?=?1.79, 5.06), and more likely to reduce their alcohol consumption (Standardised Mean Difference (SMD)?=??0.40, 95% Cl?=??0.78, ?0.01) and drug use (SMD?=??0.30, 95% CI?=??0.53, ?0.07). However, non-significant reductions were observed for parent–child conflict (SMD?=??0.35, 95% CI?=??0.72, 0.03) and child abuse risk (SMD?=??0.03, 95% CI?=??0.36, 0.31). While the findings from this review suggest that mothers involved in integrated treatment programmes could potentially be less likely to experience out-of-home child placements and more likely to improve substance use treatment outcomes, little evidence exists for the effectiveness of these interventions. Further research, particularly high-quality RCTs, is required to demonstrate and persuade health and public policy on the far-reaching value of the integrated approaches.

     

Effects of telephone support on exercise capacity and quality of life in patients with chronic obstructive pulmonary disease: a meta-analysis

The aim of this meta-analysis was to evaluate the effects of disease education or pulmonary rehabilitation programs assisted with telephone support on physical capacity and quality of life (QOL) in chronic obstructive pulmonary disease (COPD) patients. A systematic search of PubMed, Embase, Web of Science and The Cochrane Library was conducted until May 2017. Randomized controlled trials (RCTs) examining the effects of telephone-assisted intervention versus a control group on exercise tolerance and QOL in patients with COPD were included. Two independent authors assessed the methodological quality of the trials using the Cochrane risk of bias tool. A meta-analysis was conducted with the Revman5.3 to quantify the effects of telephone-assisted interventions on walking capacity and QOL. In total, 10 studies involving 1037 participants were included. Due to the effect of telephone-assisted interventions, statistically significant results were found on Saint-George’s Respiratory Questionnaire (SGRQ) symptom scores [standard mean difference (SMD) ?.18, 95% confidence interval (CI) ?.33, ?.03, p-value .02)], SGRQ impact scores [SMD ?.35, 95% CI ?.60, ?.10, p-value .006)], SGRQ activity scores [SMD ?.30, 95% CI ?.45, ?.15, p-value < .0001)], SGRQ total score [SMD ?.36, 95% CI ?.51, ?.21, p-value < .00001)]. The effects on 6-min walk test (6MWT) and all Chronic Respiratory Questionnaire (CRQ) subscales were not significant (p > .05) based on the insufficient evidence. In conclusion, the role of telephone-assisted interventions in the management of COPD remains equivocal. Some encouraging results were seen with regard to SGRQ symptom, SGRQ impact, SGRQ activity and SGRQ total score. We believe that more methodologically rigorous large-scale randomized controlled trials are necessary to answer this study question.     

Effects of psychological interventions for patients with osteoarthritis: a systematic review and meta-analysis

The aim of this study was to determine the effects of psychological interventions (e.g. cognitive restructuring, relaxation) on physiological and psychological health in osteoarthritis patients. A systematic literature search was done using PubMed, Embase, PsycINFO, Web of Science, China National Knowledge Infrastructure, and Wanfang Database through November 2016. Studies were included if they used a randomized controlled trial designed to explore the effects of psychological interventions in osteoarthritis patients. Two independent authors assessed the methodological quality of the trials using criteria outlined by Jadad et al. Meta-analysis was done with the Revman5.0. Twelve randomized controlled trials, including 1307 osteoarthritis patients, met the study inclusion criteria. Meta-analysis showed that psychological interventions could reduce the levels of pain [standard mean difference (SMD) ?0.28, 95% CI ?0.48, ?0.08, P-value 0.005)] and fatigue (SMD ?0.18, 95% CI ?0.34, ?0.01, P-value 0.04). In addition, psychological interventions significantly improved osteoarthritis patients’ self-efficacy (SMD 0.58, 95% CI 0.40, 0.75, P-value 0.00) and pain coping (MD 1.64, 95% CI 0.03, 3.25, P-value 0.05). Although the effects on physical function, anxiety, depression, psychological disability were in the expected direction, they were not statistically significant. In conclusion, the role of psychological interventions in the management of osteoarthritis remains equivocal. Some encouraging results were seen with regard to pain, pain coping, self-efficacy, and fatigue. We believe that more methodologically rigorous large-scale randomized controlled trials are necessary to answer this study question.     

Effects of Mindfulness-Based Therapy for Cancer Patients: A Systematic Review and Meta-analysis

This meta-analysis was a systematic review of evidence on the effects of mindfulness-based stress reduction (MBSR) and mindfulness-based cognitive therapy (MBCT) on quality of life (QOL), pain, fatigue, anxiety, and depression in cancer patients. Until July 2020, PubMed, Cochrane Library, and Embase were searched for randomized controlled trials (RCTs). The study included 18 RCTs. The MBSR/MBCT intervention resulted in a significant effect on QOL (SMD 0.80, CI 0.28, 1.32, I²?=?94%). In subgroup analysis, MBSR/MBCT interventions had a significant effect in the early cancer stage on anxiety (SMD ? 3.48, CI ? 4.07, ? 2.88), and QOL (SMD 4.30, CI 3.62, 4.99); in alleviating decreasing pain (SMD ? 0.42, CI ? 0.70, ? 0.14) within 4 weeks after the end of intervention, and alleviating fatigue in younger participants (SMD ? 0.64, CI ? 1.09, ? 0.19). MBSR/MBCT has short-term effects on cancer patients, especially in younger patients and early cancer stages.

     

Health behaviour change theory meets falls prevention: Feasibility of a habit-based balance and strength exercise intervention for older adults

ObjectivesHabit formation is a proposed mechanism for behaviour maintenance. Very few falls prevention studies have adopted this as an intervention framework and outcome. Therefore, we tested feasibility of a theory-based behaviour change intervention that encouraged women to embed balance and strength exercises into daily life routines (e.g., eating, self-care routines).DesignThe EASY LiFE study was a mixed-methods, 4-month feasibility intervention that included seven group-based sessions and two telephone calls.Main outcome measuresWe obtained performance-based (i.e., Short-Physical-Performance-Battery) and psychological self-report measures (i.e., intention, self-efficacy, planning, action control, habit strength, quality of life) from 13 women at baseline (T1) and 4-month follow-up (T2). We applied the Framework-Method to post-intervention, semi-structured interviews to evaluate program content and delivery.ResultsIn total, 10 of 13 women completed the program (M_age = 66.23, SD = 3.98) and showed changes in their level of action control [mean difference_T1−T2 = 1.7, 95% CI (−2.2 to −0.8)], action planning [mean difference_T1−T2 = 0.8, 95% CI (−1.1 to −0.2)], automaticity [mean difference_T1−T2 = 2.5, 95% CI (−3.7 to −1.2)], and exercise identity [mean difference_T1−T2 = 2.0, 95% CI (−3.2 to −0.8)]. Based on the Theoretical Domains Framework we identified knowledge, behavioural regulation, and social factors as important themes. For program delivery, dominant themes were engagement, session facilitators and group format.ConclusionThe theory-based framework showed feasibility for promoting lifestyle integrated balance and strength exercise habits. Using activity and object-based cues may be particularly effective in generating action and automaticity.     

The association between adverse childhood experiences and personality,emotions and affect: Does number and type of experiences matter?

BackgroundThere is strong evidence that adverse childhood experiences (ACEs) negatively impact mental health. However, the association between ACEs and personality, emotions and affect are poorly understood. Therefore, we examined the association between composite ACE score and ACE type and personality, emotions and positive and negative affect.MethodsThree waves of data from the Midlife Development in the United States (MIDUS) study were used. ACE was the primary independent correlate. Covariates included demographic variables and survey wave. Outcome variables included generativity, personality traits (agreeableness, conscientiousness, extraversion, neuroticism, openness, agency), and affect (positive, negative). Statistical analyses included 3 approaches: (1) treatment of ACE as dichotomous, (2) ordinal composite of ACE score, and (3) three individual ACE type components to assess the association between ACE and psychological constructs.ResultsOf 6323 adults in the sample, 53% were female, and 56% had a past ACE. In the adjusted analyses, dichotomized ACE was significantly associated with neuroticism (β = 0.10; 95% CI 0.07, 0.13) and conscientiousness (β = −0.03; 95% CI −0.05, −0.01). All ACE scores were significantly and positively associated with neuroticism and negatively associated with conscientiousness. Abuse was significantly associated with neuroticism (β = 0.20; 95% CI 0.16, 0.24), openness (β = 0.08; 95% CI 0.05, 0.11), conscientiousness (β = −0.05; 95% CI −0.08, −0.02), and agency (β = 0.06; 95% CI 0.02, 0.10). All ACE categories, except financial strain, were significantly associated with affect.ConclusionACEs are significantly associated with personality, emotions, and affect, with greater effect seen at higher ACE scores and with ACE abuse type, which helps support the cumulative risk hypothesis and our study hypothesis. There is a need for continued research to understand the mechanistic processes and the directionality of the association between ACEs, emotions, and behaviors to help continue to drive biopsychosocial interventions.     

Neurocognitive Functioning in Depressed Young People: A Systematic Review and Meta-Analysis

Background: Depression is among the most common mental health problems for young people. In adults, depression is associated with neurocognitive deficits that reduce the effectiveness of treatment and impair educational and vocational functioning. Compared to adults, less is known about the neurocognitive functioning of young people with depression, and existing research has reported inconsistent findings. Method: This systematic review and meta-analysis synthesized the literature on neurocognitive functioning in currently depressed youth aged 12–25 years in comparison to healthy controls. Results: Following a systematic review of the literature, 23 studies were included in the meta-analysis. Poorer performance in the domains of attention (SMD: .50, 95% CI: .18–.83, p?=?.002), verbal memory (SMD: .78, 95% CI: .50–1.0, p?<?.001), visual memory (SMD: .65, 95% CI: .30–.99, p?<?.001), verbal reasoning/knowledge (SMD: .46; 95% CI: .14–.79; p?<?0.001) and IQ (SMD: .32; 95% CI: .08–.56; p?=?0.01) were identified in depressed youth. Relative weaknesses in processing speed/reaction time and verbal learning were also evident, however, these findings disappeared when the quality of studies was controlled for. Moderator analysis showed a tendency for poorer set-shifting ability in younger depressed participants relative to controls (although non-significant; p?=?.05). Moderator analysis of medication status showed taking medication was associated with poorer attentional functioning compared to those not taking medication. Conclusion: The findings suggest that currently depressed young people display a range of neurocognitive weaknesses which may impact treatment engagement and outcome. The findings support the need to consider neurocognitive functioning when treating youth with depression.     

Big-Five personality and political orientation: Results from four panel studies with representative German samples

The aim of this brief report was to replicate the meta-analytic findings concerning the relationship between Big-Five personality and political orientation reported in Sibley, Osborne, and Duckitt (2012) in a sample of N = 29,015 participants from four panels involving representative German samples. We replicated the expected significant correlations for Openness to Experience (r = −0.07; 95% CI [−0.10, −0.05]) and Conscientiousness (r = 0.06, 95% CI [0.05, 0.08]), but the effect sizes were smaller than in Sibley et al. (2012). We also found significant correlations for Agreeableness (r = −0.04; 95% CI [−0.05, −0.03]) and Neuroticism (r = −0.04; 95% CI [−0.06, −0.02]), indicating small but significant relations of additional Big-Five dimensions on political orientation.     

Biological and psychological predictors of heart rate patterns during physical activity

ObjectiveLatent class modeling (LCM) offers a promising approach for examining correlates of heart rate (HR) patterns over multiple exercise sessions. This research examined biological and psychological variables associated with different patterns of HR response to physical activity (PA).MethodsIn a three-arm randomized controlled trial (exercise video games vs. standard exercise vs. non-exercise control), HR was recorded during PA sessions over a 12-week period. LCM identified three patterns of HR during PA across 189 participants in active arms: 1) high HR across sessions with low variability within sessions, 2) linear increase in HR across sessions with low variability within sessions, and 3) high variability in HR across all sessions. Associations with biological (resting heart rate, blood pressure, BMI, age, cholesterol, triglycerides, HbA1c) and psychological (depression, motivations for PA, PA-induced feelings) predictors of latent class membership were iteratively tested.ResultsPsychological variables played as important a role in the final model as biological variables for predicting latent class membership. Few differences were found between LC1 and LC2, but LC3 differed from the other two groups in that participants were likelier to report that they feel revitalized after PA (vs. LC1 and LC2), to be less motivated for PA (vs. LC1), reported greater depression (vs. LC1 and LC2), and were younger (vs. LC1).ConclusionsThese findings demonstrate the potential of LCM to identify biological and psychological factors associated with chronotropic responses to PA, and advance understanding of the role of psychological factors in chronotropic PA outcomes.     

Refreshing Older Adults’ Driving Skills (ROADSkills): A randomized controlled trial examining the effect of video feedback

ObjectivesThis study evaluated the effectiveness of a personalized video-based driver training program on the behind-the-wheel skills of community-dwelling older adults.MethodIn this randomized controlled trial (RCT), 80 older drivers [mean age (SD) = 71.0 (3.9)] were randomly assigned to view one of two educational videos: 1) personalized video feedback on their driving (n = 40) or 2) a generic video on aging-in-place (n = 40). The primary outcome, the total number of errors accrued in a 30-minute standardized on-road evaluation, was analyzed at baseline and 4 weeks after watching the assigned video. On-road evaluations were video-recorded and scored by a blinded rater. Self-report measures of driving abilities, behaviors, and comfort were also compared.ResultsAt the 4-week follow-up, the mean difference in the number of on-road performance errors [mean (95% CI) = -12.0 (-16.6, −7.4), p < 0.001] favored the intervention group compared to controls, with significant improvements across multiple domains: vehicle control [mean (95% CI) = -4.8 (-8.1, −1.5), p < 0.01], observing the roadway [mean (95% CI) = -5.5 (-8.4, −2.6), p < 0.001], and compliance with traffic rules [mean (95% CI) = -1.3 (-2.3, −0.2), p < 0.05]. Within-group change on behind-the-wheel errors was significant for the intervention group [mean (95% CI) = -10.3 (-13.5, −7.1), p < 0.001], but not for the control group [mean (95% CI) = 1.7 (-1.6, 4.9), p > 0.05]. No significant differences were found on the self-report measures.DiscussionA novel, video-based approach that provided personalized feedback to older drivers significantly reduced behind-the-wheel errors 4-weeks post-intervention. Changes in self-reported driving behaviors and abilities were not significant. Future research will examine the long-term effects of this approach on older adults’ actual and perceived driving abilities.     

Impact of Well-being Interventions for Siblings of Children and Young People with a Chronic Physical or Mental Health Condition: A Systematic Review and Meta-Analysis

Siblings of children and young people with a chronic illness are at increased risk of poor psychological functioning. A number of studies have attempted to implement and evaluate interventions targeting the psychological well-being of this at-risk group. This systematic review summarises the evidence regarding psychological functioning of siblings following an intervention targeting their well-being. The meta-analysis considered behaviour and knowledge, two of the most frequently studied outcomes. The following databases were used: PsycINFO, EMBASE, CINAHL, PubMed, Scopus and Web of Science. Seventeen studies were eligible to be included in the systematic review and eight in the meta-analysis. Results from the systematic review reflected the inconsistency of intervention evaluations in this area with a high level of heterogeneity and a total of 23 outcomes considered across the 17 included studies. The meta-analysis estimated effect sizes using a standardised mean difference (SMD) approach. Pre-post analysis suggested significant improvement in behavioural outcomes and knowledge of their sibling’s health conditions with a SMD of ? 0.44 [95% CI (? 0.6, ? 0.29); p = 0.000] and 0.69 [(95% CI = 0.42, 0.96); p = 0.000], respectively. The SMD was not significant for behavioural outcomes when considering treatment–control studies. In conclusion, the findings suggest interventions for well-being have a positive effect on the psychological functioning of siblings of children and young people with a chronic illness, but their specificity needs to be established. There is a need for further, more methodologically robust research in this area.     

Can Acceptance,Mindfulness, and Self-Compassion Be Learned by Smartphone Apps? A Systematic and Meta-Analytic Review of Randomized Controlled Trials

The potential health benefits of acceptance, mindfulness, and self-compassion are well-documented. However, interventions that teach these principles typically rely on face-to-face delivery, which can limit their dissemination. Delivering these interventions through smartphone apps could help overcome this. This meta-analysis examined whether principles of acceptance, mindfulness, and self-compassion can be learned through smartphone apps. Twenty-seven randomized controlled trials were included. Smartphone apps that included acceptance and/or mindfulness components resulted in significantly higher levels of acceptance/mindfulness than comparison conditions (k = 33; g = 0.29; 95% CI = 0.17, 0.41). These effects were moderated by the type of comparison and whether reminders to engage were offered. Smartphone apps also resulted in significantly lower levels of psychological distress than comparisons (k = 22; g = −0.32; 95% CI = −0.48, −0.16). Meta-regression revealed a negative relationship between the effect sizes for mindfulness/acceptance and the effect sizes for distress. Smartphone apps produced significantly greater increases in self-compassion than comparisons (k = 9; g = 0.31; 95% CI = 0.07, 0.56), although the quality of RCTs in this analysis was poor. Findings suggest that principles of acceptance, mindfulness, and self-compassion may be learned through cheap, easily accessible, and low-intensity interventions delivered via smartphone apps. However, the quality of available evidence is poor, as low risk of bias was noted in few trials (18%) and the observed effects were likely explained by a digital placebo.     

Effects of psychological interventions on competitive anxiety in sport: A meta-analysis

ObjectivesThis study reviewed the effects of psychological interventions on competitive anxiety in sport.DesignMeta-analysis and systematic review.MethodPsycINFO, PsycARTICLES, SPORTDiscus, Web of Science, ProQuest, and Sage databases were searched for experimental studies that fulfilled the inclusion criteria. Risk of bias was assessed using the 12 criteria Cochrane Review Book Group tool. Hedge's g and 95% confidence intervals (CIs) were calculated and pooled using a random effects model employing the Hartung-Knapp-Sidik-Jonkman (HKSJ) method.ResultsThe search strategy identified 37 studies which fulfilled the inclusion criteria. The meta-analysis was conducted on 34 studies after removal of outliers. The results showed an overall small to medium-sized effect for psychological interventions on competitive anxiety in athletes (g = −0.42; 95% CI, −0.58 to −0.25). Subsequent subgroup analyses showed that this finding was robust regardless of experimental design, anxiety measure, anxiety type, gender, country, sport, intervention component, intervention delivery method, and intervention duration. The results indicated that the effects might be greater for athletes of higher levels of competition as compared to those from lower levels of competition. Separate meta-analyses also suggested that there were medium to large-sized effects for cognitive anxiety (g = −0.54) and self-confidence (g = 0.55) intensity, and a small to medium-sized effect for somatic anxiety (g = −0.36) intensity.ConclusionThe findings from this review study provide a robust evidence base for the use of psychological interventions to help reduce competitive anxiety in athletes. Future studies need to investigate how psychological interventions might affect the directional interpretation of anxiety symptoms.     

Exergame-based exercise training for depressive symptoms in adults: A systematic review and meta-analysis

ObjectiveThe aim of this study was to pool existing data to investigate the overall effectiveness of exergame-based exercise training in improving depressive symptoms in adults.DesignA systematic review and meta-analysis.MethodsTen databases were systematically searched from inception to August 18, 2021, and the search was last updated on November 6, 2021. Standardized mean differences (SMDs) were calculated using random effects models. The Risk of Bias 2 (RoB 2) tool was used to assess the methodological quality of the studies, and GRADEpro software was used to assess confidence in the cumulative evidence. Funnel plots, Egger's test, and Begg's test were used to analyse publication bias. Sensitivity, subgroup and meta-regression analyses were performed to explore potential sources of heterogeneity.ResultsTwenty-one studies were included, and the results showed exergame-based exercise training had a significant effect on depressive symptoms in adults (SMD = −0.69; 95% CI, −1.01 to −0.36; P < 0.001; 19 RCTs, 924 participants; low-quality evidence). The predictive interval was not significant (95% PI, −3.45, 2.07). Subgroup analysis showed that in the intervention with the general adult population, game devices with Kinect and long-term interventions appeared to be more effective. Sensitivity analysis found the results to be robust.ConclusionExergame-based exercise training has the potential to reduce depressive symptoms. Additionally, different populations, devices and durations of intervention could influence the effect. In the future, high-quality studies with large samples, multiple centres and long follow-up durations should be performed to further explore the efficacy of exergame-based exercise training.     

Internet-Based and Other Computerized Psychological Treatments for Adult Depression: A Meta-Analysis

Computerized and, more recently, Internet-based treatments for depression have been developed and tested in controlled trials. The aim of this meta-analysis was to summarize the effects of these treatments and investigate characteristics of studies that may be related to the effects. In particular, the authors were interested in the role of personal support when completing a computerized treatment. Following a literature search and coding, the authors included 12 studies, with a total of 2446 participants. Ten of the 12 studies were delivered via the Internet. The mean effect size of the 15 comparisons between Internet-based and other computerized psychological treatments vs. control groups at posttest was d = 0.41 (95% confidence interval [CI]: 0.29–0.54). However, this estimate was moderated by a significant difference between supported (d = 0.61; 95% CI: 0.45–0.77) and unsupported (d = 0.25; 95% CI: 0.14–0.35) treatments. The authors conclude that although more studies are needed, Internet and other computerized treatments hold promise as potentially evidence-based treatments of depression.     

A longitudinal study on depressive symptoms and physical activity during the Spanish lockdown

Background/Objective: The aim was to evaluate the evolution of depressive symptoms and to explore the influence of physical activity (PA) practice during the home confinement due to the COVID-19 outbreak in Spain. Method: Information was collected from 595 confined participants who reported personal and contextual information, depressive symptoms and PA levels at four time points. Results: The changes in depressive symptoms were analyzed using a linear mixed model with cubic splines. Results showed a significant increase, with a significant rise between T1 and T2 (OR = 2.38, 95% CI = 1.83-3.10). It continued growing until T4 (OR = 2.93, 95% CI = 1.97-4.38). A negative relationship was observed between the increase in depressive symptoms and moderate-to-vigorous physical activity (MVPA) levels, with a significant slope up to 4 hours of MVPA per week (OR = 0.51, 95% CI = 0.29-0.90) that tended to increase until 16 hours per week of MVPA (OR = 0.41, 95% CI = 0.20-0.87). Conclusions: Results from a partition model showed that moderate intensity of PA could be enough to prevent an increase of depressive symptoms during home isolation.     

The adoption of physical activity and eating behaviors among persons with obesity and in the general population: the role of implicit attitudes within the Theory of Planned Behavior

Obesity can be prevented by the combined adoption of a regular physical activity (PA) and healthy eating behaviors (EB). Researchers mainly focused on socio-cognitive models, such as the Theory of Planned Behavior (TPB), to identify the psychological antecedents of these behaviors. However, few studies were interested in testing the potential contribution of automatic processes in the prediction of PA and EB. Thus, the main objective of this study was to explore the specific role of implicit attitudes in the pattern of prediction of self-reported PA and EB in the TPB framework, among persons with obesity and in adults from the general population. One hundred and fifty-three adults participated to this cross-sectional study among which 59 obese persons (74% women, age: 50.6 ± 12.3 years, BMI: 36.8 ± 4.03 kg m^–²) and 94 people from the general population (51% women; age: 34.7 ± 8.9 years). Implicit attitudes toward PA and EB were estimated through two Implicit Association Tests. TPB variables, PA and EB were assessed by questionnaire. Regarding to the prediction of PA, a significant contribution of implicit attitudes emerged in obese people, β = .25; 95%[CI: .01, .50]; P = .044, beyond the TPB variables, contrary to participants from the general population. The present study suggests that implicit attitudes play a specific role among persons with obesity regarding PA. Other studies are needed to examine which kind of psychological processes are specifically associated with PA and EB among obese people.     

Self-determination theory based instructional interventions and motivational regulations in organized physical activity: A systematic review and multivariate meta-analysis

This study aimed to provide a quantitative synthesis of the effect of Self-determination theory (SDT) based instructional interventions on the motivational regulations of participants in organized physical activity. We conducted a systematic review and meta-analysis on experimental studies conducted before December 2021. The search using the online databases PsychINFO, PsychARTICLES, ERIC, SportDISCUS, and ProQuest Dissertations and Theses, and Google Scholar and other supplementary search strategies yielded 7774 articles, with 38 articles (142 effects and 12,457 participants) meeting the inclusion criteria. The articles were analyzed using a meta-analytic multivariate model. The study showed that SDT-based instruction had a positive heterogeneous small effect on intrinsic motivation (g = 0.29; CI 95% [0.17, 0.41]) and identified regulation (g = 0.23; CI 95% [0.10, 0.35]) and a negative heterogeneous, small effect on external regulation (g = −0.16; CI 95% [-0.31, −0.00]) and amotivation (g = −0.14; CI 95% [-0.28, −0.01]). SDT-based instruction did not have an effect on integrated regulation (g = 0.08; CI 95% [-0.11, 0.28]) nor introjected regulation (g = 0.03; CI 95% [-0.7, 0.13]). Univariate categorical moderator analyses highlighted multiple variables that impacted the size of the effects on the outcomes, including type of intervention and control group, length of study, age of participants, and study quality. Findings from the moderator analyses challenge the practical implications of SDT-based instructional interventions in improving motivation in organized physical activity. High-quality experimental trials using careful and precise conceptualizations of need-supportive behaviors and strategies would benefit the discipline.