Positive affect moderates inhibitory control and positive affect following a single bout of self-select aerobic exercise

PurposeResearch suggests that individual differences in baseline cognitive performance moderates subsequent cognitive benefits following a single bout of exercise. The present study seeks to evaluate additional moderating mental states – specifically positive affect – on inhibitory control and affect following exercise.MethodsUsing a within- and between-participants pre-post cross-over design, eighty university students (54 females; 21.7 ± 2.7 years old) completed a flanker task and affect measures before and after a single bout of aerobic exercise at a self-selected intensity or studying for class (15-min) on separate days. Groups of high-positive affect (HPA; n = 41) and low-positive affect (LPA; n = 39) were determined based on a median split of positive affect measures prior to the exercise bout.ResultsThe HPA group revealed shorter reaction time (RT) from before to after exercise and rest with no difference observed between exercise and rest. The LPA group revealed shorter RT after exercise compared to before exercise and after rest. For accuracy, the LPA group improved performance during the exercise session compared to the rest session to a level comparable to the HPA group. Lastly, positive affect decreased in the LPA and HPA groups from before to after rest; however, only the LPA group’s positive affect increased from before to after exercise.ConclusionIndividuals with low positive affect experience greater cognitive and positive affect improvements following acute aerobic exercise at a self-select intensity, further supporting intraindividual differences in mental states as a mechanism for subsequent cognitive and affective benefits encompassing healthy behaviors of exercise.     

Acute exercise and children’s cognitive functioning: What is the optimal dose of cognitive challenge?

Acute bouts of exercise have the potential to benefit children’s cognition. Inconsistent evidence on the role of qualitative exercise task characteristics calls for further investigation of the cognitive challenge level in exercise. Thus, the study aim was to investigate which “dose” of cognitive challenge in acute exercise benefits children’s cognition, also exploring the moderating role of individual characteristics. In a within-subject experimental design, 103 children (M_age = 11.1, SD = 0.9, 48% female) participated weekly in one of three 15-min exergames followed by an Attention Network task. Exergame sessions were designed to keep physical intensity constant (65% HR_max) and to have different cognitive challenge levels (low, mid, high; adapted to the ongoing individual performance). ANOVAs performed on variables that reflect the individual functioning of attention networks revealed a significant effect of cognitive challenge on executive control efficiency (reaction time performances; p = .014, ƞ²_p = .08), with better performances after the high-challenge condition compared to lower ones (ps < .015), whereas alerting and orienting were unaffected by cognitive challenge (ps > .05). ANOVAs performed on variables that reflect the interactive functioning of attention networks revealed that biological sex moderated cognitive challenge effects. For males only, the cognitive challenge level influenced the interactive functioning of executive control and orienting networks (p = .004; ƞ²_p = .07). Results suggest that an individualized and adaptive cognitively high-challenging bout of exercise is more beneficial to children’s executive control than less challenging ones. For males, the cognitive challenge in an acute bout seems beneficial to maintain executive control efficiency also when spatial attention resources cannot be validly allocated in advance. Results are interpreted referring to the cognitive stimulation hypothesis and arousal theory.     

Comparing the efficacy (RCT) of learning a dance choreography and practicing creative dance on improving executive functions and motor competence in 6–7 years old children

ObjectivesThis study examined the effect of two different dance curriculums on executive functions and motor competence in 6–7 years old primary-school children across an 8-week period. One dance curriculum was underscored by creativity and the other was based on a choreographed dancing curriculum with high cognitive challenge.DesignRandomised-controlled trial.MethodsSixty-two primary-school children (6.6 ± 0.5 years old; 47% females) participated for a control period in the regular school PE lessons, after which they were randomly assigned to two experimental groups – choreography dance group or creative dance group. The two experimental groups practiced dance for 8 weeks, twice a week, learning either a choreographed dance sequence with high cognitive challenge or creating their own dance sequence in a creative dance curriculum. Executive functions (working memory capacity, inhibition, and flexibility) and motor competence were assessed at three time points – baseline, pre-intervention and post-intervention.ResultsThere was a time effect for inhibitory control (p < 0.01), with a high improvement during the intervention (d = 0.76) than baseline (d = 0.46); for working memory capacity (p < 0.01), with a higher improvement during intervention (d = 0.43) than baseline (d = 0.31) in the high challenging task; and for motor competence (p < 0.01), with a higher improvement during baseline (d = 1.7) than intervention (d = 0.75); no other significant effects. Group differences revealed weak evidence that the choreography group improved inhibitory control and working memory more than the creative dance group. However, a check for pedagogy fidelity revealed that the creative-dance curriculum was not adopted as planned (i.e., high volume of teacher's instruction and small use of music).ConclusionsAn 8-week dance intervention improved inhibitory control and potentially working memory capacity in grade one and two primary-school children. Contrary to prediction, the dance intervention did not improve motor competence beyond typical development. Discrepancy between the planned and adopted creative-dance curriculum suggests caution in interpreting results. This study provides new insights into the exercise-cognition relationship.     

Effects of an acute bout of localized resistance exercise on cognitive performance in middle-aged adults: A randomized controlled trial study

ObjectivesTo examine the effect of an acute bout of resistance exercise on cognitive performance in healthy middle-aged adults.DesignA randomized controlled trial design.MethodsForty-one adults (M_age = 49.10 years, SD = 8.73) were randomly assigned to either resistance exercise or a control condition. The resistance exercise condition consisted of 2 sets of 10 repetitions for 6 exercises, and the control condition involved reading about resistance exercise for a time period approximating the duration of the exercise condition. The Stroop Test and the Trail Making Test (TMT) were completed at baseline and immediately following performance of the treatment.ResultsResults indicated that resistance exercise significantly benefits speed of processing (Stroop Word and Stroop Color), and that there is a trend towards resistance exercise benefiting performance on an executive function task (Stroop Color–Word) that requires shifting of the habitual response. However, the results for the TMT were not significant which demonstrates that acute resistance exercise has a limited effect on inhibition.ConclusionThe present findings extend the literature by indicating that an acute bout of resistance exercise has a positive impact on automatic cognitive processes and on particular types of executive function in middle-aged adults.     

Acute exercise effects on worry,state anxiety,and feelings of energy and fatigue among young women with probable Generalized Anxiety Disorder: A pilot study

BackgroundLittle is known about the acute effects of exercise among individuals with clinical or subclinical Generalized Anxiety Disorder (GAD).PurposeThus, this study examined worry, state anxiety, and feelings of energy and fatigue responses to acute aerobic exercise and quiet rest, and explored potential moderators of response among young adult women with worry scores indicative of GAD.MethodsSeventeen young women with Penn State Worry Questionnaire scores ≥45 (60 ± 8) completed 30-min treadmill running at 65%–85% heart rate reserve (%HRR) and 30-min seated quiet rest in counterbalanced order. Outcomes included worry, state anxiety, and feelings of energy and fatigue. Two condition X two time repeated measures ANOVA examined differences across condition and time. Hedges’ d effect sizes (95%CI) were calculated to quantify and compare the magnitude of change. Independent-samples t-tests explored potential moderators of outcome response.ResultsTotal exercise time was 35.8 ± 3.4min with a mean 30.3 ± 0.16 in-zone minutes (65%-85%HRR); participants exercised at ∼72.9 ± 0.03 %HRR (range 66%–79%). Compared with quiet rest, acute exercise significantly improved worry engagement, state anxiety, and feelings of energy and fatigue (all p ≤ 0.031). Moderate-to-large (d = 0.44 to 1.69) reductions in state anxiety and feelings of fatigue and improvements in feelings of energy were found. Exercise-induced reductions in worry engagement were significantly larger among non-high trait anxious participants. Compared to normal sleepers, quiet rest significantly increased feelings of fatigue among poor sleepers.ConclusionFindings provide support for the positive effects of acute aerobic exercise on worry, state anxiety, and feelings of energy and fatigue among young women with worry indicative of GAD.     

Effects of Movement Improvisation and Aerobic Dancing on Motor Creativity and Divergent Thinking

Creativity is considered to be an embodied concept, where internal psychological and external behavioral processes are intertwined. Creativity enhancement programs often target the cognitive side of this bi‐dimensionality leaving the impact of motor interventions underexplored. To address this gap in the literature, we tested the effectiveness of two motor programs on motor creativity and divergent thinking (verbal and figural). A total of 92 college students (M_age = 25.36, SD = 2.66) were randomly allocated to a movement improvisation, an aerobic dance, or a control condition. Participants in both motor programs took part in ten 30‐minute classes twice a week over a period of 5 weeks. The findings revealed a significant effect of the motor programs on motor fluency and flexibility. Movement improvisation yielded the greatest effects on those variables, followed by aerobic dancing and control condition. Movement improvisation also impacted significantly more figural originality than the control condition. However, the effects were limited to the motor domain and failed to transfer into other divergent thinking variables. The findings highlighted the contribution of movement programs to creative potential development, and the imperative role of a non‐judgmental environment, where individuals are free to move spontaneously.     

Aerobic Exercise Enhances Cognitive Flexibility

Introduction Physical activity is believed to prevent cognitive decline and may enhance frontal lobe activity. Methods Subjects were 91 healthy adults enrolled in a wellness center. Over a 10 week intervention, controls were aerobically active 0–2 days per week. Half the intervention group was active 3–4 days/week and half 5–7 days/week. Outcome measures included memory, mental speed, reaction time, attention, and cognitive flexibility. Results Neurocognitive data were analyzed by repeated measures comparing minimal aerobic exercise (the control group) to moderate aerobic exercise (3–4 days/week), and to high aerobic exercise (5–7 days/week). Initial analyses noted significant improvements in mental speed (p = .03), attention (p = .047), and cognitive flexibility (p = .002). After controlling for age, gender, education, and changes in psychomotor speed, only cognitive flexibility still showed significant improvements (p = .02). Conclusion Over a 10 week period, increasing frequency of aerobic activity was shown to be associated with enhanced cognitive performance, in particular cognitive flexibility, a measure of executive function.     

Affective responses to 10-minute and 30-minute walks in sedentary,overweight women: Relationships with theory-based correlates of walking for exercise

ObjectivesThe purpose of this study was to examine affective responses to 10-min and 30-min walks among sedentary, overweight women. Secondary purposes were to: a) examine differences in theory-based correlates of future participation in walking for exercise; and b) determine if the affective responses were related to these correlates.Design/MethodsTwenty-three sedentary, overweight women (M age = 26.62 years; BMI = 33.53 kg/m²) completed 10-min walk, 30-min walk, and quiet rest (QR) control conditions. Affective responses were assessed prior to, during, and following each condition. Self-efficacy and intention for regular participation in multiple 10-min walks or single 30-min walks for exercise during the next month were also assessed post-exercise.Results/ConclusionsAnalyses revealed that improvements in affective responses (p < 0.05) emerged during and following both walking sessions while no benefits were observed with QR. Self-efficacy (p < 0.01) and intention (p < 0.01) to walk for exercise in the future were significantly higher for multiple 10-min walks. Correlation analyses demonstrated that affective responses were most strongly and consistently correlated with intention and self-efficacy for future participation following the 10-min walk. These findings demonstrate that, while both walks resulted in similar affective benefits, sedentary, overweight women reported greater intention and self-efficacy to participate in multiple brief walks for exercise in the future.     

More efficient,perhaps, but at what price? Pleasure and enjoyment responses to high-intensity interval exercise in low-active women with obesity

ObjectivesFewer than 1.5% of women with obesity in the USA are physically active at recommended levels. High-intensity interval exercise (HIIE) has been proposed as a possible solution to the problem of low activity, based on the dual promise of accelerating the accrual of benefits while reducing the time commitment. However, concerns have been raised about the appeal and sustainability of HIIE. The purpose of this study was to compare during-exercise affective valence and post-exercise enjoyment in response to a bout of HIIE and a longer, isocaloric bout of moderate-intensity continuous exercise (MICE).DesignWithin-subjects experiment.MethodsLow-active women with obesity (N = 24) completed one bout of HIIE (3-min warm-up, four 3-min intervals of recumbent cycling at 115% of Watts at the ventilatory threshold, four 2-min periods of active recovery at 85% of Watts at the ventilatory threshold, 5-min cool-down) and one bout of MICE (3-min warm-up, 25 min of recumbent cycling at 90% of Watts at the ventilatory threshold, 5-min cool-down) in counterbalanced order. The Feeling Scale (FS) was administered during exercise and the Physical Activity Enjoyment Scale (PACES) was administered after cool-down.ResultsDifferences were found for both FS (condition by time interaction: p < 0.001, η² = 0.27) and PACES (p = 0.04, d = −0.38), with both outcomes favoring MICE.ConclusionsThe lower pleasure and enjoyment associated with HIIE compared to MICE underscore the importance of considering not only physiological adaptations but also the appeal and sustainability of HIIE for low-active women with obesity.     

Efficacy of a 7-week dance (RCT) PE curriculum with different teaching pedagogies and levels of cognitive challenge to improve working memory capacity and motor competence in 8–10 years old children

ObjectivesThis study examined how learning a dance choreography with different teaching pedagogies and different cognitive challenge influenced the development of working memory capacity and motor competence in primary school children.DesignRandomised-controlled trial.MethodsEighty primary school children (8.8 ± 0.7 years old; 61% females) were recruited and randomly assigned to two experimental groups – a high-cognitive and a low-cognitive group – and a control group. The two experimental groups practiced dance for 7 weeks, twice a week, learning a choreography, while the control group participated in the school standard PE curriculum. In the high-cognitive group, the dance teachers limited visual demonstrations and encouraged children to memorise and recall movement sequences to increase the cognitive challenge.ResultsWhile the pre-to post-test improvements did not statistically differ between experimental groups, the analysis showed that the high-cognitive group statistically improved their working memory capacity (p < 0.01; d = 0.51), while the low-cognitive (p = 0.04; d = 0.48) and control groups did not (p = 0.32; d = 0.17). All three groups improved their motor competence from pre-to post-test, and there was a significant group*time effect (p < 0.01, η_p² = 0.13) with the high-cognitive group showing larger improvement than the control.ConclusionsThe results of this study provide initial support that dance practice coupled with a high cognitive challenge could improve working memory capacity and motor competence in children; however, the difference between groups was not statistically significant, and future research is necessary to examine the generalization of this finding.     

Mental fatigue,anticipated effort,and subjective valuations of exercising predict choice to exercise or not: A mixed-methods study

ObjectivesThis study examined the effects of mental fatigue on people's decisions to engage in an acute bout of exercise quantitatively, through a sequentially mediated pathway consisting of perceived effort and benefit vs. cost valuations and qualitatively, using exit interviews to survey the conscious reasoning behind participants' choices.DesignMixed methods, randomized, experimenter blind to group.MethodParticipants (N = 84, M_age = 19.07 ± 1.86 years) completed either a high cognitive demand (incongruent Stroop) task or low cognitive demand (documentary viewing) task for 12 min. Before and after the cognitive task, participants rated their anticipated effort and subjective evaluations (benefits and costs) of engaging in a 20-min moderate-to-vigorous intensity exercise task. After completing the latter ratings, participants chose between the exercise task or a non-exercise task (seated “free time” and use of smartphone or computer). Participants were led to believe they would actually engage in the task; however, once their choice was made, they were not required to complete the task but were invited to complete a semi-structured interview to probe the reasoning behind their choice.ResultsSerial mediation analyses revealed a significant indirect effect from mental fatigue to choice through perceived effort and benefit vs. cost valuations (95% C.I. = −0.01 to −0.0004). Qualitative data, organized by categories based on group/choice pairings, yielded twelve unique codes explaining how the cognitive tasks affected choice.ConclusionsResults demonstrate mental fatigue alters decision-making through a sequentially mediated process including subjective perceptions of effort, benefits, and costs. Interview responses also highlight the individual-level consequences of completing cognitively demanding and non-demanding tasks on effort-based decision-making. Future research should explore additional feeling states as they relate to people's choices to engage in exercise or sedentary behaviors.     

Development and initial validity of the Exercise-Related Cognitive Errors Questionnaire

ObjectiveCognitive errors (CEs) reflect individuals' biased evaluations of context-relevant information. In the exercise domain, a valid form of exercise CE assessment is needed. The Exercise-related Cognitive Errors Questionnaire (E-CEQ) was developed to determine to what extent adults make cognitive errors regarding exercise decisions. The purpose of this study was to develop and provide initial validity evidence for the E-CEQ.DesignThe current study used an online self-report survey.MethodFirst, 24 initial vignettes representing 6 CEs were created and content validated. Second, data from 364 adults (M_age = 29.1, SD_age = 11.6; 81.3% female) was gathered to examine the E-CEQ's factor structure. Finally, data from the 364 participants was used to examine aspects of criterion-related validity.ResultsA 16-item, three-factor model was retained as the final E-CEQ factor structure and had good psychometric properties (χ² = 164.35, df = 75, p < .001; RMSEA = .057; CFI = .947; TLI = .915). Evidence of the questionnaire's predictive utility is provided. For example, exercise CEs were negatively related to exercise and accounted for 4.9% of additional variance beyond the contribution of past exercise in predicting exercise intention.ConclusionsThe steps taken to examine different forms of validity helped provide a platform from which to continue (a) to study biases linked to cognitive errors and (b) the E-CEQ validation process through ongoing investigation.     

Executive function during and after acute moderate aerobic exercise in adolescents

ObjectivesIn two experiments, we investigated the effects of acute moderate-intensity exercise on aspects of executive function in adolescents.DesignAn experimental design was used.MethodsFifty-five Japanese adolescents (Experiment 1: N = 28; Experiment 2: N = 27) performed a modified flanker task and a modified n-back task to assess inhibitory control and working memory before, during, and after walking on a treadmill at moderate intensity (Experiment 1: 60% maximal heart rate; Experiment 2: 70% maximal heart rate). In a separate session, the same testing sequence was administered while participants sat in a chair.ResultThe results revealed that reaction time for working memory increased during exercise in both experiments, while response accuracy decreased during exercise only at 70% maximal heart rate. Moderate intensity exercise had no substantial effect on inhibition control. Following cessation of the exercise, no effects were observed for either executive function assessment.ConclusionThese results indicate that moderate intensity exercise selectively affects executive function in adolescents. Further, during physical activity, adolescents maintain inhibitory control, but their working memory declines. Further research is required to reveal the mechanisms underlying this phenomenon and to expand beyond the laboratory setting to the areas of sports and physical activities of daily living.     

“I deserve a treat”: Exercise motivation as a predictor of post-exercise dietary licensing beliefs and implicit associations toward unhealthy snacks

ObjectiveTo explore whether exercise motivation predicted two of the potential mechanisms that may explain why individuals engage in unhealthy compensatory snack consumption following exercise; specifically (a) post-exercise conscious licensing beliefs, and (b) post-exercise implicit attitudes toward unhealthy snacks.DesignObservational study.MethodOne hundred and nineteen healthy participants completed a 40-min session of moderate intensity stationary cycling, and subsequently completed measures of explicit licensing and implicit associations toward unhealthy snack foods and drinks.ResultsIndividuals driven by more controlled (relative to autonomous) forms of exercise motivation reported greater compensatory licensing beliefs (Est = −0.08, p < 0.001) even after accounting for a number of relevant covariates. No significant relationship emerged between exercise motivation and implicit associations toward unhealthy snacks (Est = 0.12, p = 0.81).ConclusionThe findings demonstrate that exercise motivation may predict conscious licensing beliefs toward unhealthy snack foods and drinks post-exercise. Understanding the modifiable factors – such as exercise motivation – that predict post-exercise dietary beliefs is important for supporting individuals’ weight loss and health goals.     

Protective effect of aerobic fitness on the detrimental influence of exhaustive exercise on information processing capacity

Although aerobic fitness has been thought to protect against the detrimental cognitive effects following exhaustive exercise, available evidence from studies using traditional mean behavioral measures remain somewhat equivocal.PurposeThis study aimed to reconcile this discrepancy by using a novel theory-driven diagnostic tool, the Systems Factorial Technology (SFT).MethodsSixty-six healthy young adults aged from 18 to 30 years old with different levels of aerobic fitness (n = 33 for the higher-fit and lower-fit groups) completed a go/nogo version of redundant-target task before and after a graded exercise test (GXT) until exhaustion. SFT was used to calculate the resilience capacity, which reflects the information processing capacity underlying inhibitory control.ResultsFollowing the GXT, both higher-fit and lower-fit groups showed faster responses while leaving accuracy unchanged as compared to the performance at the pretest. On the other hand, the resilience capacity decreased for the lower-fit group but was maintained for the higher-fit group.ConclusionThe present findings suggest that aerobic fitness may modulate the individual difference in decisional mechanism following exhaustive exercise. In sum, this study offers an alternative mechanistic explanation regarding cognitive individual differences in response to exhaustive exercise and provides novel insights into the significance of maintaining a state of high physical fitness for those who need to perform cognitively challenging tasks under physically stressful conditions (e.g., elite athletes).     

Effect of acute aerobic exercise on cognitive performance: Role of cardiovascular fitness

ObjectivesTo determine whether fitness and cognitive task type moderate the relationship between acute exercise and cognition.MethodsThirty-six healthy college-aged adults completed a maximal graded exercise test and were categorized as low, moderate, or high in cardiovascular fitness. Participants then performed the Stroop Test prior to and after an acute bout of cycling exercise that consisted of a 5-min warm-up, 20 min of exercise at moderate intensity (65% VO_2max), and a 5-min cool-down.ResultsIndividuals of all fitness levels improved in cognitive performance following exercise. With regards to fitness, while no differences were observed on the congruent condition as a function of fitness, high fit individuals showed the longest response time on the Stroop incongruent condition.ConclusionThe beneficial relationship between performance of an acute bout of exercise and cognitive performance were observed for both cognitive task types and for participants of all fitness levels. However, a curvilinear relationship was observed between fitness and cognitive task type performance such that participants who were moderately fit performed the best on the incongruent trials, implying that maintaining fitness at a moderate level is associated with better executive function.     

The relationship between aging expectations and various modes of physical activity among aging adults

ObjectivePrevious research has indicated that older adults who expect decline and disease with age are less likely to engage in aerobic exercise. This study explores the influence that different types of aging expectations have on various modes of physical activity (PA) among aging adults.Design & methodsCommunity-dwelling adults aged 41–97 years (M = 70.8, SD = 12.8, n = 247) completed a questionnaire including the Physical Activity Scale for the Elderly, the Expectations Regarding Aging (ERA) Survey, and a number of demographic, socio-economic, and medical covariates.ResultsBivariate analyses revealed significant relationships between overall ERA scores and multiple modes of PA, but not at multivariate levels. Bivariate analyses of the ERA sub-scales revealed significant associations among PA and the physical health ERA sub-scale but not mental health or cognitive function ERA sub-scales. In the multivariate analyses, higher physical health ERA was correlated with strenuous sport and recreational physical activities after adjusting for all covariates among aging adults without restrictions of daily activity (OR = 1.01, CI = 1.00–1.02, n = 194).ConclusionsThe association between aging expectations and PA appears to be dependent on the type of aging expectation (i.e., physical health), the mode or intensity of PA, and the functional abilities of the aging adult.     

Moderate intensity exercise facilitates working memory

ObjectivesAlthough the effect of exercise on cognitive functioning has received considerable empirical and theoretical attention, the influence of concurrent exercise on complex cognitive function remains poorly understood. Our research was designed to investigate working memory during a bout of dynamic exercise.DesignAn experimental design was used.MethodsIn two experiments, we examined the impact of moderate intensity exercise on performance of a paced auditory serial addition task (Experiment 1, N = 24) and a Sternberg task (Experiment 2, N = 120). The tasks were performed at rest and while cycling at different power outputs.ResultsWe found that moderate intensity exercise increased the number of correct responses at medium-to-fast stimulus presentation rates during the paced auditory serial addition task and lowered the response latency slopes during the Sternberg task.ConclusionsOur findings show that working memory is improved by dynamic exercise at moderate intensities and short duration.     

Modeling relationships between physical fitness,executive functioning,and academic achievement in primary school children

ObjectivesThe relationship between physical fitness and academic achievement in children has received much attention, however, whether executive functioning plays a mediating role in this relationship is unclear. The aim of this study therefore was to investigate the relationships between physical fitness, executive functioning, and academic achievement, more specifically to test whether the relationship between physical fitness and academic achievement is direct or indirect, via executive functioning.DesignCross-sectional.MethodThis study examined 263 children (145 boys, 118 girls), aged 7–12 years, who performed tests on physical fitness, executive functioning, and academic achievement.ResultsIn a structural equation model linking physical fitness to executive functioning and academic achievement there was a significant relationship between physical fitness and executive functioning (r = .43, R² = .19) and academic achievement (r = .33, R² = .11). Adding a relationship from executive functioning to academic achievement resulted in a non-significant direct link between physical fitness and academic achievement (r = −.08, R² = .006). However, a significant indirect relation through executive functioning persisted. The indirect relation between fitness and academic achievement (r = .41), was stronger than both the direct and total relation (r = .33).ConclusionExecutive functioning thus served as a mediator in the relation between physical fitness and academic achievement. This highlights the importance of including executive functioning when studying the relationship between physical fitness and academic achievement in children.     

Exercise training and health-related quality of life in generalized anxiety disorder

ObjectiveTo quantify the effects of six-weeks of resistance (RET) and aerobic exercise training (AET) on quality of life (QoL) among sedentary women with Generalized Anxiety Disorder (GAD).DesignData from our published randomized controlled trial of the effects of six-weeks of either RET or AET among GAD patients were analyzed.MethodThirty women with GAD were randomized to either six weeks of twice-weekly lower-body weightlifting or cycling, or wait-list control (WL). SF-36 subscales assessed dimensions of QoL. Hedges’ d effect sizes (95%CIs) quantified the magnitude of change in response to exercise training compared to WL.ResultsRET significantly improved role-physical (d = 1.04; 95%CI: [0.11–1.97]), role-emotional (d = 0.96; [0.04–1.89]), and mental health (d = 1.05; [0.11–1.98]). AET resulted in significant improvements in physical function (d = 1.31; [0.34–2.27]) and vitality (d = 0.93; [0.01–1.85]).ConclusionsExercise training improves dimensions of QoL among GAD patients. The largest effects were observed for role impairments, physical function, vitality, and mental health.