A 10-week yoga practice has no effect on cognition, but improves balance and motor learning by attenuating brain-derived neurotrophic factor levels in older adults

Beyond lifestyle, logic and empathy: subjective health, mood, emotional intelligence, and personality as keys to well-being for women and men

In a study involving 831 women and 309 men aged 18 to 64, we sought to explore the key determinants influencing various components of well-being, including happiness, life satisfaction, and vigor/vitality. The determinants examined encompassed sociodemographic variables, health indicators, sedentary behaviors, physical activity, body mass index (BMI), sleep patterns, eating habits, alcohol consumption, smoking, mood indicators, personality traits, emotional intelligence, logical thinking, non-utilitarian decision-making, and adverse childhood experiences. Our findings indicate that happiness, life satisfaction, and vigor are most significantly affected by mood indicators-especially depression-emotional intelligence (particularly the ability to manage emotions), and overall subjective health. Additionally, specific personality traits, such as extraversion in women and neuroticism in men, played a significant role in influencing well-being. Conversely, determinants such as BMI, sleep habits, regular physical activity, sedentary behavior, dietary habits, avoiding smoking and excessive alcohol consumption, as well as logical thinking, non-utilitarian decision-making, and adverse childhood experiences, showed limited or no significant impact on well-being components like happiness, life satisfaction, and vigor. These findings provide valuable insights into the complex dynamics of human well-being, highlighting the distinct determinants of happiness, life satisfaction, and vigor/vitality for men and women.

Effects of different exercise types on balance function in healthy older adults and Parkinson's patients: a systematic review

Objective

This study aims to compare the effects of Tai Chi, yoga, and resistance training on balance function in healthy elderly individuals and patients with Parkinson's disease (PD). Given the well-documented benefits of these three exercise types in enhancing balance and motor function, it is crucial to assess their differential impacts.

Methods

A comprehensive search was conducted across PubMed, Web of Science, Scopus, and Cochrane Library databases through December 2023. Articles were selected based on predefined criteria, screened, and evaluated by two independent researchers who also extracted study characteristics. The risk of bias was assessed using the Cochrane risk of bias tool. The primary outcome measures were the Berg Balance Scale and the Timed Up and Go test, while the secondary measure was the Unified Parkinson's Disease Rating Scale Part III. A random effects model was employed, and heterogeneity was measured using the I 2 statistic.

Results

Of the 21 studies reviewed, 9 focused on healthy older adults and 12 targeted individuals with PD. The meta-analysis showed that Tai Chi, yoga, and resistance training significantly improved balance in patients with PD compared to control groups (p < 0.00001). Resistance training was most effective in enhancing dynamic balance in healthy older adults (p = 0.003), while Tai Chi had the most significant impact on balance improvement in PD patients (p < 0.00001). Notably, interventions conducted three to four times per week, each lasting 50-60 min and continued over 12 weeks, yielded the most substantial balance improvements.

Conclusion

Comparative analyses demonstrate that Tai Chi, yoga, and resistance training significantly enhance balance and motor function. Specifically, resistance training markedly improves dynamic balance in healthy elderly individuals, while Tai Chi shows pronounced improvements in motor function and balance for PD patients. Optimal balance improvements are achieved by performing interventions three to four times per week, with each session lasting 50-60 min, over 12 weeks.

Systematic review registration

https://inplasy.com/, identifier INPLASY202470042.

Factors influencing students' happiness, vitality, and self-esteem

Introduction

The happiness and well-being of individuals are among the most important components of life. However, there remains a lack of evidence regarding the relationships between students' happiness, vigor, and self-esteem on the one hand and various complex factors on the other hand.

Methods

We conducted a cross-sectional study involving 397 students from various Lithuanian universities. We determined students' happiness, self-esteem, vigor, healthy lifestyles, perceived stress, personality traits, academic achievements and motivation by using validated scales.

Results and discussion

The study indicates that while happiness and self-esteem are not linked to healthy lifestyles, vigor is positively associated with moderate-to-vigorous physical activity (MVPA) and healthy eating, and negatively with body mass index (BMI). Happiness and vigor inversely relate to stress, and happiness and self-esteem inversely relate to depression. Vigor is positively related to extraversion, and self-esteem to neuroticism. Happiness, vigor, and self-esteem are not linked to academic achievements, but happiness relates to non-utilitarian decisions, and self-esteem to emotional intelligence and non-utilitarian decisions. Happiness, vigor, self-esteem were not linked to intrinsic motivation to study, but self-esteem was inversely related to amotivation and childhood violence. This study fills the research gap and deepens the understanding of what determines students' happiness and vigor, and self-esteem.

Effects of aerobic exercise on executive function of healthy middle-aged and older adults: A systematic review and meta-analysis

BACKGROUND

The deterioration of executive function is a hallmark of cognitive aging. Reports indicate that signs of decline in executive function begin to emerge as early as middle age. Aerobic exercise improves executive function in healthy middle-aged and older adults, but the optimal exercise prescription variables are still unclear.

OBJECTIVE

To investigate the effects of aerobic exercise on executive function of healthy middle-aged and older adults and explore the dose-response relationship and moderators.

METHODS

We conducted comprehensive searches of PubMed, Embase, Cochrane Central Register of Controlled Trials, Web of Science, Scopus, PsycINFO, and SPORTDiscus for English literature, and CNKI, WanFang, and VIP for Chinese literature, covering the period from inception until April 25, 2024. Randomized controlled trials examining the effect of aerobic exercise on executive function in healthy middle-aged and older adults aged 45 or older were included. The Cochrane Collaboration's RoB2 tool was used to assess the methodological quality of the included studies. And subgroup analyses and meta-regressions were conducted to elucidate the impact of aerobic exercise on executive function.

RESULTS

Forty-two eligible randomized controlled trials, involving a total of 2881 participants, met the inclusion criteria for the systematic review and meta-analysis. The pooled results showed that aerobic exercise had positive effects on improving cognitive flexibility (Hedge's g = 0.343, p < 0.001), working memory (Hedge's g = 0.392, p < 0.001), and inhibitory control (Hedge's g = 0.229, p < 0.001) in healthy middle-aged and older adults. However, it did not demonstrate an improvement in planning (Hedge's g = 0.094, p = 0.440). The dose-response relationships between different exercise parameters and subdomains of executive functions revealed that the largest effects on cognitive flexibility were observed after 13-24 weeks of progression-intensity mind-body exercise, 46-60 min per session, and 5-7 days per week. Regarding working memory, the largest effects were observed after 13-24 weeks of progression-intensity general aerobic exercise, 20-45 min per session, and 5-7 days per week. For inhibitory control, the greatest effects were noted after 13-24 weeks of low-intensity general aerobic exercise, 20-45 min per session, and 3-4 days per week.

CONCLUSION

Aerobic exercise can significantly improve cognitive flexibility, working memory, and inhibitory control in healthy middle-aged and older adults. The effect of aerobic exercise on different aspects of executive function is influenced by specific exercise parameters, suggesting that personalized aerobic exercise programs may be more effective for enhancing executive function of healthy middle-aged and older adults.

Yoga as an intervention for stress: a meta-analysis

The escalating stress epidemic in modern society has raised concerns about its impact on physical and mental health, prompting the need for effective interventions. Yoga, a multifaceted mind-body practice, has gained recognition for its potential in mitigating perceived stress. Our meta-analysis aimed to estimate yoga's impact on lowering perceived stress as measured by the Perceived Stress Scale. We identified 36 studies meeting inclusion criteria and found a statistically significant moderate effect of yoga on reducing perceived stress (g = 0.48, 95% CI = 0.29-0.66). Our analysis uncovered substantial heterogeneity (Q = 117.33, p < .001), with 74.90% of the variation in effect sizes attributed to study characteristics. In planned moderator analyses, we hypothesised that yoga with breathwork, relaxation, high stress symptoms, greater number of hours practiced, and studies conducted in India would yield larger effects. Stress severity was shown to be statistically significant. However, the remaining hypotheses were not supported. Additionally, we examined five exploratory moderator variables, which did not yield significant results. Further research is needed to elucidate the source of heterogeneity across studies and reveal recommendations for specific populations.

Efficacy of Mind-body Exercise to Reduce Sleep Disturbance and Depression Among Older Adults: A Systematic Review and Meta-analysis

PURPOSE

Mind-body exercise is a promising non-pharmacological approach for managing sleep disturbance and depression that are prevalent among older adults, but its efficacy remains inconclusive across the studies. This study aimed to systematically evaluate and quantify the overall effectiveness of mind-body exercises on sleep disturbance and depression in older adults.

METHODS

We searched eight databases to identify relevant articles from their inception to April 2024. Experimental studies that evaluate the effects of mind-body movement therapy on sleep disturbance and depression in older adults were included. The Cochrane Risk of Bias tool version 2.0 was used to appraise included studies. The pairwise meta-analysis was performed through the software Comprehensive Meta-Analysis Version 3.0. Moreover, subgroup analysis was utilized to understand the effect size on each form of mind-body exercise and to determine the source of heterogeneity.

RESULTS

A total of 27 studies were eligible and synthesized. The mind-body exercise appears statistically significant in reducing sleep disturbance (SMD = -0.60, 95% CI: 0.76 ∼ 0.44) and depression (SMD = -0.56, 95% CI: 0.75 ∼ 0.36) among older adults. Each form of mind-body exercise, including pilates, yoga, qigong, and tai-chi, effectively decreases sleep disturbance and depression, but there were no significant differences in the effects between these practices.

CONCLUSION

The cumulative evidence concludes that older adults who participated in mind-body exercise programs showed potential improvements in sleep disturbance and depression. This finding may serve as evidence for professionals to use this approach as a non-pharmacological approach to help older adults in the community and long-term care facilities who are having sleep disturbance and depression. More clinical trials are needed for an in-depth meta-analysis that can rank and compare the efficacy of each mind-body exercise practice.

The impact of yoga on successful aging based on the selection, optimization, and compensation model in elderly women: A quasi-experimental study

OBJECTIVE

To investigate the impact of yoga on successful aging based on the selection, optimization, and compensation model in elderly women.

DESIGN

Quasi-experimental study.

SAMPLE

Seniors' meeting points and parks and clubs for the old age pensioners of the ministry of education, ministry of healthcare, and the oil corporation in Shiraz, Iran. 68 elderly women within the age range of 60-86 years were divided into a yoga and a control group.

MEASUREMENTS

The subjects in both groups were asked to complete the selection, optimization, and compensation model questionnaire before and after the intervention. Successful aging was measured using the selection, optimization, and compensation questionnaire.

INTERVENTION

The yoga training program was implemented in 1-h sessions twice a week for eight weeks.

RESULTS

After eight weeks of yoga training, the results showed a significant difference between the pretest and posttest successful aging total scores of the yoga group (P = .005). However, the difference between the yoga and control groups' posttest mean total scores was not significant (P = .601).

CONCLUSION

Based on the results, it seems that yoga training can improve successful aging. Thus, yoga is recommended as an inexpensive and entertaining method.

Neural Correlates of Balance Skill Learning in Young and Older Individuals: A Systematic Review and Meta-analysis

BACKGROUND

Despite the increasing number of research studies examining the effects of age on the control of posture, the number of annual fall-related injuries and deaths continues to increase. A better understanding of how old age affects the neural mechanisms of postural control and how countermeasures such as balance training could improve the neural control of posture to reduce falls in older individuals is therefore necessary. The aim of this review is to determine the effects of age on the neural correlates of balance skill learning measured during static (standing) and dynamic (walking) balance tasks in healthy individuals.

METHODS

We determined the effects of acute (1-3 sessions) and chronic (> 3 sessions) balance skill training on balance in the trained and in untrained, transfer balance tasks through a systematic review and quantified these effects by robust variance estimation meta-analysis in combination with meta-regression. We systematically searched PubMed, Web of Science, and Cochrane databases. Balance performance and neural plasticity outcomes were extracted and included in the systematic synthesis and meta-analysis.

RESULTS

Forty-two studies (n = 622 young, n = 699 older individuals) were included in the systematic synthesis. Seventeen studies with 508 in-analysis participants were eligible for a meta-analysis. The overall analysis revealed that acute and chronic balance training had a large effect on the neural correlates of balance skill learning in the two age groups combined (g = 0.79, p < 0.01). Both age groups similarly improved balance skill performance in 1-3 training sessions and showed little further improvements with additional sessions. Improvements in balance performance mainly occurred in the trained and less so in the non-trained (i.e., transfer) balance tasks. The systematic synthesis and meta-analysis suggested little correspondence between improved balance skills and changes in spinal, cortical, and corticospinal excitability measures in the two age groups and between the time courses of changes in balance skills and neural correlates.

CONCLUSIONS

Balance skill learning and the accompanying neural adaptations occur rapidly and independently of age with little to no training dose-dependence or correspondence between behavioral and neural adaptations. Of the five types of neural correlates examined, changes in only spinal excitability seemed to differ between age groups. However, age or training dose in terms of duration did not moderate the effects of balance training on the changes in any of the neural correlates. The behavioral and neural mechanisms of strong task-specificity and the time course of skill retention remain unclear and require further studies in young and older individuals.

REGISTRATION

PROSPERO registration number: CRD42022349573.

Holistic frailty prevention: The promise of movement-based mind-body therapies

Aging is characterized by fundamental cellular and molecular hallmarks that result in physiologic decline of most body systems. This may culminate in frailty, a state of decreased reserve. Because frailty is a state of multisystem dysregulation, multimodal interventions may be necessary to mitigate and prevent progression rather than interventions targeting a single system. Movement-based mind-body therapies, such as tai chi and yoga, are promising multimodal strategies for frailty prevention and treatment given their inherent multicomponent nature. In this review, we summarize the links between hallmarks of aging and frailty and how tai chi and yoga may impact these hallmarks. We review trial evidence for the impact of tai chi and yoga on frailty in older populations and discuss opportunities for future research.

Use of Complementary and Integrative Medicine for Alzheimer's Disease and Cognitive Decline

Integrative medicine takes a holistic approach because it considers multiple aspects of the individual. This includes a person's physical, emotional, interpersonal, behavioral, nutritional, environmental, and spiritual dimensions of wellbeing that contribute to the Whole Person Health. There is increasing interest and popularity of integrative approaches to treating cognitive decline and dementia because of the multifactorial nature of aging and the limited pharmacological interventions available in treating cognitive decline and dementia, particularly Alzheimer's disease, the most common type of dementia. This review summarizes the existing evidence using complementary and integrative medicine therapies in cognitive decline and Alzheimer's disease. This includes the use of mind-body therapies, lifestyle interventions (nutritional, physical exercise, stress reduction), and other integrative modalities. Unfortunately, there are still limited studies available to guide clinicians despite the increasing popularity of integrative treatments.

A systematic review with meta-analysis of Yoga's contributions to neuropsychiatric aspects of aging

Yoga is one of the most common Complementary and Alternative Medicines (CAM) for mind-body approaches to psychological and stress-related conditions in aging. Such wide usage demands the review and systematization of the scientific literature, searching for accumulated evidence of its effectiveness. We reviewed the literature to assess whether Yoga would offer significant improvements to neuropsychiatric aspects of the elderly: anxiety, depression, stress, memory and executive functions.

METHODS

This systematic review with meta-analyses organized the results from all analyzed articles, comparing them between the experimental and either the control or waiting groups, calculating the effect size (Cohen-d) and the p-value of a two-tailed T-test. We presented the transformed metadata in forest graphs.

RESULTS AND DISCUSSION

Given the heterogeneity of methods, results, and effect sizes of each study and due to the number of articles found, this meta-analysis indicates that it is not possible to state that Yoga reduces anxiety and stress in the elderly or improves cognition. However, this meta-analysis found significant results of Yoga in reducing depression with small to medium effect sizes.

CONCLUSION

According to the currently available literature on Yoga and aspects of aging, we concluded that yoga was effective in most studies on reducing depression.

Retrospective study on the correlation between serum MIF level and the condition and prognosis of patients with traumatic head injury

Objective

This study aimed to investigate the correlation between serum levels of macrophage migration inhibitory factor (MIF) and the condition and prognosis of patients with traumatic brain injury (TBI).

Methods

A retrospective study design was used, and the clinical data of 131 TBI patients from February 2019 to January 2022 were analyzed. Patients were divided into mild (13-15 points), moderate (9-12 points), or severe (3-8 points) groups according to their Glasgow Coma Scale (GCS) score after admission. The serum levels of BDNF, MIF, and MBP in the three groups were compared, and their correlation with the severity of TBI was analyzed. Patients were then separated into a good prognosis group (4-5 points) and a poor prognosis group (≤3 points) based on their Glasgow Prognostic Score (GOS) after 6 months of follow-up. The predictive power of serum indexes and combined detection on prognosis was analyzed.

Results

Patients were classified into a mild group (n = 63), moderate group (n = 47), and severe group (n = 21) based on their GCS, with a significant difference noted in serum levels of MIF, MBP, and BDNF among patients with different degrees of severity (all P < 0.001). The MIF, MBP, and BDNF levels were lower in the mild group compared to the moderate (all P < 0.001) and severe group (all P < 0.001). Additionally, the MIF and BDNF levels in the moderate group were lower compared to the severe group (P = 0.011, P = 0.002). Patients with mild severity had lower serum MIF, MBP, and BDNF levels than those with other degrees, and these indexes were positively correlated with the severity of TBI (all P < 0.001, r = 0.62, r = 0.48, r = 0.58). Based on the GOS, patients were divided into a good prognosis group (n = 107) and a poor prognosis group (n = 24), with the levels of MIF, MBP, and BDNF in the good prognosis group being significantly lower than those in the poor prognosis group (P < 0.001, P = 0.007, P = 0.003). The area under the curve (AUC) of MIF was higher than that of MBP and BDNF in predicting the prognosis of TBI patients; however, the statistical differences were not significant (MIF vs. MBP, P = 0.239; MIF vs. BDNF, P = 0.211; BDNF vs. MBP, P = 0.899). The center line has a large displacement, CT annular cisterna compression, increased white blood cell count, MBP and BDNF were risk factors for prognosis in TBI patients (P = 0.005, P = 0.001, P = 0.005, P = 0.033, P = 0.044).

Conclusion

The serum levels of MIF, MBP, and BDNF in TBI patients were positively correlated with the severity of the disease, and MBP, BDNF levels had predictive value in determining patient prognosis.

Effect of Yoga on Frailty in Older Adults : A Systematic Review

BACKGROUND

Yoga, a multicomponent mind-body practice, improves several domains of physical and psychological health and may affect frailty in older adults.

PURPOSE

To evaluate the available trial evidence on the effect of yoga-based interventions on frailty in older adults.

DATA SOURCES

MEDLINE, EMBASE, and Cochrane Central from their inception to 12 December 2022.

STUDY SELECTION

Randomized controlled trials evaluating the effect of yoga-based interventions, including at least 1 session of physical postures, on a validated frailty scale or single-item markers of frailty in adults aged 65 years or older.

DATA EXTRACTION

Two authors independently screened articles and extracted data; 1 author assessed risk of bias with review from a second author. Disagreements were resolved through consensus and as-needed input from a third author.

DATA SYNTHESIS

Thirty-three studies (n = 2384 participants) were identified in varied populations, including community dwellers, nursing home residents, and those with chronic disease. Yoga styles were primarily based on Hatha yoga and most often included Iyengar or chair-based methods. Single-item frailty markers included measures of gait speed, handgrip strength, balance, lower-extremity strength and endurance, and multicomponent physical performance measures; no studies included a validated definition of frailty. When compared with education or inactive control, there was moderate-certainty evidence that yoga improved gait speed and lower-extremity strength and endurance, low-certainty evidence for balance and multicomponent physical function measures, and very low-certainty evidence for handgrip strength.

LIMITATION

Heterogeneity in study design and yoga style, small sample sizes, and reporting deficiencies leading to concerns for selection bias.

CONCLUSION

Yoga may affect frailty markers that are associated with clinically meaningful outcomes in older adult populations but may not offer benefit over active interventions (for example, exercise).

PRIMARY FUNDING SOURCE

None. (PROSPERO: CRD42020130303).

Four-Week Application of Kinesiotaping Improves Proprioception, Strength, and Balance in Individuals With Complete Anterior Cruciate Ligament Rupture

ABSTRACT

Kielė, D and Solianik, R. Four-week application of kinesiotaping improves proprioception, strength, and balance in individuals with complete anterior cruciate ligament rupture. J Strength Cond Res 37(1): 213-219, 2023-Kinesiotaping (KT) is common in musculoskeletal rehabilitation, but whether it is efficacious for surgically untreated anterior cruciate ligament (ACL) ruptures is unknown. Therefore, we evaluated whether a strategy of physiotherapy plus KT would be superior to a strategy of physiotherapy alone on subsequent proprioception and motor function. Men aged 28.1 ± 6.7 years with complete ACL ruptures were randomized to either a control (physiotherapy) or an experimental group (physiotherapy + KT) for a 4-week period. Changes in balance were assessed on the injured leg using a force platform. Knee angle reproduction, maximal voluntary contraction (MVC), and rate of force development (RFD) were measured using dynamometry, and pain was recorded using a visual analog scale. Decreases in knee pain and improvements in angle reproduction were observed in both groups ( p < 0.05), with a greater effect on angle reproduction in the experimental group ( p < 0.05). Both groups demonstrated increased isometric knee flexor MVC and RFD values ( p < 0.05), but an increase in RFD of the knee extensors was observed only in the experimental group ( p < 0.05). Furthermore, the MVC of concentric knee flexors at 60°·s -1 increased only in the experimental group ( p < 0.05), whereas concentric MVC at 180°·s -1 -resulting in greater hamstring-to-quadriceps ratios-increased in both groups ( p < 0.05). Balancing ability on the injured leg increased only in the experimental group ( p < 0.05). Thus, KT plus physiotherapy was beneficial in the treatment of proprioception, strength, and static balance in these individuals with an ACL rupture.

What Types of Exercise Are Best for Emotional Intelligence and Logical Thinking?

The aim of our study was to determine whether EI and LT vs. intuitive thinking (CRT score) are related to participation in professional sports, independent exercise, and exercise at a gym/health center compared with no exercise. We selected 20 of the most popular types of exercise in Lithuania among respondents who exercise independently or at a gym/health center, and we ranked these types of exercise according to the participants' emotional intelligence and logical thinking. We studied 4545 women and 1824 men aged 18-74 years with a focus on whether emotional intelligence and logical thinking are related to type of exercise. Participation in any exercise was significantly related to emotional intelligence in men and women. Women in professional sports solved the lowest number of logic tasks. Women who exercise independently or at a gym/health center had better logical thinking than those who do not exercise. Among men, logical thinking was not associated with the type of exercise. We found the tendency for a negative correlation between EI and LT in the 20 most popular types of exercise. Emotional intelligence correlated positively with participation in MVPA. The highest emotional intelligence was in women who participate in dance or Pilates and in men who participate in martial arts, wrestling, boxing, or yoga. Logical thinking was the highest in men who participate in triathlon and in women who perform CrossFit. Men who practice martial arts or track and field and women who participate in cycling were in the top five for emotional intelligence and logical thinking.

Do Physical Activity, BMI, and Wellbeing Affect Logical Thinking?

We studied 6368 people (4544 women and 1824 men; aged 18–74 years). The research goal was to determine whether the Cognitive Reflection Test score (logical thinking compared with intuitive thinking) depends—and in what way it depends—on the healthy lifestyle components and emotional health-related components as well as age (18–74 years) and gender. We established that analytical vs. intuitive thinking depended on components of a healthy lifestyle, physical activity, sleep, eating habits, smoking and alcohol consumption, specificity of sporting activity, body mass index, and emotional health-related components (stress, depression, impulsivity, subjective health, emotional intelligence), as well as age and gender. We found that logical thinking was not associated with sleep, moderate-to-vigorous PA, impulsivity, subjective health, and components of a healthy lifestyle. However, logical thinking decreases with age, gender (higher in men than in women), BMI (decreases in both genders over the second degree of obesity), depression (the more severe depression in women, the worse their logical thinking), sedentary behavior (people who sat for longer periods had more difficulty solving problems), and in professional sportswomen (logical thinking is worse in professional sportswomen than in sedentary women, amateur sportswomen, or women who use gyms). Finally, we determined inverse correlations between logical thinking, emotional intelligence, and stress.

The effect of physical exercise on circulating brain-derived neurotrophic factor in healthy subjects: A meta-analysis of randomized controlled trials

OBJECTIVE

To investigate how physical exercise (PE) would affect brain-derived neurotrophic factor (BDNF) in randomized controlled trials (RCTs) of healthy subjects.

METHODS

Seven databases (PubMed, Web of Science, Cochrane, Embase, PsycINFO, CINAHL, SPORTDiscus) were searched for RCTs assessing the effects of PE on serum and/or plasma BDNF until December 18, 2021. Meta-analysis was performed by random-effects method with standardized mean difference (SMD) and 95% confidence intervals (CIs). Subgroup analysis and meta-regression analysis were conducted to investigate the potential source of heterogeneity. Trim and fill method, and leave-one-out cross-validation were conducted.

RESULTS

Eventually, 21 articles, involving 809 participants, were included in the meta-analysis. Overall, both acute (5 trials, SMD: 1.20, 95% CI: 0.36 to 2.04, p = .005) and long-term (17 trials, SMD: 0.68, 95% CI: 0.27 to 1.08, p = .001) PE had significant positive effects on BDNF levels. Via subgroup analysis, studies of long-term PE with larger sample sizes, female participants, participants older than 60 years, and aerobic exercise contributed to a more pronounced improvement on BDNF levels than that found when all studies were combined.

CONCLUSION

Both acute and long-term PE had significant positive effects on circulating BDNF in healthy subjects. This review suggests that acute exercise and long-term aerobic exercise are powerful forms of PE to enhance neurotrophic effect, especially for female subjects or subjects over 60 years.

Tai chi improves psychoemotional state, cognition, and motor learning in older adults during the COVID-19 pandemic

The aim of this study was to determine the effect of a 10-week tai chi intervention on psychoemotional state, cognition, and motor learning in older adults during the COVID-19 pandemic. Participants aged 60-78 years were randomized to either a control group (n = 15) or a tai chi group (n = 15) for a 10-week period. The tai chi group received two, 8-form tai chi classes of 60 min duration per week. Changes in psychoemotional state, cognition, and the learning of fast and accurate reaching movements were assessed. In addition, the potential roles of the autonomic nervous system and brain-derived neurotrophic factor (BDNF) were investigated. Tai chi practice decreased (P < 0.05) perceived stress, whereas no change in autonomic nervous system activity was observed. Improvements in mental switching correlated with decreased depressive symptoms and increased BDNF levels (P < 0.05), whereas improvements in inhibitory control tended to correlate with BDNF levels (P = 0.08). Improvements in visuospatial processing tended to correlate with decreased depressive symptoms (P = 0.07) while improved visuospatial processing correlated with improved motor planning during learning tasks (P < 0.05). This study suggests that tai chi is an effective intervention that can be delivered under pandemic conditions to improve mental and physical function in older adults.

The Effects of Lifestyle Interventions on the Health-Promoting Behavior, Type D Personality, Cognitive Function and Body Composition of Low-Income Middle-Aged Korean Women

Low-income middle-aged women (LMW) who are vulnerable have various physical and psychosocial problems. They need lifestyle interventions to actively cope with these risk factors. This study used a randomized control group pretest-posttest design. LMW aged from 40 to 60 years were recruited and randomly assigned to an experimental group (n = 31) and a control group (n = 32). The lifestyle interventions for this study, which were implemented for eight weeks, included nutritional management, physical activity, stress management and cognitive function improvement based on King’s goal attainment theory. The measured outcomes were health-promoting behaviors, Type D personality, cognitive function and body composition. The experimental group scored significantly higher than the control group for health-promoting behaviors (effect size (ES) = 0.68~1.27, p < 0.001~0.014) and cognitive function (ES = 0.79~1.31, p < 0.001~0.005). The negative affectivity (ES = 0.70, p = 0.012) and the prevalence of a Type D personality (x² = 4.39, p = 0.047) and the systolic blood pressure (ES = 0.65, p = 0.019) decreased significantly in the experimental group compared with the control group. Lifestyle interventions for LMW were effective in improving health-promoting behavior, Type D personality traits and cognitive function.

Effects of yoga-based interventions on cognitive function in healthy older adults: A systematic review of randomized controlled trials

BACKGROUND

The world's elderly population is growing. Physical activity has positive effects on health and cognition, but is decreasing among the elderly. Interest in yoga-based exercises has increased in this population, especially as an intervention targeting balance, flexibility, strength, and well-being. Recent interest has arisen regarding yoga's potential benefits for cognition.

OBJECTIVE

To systematically review evidence from randomized controlled trials (RCTs) examining the effects of yoga-based interventions on cognitive functioning in healthy adults aged ≥60. A secondary aim was to describe intervention characteristics and, where possible, the extent to which these influenced study outcomes.

METHOD

The review was conducted in accordance with PRISMA guidelines. Searches were performed from inception to June 2020 using the following electronic databases: (1) PubMed (NLM); (2) Embase (Elsevier); (3) Cochrane Central (Wiley); (4) PsycINFO (EBSCOhost); and (5) Cinahl (EbscoHost).

INCLUSION CRITERIA

RCTs of yoga-based interventions assessing cognition in healthy adults ≥60 years. Risk of bias was assessed using the revised Cochrane risk of bias tool.

RESULTS

A total of 1466 records were initially identified; six studies (5 unique trials) were included in the review. Four of the six articles reported significant positive effects of yoga-based interventions on cognition, including gross memory functioning and executive functions. Intervention characteristics and assessment methods varied between studies, with a high overall risk of bias in all studies.

CONCLUSION

Yoga-based interventions are associated with improvements in cognition in healthy older adults. Adequately powered RCTs with robust study designs and long-term follow-ups are required. Future studies should explicitly report the intervention characteristics associated with changes in cognitive function.

Two Months of Using Global Recommendations for Physical Activity Had No Impact on Cognitive or Motor Functions in Overweight and Obese Middle-Aged Women

BACKGROUND

The effect of globally recommended levels of physical activity on cognition and motor behavior is not completely understood. Therefore, the main aim of this study was to assess the effect of 300 minutes per week of moderate-intensity aerobic exercise on cognitive and motor performance among overweight and obese working-age women.

METHODS

Overweight and obese participants aged 38-56 years were randomized to either a control or an experimental group performing aerobic exercise at 50% to 60% of the peak oxygen consumption for a 2-month period. Changes in aerobic fitness, cardiac autonomic function, brain-derived neurotropic factor levels, and cognitive and motor performance were assessed.

RESULTS

Although aerobic exercise reduced body weight (P < .05) and improved peak oxygen consumption (P < .05), the brain-derived neurotropic factor levels and cognitive and motor performance remained unchanged. Heart rate and blood pressure decreased (P < .05), whereas heart rate variability indices were not affected. No significant correlations between changes in heart rate variability indices and cognition were observed.

CONCLUSIONS

Two months of moderate-intensity aerobic exercise decreased sympathetic activity and improved cardiovascular fitness but had no impact on cognition or motor control among these middle-aged, overweight, and obese women.