Benefits Of Exercise Research Articles

Exercise interventions for mitigating the persistent side effects of COVID-19

AbstractFollowing infection with Sars-Cov2, a significant proportion of patients suffer from long-term symptoms afflicting many of the body’s systems. The understanding of these sequelae is still evolving, and as of the present diagnostic techniques and symptom management are still developing to effectively combat the wide variety of long-term symptoms. Many of the long-term symptoms observed following cases of COVID-19 are present in other chronic illnesses, and exercise intervention has been observed as a potent therapy for the alleviation of many of those symptoms. However, the effects of exercise regimens in the treatment of long COVID symptoms are not well documented, and there is little information regarding the nature of those interventions. A review of the available literature was conducted to determine the nature of the post-acute sequelae of COVID-19 (PASC) and identify the potential impact exercise intervention could have in alleviating these sequelae. Overall, intensity and modality of treatment are paramount to the success of a multifaceted exercise intervention to provide the greatest benefits to patients suffering from PASC. There are some limitations to the provision of exercise therapy as an intervention for COVID-19 patients, but nonetheless the benefits of exercise are sufficient that further research is implicated.

Facilitators and barriers in the implementation of a fall prevention program based on physical activity for elderly people living in the community: A qualitative study.

Physical activity is recognized as beneficial for older individuals in preventing falls. Achieving high adherence to exercise programs among the elderly poses challenges for administrations and healthcare systems. This study explored the facilitators and barriers perceived by both the participants and nurse trainers involved in an exercise program aimed at preventing falls in primary healthcare. Sixteen semi-structured interviews with elderly people who had participated in the Otago Exercise Program and a focus group of nurse trainers of this program were conducted between October 2018 and September 2019 in primary health care centers in Lleida, Spain. Interviews were transcribed and analyzed using inductive thematic analysis with Atlas.ti 8 software. Analysis revealed five overarching categories and 17 subcategories. Key facilitators included personal motivation, the perceived benefits of exercise, and the supportive role of nurse trainers. Primary barriers encompassed factors such as the excessive duration of the program, not considering personal preferences for individual or group participation, and differences in physical condition among group participants. To increase participation and adherence to exercise programs, it is necessary to consider the important role of the nursing professionals that recommend program enrolment and the participants' personal motivations. The program with group sessions is a model that is easy to integrate into Primary Healthcare centers, which must always take into account the preferences and physical conditions of the participants.

The impact of exercise on mental health: a narrative review

It has become increasingly clear that exercise not only improves physical health but also significantly affects mental well-being, presenting a non-pharmaceutical approach to manage various psychological conditions. This narrative review summarizes studies from the literature to understand the effects of exercise on mental health, particularly in depression, anxiety, and global psychological well-being. Results indicate that regular physical activity, including aerobic and resistance exercises, reduces depression and anxiety symptoms, improves mood, and enhances cognitive abilities. Theoretical models, such as the endorphin hypothesis and neurogenesis hypothesis, explain these benefits through mechanisms including endorphin release, reduced stress hormones, improved sleep, and neurogenesis. Evidence suggests that structured exercise programs can match the effectiveness of psychotherapy or medication with fewer adverse effects. The benefits of regular exercise have garnered attention from professionals, physicians, and policymakers, highlighting the necessity of incorporating exercise plans into mental health clinical practice. Additionally, this review advocates for more specific and personalized exercise interventions tailored to individual characteristics and preferences. It also aims to inform health and research agendas by specifying the optimal exercise type and intensity for eliciting desired benefits, and evaluating the potential for exercise interventions to sustain long-term psychological well-being.

Validity and reliability of the Turkish version of Exercise Benefits/ Barriers Scale: Perceived exercise benefits and barriers of patients with different axial spondyloarthritis subtypes

Objectives: The aim of this study was to translate the Exercise Benefits/Barriers Scale (EBBS) into Turkish and investigate the perceptions of Turkish-speaking patients with different axial spondyloarthritis (axSpA) subtypes regarding exercise benefits and barriers. Patients and methods: This validation study was conducted between June 2018 and December 2021. Patients with axSpA were consecutively assessed regarding physical (age, sex and body mass index) and disease-related characteristics (disease activity, spinal mobility, functional status, quality of life, health status, emotional status, and kinesiophobia). Eligible participants were asked to complete the EBSS and other outcome measurements during their initial visits. EBBS was readministered 7 to 14 days later. Results: One hundred forty-eight patients (89 males, 59 females; mean age: 44.3±11.8 years; range, 19 to 65 years) were included in the study. Of the patients, 108 had radiographic axSpA, and 40 had nonradiographic axSpA. EBBS-Barriers and EBBS-Benefits subscales demonstrated adequate internal consistency (Cronbach’s alphas of 0.82 and 0.95, respectively) and test-retest reliability (intraclass correlation coefficients of 0.837 and 0.807, respectively). No significant differences were observed between axSpA subtypes regarding EBBS-Barriers (p=0.12) and EBBS-Benefits (p=0.10) subscales. Significant relationships were detected between kinesiophobia and EBBS-Barriers scores (r=–0.424, p<0.01), as well as EBBS-Benefits scores (r=–0.344, p<0.01) for all patients. EBBS-Benefits scores were correlated to health status (r=–0.412, p=0.08) and quality of life (r=–0.394, p=0.01) in patients with nonradiographic axSpA. Conclusion: According to our results, the Turkish EBBS is a valid and reliable tool for patients with axSpA. Perceptions of the patients with axSpA regarding exercise barriers and benefits do not differ according to the disease subtype. It appears that kinesiophobia may be an important parameter regarding exercise perception in axSpA.

From Diagnosis to Recovery: The Life-Changing Benefits of Exercise for Cancer Patients

Physical activity has emerged as a crucial component in the comprehensive care of oncological patients, offering significant benefits across the cancer continuum—from prevention to treatment, recovery, and survivorship. This article provides an in-depth exploration of the role of exercise in cancer care, highlighting its potential to improve physical function, reduce treatment-related side effects, enhance mental well-being, and improve overall quality of life. Epidemiological evidence supports the protective effect of regular physical activity in reducing the risk of developing certain cancers, such as breast, colorectal, and endometrial cancer, through mechanisms like hormonal regulation, inflammation reduction, and immune function enhancement. During active cancer treatment, exercise helps combat common side effects such as fatigue, muscle wasting, and cardiovascular decline, while also offering psychological benefits like reduced anxiety and depression. Tailored exercise programs, developed in collaboration with healthcare professionals, are essential for addressing the unique needs of cancer patients, considering factors like cancer type, treatment stage, and comorbidities. Post-treatment, physical activity continues to play a vital role in rehabilitation, reducing the risk of recurrence, and supporting long-term survivorship. Despite the clear benefits, barriers such as physical limitations, psychological distress, and lack of access to resources can hinder patients' ability to engage in regular exercise. Addressing these challenges through personalized care plans, patient education, and supportive interventions is crucial. As research in exercise oncology advances, integrating physical activity into routine cancer care holds promise for improving outcomes and enhancing the overall well-being of cancer patients.

Limited Evidence for the Benefits of Exercise in Older Adults with Hematological Malignancies: A Systematic Review and Meta-Analysis.

Older patients receiving antineoplastic treatment face challenges such as frailty and reduced physical capacity and function. This systematic review and meta-analysis aimed to evaluate the effects of exercise interventions on physical function outcomes, health-related quality of life (QoL), and symptom burden in older patients above 65 years with hematological malignancies undergoing antineoplastic treatment. This review adheres to Cochrane guidelines, with the literature searches last updated on 27 March 2024, including studies with patients above 18 years. Screening of identified studies, data extraction, risk of bias, and GRADE assessments were performed independently by two authors. Meta-analyses evaluated the impact of exercise, considering advancing age. Forty-nine studies contributed data to the meta-analyses. Five studies included patients with a mean age above 60 years, and none included only patients above 60. Exercise interventions had moderate to small positive effects on QoL global (SMD 0.34, 95% CI [0.04-0.64]) and physical function (SMD 0.29, 95% CI [0.12-0.45]). Age did not explain the variability in exercise effects, except for physical function (slope 0.0401, 95% CI [0.0118-0.0683]) and pain (slope 0.0472, 95% CI [0.01-0.09]), which favored younger patients. Exercise interventions improve physical function and QoL and reduce symptoms in adults with hematological malignancies undergoing antineoplastic treatment; however, the influence of age remains inconclusive.

A comparison of continuous, interval, and accumulated workouts with equalized exercise volume: excess post-exercise oxygen consumption in women

BackgroundDespite the well-known health benefits of exercise, women’s participation in exercise is low worldwide. As women are at risk of developing various chronic diseases as they age, suggesting effective exercise methods that can maximize energy consumption is needed to prevent such conditions. Excess post-exercise oxygen consumption (EPOC) can maximize energy consumption. In this crossover, randomized controlled trial, we aimed to compare the EPOC for different exercise modalities including continuous exercise (CE), interval exercise (IE), and accumulated exercise (AE) that spent the homogenized energy expenditure during exercise in healthy women.MethodsForty-four participants (age, 36.09 ± 11.73 years) were recruited and randomly allocated to three groups. The intensity of each modality was set as follows: CE was performed for 30 min at 60% peak oxygen uptake (VO2peak). IE was performed once for 2 min at 80% VO2peak, followed by 3 min at 80% VO2peak, and 1 min at 40% VO2peak, for a total of six times over 26 min. AE was performed for 10 min with a 60% VO2peak and was measured thrice a day.ResultsDuring exercise, energy metabolism was higher for IE and CE than that for AE. However, this was reversed for AE during EPOC. Consequently, the greatest energy metabolism was shown for AE during total time (exercise and EPOC).ConclusionsBy encouraging regular exercises, AE can help maintain and improve body composition by increasing compliance with exercise participation, given its short exercise times, and by efficiently increasing energy consumption through the accumulation of EPOC.Trial registrationClinical number (KCT0007298), 18/05/2022, Institutional Review Board of Konkuk University (7001355-202201-E-160).

A daily exercise prescription when work gets tough: The moderating effect of work demands on the relationship between daily physical exercise and next-day well-being and job performance.

Physical exercise is widely recognized for its benefits to individuals' general health, yet its implications for in-role and extrarole job performance, especially on demanding workdays, have rarely been explored. This oversight is concerning as high work demands can deter employees from exercising when they are unaware that exercise can improve their job performance on demanding workdays. In this research, we draw on the effort-recovery model to propose that daily physical exercise not only promotes next-day well-being but also enhances next-day in-role job performance and extrarole organizational citizenship behavior (OCB) by fostering positive affect and work engagement the following day. Moreover, these benefits of daily physical exercise are more pronounced on days with high rather than low work demands. Results from two experience sampling studies generally support our hypotheses, revealing that daily physical exercise contributes to next-day well-being, both self- and leader-rated in-role job performance and self-rated, but not leader-rated, extrarole OCB, through the sequential mediation of next-morning positive affect and next-day work engagement. Furthermore, these benefits of physical exercise are more evident on days when employees face high overall work demands (Study 1) and in particular on days with high-hindrance demands but on days with low-challenge demands (Study 2). (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Impact of Physical Exercise on Quality of Life, Self-Esteem, and Depression in Breast Cancer Survivors: A Pilot Study

Controlled study designs usually report that physical exercise improves the health of women living with breast cancer. However, many of these women are not sufficiently active to experience the benefits of exercise. The main objective was to analyze the effect of a physical exercise program on quality of life, self-esteem, and depression in breast cancer survivors. Thirteen participants (46.54 ± 6.31 years old) completed the exercise intervention. Three patient-reported questionnaires were used: Supplementary Questionnaire Breast Cancer Module (QLQ-BR23), Beck Depression Inventory (BDI), and Rosenberg Self-Esteem Scale (RSES). All participants had significantly improved self-esteem (p = 0.004). Although there were no statistically significant changes in depression, there was a notable decrease in scores (6.39 ± 4.75 vs. 5.00 ± 4.75; p = 0.080). Regarding quality of life, significant improvements were observed in “future perspectives” (p = 0.047) and “arm symptoms” (p = 0.015). No significant changes were noted in the other variables. Our results suggest that physical exercise is an effective strategy that positively affects breast cancer survivors’ quality of life and self-esteem. The results reinforce the need for community-based exercise programs for breast cancer survivors. Healthcare professionals should promote physical exercise to improve health outcomes before, during, and after treatment.

Aerobic exercise as a non-pharmacological intervention for improving metabolic and hemodynamic profiles in type 2 diabetes.

Type 2 Diabetes Mellitus (T2DM) is a global health concern associated with numerous complications. Aerobic exercise is recognized as a crucial non-pharmacological intervention for T2DM management, but its specific effects on key health parameters warrant further investigation. This study aimed to evaluate the impact of a structured 8-week aerobic exercise program on fasting blood glucose (FBG), glycated haemoglobin (HbA1c), body mass index (BMI), blood pressure (BP), and resting heart rate (RHR) in individuals with T2DM. A prospective study was conducted with 100 participants diagnosed with T2DM. The intervention group (n = 50) underwent a supervised aerobic exercise program for eight weeks, while the control group (n = 50) received no structured exercise intervention. Pre- and post-intervention assessments were conducted to measure FBG, HbA1c, BMI, BP, RHR, and VO₂ max were taken. The aerobic group exhibited a significant reduction in FBG, declining from 141 to 132 mg/dl. Correspondingly, HbA1c decreased from 7.93 to 7.15%. Additionally, the aerobic group demonstrated a notable decrease in RHR from 72 to 66 bpm, indicating improved cardiovascular fitness. Concurrently, VO2 max increased from 22 to 26 mL/kg/min, further supporting the enhancement of cardiorespiratory capacity. Trends toward improvement were also observed in SBP and DBP. Correlation analysis revealed significant relationships between various health parameters, highlighting the interconnectedness of these variables in T2DM management. This study provides robust evidence supporting the benefits of aerobic exercise in individuals with T2DM. The improvements in glycemic control, blood pressure, and cardiorespiratory fitness underscore the importance of incorporating structured exercise programs into diabetes management protocols. The results emphasize the importance of incorporating regular physical activity into diabetes management strategies to optimize health outcomes and reduce the risk of complications.

Pregnant women's knowledge, attitude, and practice toward physical exercise during pregnancy and its associated factors at Dessie town health institutions, Ethiopia

Physical exercise consists of planned, repetitive, and intentional movements that reduce the risk of pregnancy-related complications. Worldwide, there is a high rate of physical inactivity during pregnancy, including in Ethiopia, which has detrimental effects on both pregnant women and their developing fetus. This study aimed to assess pregnant women's knowledge, attitude, and practice toward physical exercise during pregnancy and its associated factors among antenatal care attendants at health institutions in Dessie, South Wollo Zone, Amhara Region, Ethiopia, in 2023. An institutional-based cross-sectional study was conducted among 614 pregnant women receiving antenatal care between January 18, 2023, and February 25, 2023. The study participants were selected using systematic random sampling technique. Data were collected using a pretested, face-to-face interviewer-administered, and semistructured questionnaire. The data were cleaned, coded, and entered into EpiData (version 4.6; www.epidata.dk) and analyzed using SPSS (version 25; SPSS Inc, Chicago, IL). Bivariate and multivariate binary logistic regression analyses were performed to identify factors associated with knowledge, attitude, and practice toward physical exercise during pregnancy. Variables with a P value of <.2 in the bivariate analysis were transferred to the multivariate analysis. Finally, the adjusted odds ratio and 95% confidence interval with a P value of <.05 in the multivariate analysis were considered statistically significant. The study found that 56.3% of participants had good knowledge, 51.5% of participants had a favorable attitude, and 32.2% of participants practiced physical exercise during pregnancy. Age, educational level, and heard about physical exercise during pregnancy were positively associated with pregnant women's knowledge and attitude. In addition, age, antenatal care follow-up, no history of abortion, ever done physical exercise before becoming pregnant, and good knowledge were positively associated with pregnant women's practice of physical exercise during pregnancy. Our findings indicate that approximately half of the participants had good knowledge and a favorable attitude. However, almost one-third of the participants practiced physical exercise during their pregnancy. It is recommended that antenatal care providers advise pregnant women to strengthen their antenatal care follow-up and offer health education and counseling about the benefits of physical exercise during pregnancy.

Intrinsic Skeletal Muscle Function and Contraction-stimulated Glucose Uptake Do Not Vary by Time-of-day in Mice.

A growing body of data suggests that skeletal muscle contractile function and glucose metabolism vary by time-of-day, with chronobiological effects on intrinsic skeletal muscle properties being proposed as the underlying mediator. However, no studies have directly investigated intrinsic contractile function or glucose metabolism in skeletal muscle over a 24h circadian cycle. To address this, we assessed intrinsic contractile function and endurance, as well as contraction-stimulated glucose uptake, in isolated extensor digitorum longus and soleus from mice at four times-of-day (zeitgeber times 1, 7, 13, 19). Significantly, though both muscles demonstrated circadian-related changes in gene expression, there were no differences between the four time points in intrinsic contractile function, endurance, and contraction-stimulated glucose uptake, regardless of sex. Overall, these results suggest that time-of-day variation in exercise performance and the glycemia-reducing benefits of exercise are not due to chronobiological effects on intrinsic muscle function or contraction-stimulated glucose uptake.

Sport and longevity: an observational study of international athletes.

The human lifespan is influenced by various factors, with physical activity being a significant contributor. Despite the clear benefit of exercise on health and longevity, the association between different types of sports and lifespan is yet to be considered. Accordingly, we aimed to study this association in a large international cohort of former athletes using a robust linear regression model. We collected data on athletes from public sources, accumulating a total of 95,210 observations, 95.5% of which were accounted for by males. The dataset represented athletes born between 1862 and 2002 from 183 countries across 44 sports disciplines. We calculated the change in lifespan by measuring the difference in age between athletes and the corresponding reference populations, while accounting for variations caused by sex, year of death, and country. The results revealed that various sports impacted lifespan differently, with male athletes being more likely to experience benefits from sports than female athletes. Among male athletes, pole vaulting and gymnastics were linked to the highest extension in lifespan (8.4years, 95% CI [6.8, 9.9] and 8.2years, 95% CI [7.4, 9], respectively), while volleyball and sumo wrestling were the most negatively associated with lifespan (- 5.4years, 95% CI [- 7, - 3.8]; - 9.8years, 95% CI [- 11, - 8.6], respectively). The association between lifespan and popular team sports in males was positive for cricket, rowing, baseball, water polo, Australian rules, hurling, lacrosse, field hockey, minimal for rugby, canoeing and kayaking, basketball, gridiron football, and football (soccer), and negative for handball and volleyball. Racquet sports (i.e., tennis and badminton) exhibited a consistent and positive association in both male and female athletes, as shown by an extended lifespan of up to 5.7years in males (95% CI [5, 6.5]) and 2.8years in females (95% CI [1.8, 3.9]). Although lacking conclusive evidence, we theorize that the observed results may be attributed to the aerobic and anaerobic characteristics of each sport, with mixed sports yielding the maximum benefits for the lifespan. While results from female athletes should be cautiously interpreted, our study highlights the complex interplay between sports and lifespan and contributes to the growing body of knowledge on the multifaceted relationship between physical activity and human longevity.

The weekend warrior effect: Consistent intermittent exercise induces persistent cognitive benefits

Exercise provides a range of cognitive benefits, including improved memory performance. Previously, we demonstrated that 14 days of continuous voluntary wheel-running exercise enables learning in a hippocampus-dependent Object Location Memory (OLM) task under insufficient, subthreshold training conditions in adult mice. Whether similar exercise benefits can be obtained from consistent intermittent exercise as continuous exercise is unknown. Here, we examine whether intermittent exercise (the weekend warrior effect: 2 days of exercise a week for 7 weeks) displays similar or distinct cognitive benefits as previously examined with 14 days of continuous exercise. We find that both continuous and intermittent exercise parameters similarly enable hippocampus-dependent OLM compared to the 2-day exercise control group. Mice receiving intermittent exercise maintained cognitive benefits following a 7-day sedentary delay, whereas mice that underwent 14 continuous days of exercise showed diminished cognitive benefits as previously reported. Further, compared to continuous exercise, intermittent exercise mice exhibited persistently elevated levels of the genes Acvr1c and Bdnf which we know to be critically involved in hippocampus-dependent long-term memory in the dorsal hippocampus. Together findings suggest that consistent intermittent exercise persistently enables hippocampal-dependent long-term memory. Understanding the optimal parameters for persistent cognitive function and the mechanisms mediating persistent effects will aid in therapeutic pursuits investigating the mitigation of cognitive ailments.

The benefits of exercise on aging: focus on muscle biomarkers.

The focus on maintaining health and vitality (e.g., good healthspan) in later life has become increasingly important as the world's population is getting older. In the last decade, advances in aging research have identified biomarkers like DNA methylation (DNAm) and gene expression, offering insights into both chronological and biological aging. This understanding opens up possibilities for interventions that can slow down molecular aspects of the aging process. Exploring the impact of exercise on these biomarkers in human skeletal muscle (a critical tissue for metabolism, thermogenesis and movement) reveals its potential to foster healthier aging.

Perceived benefits and barriers to exercise and associated factors among Zimbabwean undergraduate students: a cross-sectional study.

Despite the well-documented benefits of regular physical activity (PA), many university students are physically inactive. Personal, socio-economic, and environmental factors predict PA engagement behaviours in university students. There is a need to understand context-specific perceived barriers and benefits to exercise engagement and physical activity levels amongst university students from low-income settings. This study primarily evaluated the barriers and facilitators to PA engagement in Zimbabwean undergraduate students. We also assessed the correlates of perceived barriers and benefits to PA engagement, risk of common mental disorders (CMDs) and health-related quality of life (HRQoL). We used a cross-sectional study to recruit 465 university undergraduate students. The Exercise Benefits and Barriers Scale, International Physical Activity Questionnaire (IPAQ), Shona Symptoms Questionnaire (SSQ-8) and EuroQol 5 Dimension (EQ5D-5l) were used to measure barriers and facilitators, physical activity level, risk of depression and anxiety and HRQoL, respectively. Data were analysed through descriptive statistics and logistic regression. Most participants were male (58.5%) with a mean age of 21.7 (SD 1.6) years. Majority of the participants were first year students (37.2%), consumed alcohol (66.5%), did not smoke (88.2%) and had a normal BMI (64.7%). The prevalence of low PA levels was 17.4%, with 33.5% of students at risk of CMDs. The most perceived benefits were in the physical performance (e.g., exercise improves my level of physical fitness) and life enhancement (e.g., exercise improves my self-concept) domains, while the most perceived barriers were lack of exercise infrastructure (e.g., exercise facilities do not have convenient schedules) and physical exertion (e.g., exercise tires me). Food insecurity (AOR 2.51: 95% CI 1.62-3.88) and the risk of CMDs (AOR 0.49: 95% CI 0.32-0.76) were associated with increased odds of experiencing barriers to exercise. Not using substances (AOR = 2.14: 95% CI 1.11-4.14) and a higher self-rated HRQoL (AOR 24.34: 95% CI 1.77-335.13) were associated with increased odds of a high perception of exercise benefits. Improving access to community and on-campus exercise facilities and campus-wide health promotional interventions is necessary to enhance PA amongst university students.

Systemic and tissue-specific spexin response to acute treadmill exercise in rats

Spexin (SPX) is a 14-amino-acid peptide that plays an important role in the regulation of metabolism and energy homeostasis. It is well known that a variety of bioactive molecules released into the circulation by organs and tissues in response to acute and chronic exercise, known as exerkines, mediate the benefits of exercise by improving metabolic health. However, it is unclear whether acute exercise affects SPX levels in the circulation and peripheral tissues. This study aimed to determine whether acute treadmill exercise induces plasma SPX levels, as well as mRNA expression and immunostaining of SPX in skeletal muscle, adipose tissue, and liver. Male Sprague Dawley rats were divided into sedentary and acute exercise groups. Plasma, soleus (SOL), extensor digitorum longus (EDL), adipose tissue, and liver samples were collected at six time points (0, 1, 3, 6, 12, and 24 h) following 60 min of acute treadmill exercise at a speed of 25 m/min and 0 % grade. Acute exercise increased plasma SPX levels and induced mRNA expression of Spx in the SOL, EDL, and liver. Immunohistochemical analysis demonstrated that acute exercise led to a decrease in SPX immunostaining in the liver. Taken together, these findings suggest that SPX increases in response to acute exercise as a potential exerkine candidate, and the liver may be one of the sources of acute exercise-induced plasma SPX levels in rats. However, a comprehensive analysis is needed to fully elucidate the systemic response of SPX to acute exercise, as well as the tissue from which SPX is secreted.

Does it need an app? – Differences between app-guided breathing and natural relaxation in adolescents after acute stress

A key component of stress management and biofeedback training is the use of relaxation exercises, such as slow/deep breathing (6 breaths/minute) in heart coherence exercises (HCEs). Breathing exercises are also increasingly being integrated into smartphones as part of health apps, though their effectiveness in adolescents after acute stress has rarely been validated scientifically. The aim of the current study was to investigate the effectiveness of an app-guided HCE (n = 36) after an acute stress situation (Trier Social Stress Test) compared with natural relaxation (n = 37), among healthy adolescents (aged 11–17 years). Endocrine, autonomic, and psychological stress parameters (cortisol, alpha-amylase, heart rate, heart rate variability, mood) were examined in 73 adolescents (46 female, 27 male; Mage = 13.86, SDage = 1.87). Significant group differences were found in heart rate variability, with higher values in the low frequency band and low-to-high frequency ratio for the HCE condition, possibly indicating improved physiological functions through the stimulation of vagal tone and baroreflex. The use of a general breathing technique (natural and app-guided) also resulted in stronger relaxation reactions in cortisol when controlling for the previous stronger stress reactivity. On the other hand, app-guided slow breathing without a long training may be experienced as more uncomfortable during relaxation. The integration of breathing exercises in health apps for adolescents appears to be useful, offering a helpful and low-threshold coping/relaxation strategy during acute stress situations. Further studies should examine the benefits of app-guided breathing exercises in both psychiatric samples and the general population across a wide age range.

Abstract Tu076: N4-acetylcytidine-regulated Cardiomyocyte Ferroptosis Mediates Cardiac Benefits of Exercise in Aging

Introduction: Advanced age is a major risk factor for heart diseases. Exercise training has emerged as an effective intervention to improve functional outcomes in age-related cardiac dysfunction. N-acetyltransferase (NAT10), the only known N4-acetylcytidine (ac4C) ‘writer’ enzyme, has recently been implicated in heart failure. However, the role of NAT10 in cardiac aging and the cardiac benefits of exercise on age-related cardiac dysfunction are unclear. Hypothesis: NAT10 is necessary and sufficient for cardiac benefits of exercise in aging. Methods: Ten-week-old (young) or twenty-month-old (aged) mice received sedentary (Sed) or voluntary wheel running (Run) for eight weeks. AAV9 encoding cardiac troponin-T-driven NAT10 was tail vein-injected to overexpress NAT10 in cardiomyocytes (CMs). Results: Compared with young mice, aged mice exhibited increased E/e’ (Young: -14.68±1.09 vs Aged: -20.16±1.61, n=8, p=0.03) and decreased global longitudinal strain (GLS, Young: -20.04±1.47 vs Aged: -15.88±0.84, n=8, p=0.04) with preserved ejection fraction. Aged hearts also displayed increased ferroptosis (reduced GPX4 and FSP1, p&lt;0.05 vs Sed) and senescence (increased gene expression of p16, p21, and PAI, all p&lt;0.05). In aged mice, running improved diastolic function (E/e’, Sed: -20.16±1.61 vs Run: -15.4±1.06, n=8, p=0.04; GLS, Sed: -15.88±0.84 vs Run: -20.66±1.02, n=8, p=0.02), reduced cardiac ferroptosis (increased GPX4 and FSP1, p&lt;0.05 vs Sed), and decreased senescence gene expression. Cardiac NAT10 was downregulated in aged mice and was upregulated by exercise (all p&lt;0.05). In aged mice, AAV9 injection for eight weeks led to ~6-fold increase in cardiac NAT10, resulting in reduced E/e’ (AAV9-NAT10: -22.67±1.03 vs Control: -26.33±1.12, n=7, p=0.03) and increased GLS (AAV9-NAT10: -19.23±0.93 vs Control: -15.26±1.01, n=7, p=0.04) as well as reduced senescence gene expression (reduced p16, p21, and PAI, p&lt;0.05 vs AAV9-control). Mechanistically, NAT10 functioned by increasing ferritin ac4C deposition and promoting its translation, thereby inhibiting CM ferroptosis. Conclusions: NAT10 regulates cardiac aging through ferritin, and it mediates cardiac benefits of exercise in aging. NAT10 is a promising therapeutic target for combating cardiac aging.

Lifestyle Empowerment for Alzheimer's Prevention Prescribed by Physicians: Methods and Adaptations to COVID-19.

The health care system is insufficiently capitalizing on the benefits of physical exercise in America's aging population. Few tools exist to help clinicians incorporate physical activity into their clinical care, while barriers limit older adults from initiating and maintaining exercise programs. The Lifestyle Empowerment for Alzheimer's Prevention (LEAP! Rx) Program has been designed to support providers and participants in lifestyle change. LEAP! Rx uses two forms of participant enrollment: physician referrals through electronic health records and self-referrals to test the efficacy of delivering a community-based exercise and healthy lifestyle program to older adults. After referral into the program, participants are randomized to receive the LEAP! Rx Program or are placed in a standard-of-care group to receive the program later. The LEAP! Rx program consists of a personalized and structured exercise program, lifestyle education, and mobile health monitoring. This includes a 12-week Empowerment phase with coaching and supervised exercise training, followed by a 40-week Lifestyle phase with intermittent supervised exercise and coaching. Lifestyle education includes monthly, evidence-based classes on optimal aging. The evaluation of LEAP! Rx focuses on 1) the assessment of implementation and scalability of the LEAP!Rx Program for clinicians and patients 2) the effect of the LEAP! Rx Program on cardiorespiratory fitness, 3) the impact of the LEAP! Rx Program on secondary intervention outcome measures of chronic disease risk factors, including insulin resistance, body composition, and lipids. If successful, this study's findings could advance future healthcare practices, providing a new and practical approach to aging and chronic disease prevention.