bluuebunny/crossref_metadata_2025_split huggingface dataset:
SKELETAL MUSCLE OXIDATIVE CAPACITY AND LIFE COURSE PHYSICAL ACTIVITY IN PARTICIPANTS OF THE BLSA
Authors: Moore Ann Zenobia , Tian Teresa , Simonsick Eleanor , Ferrucci Luigi 
Published: January 2025

Abstract
Physical activity has been associated with measures of mitochondrial quality and mitochondrial dysfunction and is connected to many aging processes. However, most studies relating physical activity to mitochondrial measures only capture physical activity over a limited period. The impact of engaging in physical activity across the life course on mitochondrial function has not been fully characterized. Here, in participants of the Baltimore Longitudinal Study of Aging we evaluate the association between a summary measure of life course physical activity (LCPA) and mitochondrial oxidative capacity, represented by postexercise phosphocreatine recovery rate (kPCr) in the quadriceps measured through 31P magnetic resonance spectroscopy. The study sample included 416 participants (43.5% male) with complete data. LCPA, derived from a physical activity history questionnaire by ranking participants’ sequences of reported activity intensity, starting with the current decade and ending with the response for physical activity during adolescence, was statistically significantly associated with kPCr (p &lt;.01) in multivariable linear regression models adjusted for demographic characteristics and indicators of current physical activity. The positive association between LCPA and kPCr independent of current physical activity suggests that mitochondrial oxidative capacity in later life may have a cumulative dimension. Our observations demonstrate that even limited information on prior activity may be informative for understanding mitochondrial variability and highlight the importance of exercise across the life course.
THE ROLE OF AGE AND EXERCISE HISTORY IN AFFECTIVE RESPONSE TO ACUTE EXERCISE: PRELIMINARY RESULTS
Authors: Stojanovic Marta , Rushing Baylie , Love Madeleine , Morris John , Head Denise 
Published: January 2025

Abstract
A more positive affective response to acute exercise has been linked to greater physical activity levels. Older adults might experience increased physiological symptoms (e.g., shallow breathing) during acute exercise and subsequently less positive affect post-exercise. Additionally, sedentary individuals were shown to have a more negative affective response. The goals of the study were to examine whether age and exercise history impact the affective response to exercise and its association with overall physical activity levels. Cognitively normal individuals from the Knight ADRC Adult Children Study (n=65; age range 44-85 years) completed an acute bout of moderate-intensity exercise. Affect was measured at baseline, immediately after, 15 minutes, and 30 minutes post-exercise. Participants also completed one week of actigraphy, which provided an objective estimate of their physical activity levels, and a self-report questionnaire about their exercise history over the past 10 years. While positive affect increased immediately post-exercise similarly across age (p=0.103), older individuals showed a quicker return to baseline (p=0.012). Age did not moderate the association between affect and physical activity (p&gt;0.119). Exercise history did not predict affective response (p’s&gt;0.847), however, individuals with greater exercise history showed a stronger association between a more positive affective response and greater physical activity levels (p&lt; 0.001). These results suggest that older individuals might experience a less positive affective response to moderate-intensity exercise. Furthermore, exercise history might be a relevant moderator of the link between affective response and physical activity. Future studies should use a larger sample size and consider additional moderators, including cardiovascular health and sleep.
AGE-RELATED DIFFERENCES IN EVERYDAY SOLITUDE SEEKING WHEN TIME WITH OTHERS FEELS LESS DESIRABLE
Authors: Choi Yoonseok , Kim Hansol , Hoppmann Christiane 
Published: January 2025

Abstract
People spend a significant amount of time by themselves. This project seeks to investigate one potential motive underlying solitude seeking in daily life, namely, to disengage from undesirable social interactions. Social relationships and interactions often involve obligations to others, particularly so in collectivistic cultures; meeting obligations can be taxing when social demands exceed one’s capacity. Seeking solitude may be a way to reduce obligation-related social strains. Additionally, there may be age-related differences in motive strength considering age-related differences in social relationship structures, with higher obligatory demands placed on younger adults (e.g., work, childcare). To examine these ideas, we used 610 repeated daily life assessments (2 times per day for 10 days) collected from an adult lifespan sample of 51 Koreans (Age range: 22-71 years; 65% female, 98% some postsecondary education). Everyday assessments of preference for solitude were predicted by the extent to which previous-day social interactions were deemed voluntary and by their interaction with age. Results based on multilevel modeling showed that while previous-day reductions in voluntary social interaction ratings were not significantly associated with next-day increases in preference for solitude, those who reported generally lower levels of voluntary social interactions showed generally higher preferences for solitude (OR = 0.70, p =.001). Age moderation was significant in the predicted direction with younger age being associated with higher preference for solitude from lower voluntary social interactions (OR = 1.02, p =.002). These results highlight a possibly restorative function of solitude that plays out differently across the adult lifespan.
DOES THE SENSE OF MATTERING BUFFER DEPRESSIVE SYMPTOMS? EVIDENCE FROM THE CHAT PROGRAM SURVEY
Authors: Yan Mengzhao , Navarro Sheila Salinas , Lomeli Sindy , Wilber Kathleen 
Published: January 2025

Abstract
Sense of mattering refers to a feeling of being valued and important to others. Recognized as a unique construct and a form of psychological capital, mattering has profound implications on health and well-being. Previous research has demonstrated the protective effect of high level of mattering against mental health issues. However, this construct remains understudied in older adults. Employing the baseline survey (N = 2,385, average age = 71) of the “Connecting, Health, Aging, & Technology (CHAT) Program,” an initiative to bridge the digital divide for underserved community-dwelling older adults launched by the California Department of Aging, we examined the association between sense of mattering and depressive symptoms. Older adult participants identified by local area agencies on aging, were assessed and screened into the program. The relationship between participants’ scores on mattering (range 4 to 20) and having depressive symptoms was examined using multivariate logistic regression. After controlling for sociodemographic factors (i.e., age, gender, race/ethnicity, education, marital status), self-rated health, and anxiety, each unit higher level of mattering was associated with 12% lower odds of having depressive symptoms (OR = 0.88, 95% CI: 0.85 – 0.92). The five-item general mattering scale (Marcus, 1991) showed adequate internal consistency in older adults (Cronbach’s α = 0.80). Our findings highlight the importance of mattering to mental health. We recommend that future policies and programs aimed at improving older adults’ health and well-being (e.g., age-friendly movements, combating ageism, interventions) take boosting sense of mattering into account.
OLDER ADULTS’ INTERACTIONS ON SHORT-FORM VIDEO PLATFORMS ENHANCE THEIR SOCIAL ADAPTATION: A CHAIN MEDIATION MODEL
Authors: Wu Jingxuan , Peng Huamao 
Published: January 2025

Abstract

Background
An increasing number of older adults are embracing short-form video platforms like TikTok. Beyond passive watching, how active engagement by older adults on short-form video platforms influences their social adaptation deserves significant attention. Objective: Explore the effect of interactions on short-form video platforms (e.g., liking, commenting, sharing, and rewarding, etc.) on social adaptation among older adults and examine the chain mediating roles of basic psychological needs satisfaction (competence, autonomy, and relatedness) and attitudes towards self ageing to reveal the underlying psychological mechanism.

Method
Two thousand older adults (aged 55–85 years old, Mage = 60.20±3.88) completed the Social Adaptation Self-evaluation Scale, the Short-form Video Interactive Behavior Questionnaire, the Basic Psychological Needs Scale, and the Attitudes to Ageing Questionnaire. PROCESS Model 6 was used to test a chain multiple mediation model.

Results
Frequent short-form video interactions of older adults not only directly influence their social adaptation level positively but also indirectly contribute to its improvement through more satisfaction of basic psychological needs and greater positive attitudes towards self ageing.

Discussion
More interactions on short-form videos platforms contribute to the satisfaction of older adults’ basic psychological needs. This, in turn, encourages a comparatively positive attitude towards ageing, and ultimately bolstering adaptability across various aspects of later life. This insight motivates older adults to immerse themselves more deeply and actively participate in short-form videos, utilizing the new media application as an emerging space for social engagement, thereby accumulating psychosocial well-being to achieve active and successful aging.
THE PSYCHOSOCIAL EFFECTS OF EXPRESSIVE ARTS THERAPY ON PATIENTS WITH AGE-RELATED MACULAR DEGENERATION
Authors: Ho Rainbow Tin Hung , Lo Temmy L T , Chan Wai Chi , Cheong Allen M Y , Li Qing , Wan Adrian H Y 
Published: January 2025

Abstract
Age-related macular degeneration (AMD) is the leading cause of central vision loss in older adults. With irreversible vision loss, patients with AMD also experience psychosocial distress, which is given less attention. This study aims to evaluate the psychosocial effects of Expressive arts therapy (EXAT) on patients with AMD. 33 participants aged 51–74 were randomized into the EXAT (N=20) and control (N=13) group. Participants in the EXAT group received eight weekly 1.5-hour sessions, whereas participants in the control group maintained their usual routine. The psychosocial condition of participants was assessed at baseline (T0) and post-intervention for the EXAT group or 8-week follow-up for the control group (T1). Mann-Whitney U Tests revealed that participants in the EXAT group had significantly higher social support and quality of life in mental health than those in the control group at T0 (Z = -3.231 - -2.093). It also showed that the EXAT group had significantly higher resilience, depressive symptoms, psychosocial adaptation, social support, and quality of life in the ocular pain aspect compared to the control group at T1 (Z = -2.838 - -2.157). Wilcoxon Signed-Ranks Tests found significant improvement in the EXAT group in resilience, psychosocial adaptation in anxiety/depression aspect, and quality of life in role difficulties aspect (Z = -2.255 - -2.017), with no significant changes in the control group across the two times. The results demonstrated that EXAT can potentially enhance patients’ psychosocial well-being with AMD. A larger sample size and follow-up assessments are needed for further investigation.
USING THE INTERPRETIVE FRAMEWORK TO CREATE AND DELIVER MEANINGFUL GROUP ACTIVITIES FOR OLDER ADULTS
Authors: Tulloh Anna , Westmore Megan , Anderson Keith , Mauldin Rebecca 
Published: January 2025

Abstract
Activity programming is recognized as a vital component in supporting engagement and improving quality of life for older adults. Despite the ubiquity of such programs and a plethora of research exploring both why meaningful activities are important for older adults and what makes an activity meaningful, current guidelines for activity development fail to offer a standardized framework. Without a clear framework for developing meaningful group activities, a potential for inconsistencies in activity appeal, quality, and effectiveness exists. This paper suggests an innovative solution by drawing on the field of interpretation—a discipline traditionally associated with environmental, historical, and cultural education. Interpretation provides principles and practical guidance for creating engaging, relevant, enjoyable, and personalized experiences for a wide range of audiences. In this paper, we present a brief history of interpretation and describe its principles, applications, and the “interpretative equation.” Using data from field notes collected during a study of an online nature-based group activity in an assisted living community, we describe how the program was developed, implemented and adapted in alignment with the elements of the interpretive equation. This equation combines activity-related knowledge (e.g. gaining a deeper understanding of the environment presented online), an understanding of participants (e.g. increasing knowledge of individual’s dementia-related support needs), and appropriate techniques (e.g., incorporating reminiscence) to achieve an interpretive “opportunity” (i.e., a meaningful activity in our formulation). Our results demonstrate how interpretation can be a powerful tool in bridging the gap between the theory and practice of meaningful activity development.
FLOURISHCARE MODEL OF INTEGRATED CARE: THE VALIDATION OF THE FLOURISH INDEX-REVISED (FI-R)
Authors: Faul Anna , Cotton Samantha , Yankeelov Pamela , Gordon Barbara 
Published: January 2025

Abstract
The FlourishCare (FC) Model for geriatric primary care brings professional disciplines across the continuum of care together to provide quality integrated age-friendly healthcare to older adults with multiple chronic conditions (MCCs). This integrated care model is backed by research demonstrating the efficacy of a comprehensive approach to healthcare by ensuring that services are well-coordinated across the entire spectrum of a person’s health needs. This study validates the Flourish Index–Revised (FI-R), a tool evaluating integrated care models. The FI-R uses 25 quality-of-care indicators and 7 contextual community indicators. The FI-R was validated with Categorial Principal Components Analysis (CATPCA) using a sample of 949 patients 50+ who were mostly female (73%), Non-Hispanic White (70%), living in urban areas (90%), and married (29%), single (22%) or divorced (19%). The mean age was 73.46 (SD=10.86) and mean years of education was 14.30 (SD=2.14). CATPCA showed a four-dimensional structure of biological, psychological, and two social determinants of health (SDOH) subdomains: health behaviors and community. Final selection of indicators was based on total variance accounted for &gt;0.30, absolute values of item loadings &gt;0.45, and not having cross loadings &gt;0.45 on two factors. Internal consistency (Cronbach Alpha) for the determinants were: biological=0.75, psychological=0.76, SDOH: community=0.70, SDOH: Health Behaviors=0.50 and total FI-R=0.95. Sensitivity to change was shown for the total FI-R, psychological determinants, and SDOH:health behaviors but not for biological determinants. The validation of the FI-R shows promise for its usability to evaluate integrated health care models using existing measures in electronic health systems.
EXPLORING THE ASSOCIATIONS BETWEEN DAILY SLEEP AND THE PITTSBURGH SLEEP QUALITY INDEX (PSQI) AMONG OLDER ADULTS
Authors: Chai Hye Won , Gamaldo Alyssa , Gamaldo Charlene , Stephan Abigail , Phillips Christine , Ross Lesley 
Published: January 2025

Abstract
While the Pittsburgh Sleep Quality Index (PSQI) is widely used in sleep research, it is based on adults’ retrospective memory which may be subject to recall bias. Daily measures of sleep using smartphones may supplement PSQI by providing a more ecologically valid snapshot of respondents’ sleep patterns. However, there is a limited understanding about whether and how daily reports of sleep (over 14 days) map onto PSQI scores among older adults. This study aims to explore the associations between diverse measures of daily sleep and PSQI in later life. We used baseline survey and diary data from the Everyday Function Intervention Trial on 95 older adults (age range: 60-88). Daily measures of sleep included overall means and day-to-day variations in sleep quality, difficulty falling asleep, difficulty staying asleep, and feeling refreshed after wake across two weeks. Results revealed that higher overall mean levels of difficulty falling asleep was associated with higher total PSQI score (i.e., worse sleep). Higher overall mean levels of sleep quality were associated with several PSQI subscales (less sleep disturbance, better sleep efficiency, and higher subjective quality of sleep). Higher day-to-day variations in sleep quality was associated with better PSQI sleep efficiency and higher variations in feeling refreshed after wake was associated with longer PSQI sleep latency. These results suggest that daily measures of sleep may be tapping onto different dimensions of PSQI and further highlight the need to incorporate diverse measures of sleep to have a more holistic understanding of sleep patterns in later life.
EXPLORING THE EFFECTS OF AN EIGHT-WEEK LIFESTYLE INTERVENTION ON REST-ACTIVITY RHYTHM IN ADULTS
Authors: Zhang Meina , Voss Michelle , Carr Lucas , Whitaker Kara , Springer Jenna , Moon Chooza 
Published: January 2025

Abstract
Rest activity rhythm (RAR) describes the pattern of physical activity and sleep in 24 hours. Disruptions in RAR have been associated with various age-related chronic conditions, including sleep disorders, depression, and increased risk for cognitive decline. Few studies examined if RAR changes from intervention that includes both physical activity and sleep components. This study investigated the effects of an 8-week lifestyle intervention targeting the full 24-hour activity profile (physical activity, sedentary behavior, and sleep) on RAR. Participants engaged in up to five sessions with a student health coach, viewed three health education videos targeting physical activity, sedentary behavior, and sleep, and received an Acttrust2 activity monitor. A cohort of 26 participants (mean age = 49.3 years, SD = 11.1; 73.1% female) was monitored using wrist-worn Acttrust2 devices for one week pre- and post-intervention to observe changes in RAR. RAR parameters were analyzed using cosinor approach, such as amplitude (maximum activity level), mesor (mean activity level), pseudo-F-statistic (the robustness of RAR), and acrophase (peak activity time). The intervention showed mixed effects on RAR parameters. While not statistically significant, positive changes were observed in amplitude (Cohen’s d=0.24) and mesor (Cohen’s d=0.12). Conversely, the pseudo-F-statistic (Cohen’s d = -0.002) and acrophase (Cohen’s d=-0.02) remained stable post-intervention. Although statistically significant changes in RAR parameters were not observed, encouraging trends suggest the potential for the intervention to influence maximum and mean physical activity level. These findings contribute to our understanding of lifestyle interventions in adults and highlight areas for further research and intervention refinement.
SLEEP AND CORTISOL IMPACT COGNITIVE OUTCOMES IN MIDLIFE HISPANIC/LATINE ADULTS AT RISK FOR ALZHEIMER’S DISEASE
Authors: Burke Shanna , Gonzales Samantha , Grudzien Adrienne , Cambara Celine , Briceno Alexandra , Jimenez Daniel , Scott Stephanie , Martinez Sabrina Sales 
Published: January 2025

Abstract
Sleep disturbance has been associated with an increased risk of Alzheimer’s disease (AD). Repeated stressors, including ongoing sleep disturbance, trigger persistent increases in glucocorticoid levels, which affect brain function. Various cognitive domains appear to be significantly impacted by sleep. This study examined the effect of sleep and cortisol levels on cognitive test outcomes. Hispanic/Latine adults (n=39; mean age 53 yrs (SD: 5.12)) with first-degree relatives with AD were recruited from Miami-Dade and Broward counties, FL. Cortisol was measured from saliva obtained three times in one day (waking, 30 minutes post-waking, and bedtime). Cognition was measured using the NACC Neuropsychological Battery (UDS3). Sleep was measured using wrist-worn actigraphy (ActiGraph wGT3X-BT). Multiple linear regression was performed to examine correlations between sleep, cognition, and cortisol. Average sleep duration was 6.40 (SD = 1.37) hours. Average efficiency was 92% (SD = 3%). Average sleep fragmentation was 27.79 (SD = 9.59) minutes post-sleep onset. Sleep efficiency was significantly associated with executive attention after adjusting for education and income (β = -18.73, p =.046). Sleep fragmentation was significantly associated with immediate memory (β = -.045, p =.0181). The effect of cortisol at waking on episodic memory delayed was dependent on sleep efficiency (β = 211.004, p =.031). The interaction between sleep duration and cortisol at bedtime was significantly associated with nonverbal memory (β =10.37, p =.023). The identification of modifiable risk factors for AD, including poor sleep and increased stress, will inform the development of intervention efforts to prevent or delay AD onset.
SLEEP ARCHITECTURE IN OLDER ADULT INTENSIVE CARE UNIT SURVIVORS
Authors: Carmiol-Rodriguez Priscilla , Elias Maya 
Published: January 2025

Abstract
Sleep is highly fragmented in older adults recovering from critical illness, despite discharge out of an intensive care unit (ICU). The aim of this study was to measure nighttime sleep architecture in older ICU survivors after ICU discharge to a post-ICU inpatient unit. The sample consisted of 13 older ICU survivors who were functionally independent prior to hospitalization, mechanically ventilated in ICU, and enrolled within 24-48 hours after ICU discharge at an academic medical center. Sleep architecture was measured via a portable polysomnography sleep monitoring device (Sleep Profiler) between 10:00 PM-6:00 AM over two consecutive nights. Data were analyzed using descriptive statistics, and the one-sample Wilcoxon signed rank test evaluated the differences between the time spent in each sleep stage in our sample of older ICU survivors versus the established norms for healthy older adults. Among our sample, participants were awake approximately 53.4% (interquartile range [IQR]: 45.0) of nighttime hours. The median percentages of the sleep stages were: stage N1 = 2.1% (IQR: 6.65); stage N2 = 26.35% (IQR: 41.63); stage N3 = 0.8% (IQR: 6.33); and stage REM = 0.15% (IQR: 7.6). Results indicated that the median percentages of the sleep stages N1, N2, N3, and REM were significantly lower than the expected reference values for each sleep parameter (p &lt; 0.05). Therefore, older ICU survivors may experience insufficient slow wave sleep and REM sleep, which are vital for recovery from critical illness. Further interdisciplinary research is needed to optimize sleep in the post-ICU inpatient setting.