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1.
J Genet Psychol ; 185(4): 282-296, 2024.
Article in English | MEDLINE | ID: mdl-38214501

ABSTRACT

Adults who are beginning or returning to finish a degree program at midlife face different challenges than do their younger counterparts whose college experience begins at 18 years of age. We suspect that internalized ageism, defined as self-directed ageist attitudes and behaviors, may hinder nontraditional age students along with the experience of individual and institutional ageism. To evaluate this notion, we assessed the prevalence of self-reported positive and negative ageist behaviors in 205 students (M = 21.95, SD = 7.28, age range: 16-52 years) and 29 faculty (M = 49.55, SD = 11.07, age range: 33-71 years) in a community college in southeast Louisiana in the spring of 2019. All completed the Relating to Older People Evaluation (ROPE; Cherry & Palmore, 2008) and an open-ended question on how they viewed middle-aged students. Quantitative analyses indicated that students' ROPE scores exceeded those of the faculty and more positive than negative ageist behaviors were reported. Qualitative analyses revealed mostly positive expectations of middle-aged students among narrative responses to the open-ended question. As a follow-up, 10 nontraditional age students were individually interviewed in person to obtain an in-depth assessment of their community college experience. Strong evidence of internalized, individual, and institutional ageism were evident in their responses. Their narratives also revealed atypical life experiences and rich details of faculty-level and institutional-level policies that supported or hindered their academic progress. Implications of these data for addressing ageism on multiple levels in higher education are considered.


Subject(s)
Ageism , Students , Humans , Ageism/psychology , Male , Middle Aged , Female , Adult , Young Adult , Adolescent , Students/psychology , Universities , Aged , Louisiana
2.
Curr Psychol ; : 1-12, 2023 May 03.
Article in English | MEDLINE | ID: mdl-37359693

ABSTRACT

Hurricane Laura made landfall in southwestern Louisiana in August 2020 while the world was several months into the COVID-19 pandemic. In the present research, we examined pandemic precautionary behaviors in a sample of adults who varied in exposure and damage due to Hurricane Laura, a destructive Category 4 hurricane. A total of 127 participants responded to an online survey that assessed pandemic worry and precautionary behaviors, hurricane exposure and damage, and health-related quality of life. We found that Hurricane Laura victims neglected pandemic precautionary behaviors at significantly higher levels in the weeks immediately following Hurricane Laura than did indirectly impacted control participants, although the two comparison groups did not differ in COVID-19 worry or adherence to precautionary pandemic behavior 14-22 months after Hurricane Laura made landfall. Older age was negatively correlated with COVID-19 worry prior to Hurricane Laura, which was unexpected given that older people in general were more vulnerable to COVID-19 by their membership in a high-risk group. Future directions for research on post-disaster vulnerabilities during a global pandemic are discussed.

3.
Aging Ment Health ; 27(12): 2446-2456, 2023.
Article in English | MEDLINE | ID: mdl-36995263

ABSTRACT

OBJECTIVES: Severe weather events have mental health consequences for survivors that may change over time. We assessed post-flood mental health longitudinally in three groups of mostly middle-aged and older adults who varied in current and prior severe weather experiences. METHOD: Predictors of central interest were age, perceived social support, state hope (including agency and pathways), recovery stressors, and prior lifetime trauma. Criterion variables included symptoms of depression, post-traumatic stress disorder (PTSD), and worry. RESULTS: Analyses of variance yielded significant Disaster Exposure Group x Wave interactions for depression and PTSD symptoms. Those with flooded homes and properties had elevated symptoms at Wave 1 which were reduced at Wave 2. Older age was associated with fewer symptoms of depression, PTSD, and worry. Recovery stressors and lifetime trauma predicted more PTSD symptoms. Greater agency predicted less PTSD and depression symptoms, whereas pathways predicted less worry. CONCLUSION: These data show that mental health symptoms may decrease over time for those directly impacted by severe flooding. State hope appears to contribute to better mental health after exposure to a devastating flood. Implications for understanding the dynamic relationships among risk variables and positive factors that promote post-disaster mental health in the years after a flood are considered.

4.
Article in English | MEDLINE | ID: mdl-35510295

ABSTRACT

Physical activity has well-known benefits for older adults' mood and cognitive functioning; however, it is not clear whether risk factors for cardiovascular disease (CVD) affect the relationships of physical activity with these health outcomes among diverse older adults. This study investigated the impact of CVD risk burden on the relationships among self-reported physical activity, mood, and cognitive functioning in a diverse sample of 62 adults age 45 and older. We found that higher physical activity was associated with better attention and verbal working memory at lower CVD risk, but with worse attention and verbal working memory at higher CVD risk levels. Thus, higher CVD risk might limit the effectiveness of exercise interventions for mood and cognitive functioning. Future studies are needed to further clarify individual differences that impact the relationships among physical activity, CVD risk, and cognitive outcomes.


Subject(s)
Cardiovascular Diseases , Humans , Aged , Cardiovascular Diseases/prevention & control , Risk Factors , Cognition , Memory, Short-Term , Exercise , Heart Disease Risk Factors
5.
Int J Aging Hum Dev ; 96(3): 285-311, 2023 04.
Article in English | MEDLINE | ID: mdl-35350912

ABSTRACT

In this study, we examined religiosity and social support as predictors of resilience after a devastating flood. Three flood exposure groups of primarily middle-aged and older adults were compared: (1) non-flooded adults as controls, (2) once-flooded adults with structural damage to homes and property in the 2016 flood, and (3) twice-flooded adults who had relocated inland because of prior catastrophic losses in the 2005 Hurricanes Katrina and Rita and then flooded again in 2016. Resilience was assessed using the Connor-Davidson Resilience Scale (CD-RISC). Correlation analyses confirmed that older age was correlated with higher religiosity, charitable work done for others, and resilience. Regression analyses indicated that religious beliefs and coping, social support, and charitable work done for others were associated with higher levels of resilience, whereas flood damage was unrelated to resilience. Implications for current views on post-disaster adversity and resilience in later life are discussed.


Subject(s)
Disasters , Resilience, Psychological , Humans , Middle Aged , Aged , Floods , Adaptation, Psychological , Social Support , Religion
6.
J Genet Psychol ; 184(2): 145-162, 2023.
Article in English | MEDLINE | ID: mdl-36300651

ABSTRACT

Substance use is a perennial public health concern with associated health risks and economic impacts on society. In this article, we present a selective review of the epidemiological and clinical literatures on alcohol and substance use from a lifespan developmental perspective. We compare and contrast risk factors for the initiation of use and the development of a substance use disorder in adolescence, young adulthood, middle-age and later life. During adolescence, alcohol use experimentation is at its peak. Specific risk factors have been identified including trauma and parenting style that can increase the risk of substance use for teenagers. Emerging adults and college students are likely to experiment with other substances in addition to alcohol such as nicotine, marijuana, cocaine, and prescription medication such as Adderall. Middle-age and older adults with alcohol and substance use in their developmental histories may have an undiagnosed alcohol use disorder. Others will develop a late-onset substance use disorder in older age, possibly due to a dearth of social support, coping with bereavement, and medical complication. Based on Social Cognitive Theory, the roles of expectancies and self-efficacy are hypothesized to impact substance use and the risk of substance use disorder across the lifespan. Implications of the present review for future research on age-specific risk factors in alcohol use in relation to underlying developmental processes are considered.


Subject(s)
Longevity , Substance-Related Disorders , Adolescent , Middle Aged , Humans , Young Adult , Adult , Aged , Substance-Related Disorders/epidemiology , Substance-Related Disorders/psychology , Risk Factors , Alcohol Drinking/epidemiology , Adaptation, Psychological
7.
Appl Neuropsychol Adult ; 29(4): 452-461, 2022.
Article in English | MEDLINE | ID: mdl-32466666

ABSTRACT

Driving simulators may be an effective means of assessing driving performance, however many are cost-prohibitive. The present pilot study examined whether a novel, cost-effective driving simulator (Assetto Corsa (AC)) may be useful in the evaluation of older adults' driving performance, and explore associations among various driving safety indicators. A community sample of older adults completed a battery of cognitive measures, several self-reported driving measures, and a novel driving simulator task (AC). Simple attention, executive functioning, and processing speed were associated with simulator performance variables. Lower self-rated driving safety was associated with slower simulated driving. Additionally, several cognitive domains were associated with perceptions about driving-related safety and driving-related legal repercussions (e.g., traffic tickets). Findings suggested that associations between cognitive tests with AC were less robust than those found in other simulator studies. Novel associations between cognitive performance and self-reported driving were identified; however, given the small sample size of this study, such associations should be explored further.


Subject(s)
Automobile Driving , Executive Function , Aged , Attention , Computer Simulation , Humans , Neuropsychological Tests , Pilot Projects
8.
Psychol Aging ; 36(5): 660-666, 2021 Aug.
Article in English | MEDLINE | ID: mdl-33856820

ABSTRACT

We examined the inoculation and stress sensitization explanations concerning mental health outcomes in 223 predominately middle-aged and older adults after a flood (M age = 49.6 years, SD = 17.7 years, range: 18-88 years). In multiple linear regression models, having flood damage was associated with higher levels of posttraumatic stress disorder (PTSD) and depressive symptoms, while social support was associated with fewer symptoms. Greater lifetime trauma and flood-related stress were associated with more symptoms of depression and PTSD, respectively. Older age was associated with more religious coping and fewer depressive and worry symptoms. Future directions for research on postdisaster vulnerabilities and resilience are discussed. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Subject(s)
Aging/psychology , Floods , Mental Health , Natural Disasters , Stress, Psychological , Adolescent , Adult , Aged , Aged, 80 and over , Anxiety/epidemiology , Depression/epidemiology , Female , Humans , Male , Mental Health/statistics & numerical data , Middle Aged , Religion and Psychology , Resilience, Psychological , Social Support , Stress Disorders, Post-Traumatic/epidemiology , Stress, Psychological/epidemiology , Young Adult
9.
J Gerontol A Biol Sci Med Sci ; 76(8): 1347-1355, 2021 07 13.
Article in English | MEDLINE | ID: mdl-33471059

ABSTRACT

Biological age captures some of the variance in life expectancy for which chronological age is not accountable, and it quantifies the heterogeneity in the presentation of the aging phenotype in various individuals. Among the many quantitative measures of biological age, the mathematically uncomplicated frailty/deficit index is simply the proportion of the total health deficits in various health items surveyed in different individuals. We used 3 different statistical methods that are popular in machine learning to select 17-28 health items that together are highly predictive of survival/mortality, from independent study cohorts. From the selected sets, we calculated frailty indexes and Klemera-Doubal's biological age estimates, and then compared their mortality prediction performance using Cox proportional hazards regression models. Our results indicate that the frailty index outperforms age and Klemera-Doubal's biological age estimates, especially among the oldest old who are most prone to biological aging-caused mortality. We also showed that a DNA methylation index, which was generated by applying the frailty/deficit index calculation method to 38 CpG sites that were selected using the same machine learning algorithms, can predict mortality even better than the best performing frailty index constructed from health, function, and blood chemistry.


Subject(s)
Aging/physiology , Algorithms , Frailty , Life Expectancy , Aged , Aged, 80 and over , DNA Methylation/genetics , Frailty/diagnosis , Frailty/genetics , Frailty/mortality , Genetic Heterogeneity , Health Status Indicators , Humans , Machine Learning , Nutrition Surveys/statistics & numerical data , Prognosis , Reproducibility of Results , United States
10.
J Genet Psychol ; 182(1): 31-46, 2021.
Article in English | MEDLINE | ID: mdl-33148137

ABSTRACT

In two experiments, we examined younger and older participants' appraisals of memory failures in fictitious characters portrayed as younger (in their 20's to 30's) or older (in their 60's to 70's) adults. Participants read vignettes where forgetful behavior had minor or more severe consequences for the target character (Experiment 1) or for the character and others in the social environment (Experiment 2). Participants rated potential causes of the forgetfulness and opinions concerning the target character's cognitive health. In Experiment 1, an age-based double standard was observed, where both age groups rated ability as a cause of forgetting more often for older than younger characters. Ratings of forgetfulness as a sign of mental difficulty, need for memory training, and professional evaluation were also higher for older compared to younger characters. In Experiment 2, the Attribution Type by Target Age interaction effect was replicated. Ability and effort contributed to the significance of the interaction, confirming the reliability and generalizability of the age-based double standard. Forgetfulness was rated as a sign of mental difficulty more often for the older than younger characters, replicating Experiment 1. In both experiments, the consequences of the forgetting had a large impact on the attribution and opinion ratings for younger and older forgetful characters. These data suggest that people of all ages evaluate forgetful characters in light of situational outcomes as well as ageist presumptions of cognitive frailty in later life.


Subject(s)
Memory Disorders/psychology , Adult , Aged , Aging/psychology , Female , Health Knowledge, Attitudes, Practice , Humans , Male , Middle Aged , Perception
11.
Br J Dev Psychol ; 39(2): 252-268, 2021 06.
Article in English | MEDLINE | ID: mdl-33001487

ABSTRACT

The authors used an analysis of individual differences to examine the role of executive control in strategic encoding and retrieval in verbal recall. Participants enrolled in the Louisiana Healthy Aging Study completed measures of working memory (WM), cognitive status, vocabulary, and free recall of words. Indices of clustering in free recall were calculated to permit inferences on strategic encoding and retrieval processes. We hypothesized that WM would be more strongly associated with strategic encoding and retrieval metrics than vocabulary based on the assumption that successful remembering requires executive control in WM. Regression analyses, together with a variance portioning procedure, confirmed that WM had comparable levels of unique and shared variance with the strategic encoding and retrieval metrics, and both exceeded vocabulary. Theoretical and clinical implications of these data are considered, with the suggestion of future research in lifespan samples as opposed to exclusively young adult or older adult samples.


Subject(s)
Memory, Short-Term , Mental Recall , Aged , Executive Function , Humans , Middle Aged , Neuropsychological Tests , Vocabulary , Young Adult
12.
Exp Aging Res ; 45(1): 28-40, 2019.
Article in English | MEDLINE | ID: mdl-30707652

ABSTRACT

Background/Study Context. Adaptation to normative age-related declines in memory is an important but understudied aspect of successful aging. The purpose of the present study was to shed new light on memory self-efficacy and beliefs about memory and aging as two integral aspects of adult cognition with relevance to successful aging. METHODS: Young (19 to 27 years) and community-dwelling older adults (60 to 94 years) from the Louisiana Healthy Aging Study (LHAS) completed an adapted Memory Functioning Questionnaire (MFQ) which includes a memory self-efficacy subscale, the Memory Controllability Inventory (MCI), and the Aging Concerns Scale (ACS). RESULTS: Nonagenarians' self-reported memory and beliefs about memory and aging were of central interest. We compared their responses to three younger reference groups to examine hypothesized differences in self-reported memory and beliefs about memory and aging in very late life. Results yielded age effects for most of the MFQ and MCI subscales demonstrating more positive subjective views about memory functioning and control over memory for the young adults. Correlation and regression analyses were conducted to isolate factors that may be associated with memory self-efficacy. Age, symptoms of depression, and memory control beliefs accounted for approximately half of the variance in memory self-efficacy ratings. CONCLUSION: These data indicate that although memory self-efficacy may be age sensitive, we detected no differences in subjective views across the three older groups. Implications for cognitive adaptability and successful aging are considered.


Subject(s)
Aging/psychology , Healthy Aging , Memory/physiology , Self Efficacy , Adult , Aged , Aged, 80 and over , Cognition , Female , Health Status , Humans , Individuality , Louisiana , Male , Middle Aged , Neuropsychological Tests , Socioeconomic Factors , Young Adult
13.
J Am Med Dir Assoc ; 20(1): 70-75.e2, 2019 01.
Article in English | MEDLINE | ID: mdl-30149984

ABSTRACT

OBJECTIVES: Body composition alterations occur during aging. The purpose of the present analysis was to explore the functional consequences of the overlap of sarcopenia and osteoporosis, and the potential role of insulin-like growth factor 1 (IGF1) in their development in the oldest old. SETTING AND PARTICIPANTS: Eighty-seven nonagenarians from the Louisiana Healthy Aging Study were included. MEASURES: The definition of sarcopenia was based on appendicular lean mass (ALM). Osteoporosis was diagnosed based on bone mineral density (BMD) T score. Four phenotypes were compared: (1) healthy body composition, that is, nonosteoporotic nonsarcopenic (CO, control group), (2) osteoporotic (O, low BMD T score), (3) sarcopenic (S, low ALM), and (4) osteosarcopenic (OS, low BMD T score and low ALM). Sex- and age-specific IGF1-Standard Deviation Scores (SDS) were calculated. The Continuous Scale-Physical Functional Performance (CS-PFP) test was performed. RESULTS: In OS men, IGF1-SDS values (-0.61 ±0.37 vs -0.04 ± 0.52, P = .02) were lower than those in CO males (control group), whereas IGF1-SDS were similar in the 4 body composition phenotypes in women. In men only, ALM was positively associated with IGF1-SDS values (P = .01) independent of age and C-reactive protein concentration. Regarding bone health, we found no association between IGF1-SDS values and BMD. IGF1-SDS was not associated with functional performance (CS-PFP) in men and women. CONCLUSIONS/IMPLICATIONS: IGF1 sensitivity in skeletal muscle and bone may differ by sex in the oldest old. IGF1 status did not appear to affect physical functionality. Determinants and clinical and functional characteristics of osteosarcopenia need to be further investigated in order to define conclusive diagnostic criteria.


Subject(s)
Body Composition , Geriatric Assessment , Insulin-Like Growth Factor I/metabolism , Osteoporosis/diagnosis , Sarcopenia/diagnosis , Aged, 80 and over , C-Reactive Protein/metabolism , Female , Frailty , Humans , Louisiana , Male , Phenotype , Polypharmacy , Serum Albumin/metabolism
14.
J Nurs Scholarsh ; 50(5): 492-501, 2018 09.
Article in English | MEDLINE | ID: mdl-30058284

ABSTRACT

PURPOSE: Multiple exposures to disaster are associated with high levels of stress and with long-term consequences for survivors. However, little is known about coping and resilience in multiple disaster contexts. In this study, we focused on spiritual and secular coping resources and the roles they may play in postdisaster resilience. METHODS: Participants were noncoastal and coastal residents exposed to the 2005 Hurricanes Katrina and Rita and the 2010 Deepwater Horizon oil spill. Psychosocial predictors of central interest were (a) spiritual support and (b) use of coping through humor, and both were hypothesized to be associated with resilience. Covariates included group, gender, education, income, social engagement, charitable work done for others, and lifetime trauma. FINDINGS: Logistic regression analyses confirmed that spiritual support (odds ratio [OR] = 1.11, p ≤ .01) and use of coping through humor (OR = 1.17, p ≤ .01) were independently and positively associated with resilience. Disruption in charitable work done for others in a typical year before the hurricanes (OR = 0.49, p ≤ .05) and income of less than $2,000 per month were negatively associated with resilience (OR = 0.47, p ≤ .05). CONCLUSIONS: These data show that spirituality, humor, disruptions in charitable work, and low income were all independently associated with resilience in the years after consecutive disasters. CLINICAL RELEVANCE: Experiencing one or more disasters can create chronic psychosocial stress in an individual, which is associated with long-term health effects such as inflammation and weakened immune function. Recognizing which coping resources bolster resilience rather than harm is important for improving quality of life in disaster victims.


Subject(s)
Adaptation, Psychological , Cyclonic Storms , Disasters , Petroleum Pollution , Resilience, Psychological , Spirituality , Survivors/psychology , Wit and Humor as Topic/psychology , Adult , Aged , Aged, 80 and over , Female , Humans , Logistic Models , Male , Middle Aged , Poverty/psychology , Quality of Life , Young Adult
15.
Geroscience ; 39(1): 83-92, 2017 02.
Article in English | MEDLINE | ID: mdl-28299637

ABSTRACT

The measurement of biological age as opposed to chronological age is important to allow the study of factors that are responsible for the heterogeneity in the decline in health and function ability among individuals during aging. Various measures of biological aging have been proposed. Frailty indices based on health deficits in diverse body systems have been well studied, and we have documented the use of a frailty index (FI34) composed of 34 health items, for measuring biological age. A different approach is based on leukocyte DNA methylation. It has been termed DNA methylation age, and derivatives of this metric called age acceleration difference and age acceleration residual have also been employed. Any useful measure of biological age must predict survival better than chronological age does. Meta-analyses indicate that age acceleration difference and age acceleration residual are significant predictors of mortality, qualifying them as indicators of biological age. In this article, we compared the measures based on DNA methylation with FI34. Using a well-studied cohort, we assessed the efficiency of these measures side by side in predicting mortality. In the presence of chronological age as a covariate, FI34 was a significant predictor of mortality, whereas none of the DNA methylation age-based metrics were. The outperformance of FI34 over DNA methylation age measures was apparent when FI34 and each of the DNA methylation age measures were used together as explanatory variables, along with chronological age: FI34 remained significant but the DNA methylation measures did not. These results indicate that FI34 is a robust predictor of biological age, while these DNA methylation measures are largely a statistical reflection of the passage of chronological time.


Subject(s)
Aging/genetics , DNA Methylation/genetics , Frailty/genetics , Mortality/trends , Aged , Aged, 80 and over , Cohort Studies , Female , Geriatric Assessment/methods , Humans , Longevity/genetics , Male , Middle Aged , Predictive Value of Tests , Proportional Hazards Models
16.
Disaster Med Public Health Prep ; 11(1): 90-96, 2017 02.
Article in English | MEDLINE | ID: mdl-27974075

ABSTRACT

OBJECTIVE: Exposure to multiple disasters, both natural and technological, is associated with extreme stress and long-term consequences for older adults that are not well understood. In this article, we address age differences in health-related quality of life in older disaster survivors exposed to the 2005 Hurricanes Katrina and Rita and the 2010 BP Deepwater Horizon oil spill and the role played by social engagement in influencing these differences. METHODS: Participants were noncoastal residents, current coastal residents, and current coastal fishers who were economically affected by the BP oil spill. Social engagement was estimated on the basis of disruptions in charitable work and social support after the 2005 hurricanes relative to a typical year before the storms. Criterion measures were participants' responses to the SF-36 Health Survey which includes composite indexes of physical (PCS) and mental (MCS) health. RESULTS: The results of logistic regressions indicated that age was inversely associated with SF-36 PCS scores. A reduction in perceived social support after Hurricane Katrina was also inversely associated with SF-36 MCS scores. CONCLUSIONS: These results illuminate risk factors that impact well-being among older adults after multiple disasters. Implications of these data for psychological adjustment after multiple disasters are considered. (Disaster Med Public Health Preparedness. 2017;11:90-96).


Subject(s)
Adaptation, Psychological , Age Factors , Disasters/statistics & numerical data , Quality of Life/psychology , Social Facilitation , Adolescent , Adult , Aged , Aged, 80 and over , Cyclonic Storms/statistics & numerical data , Female , Humans , Logistic Models , Male , Middle Aged , Petroleum Pollution/adverse effects , Social Support , Southeastern United States , Stress, Psychological/complications , Stress, Psychological/etiology , Stress, Psychological/psychology , Surveys and Questionnaires , Survivors/psychology
17.
Yale J Biol Med ; 89(1): 91-6, 2016 03.
Article in English | MEDLINE | ID: mdl-27505021

ABSTRACT

The authors examined the factor structure of the Knowledge of Memory Aging Questionnaire (KMAQ) [1] using confirmatory factor analysis in a lifespan sample of 933 individuals who ranged in age from 18 to 101. Participants were college students at Louisiana State University and adults from the community enrolled in the Louisiana Healthy Aging Study (LHAS). A two-factor solution was expected, consistent with the normal and pathological memory aging dimensions that comprise the KMAQ. A bi-factor solution with items loading on a general response bias factor and either a normal or pathological knowledge-specific factor showed good model fit. Knowledge scores were correlated with demographic and cognitive performance variables. Implications of these data for clinical settings and research are considered.


Subject(s)
Aging/physiology , Memory/physiology , Adolescent , Adult , Aged , Aged, 80 and over , Alzheimer Disease/physiopathology , Female , Humans , Male , Memory Disorders/physiopathology , Middle Aged , Neuropsychological Tests , Surveys and Questionnaires , Young Adult
18.
Int J Aging Hum Dev ; 83(4): 366-80, 2016 10.
Article in English | MEDLINE | ID: mdl-27380779

ABSTRACT

The authors examined the prevalence of self-reported ageist behaviors in a lifespan sample ranging in age from 13 to 91 years. Participants completed the Relating to Older People Evaluation (Cherry & Palmore). Results indicated that adolescents and young adults reported fewer ageist behaviors overall than did middle-aged and older adults. Positive ageist behaviors were more frequent than negative ageist behaviors for people of all ages. Women endorsed positive ageism items more often than men, although men and women did not differ in frequency of negative ageist behaviors. Follow-up analyses on participants' responses to two knowledge of aging measures, the Facts on Aging Quiz and the Knowledge of Memory Aging Questionnaire, showed that knowledge of aging was significantly correlated with negative ageist behaviors, after controlling for age and gender. Implications of these findings for current views of ageism (positive and negative) are discussed.


Subject(s)
Ageism/psychology , Aging/psychology , Health Knowledge, Attitudes, Practice , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Young Adult
19.
Kinesiol Rev (Champaign) ; 5(1): 50-56, 2016 Feb.
Article in English | MEDLINE | ID: mdl-27034910

ABSTRACT

Social behaviors are associated with health outcomes in later life. The authors examined relationships among social and physical activities and health in a lifespan sample of adults (N = 771) drawn from the Louisiana Healthy Aging Study (LHAS). Four age groups were compared: younger (21-44 years), middle-aged (45-64 years), older (65-84 years), and oldest-old adults (85 to 101 years). Linear regression analyses indicated that physical activity, hours spent outside of the house, and social support were significantly associated with self-reported health, after controlling for sociodemographic factors. Number of clubs was significantly associated with objective health status, after controlling for sociodemographic factors. These data indicate that social and physical activities remain an important determinant of self-perceived health into very late adulthood. Implications of these data for current views on successful aging are discussed.

20.
Biogerontology ; 17(4): 725-36, 2016 08.
Article in English | MEDLINE | ID: mdl-26965008

ABSTRACT

Energy expenditure decreases with age, but in the oldest-old, energy demand for maintenance of body functions increases with declining health. Uncoupling proteins have profound impact on mitochondrial metabolic processes; therefore, we focused attention on mitochondrial uncoupling protein genes. Alongside resting metabolic rate (RMR), two SNPs in the promoter region of UCP2 were associated with healthy aging. These SNPs mark potential binding sites for several transcription factors; thus, they may affect expression of the gene. A third SNP in the 3'-UTR of UCP3 interacted with RMR. This UCP3 SNP is known to impact UCP3 expression in tissue culture cells, and it has been associated with body weight and mitochondrial energy metabolism. The significant main effects of the UCP2 SNPs and the interaction effect of the UCP3 SNP were also observed after controlling for fat-free mass (FFM) and physical-activity related energy consumption. The association of UCP2/3 with healthy aging was not found in males. Thus, our study provides evidence that the genetic risk factors for healthy aging differ in males and females, as expected from the differences in the phenotypes associated with healthy aging between the two sexes. It also has implications for how mitochondrial function changes during aging.


Subject(s)
Aging/physiology , Energy Metabolism/genetics , Mitochondria/genetics , Mitochondria/metabolism , Polymorphism, Single Nucleotide/genetics , Uncoupling Protein 2/genetics , Uncoupling Protein 3/genetics , Aged, 80 and over , Female , Gene Expression Regulation, Developmental/genetics , Humans , Sex Characteristics
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