Functional decline in the elderly: evidence for direct and stress-buffering protective effects of social interactions and physical activity

Social participation and functional disability trajectories in the last three years of life: The Japan Gerontological Evaluation Study

BACKGROUND

Functional disability has various patterns from onset until death. Although social participation is a known protective factor against functional disability among older individuals, it is unclear whether social participation is associated with the trajectory patterns of functional disability prior to death. This study assessed the association between social participation, specifically in horizontal and vertical groups, and the trajectories of functional disability prior to death.

METHODS

We used survey data from the 2010 Japan Gerontological Evaluation Study for functionally independent older adults combined with public long-term care insurance system data from 2010 to 2016 (n = 4,502). The outcome variables included five previously identified trajectory patterns using group-based trajectory modeling. As the explanatory variable, we used three definitions of social participation: any group, horizontal group (e.g., sports, hobbies), or vertical group (e.g., political, religious), at least once a month. We used a multinomial logistic regression analysis to calculate odds ratios with 95 % confidence intervals for the identified trajectory patterns.

RESULTS

Participation in any groups was significantly less likely to belong to "Accelerated disability" (OR=0.74 [95 % CIs 0.60-0.92]), "Persistently mild disability" (0.68 [0.55-0.84]), and "Persistently severe disability" (0.67 [0.50-0.83]) compared to "Minimum disability." Although participation in horizontal groups was similarly associated with trajectories regardless of gender, vertical groups was not associated with trajectories among males.

CONCLUSIONS

Social participation among older adults may be associated with an extended period of living without disabilities before death. This association may differ by gender and social participation group and requires further research.

The Role of the Built Environment in Supporting Older Adults' Engagement: A Narrative Literature Review

OBJECTIVE

This literature review aimed to summarize the existing knowledge surrounding the role of the built environment in supporting older adults' physical and social engagement and identify opportunities for future research and design that facilitates older adults' engagement at multiple environmental scales: from interior spaces to neighborhoods.

BACKGROUND

Physical environments can support or impede older adults' physical and social engagement: willful, motivated involvement in meaningful activity or occupation. Research shows that engagement is a core component of health and well-being and relates to positive health outcomes, including reduced disease risk, better mental health, and improved physical and cognitive function. Thus, designing supportive built environments for engagement can yield significant, positive health and well-being impacts.

METHODS

A systematized search of five databases, a hand search, and an iterative screening process identified 55 studies for inclusion in this review. Through inductive thematic analysis, this review summarizes findings regarding the built environment's role in physical and social engagement in older age and design strategies to facilitate engagement and support health and well-being.

RESULTS

Evidence indicates that built environment characteristics can influence older people's physical and social engagement in homes, neighborhoods, and care settings. The thematic analysis of the included studies identified three key themes concerning the relationships of built environment characteristics to older adults' engagement across multiple environmental scales: connection, access, and security.

CONCLUSIONS

Built environments influence older people's physical and social engagement, significantly affecting their health, well-being, abilities, and longevity. Numerous design strategies can support older adults' engagement, but more research is needed.

The Role of Late-Life Work Among Widowed Adults in Korea: A Buffer or Burden for Widow(er)s' Health?

To examine the role of work in the bereavement process, we focused on health changes among widowed adults. We analyzed a sample of 518 adults (aged 52-95) from the Korean Retirement and Income Study (2011-2019) who experienced spousal loss during the study period. The widowed participants provided data on their employment status and perceived health at both pre-loss and post-loss. Widowed participants reported worse physical and mental health after the bereavement, but the significant health deterioration was not observed among employed participants. Adjusting for pre-loss health status and other covariates, employed widow(er)s showed a smaller decrease in physical and mental health, compared to their counterparts. The effect of employment on physical health changes was more pronounced for economically vulnerable widow(er)s. Work might serve as a restoring coping strategy for widowed individuals; economic benefits from the job may also contribute to their health and well-being.

Beyond MACE: a multidimensional approach to outcomes in clinical trials for older adults with stable ischemic heart disease

The global population of older adults is expanding rapidly resulting in a shift towards managing multiple chronic diseases that coexist and may be exacerbated by cardiovascular illness. Stable ischemic heart disease (SIHD) is a predominant contributor to morbidity and mortality in the older adult population. Although results from clinical trials demonstrate that chronological age is a predictor of poor health outcomes, the current management approach remains suboptimal due to insufficient representation of older adults in randomized trials and the inadequate consideration for the interaction between biological aging, concurrent geriatric syndromes, and patient preferences. A shift towards a more patient-centered approach is necessary for appropriately and effectively managing SIHD in the older adult population. In this review, we aim to demonstrate the distinctive needs of older adults who prioritize holistic health outcomes like functional capacity, cognitive abilities, mental health, and quality of life alongside the prevention of major adverse cardiovascular outcomes reported in cardiovascular clinical trials. An individualized, patient-centered approach that involves shared decision-making regarding outcome prioritization is needed when any treatment strategy is being considered. By prioritizing patients and addressing their unique needs for successful aging, we can provide more effective care to a patient population that exhibits the highest cardiovascular risks.

Effect of Multicomponent Intervention on Functional Decline in Chinese Older Adults: A Multicenter Randomized Clinical Trial

OBJECTIVES

To confirm whether multicomponent exercise following vivifrail recommendations was an effective method for improving physical ability, cognitive function, gait, balance, and muscle strength in Chinese older adults.

METHODS

This was a multicenter and randomized clinical trial conducted in Jiangsu, China, from April 2021 to April 2022. Intervention lasted for 12 weeks and 104 older adults with functional declines were enrolled. All participants were randomly assigned to a control (usual care plus health education) or exercise group (usual care plus health education plus exercise). Primary outcomes were the change score of Short Physical Performance Battery (SPPB) and activities of daily living (ADL). The secondary outcomes included instrumental activities of daily living, Tinetti scores, Frailty score, short-form Mini Nutritional Assessment, Mini-Mental State Examination, Geriatric Depression Scale-15, the 12-item Short Form Survey, 4-meter gait speed test, 6-min walking distance, grip strength, and body composition analysis.

RESULTS

Among the participants, the average age was 85 (82, 88) years. After 12 weeks of follow-up, the exercise group showed a significant improvement in SPPB, with a change of 2 points (95% confidence interval [0, 3.5], P<0.001) compared to control. In contrast, SPPB remained stable in the control group. Compared to the control group, ADL improved in the exercise group, as did instrumental activities of daily living, Tinetti, Frailty, Short Form Survey, 4-meter gait speed test, and 6-min walking distance. Although there was no significant difference between groups in body composition analysis after post-intervention, the exercise group still improved in soft lean mass (P=0.002), fat-free mass (P=0.002), skeletal muscle mass index (P<0.001), fat-free mass index (P=0.004), appendicular skeletal muscle mass (P<0.001), and leg muscle mass (P<0.001), while the control group had no significant increase. No difference was observed in adverse events during trial period.

CONCLUSIONS

The multicomponent exercise intervention following vivifrail recommendations is an effective method for older adults with functional decline and can reverse the functional decline and improve gait, balance, and muscle strength. Additionally, the 12-week multicomponent exercise method provides guidance for Chinese medical professionals working in the field of geriatrics and is a promising method to improve physical function in the general population.

Association of social participation (including inconsistent participation) with the progression of frailty among older adults: Community-based cohort study in Japan

AIM

This study examined the relationship between continuity of social participation and progression of frailty among community-dwelling older adults, by baseline frailty level.

METHODS

This study was part of a 3-year community-based cohort study among adults aged ≥65 years, living independently in a rural municipality in Japan. Mail surveys were carried out in 2016, 2018 and 2019. This study involved 2799 participants who responded to the question about social participation in every survey. Frailty was evaluated by Kihon Checklist total scores. Social participation was categorized into consistent non-participation, interrupted recent non-participation, interrupted recent participation and consistent participation. We assessed the relationship between social participation and change in frailty scores using general linear regression analysis, stratifying the participants into groups by their frailty level at baseline.

RESULTS

There was a smaller frailty score increase in the robust (β -0.61, 95% CI -0.99 to -0.22) and prefrail groups (β -0.73, 95% CI -1.18 to -0.27) for consistent participation than consistent non-participation. Interrupted recent participation showed significant suppression in the prefrail group (β -0.96, 95% CI -1.60 to -0.32). Social participation had no clear effect on progression in the frail group.

CONCLUSIONS

Consistent social participation might reduce the progression of frailty in robust and prefrail people. Inconsistent participation might also help to reduce progression in prefrail older adults. It is important for prefrail older adults to return to their social activities and continue to engage as long as possible, even if their participation was intermittent in the past. Geriatr Gerontol Int 2023; 23: 25-31.

The Mediating Role of Perceived Stress and Academic Procrastination between Physical Activity and Depressive Symptoms among Chinese College Students during the COVID-19 Pandemic

Depressive symptoms, a prevalent mood illness, significantly harm college students' physical and mental health. Individuals have experienced some degree of psychological harm as a result of the COVID-19 pandemic. Taking this into account, the purpose of this study was to investigate the relationship between physical activity (PA) and depressive symptoms among college students during the COVID-19 pandemic, as well as the mediating roles of perceived stress and academic procrastination. A total of 586 college students were subjected to the Physical Activity Scale (PARS-3), the Perceived Stress Scale (PSS-10), the Procrastination Assessment Scale-Students (PASS), and the Patient Health Questionnaire (PHQ-9). Findings from this research demonstrated that there was a significant positive correlation between perceived stress, academic procrastination, and depressive symptoms, while PA was significantly negatively correlated with perceived stress, academic procrastination, and depressive symptoms. The results of the chain mediation analysis showed that PA had a significant direct effect on depressive symptoms. Perceived stress, academic procrastination, and perceived stress-academic procrastination had significant mediating and chain mediating effects on the relationship between PA and depressive symptoms. In conclusion, PA among college students during the COVID-19 pandemic affects their depressive symptoms directly and indirectly through the independent mediating effect of perceived stress and academic procrastination, as well as the chain mediating effect of perceived stress and academic procrastination.

Joint associations of social health and movement behaviours with mortality and cardiovascular disease: an analysis of 497,544 UK biobank participants

Background

Poor physical activity and excessive sedentary behaviour are well-established risk factors for morbidity and mortality. In the presence of emerging social problems, including loneliness and social isolation, these risks may be even greater. We aimed to investigate the joint effects of social health and movement behaviours on mortality and cardiovascular disease (CVD).

Methods

497,544 UK Biobank participants were followed for an average of 11 years. Loneliness and social isolation were measured via self-report. Physical activity was categorised around current World Health Organisation (WHO) guidelines as low (< 600 metabolic equivalent of task [MET]-mins/week), moderate (600 < 1200) and high (≥ 1200). Sedentary behaviour was classified as low (≤ 3.5 h/day), moderate (3.5 ≤ 5) and high (> 5.5). We derived 24 social health–movement behaviour combinations, accordingly. Mortality and hospitalisations were ascertained to May 2020 for all-cause and CVD mortality, and non-fatal cardiovascular events.

Results

Social isolation amplified the risk of both all-cause and CVD death across all physical activity and sedentary levels (hazard ratio, 95% confidence interval [HR, 95% CIs] for all-cause mortality; 1.58 [1.49 to 1.68] for low active-isolated vs. 1.26 [1.22 to 1.30] for low active-not isolated). Loneliness was only found to amplify the risk of death from cardiovascular disease among the high active and low sedentary participants. Loneliness and social isolation did not add to the risk of non-fatal cardiovascular events across most activity levels.

Conclusion

The detrimental associations of poor physical activity and sedentary behaviour with mortality were consistently amplified by social isolation. Our study supports the need to target the socially isolated as a priority group in preventive public health strategies.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12966-022-01372-3.

Exercise interventions for stress reduction in older adult populations: a systematic review of randomized controlled trials

Background and Objectives

To assess which forms of supervised exercise are effective in reducing psychological stress in older adults.

Research Design

Systematic Review.

Methods

Four electronic databases (PubMed, Web of Science, PsycInfo, and SportDiscus) were searched in February of 2021. Randomised controlled trials (RCTs) investigating supervised exercise interventions for psychological stress reduction in adults aged 50 + were included in this review. Data on type, intensity, and duration of the intervention were also extracted.

Results

854 studies were identified by the search strategy. Twelve RCTs met inclusion criteria. Trials involving low-intensity qigong and trials combining aerobic and anaerobic or aerobic and nutrition/diet education demonstrated the strongest evidence for stress reduction.

Discussion and Implications

Exercise may reduce stress in older adults. Suitable duration of programme ranges from 3 months to 1 year. Light to moderate activity is recommended for best results, with qigong being the most consistent and common exercise.

The Influence of Physical Exercise Frequency and Intensity on Individual Entrepreneurial Behavior: Evidence from China

Physical exercise can benefit individuals' physical and mental health and also influence individuals' long-term behavioral choices. Doing exercise is particularly important given that physical exercise can impact individuals' cognitive abilities and positive emotional states, which may further impact entrepreneurial behavior. Therefore, understanding the relationship between exercise and entrepreneurial behavior is essential, because it can provide policy suggestions for popularizing athletic activities and boosting entrepreneurship. Consequently, the present study examined whether physical exercise could predict entrepreneurial behavior and the possible psychological mechanisms within this relationship. Based on the 2017 Chinese General Social Survey (CGSS2017), this study tested the hypotheses using the Probit and Tobit models. The results showed that individuals' physical exercise intensity and frequency positively affected their entrepreneurial behavior. In addition, five variables moderated the relationships between physical exercise and individual entrepreneurial behavior: urban-rural differences, education level, marital status, the existence of minor children, and age. Moreover, positive emotions and physical/mental health mediated the influence of physical exercise (exercise frequency and exercise intensity) on individual entrepreneurial behavior. Endogeneity explanations were ruled out by including instrumental variable, copula terms and adopting coarsened exact matching.

Physical Activity Influences Cortisol and Dehydroepiandrosterone (Sulfate) Levels in Older Adults: A Systematic Review and Meta-Analysis

Age-related changes affect the ratio between two steroid hormones of the hypothalamic-pituitary-adrenal axis, cortisol and dehydroepiandrosterone (sulfate) (DHEA[S]). Physical activity (PA) may buffer the effects of chronic stress and counteract the aging decline of DHEA(S). Therefore, a systematic review was conducted to understand how PA influences physiological markers of cortisol and/or DHEA(S) and whether there is a difference in observational associations or experimental effects in older adults aged 65 years and older. A narrative synthesis was performed on nine observational studies, and meta-analyses were performed on 22 randomized controlled trials. There was low- to moderate-quality evidence that regular PA beneficially reduces cortisol and increases DHEA(S) levels. Subgroup analyses showed no clinically important differences between men and women, different exercise modalities, or health states. The findings cautiously suggest that regular PA of older adults' own choice that they find enjoyable could be recommended to improve cortisol and/or DHEA(S) levels.

Social Networks and Cognitive Function: An Evaluation of Social Bridging and Bonding Mechanisms

BACKGROUND AND OBJECTIVES

Social connectedness has been linked prospectively to cognitive aging, but there is little agreement about the social mechanisms driving this relationship. This study evaluated nine measures of social connectedness, focusing on two forms of social enrichment - access to an expansive and diverse set of loosely connected individuals (i.e., social bridging) and integration in a supportive network of close ties (i.e., social bonding).

RESEARCH DESIGN AND METHODS

This study used egocentric network and cognitive data from 311 older adults in the Social Networks in Alzheimer Disease (SNAD) study. Linear regressions were used to estimate the association between social connectedness and global cognitive function, episodic memory, and executive function.

RESULTS

Measures indicative of social bridging (larger network size, lower density, presence of weak ties, and proportion non-kin) were consistently associated with better cognitive outcomes, while measures of social bonding (close ties, multiplex support, higher frequency of contact, better relationship quality, and being married) largely produced null effects.

DISCUSSION AND IMPLICATIONS

These findings suggest that the protective benefits of social connectedness for cognitive function and memory may operate primarily through a cognitive reserve mechanism that is driven by irregular contact with a larger and more diverse group of peripheral others.

Self-efficacy training as an adjunct to exercise in a person with progressive multiple sclerosis: a case report

Background: Increasing self-efficacy to exercise and minimizing disease-related barriers has been shown to improve physical activity levels and quality of life (QOL) in persons with multiple sclerosis (MS). Currently, little research has examined exercise self-efficacy in persons with more advanced MS. Purpose: Explore the effects of a self-efficacy plus exercise intervention on physical activity endurance and level, QOL, and fatigue in an individual with advanced MS and low self-efficacy.Methods: The participant was a 60-year-old, severely disabled female with secondary progressive MS and an Expanded Disability Status Score (EDSS) of 8. The 8-week intervention consisted of weekly discussions and MS-related education; four one-on-one sessions with a MS "mentor;" daily journal to record sleep quality, fatigue level, and physical activity. Outcomes included a modified 5-meter walk test (5MWT), MS Impact Scale (MSIS-29), Exercise Self-Efficacy Scale (EX-ES), Modified Fatigue Impact Scale (MFIS), MS Self-Efficacy Scale (MS-SES), Patient Health Questionnaire-9 (PHQ-9), and daily physical activity monitoring. Outcomes were assessed at baseline (week 0), post-intervention (week 8), and 8 weeks post intervention (week 16). The participant continued her regular exercise routine independently throughout the study period.Results: There were notable improvements in EX-ES, MFIS, PHQ-9, MSIS-29 psychological subscale, sleep quality, and morning fatigue ratings post intervention, some of which were retained at follow up.Conclusion: The findings illustrate that an 8-week self-efficacy intervention increased exercise self-efficacy, QOL, and reduced perceived fatigue in a severely disabled individual with progressive MS. Future research should examine self-efficacy interventions in a larger sample size of persons with progressive MS.

The Role of Psychological and Social Well-being on Physical Function Trajectories in Older Adults

BACKGROUND

Psychological and social well-being are emerging as major determinants in preserving health in old age. We aimed to explore the association between these factors and the rate of decline in physical function over time in older adults.

METHODS

Data were gathered from the Swedish National study on Aging and Care in Kungsholmen (SNAC-K). The study population consisted of 1,153 non-demented, community-dwelling men and women free from multimorbidity or impairments in basic or instrumental activities of daily living at baseline. They were followed over 12 years to capture the rate of decline in physical function, which was measured by combining data on walking speed, balance, and chair stands. The association between baseline psychological and social well-being and decline in physical function was estimated through linear mixed models, after multiple adjustments including personality and depressive symptoms.

RESULTS

Higher levels of psychological (β = .007; p = .037) and social (β = .008; p = .043) well-being were significantly associated with a decreased rate of decline in physical function over the follow-up. There was a significant three-way interaction between psychological well-being*time*sex (female vs male) (β = .015; p = .047), showing that a slower decline in physical function was observed only among women and not in men. The association was strongest for individuals with high levels of both psychological and social well-being (β = .012; p = .019).

CONCLUSION

High levels of psychological and social well-being may slow down the age-related decline in physical function, which confirms the complexity of older adults' health, but also points towards new preventative strategies.

An Affordable, User-friendly Telerehabilitation System Assembled Using Existing Technologies for Individuals Isolated With COVID-19: Development and Feasibility Study

Background

Isolation due to a COVID-19 infection can limit activities and cause physical and mental decline, especially in older adults and people with disabilities. However, due to limited contact, adequate rehabilitation is difficult to provide for quarantined patients. Telerehabilitation technology could be a solution; however, issues specific to COVID-19 should be taken into consideration, such as strict quarantine and respiratory symptoms, as well as accessibility to deal with rapid increases in need due to the pandemic.

Objective

This study aims to develop and to investigate the feasibility of a telerehabilitation system for patients who are quarantined due to COVID-19 by combining existing commercial devices and computer applications.

Methods

A multidisciplinary team has identified the requirements for a telerehabilitation system for COVID-19 and developed the system to satisfy those requirements. In the subsequent feasibility study, patients diagnosed with COVID-19 (N=10; mean age 60 years, SD 18 years) were included. A single session of telerehabilitation consisted of stretching exercises, a 15-minute exercise program, and a video exercise program conducted under real-time guidance by a physical therapist through a video call. The system included a tablet computer, a pulse oximeter, videoconferencing software, and remote control software. The feasibility of the system was evaluated using the Telemedicine Satisfaction Questionnaire (TSQ; 14 items) and an additional questionnaire on the telerehabilitation system (5 items). Each item was rated from “1 = strongly disagree” to “5 = strongly agree.”

Results

The telerehabilitation system was developed by combining existing devices and applications, including a pulse oximeter and remote control mechanism, to achieve user-friendliness, affordability, and safety, which were determined as the system requirements. In the feasibility study, 9 out of 10 patients were able to use the telerehabilitation system without any on-site help. On the TSQ, the mean score for each item was 4.7 (SD 0.7), and in the additional items regarding telerehabilitation, the mean score for each item was 4.3 (SD 1.0).

Conclusions

These findings support the feasibility of this simple telerehabilitation system in quarantined patients with COVID-19, encouraging further investigation on the merit of the system’s use in clinical practice.

The effects of cohousing model on people's health and wellbeing: a scoping review

Background

Housing is a social determinant of health. Extensive research has highlighted its adverse effects on health. However, less is known about the effects of cohousing typology on health, which has the potential to create lively social networks and healthy communities and environments. We report the findings of a scoping study designed to gather and synthesise all known evidence on the relationship between cohousing and wellbeing and health.

Method

Using the scoping review method, we conducted a literature review in PubMed, ProQuest, Scopus, Web of Science, Science Direct and JSTOR in May 2019 and selected articles published from 1960 onwards, with no geographical limit and no design restrictions. Retrieved articles underwent three sequential screening phases. The results were described through a narrative synthesis of the evidence.

Results

Of the 2560 articles identified, we selected 25 full-text articles analysing 77 experiences. All of them were conducted in high-income countries. Ten studies analysed the impact of cohousing on physical and mental health or quality of life and wellbeing. Eight of the 10 studies found a positive association. In addition, 22 studies analysed one or more psychosocial determinants of health (such as social support, sense of community and physical, emotional and economic security) and most found a positive association. Through these determinants, quality of life, wellbeing and health could be improved. However, the quality of the evidence was low.

Discussion

The cohousing model could enhance health and wellbeing mediated by psychosocial determinants of health. However, extreme caution should be exercised in drawing any conclusions due to the dearth of data identified and the designs used in the included studies, with most being cross-sectional or qualitative studies, which precluded causal-based interpretations. Because housing is a major social determinant of health, more evidence is needed on the impact of this model on health through both psychosocial and material pathways.

A Multi-method Investigation of the Personality Correlates of Functional Ability in Older Adults

OBJECTIVES

This study evaluated the role of personality in predicting functional ability (FA) in older adults using self-report, collateral report, and performance-based measures of FA.

METHODS

Participants included older adults (N = 131) who completed a personality measure (NEO-FFI), a self-report of FA (OARS ADL), and participated in a performance-based assessment of FA (DAFS-R). In addition, each participant had a collateral complete a collateral report of FA (OARS ADL). Bivariate correlations were computed to assess how Five Factor Model traits were related to self-report, collateral, and performance-based measures of FA.

RESULTS

Neuroticism was negatively related to self-reported FA (r = - .27) and collateral-reported FA (r = - .18) and Conscientiousness was positively related to self-reported FA (r = .25). None of the traits were significantly related to the performance-based measure of FA.

CONCLUSIONS

These results suggest that personality traits can impact self-reported FA in older adults and underscore the importance of assessing FA in older adults using multiple methods, particularly performance-based measures.

CLINICAL IMPLICATIONS

Clinicians should consider how personality may impact FA in older adults and multiple methods of FA performance should be examined to better tailor recommendations.

Social vulnerability underlying disability amongst older adults: A systematic review

BACKGROUND

Older adults face radical changes in their social life during ageing, dealing with several age-related social adaptations. The aim of this review is to systematically explore the literature on social vulnerability (SV) and its association with functional decline activity of daily living (ADL)/instrumental activities of daily living (IADL) as an endpoint in older adults.

METHODS

We searched for relevant studies in three different databases: PubMed, Ovid Medline and PsychInfo. Inclusion criteria included: prospective cohort studies assessing SV correlation; studies in English, Italian, French and Spanish to the end of March 2018; a general population aged >65 years living in a community setting and/or studies including younger participants if the mean age was >65 years; and basic ADL and/or IADL by Katz and Lawton, respectively, as functional decline and clinical outcomes.

RESULTS

We identified 65 manuscripts that assessed the role of SV in functional decline. Our systematic analysis showed that 26, 36 and 19 studies observed a correlation between Basic Social Needs, Social Resources and Social Behaviour and Activity, respectively, and the onset of ADL/IADL functional decline. Twenty-six studies explored the correlation between General Social Resources and the onset of ADL/IADL functional decline.

CONCLUSIONS

When examining a wide set of social variables, the "quality," rather than just structure, and "type" of social relationship represents the core feature of SV that predicts functional decline in older adults. By defining individual SV, its measurement and evaluation, we can plan effective social interventions aimed at preventing or delaying functional decline or death.

Longitudinal Stress-Buffering Effects of Social Integration for Late-Life Functional Health

Stress can negatively affect multiple aspects of health, including functional health, among older adults, who are likely to face unique, age-related stressful experiences. Previous research has addressed the protective effects of social relations (i.e., social ties, social participation, and social integration) for physical and mental health outcomes, yet few studies have examined functional health. This study aimed to investigate the longitudinal stress-buffering effects of social integration on late-life functional health. Using three-wave data from 399 older adults (aged older than 60 years), two-level hierarchical linear modeling analysis was conducted and the results indicated that in addition to its main effect on functional (activity of daily living) limitations, social integration moderated the negative effect of stress on the longitudinal trajectory of functional limitations. The findings suggest important directions of future research to identify the mechanisms of such buffering effects over time and develop effective interventions to enhance late-life functional health while promoting social integration.

Strategies older adults use in their work to get back to normal following hospitalization

Loss of function is a significant concern among hospitalized older adults, and prior research suggests they engage in dedicated work to regain "normal" function following hospitalization. This paper aims to describe the strategies older adults use to return to normal function and the conditions that influence their ability to do so. Recently discharged adults aged 65 and older (N = 14) completed in-depth one-on-one interviews. Data were analyzed using open, axial, and selective coding. Participants described strategies they used to regain their normal function following hospitalization: doing exercises, expanding physical space, resuming activities and daily cares, and tracking improvement with benchmarks. Several conditions, such as presence of informal and formal support, perceived threats, and poor physical or physiologic function, acted as barriers and facilitators to participants' ability to work back to normal function. Findings increase our understanding of patients' work to regain normal function and have important implications for practice.

Widowhood, leisure activity engagement, and cognitive function among older adults

OBJECTIVES

Maintaining cognitive function is an essential aspect of successful aging. Widowhood is a salient life transition that can affect older adults' cognitive function. Leisure engagement has received increasing attention because it is still modifiable in later life to help prevent cognitive decline. Nonetheless, limited longitudinal studies have examined how widowhood influences cognitive function, and even fewer studies have tested the role of leisure activities in this relationship.

METHOD

This study delineated the mechanism of widowhood, leisure activity engagement, and cognitive function among older adults using a national longitudinal dataset, the Health and Retirement Study, and its supplementary dataset, the Consumption and Activities Mail Survey, which repeatedly measured individuals' leisure activity engagement.

RESULTS

Findings showed no significant association between widowhood and cognitive function during a 4-year period. However, engagement in mental activities moderated the impact of widowhood on cognitive function. Specifically, the benefit of mental activity engagement on cognition was more pronounced among individuals who were recently widowed compared to those who were married. This implies a protective role of mental activities in the relationship between widowhood and cognitive function.

CONCLUSION

Interventions with mentally stimulating activities at the community level to retain cognition among individuals in early phase widowhoodare suggested. Future studies are necessary to explore whether other factors such as changes in physical and mental health and intergenerational support from adult children during widowhood may further influence this mechanism among widowhood, leisure activities, and cognitive function.

Valued activities among individuals with and without functional impairments: Findings from the National Health and Aging Trends study (NHATS)

Using the National Health and Aging Trends Study (NHATS), we examined baseline activity and functional status. Respondents were classified as High (n=1,662), Moderate (n=1,973), or Low (n=989) Function and rated importance of and actual participation in four activities. Transportation and health were also examined. Individuals classified as low function were less likely to engage in valued activities and more likely to report that poor health and transportation limited participation, compared to individuals with no or moderate functional impairments. Data suggest the importance of developing interventions which bridge the gap between activity preferences and participation for older adults with functional limitations.

Gender, self-rated health and functional decline among community-dwelling older adults

OBJECTIVE

This paper examines the association between self-rated health (SRH) and functional decline (FD) in older Ghanaian cohorts and investigates whether the effect differs by gender and also modified by marital status.

METHODS

The study used cross-sectional survey data (N = 1200) from an Aging, Health, Psychological Wellbeing and Health-seeking Behavior Study (AHPWHB) study conducted in between August 2016 and January 2017. A four-level gendered-stratified logit modeling estimated the SRH-FD association and the interaction terms.

RESULTS

Overall, 23% of male respondents and 34% of women revealed significant FD (p < 0.001). The fully-adjusted model showed that SRH status was a strong predictor of FD across genders but the effect was most pronounced among men. Compared with excellent/very good SRH, fair and poor SRH (β = 0.160; p < 0.05) and (β = 1.700; p < 0.001) for women and (β = 2.202; p < 0.001) and (β= 2.356; p < 0.001) for men respectively were significantly associated with increased FD. However, good (β = - 1.760; p < 0.001), fair (β = - 2.800; p < 0.001) and poor SRH (β = -2.088; p < 0.001) decreased FD if an older woman was married compared with unmarried women with excellent/very good SRH.

CONCLUSION

The strength of SRH-FDs association largely differed with gender and also moderated by marital status for women. Improving the SRH and marital quality could be protective of functional abilities, independence and quality of life for older people.

Retirement, Leisure Activity Engagement, and Cognition Among Older Adults in the United States

Objective: Retirement is a salient later-life transition that may influence cognition. Leisure activities can help individuals better adjust to life after significant life transitions. This study examined the role of leisure activity engagement in the relationship between retirement and cognition. Method: A path analysis (N = 2,827) was conducted using three waves of the Health and Retirement Study (2004, 2006, 2008) and its supplementary Consumption and Activities Mail Survey, to test the association between retirement (categorized as remained working, transitioned to retirement, remained retired) and cognition (memory, working memory, attention, and processing speed) via leisure (mental, physical, social, household) activity engagement. Results: Older adults who remained retired showed significantly lower cognition than those who remained working. Moreover, this negative association between retirement and cognition was attenuated by greater engagement mental activities. Discussion: Interventions that encourage mental activities among retired individuals are strongly suggested to help maintain cognitive function.

Social participation perspectives of people with cognitive problems and their care-givers: a descriptive qualitative study

The aim of this study is to explore how community-dwelling older people with cognitive problems and their care-givers (dyads) perceive their own social participation, how care-givers evaluate the social participation of the people they care for and what factors they perceive as influential. In this qualitative study, we performed 13 semi-structured, in-depth interviews with dyads who participated in the Social Fitness Programme. We used content analysis to analyse the interviews thematically. Social participation perceptions include changes over time and a discrepancy in perspectives. All the people with cognitive problems and most care-givers perceived a decreased social participation. Most people with cognitive problems answered that they were satisfied, in contrast to most care-givers who were dissatisfied with the decreased social participation of the people they cared for. Analysing the influencing factors resulted in five themes: behavioural, physical, social environmental, physical environmental and activity-related. People with cognitive problems and their care-givers displayed a discrepancy in social participation perspectives. This becomes a major dilemma, especially for younger care-givers. A key element is a sometimes deliberate choice of people with cognitive problems to refrain from social participation to protect themselves from the consequences of cognitive problems and from encounters with others. This highlights the dynamics of social participation as an interaction between personal factors and the social and physical environment in which social participation occurs.

Acceptance and Attitudes Toward a Human-like Socially Assistive Robot by Older Adults

Recent studies have shown that cognitive and social interventions are crucial to the overall health of older adults including their psychological, cognitive, and physical well-being. However, due to the rapidly growing elderly population of the world, the resources and people to provide these interventions is lacking. Our work focuses on the use of social robotic technologies to provide person-centered cognitive interventions. In this article, we investigate the acceptance and attitudes of older adults toward the human-like expressive socially assistive robot Brian 2.1 in order to determine if the robot's human-like assistive and social characteristics would promote the use of the robot as a cognitive and social interaction tool to aid with activities of daily living. The results of a robot acceptance questionnaire administered during a robot demonstration session with a group of 46 elderly adults showed that the majority of the individuals had positive attitudes toward the socially assistive robot and its intended applications.

Pathways from physical frailty to activity limitation in older people: Identifying moderators and mediators in the English Longitudinal Study of Ageing

Physical frailty increases the risk of future activity limitation, which in turn, compromises independent living of older people and limits their healthspan. Thus, we seek to identify moderators and mediators of the effect of physical frailty on activity limitation change in older people, including gender- and age-specific effects. In a longitudinal study using data from waves 2, 4, and 6 of the English Longitudinal Study of Ageing, unique physical frailty factor scores of 4638 respondents aged 65 to 89years are obtained from confirmatory factor analysis of physical frailty, which is specified by three indicators, namely slowness, weakness, and exhaustion. Using a series of autoregressive cross-lagged models, we estimate the effect of physical frailty factor score on activity limitation change, including its moderation by social conditions, and indirect effects through physical and psychological conditions. We find that the effect of physical frailty on activity limitation change is significantly stronger with older age, while it has significant indirect effects through low physical activity, depressive symptoms, and cognitive impairment. In turn, indirect effects of physical frailty through low physical activity and cognitive impairment are stronger with older age. Sensitivity analyses suggest that these effects vary in their robustness to unmeasured confounding. We conclude that low physical activity, depressive symptoms, and cognitive impairment are potentially modifiable mediators on pathways from physical frailty to activity limitation in older people, including those who are very old. This evidence offers support for population-level interventions that target these conditions, to mitigate the effect of physical frailty on activity limitation, and thereby enhance healthspan.

Positive and negative influences of social participation on physical and mental health among community-dwelling elderly aged 65-70 years: a cross-sectional study in Japan

BACKGROUND

Although numerous investigations have indicated that social participation (SP) has positive effects on the health of older adults, there have been few studies on its negative health consequences. We examined the cross-sectional associations of the type, frequency, and autonomy for SP with physical and mental health.

METHODS

The analytical subjects were 5126 males and 7006 females who were functionally independent, born between 1945 and 1949, and covered by A City's medical insurance system. Physical and mental health were measured using the SF-8 Health Survey. SP was measured through six types of social groups. These social groups included volunteer groups, sports groups, hobby clubs, senior citizens' clubs, neighborhood community associations, and cultural groups. Analysis of covariance was conducted to compare adjusted physical health component summary scores (PCS) and mental health component summary scores (MCS) by the frequency and autonomy of SP. Age, family size, body mass index, chronic conditions, smoking, alcohol intake, depression and cognitive functioning were included as covariates. To examine whether the associations between SP and PCS/MCS are different between genders, we performed analyses stratified by gender.

RESULTS

Overall, positive associations of the frequency and autonomy of SP with PCS and MCS were stronger in females than males. As to frequency, frequent participation in sports groups and hobby clubs had significantly better PCS among both genders and better MCS among females than non-participation. None of the groups differed significantly in the MCS among males. As to autonomy, among both genders, voluntary participation in sports groups and hobby clubs had significantly better PCS than non-participation, and better MCS than not only non-participation, but also obligatory participation. Among females, obligatory participation in all groups had significantly poorer MCS than voluntary participation, and obligatory participation in sports groups had significantly poorer MCS than non-participation.

CONCLUSIONS

Obligatory SP had significantly poorer MCS than voluntary participation, occasionally than non-participation; there is a possibility that obligatory SP has harmful influences on mental health of community-dwelling elderly. Measures to promote SP with consideration for individuals' autonomy may be effective in the public health approach to maintaining mental health.

Age and gender differences in the association between social participation and instrumental activities of daily living among community-dwelling elderly

BACKGROUND

Although many studies have suggested social participation (SP) has beneficial effects on elderly people's health, most of them failed to deal with paid work. Additionally, few studies have focused on the age effect between SP and older people's health. To investigate whether the association between SP, including paid work, and instrumental activities of daily living (IADL), exhibits not only in gender, but also in age among community-dwelling older adults.

METHODS

In 2014, we distributed self-administered questionnaires to all community-dwelling elderly aged ≥65 in two medium-sized cities in Nara Prefecture, Japan (n = 32,825). 22,845 residents submitted the questionnaire (response rate, 69.6%). Analyzed subjects were limited to 17,680 persons who had neither dependency in basic ADL nor missing data for required items. SP was assessed based on participation frequency in seven types of social activities: volunteer groups, sports groups, hobby groups, cultural groups, senior citizens' clubs, neighborhood community associations, and paid work. Using Poisson regression models, prevalence ratio for poor IADL was calculated. To examine age and gender differences in the association between SP and IADL, we performed stratified analyses by age and gender group; male young-old (aged 65-74), male old-old (aged ≥75), female young-old, and female old-old.

RESULTS

Prevalence of those with poor IADL was 17.1% in males and 4.5% in females, showing a significant gender difference. After adjustment for relevant covariates, volunteer groups were inversely associated with poor IADL only in males and the relationship was stronger in the old-old group than in the young-old group. Conversely, only females had a significant inverse association between paid work and poor IADL, and the association was not reliant on their ages but only those who participated infrequently had a favorable effect. Influence of age in the beneficial association between SP and IADL was generally larger in the old-old group than in the young-old group, but hobby groups were inversely associated with poor IADL, regardless of age, gender, and frequency.

CONCLUSIONS

Our results suggest that SP in older age is positively associated with IADL, however, the association seems to differ depending on the type of activities participated in, the participants' gender, and their age.

The effects of an extensive exercise programme on the progression of Mild Cognitive Impairment (MCI): study protocol for a randomised controlled trial

Background

Exercise interventions to prevent dementia and delay cognitive decline have gained considerable attention in recent years. Human and animal studies have demonstrated that regular physical activity targets brain function by increasing cognitive reserve. There is also evidence of structural changes caused by exercise in preventing or delaying the genesis of neurodegeneration. Although initial studies indicate enhanced cognitive performance in patients with mild cognitive impairment (MCI) following an exercise intervention, little is known about the effect of an extensive, controlled and regular exercise regimen on the neuropathology of patients with MCI. This study aims to determine the effects of an extensive exercise programme on the progression of MCI.

Methods/design

This randomised controlled clinical intervention study will take place across three European sites. Seventy-five previously sedentary patients with a clinical diagnosis of MCI will be recruited at each site. Participants will be randomised to one of three groups. One group will receive a standardised 1-year extensive aerobic exercise intervention (3 units of 45 min/week). The second group will complete stretching and toning (non-aerobic) exercise (3 units of 45 min/week) and the third group will act as the control group. Change in all outcomes will be measured at baseline (T0), after six months (T1) and after 12 months (T2). The primary outcome, cognitive performance, will be determined by a neuropsychological test battery (CogState battery, Trail Making Test and Verbal fluency). Secondary outcomes include Montreal Cognitive Assessment (MoCA), cardiovascular fitness, physical activity, structural changes of the brain, quality of life measures and measures of frailty. Furthermore, outcome variables will be related to genetic variations on genes related to neurogenesis and epigenetic changes in these genes caused by the exercise intervention programme.

Discussion

The results will add new insights into the prevailing notion that exercise may slow the rate of cognitive decline in MCI.

Trial registration

ClinicalTrials.gov NCT02913053

Self-rated health predicts decline in instrumental activities of daily living among high-functioning community-dwelling older people

Background

self-rated health (SRH) is a strong predictor of mortality, but it is unclear if SRH independently predicts a decline in instrumental activities of daily living (IADL).

Objective

to verify whether SRH is an independent predictor of IADL decline.

Design

a population-based longitudinal cohort study.

Setting

two local municipalities in Nara, Japan.

Subjects

community-dwelling older adults 65 years or older (2,638 males and 3,346 females) with independent IADL at baseline.

Methods

SRH was assessed using a single-item measure. IADL was assessed using the Tokyo Metropolitan Institute of Gerontology Index of Competence. Multiple logistic regressions were used to examine the association of SRH with IADL decline.

Results

during the 3-year follow-up, 13.2% of males and 8.2% of females developed IADL decline. After adjusting for age, family, body mass index, economic situations, chronic diseases, alcohol, smoking, depression, cognitive functioning and ADL, poorer SHR was significantly associated with IADL decline in both genders. Compared with very good SRH, the odds ratios of good, poor and very poor were 1.69 (95% confidence interval: 1.14-2.51), 2.10 (1.25-3.55) and 3.11 (1.50-6.45) for males, and 0.88 (0.54-1.42), 2.08 (1.16-3.75) and 3.42 (1.57-7.42) for females, respectively. Significant associations were not affected by chronic diseases, cognitive functioning or ADL but observed only among subjects aged 65-74 or those without depression.

Conclusions

this study confirms that SRH is an independent predictor of IADL decline among non-disabled community-dwelling older adults. Our findings suggest that SRH is an effective tool for identifying older people with future risk for IADL decline, particularly among the young-old or those without depression.

Association Between Social Participation and 3-Year Change in Instrumental Activities of Daily Living in Community-Dwelling Elderly Adults

OBJECTIVES

To investigate whether social participation (SP) in older adults is associated with ability to perform instrumental activities of daily living (IADLs).

DESIGN

Prospective cohort study.

SETTING

Two local municipalities of Nara, Japan.

PARTICIPANTS

Individuals aged 65 to 96 (n = 2,774 male, n = 3,586 female) free of IADL disability at baseline.

MEASUREMENTS

SP and IADLs were assessed using self-administered questionnaires. SP was categorized into five types and assessed using the number and type of social activities. IADLs were evaluated using the Tokyo Metropolitan Institute of Gerontology Index of Competence. Logistic regression analysis stratified according to sex was used to examine change in IADLs according to SP, with nonparticipation as a reference.

RESULTS

During the 3-year follow-up, 13.6% of men and 9.0% of women reported IADL decline. After adjusting for age, family structure, body mass index, pension, occupation, medical treatment, self-rated health, drinking, smoking, depression, cognitive function, and activities of daily living, participation in various social activities was inversely associated with change in IADLs in women but not men. Participation in the following types of social activities had significant inverse associations with IADL disability: hobby clubs (odds ratio (OR) = 0.68, 95% confidence interval (CI) = 0.49-0.94) for men and local events (OR = 0.68, 95% CI = 0.48-0.95), hobby clubs (OR = 0.53, 95% CI = 0.36-0.79), senior citizen clubs (OR = 0.74, 95% CI = 0.56-0.97), and volunteer groups (OR = 0.56, 95% CI = 0.32-0.99) for women.

CONCLUSION

Participation in a variety of different types of social activities was associated with change in IADLs over the 3 years of this study in women, and participation in hobby clubs was associated with change in IADLs in men and women. Recommending that community-dwelling elderly adults participate in social activities appropriate for their sex may promote successful aging.

Time Perspective as a Potential Tool for Psychotherapeutic Intervention

This pilot study shows (1) similarities among adults in the patterns of organization of the past, present, and future based upon individual imagery and spatial representation of their personal perspective of their lives and (2) a relationship between perceived health and future-orientation, i.e., how far into their future a person imagines self still to be alive. The data support the concept of a personal spatial representation of past, present, and future (a timeline) and sets the foundation for the development of psychological interventions based on this representation for 50 participants (23 men and 27 women). When asked to visualize their personal timelines, subjects indicated a general pattern of their future spatially located to the right and in front of themselves; their past was generally located to the left or behind. The distance into the future seen by participants initially ( M ± SE) were 8 ± 2.3 yr., 16 ± 2.8 yr., and 27 ± 5.5 yr. for the self-reported health status of “poor”, “good”, and “excellent”, respectively ( p <.05). Research must firmly establish general patterns of spatial representations of time (timeliness) across cultures, age, race, and beliefs, and explore implications for treatment.

Leisure Activities and Quality of Life among the Oldest Old in Sweden

Drawing on Rowe and Kahn’s (1998) notion that “engagement with life” is a critical component of successful aging, this study tested whether change in leisure activities over a ten year period was associated with retrospectively assessed change in quality of life among older people in Sweden. Hypotheses were tested using a nationally rep resentative sample of 324 older Swedes living in the community, surveyed in 1981 and 1992. Fifteen leisure activities were divided into six domains: culture-entertainment, productive-personal growth, outdoor-physical, recreation-expressive, friendship, and formal-group. Ordered logit analysis revealed that those increasing their activity participation across domains tended to perceive an improvement in their life conditions. This effect was particularly strong among older adults who became widowed, developed functional impairments, and had relatively low contact with family. The results suggest that maximizing activity participation is an adaptive strategy taken by older adults to compensate for social and physical deficits in later life.

Building a Foundation for Systems Change: Increasing Access to Physical Activity Programs for Older Adults

Although 25% of U.S. adults are physically inactive, this percentage increases dramatically for older adults. Organizational change theory guided a state health department in identifying system gaps and developing strategies to expand programming for seniors. A survey of provider agencies in New Jersey assessed (a) capacity for physical activity programs for older adults, (b) accessibility of programs, and (c) barriers to providing programs. One hundred sixty agencies provided physical activity programs to almost 184,000 individuals annually. Fewer than one half of the agencies provided exercise programs for people with disabilities, and only 44% provided in-home programs. Eighty-two percent of program providers wanted to expand programming but cited lack of trained instructors and peer leaders, inadequate facility space, insufficient funding, and limited transportation resources as barriers. Sustaining older adult behavior change requires infrastructure that will ensure access to diverse physical activities. This article provides strategies to expand access to physical activity programs for older adults.

A Didactic Example of Latent Curve Analysis Applicable to the Study of Aging

Objectives: This article provides an example and application of growth curve analysis for modeling individual differences in behavioral rates of change in aging. The latent curve modeling approach to the analysis of change allows researchers to describe change as a continuous process and to address issues related to individual differences in change over time. Methods: Data are used from the Longitudinal Study of Aging (LSOA) on change in activities of daily living (ADLs) in the elderly. Analyses involved direct maximum likelihood estimation using complete and incomplete cases. Results: It is possible to statistically capture developmental changes. Change in participants’ ADLs was characterized by a negative linear trajectory, and there was evidence of significant individual variability in the starting point of the trajectory and the rate of change over time. Discussion: The article discusses the utility of latent curve analysis in aging research as well as other techniques that are extensions of latent curve analysis.

The Relationship Between Reasons for Activity and Older Adult Well-Being

The purpose of this study was to determine the relationship between activity and older adult well-being by examining the reasons for older adult activity as moderators of the relationship. A sample of 249 older adults completed a questionnaire that contained demographic, health, and activity items. Participants indicated whether they engaged in each of 44 activities, how routinely they engaged in each, and the reasons for each activity. Results from hierarchical regression analyses showed that activities engaged in for social reasons positively related to wellbeing, and activities engaged in to pass the time negatively related to well-being. Total number of activities and the number of routine activities did not relate to well-being. These findings suggest that engaging in more activities does not necessarily enhance well-being, and that the reasons for engaging in activities are important for older adult well-being.

Social Participation and the Prevention of Decline in Effectance among Community-Dwelling Elderly: A Population-Based Cohort Study

BACKGROUND

We examined the association between a decline in effectance and social participation (SP) from the perspective of the number and the type of SP in a prospective cohort study.

METHODS

Included in this analysis were community-dwelling elderly aged ≥ 65 without dependency on the basic activities of daily living and reporting a perfect baseline effectance score (n = 4,588; mean age 72.8 ± 5.7). SP was categorized into 5 types: neighborhood associations, hobby groups, local event groups, senior citizen clubs, and volunteer groups. Effectance was evaluated using the Tokyo Metropolitan Institute of Gerontology Index of Competence. Using logistic regression analysis, odds ratio (OR) and a 95% confidence interval (CI) for a decline in effectance were calculated. Age, family, BMI, pensions, medical history, medications, alcohol, smoking, cognitive function, depression, social support, ADL, and IADL were used as covariates.

RESULTS

During the 3-year follow-up, 17.8% of eligible participants reported a decline in effectance. After adjustment for covariates, participation in various groups was associated with the preservation of effectance for both genders. Regarding the type of SP, among females, participation in neighborhood associations (OR: 0.62, 95%CI: 0.48-0.81), hobby groups (0.58, 0.43-0.77), local event groups (0.63, 0.47-0.86), and volunteer groups (0.53, 0.35-0.82) was inversely associated with a decline in effectance. Among males, the beneficial effect was more likely limited to hobby groups (0.59, 0.43-0.81) and volunteer groups (0.57, 0.39-0.83).

CONCLUSIONS

Our results suggest that participation in a variety of social groups is effective for maintenance of older people's effectance, while the beneficial effect of each type of SP on effectance is stronger for females than for males. Recommending community-dwelling elderly to participate in social groups appropriate for their gender may be effective for successful aging.

Comparative effects of 2 aqua exercise programs on physical function, balance, and perceived quality of life in older adults with osteoarthritis

BACKGROUND

Osteoarthritis (OA) is a degenerative joint disease, which affects a large number of older adults. Many older adults with OA are physically inactive, which can contribute to reduced functional capability, quality of life, and an increased risk of falls. Although hydrotherapy is often recommended for older adults with OA, less is known about aqua fitness (AF), a widely available form of aqua-based exercise.

PURPOSE

To compare the effect of an AF program and a seated aqua-based exercise program on a range of functional measures and quality of life among older adults with OA.

METHODS

Thirty-five older adults with OA were allocated to an AF group or an active control group who performed seated exercises in warm water for 12 weeks. The primary outcome measure was the timed up-and-go (TUG) test; other measures included step test, sit-to-stand (STS) test, handgrip strength test, 400-m walk test, Arthritis Impact Measurement Scale-Short Form (AIMS2-SF), and Falls Efficacy Scale-International (FES-I).

RESULTS

FES-I scores improved significantly in the AF group compared with the control group (P=0.04). Within-group analysis indicated both groups significantly improved their 400-m walk time (P=0.04) and that the AF group significantly improved its step test right (P=0.02) and left (P=0.00) and the AIMS2-SF total score (P=0.02). No significant change in TUG, STS, or handgrip strength was observed for either group.

CONCLUSIONS

Aqua fitness may offer a number of positive functional and psychosocial benefits for older adults with OA, such as a reduced fear of falling and increased ability to perform everyday tasks.

Effects of Square-Stepping Exercise on balance and depressive symptoms in older adults

The aim of this study was analyze the effects of Square-Stepping Exercise (SSE) on depressive symptoms, balance and functional mobility in older adults. Participants were distributed into two groups: Trained Group (TG), who performed a 16-week intervention with SSE and Control Group (CG), who performed only evaluations. The Berg Balance Scale and Time Up and Go Test (TUG) constituted the evaluation protocol to verify balance and functional mobility. Geriatric Depression Scale-short form (GDS-15) was applied for measure depressive symptoms. Evaluations were realized pre and post 16-week. Significant improvements were observed in the TG with the maintenance of GDS-15 scores and on the time to perform the TUG test which reflects better functional mobility than the CG. This could lead to conclude that the SSE is an important tool for improve balance, prevent falls and decrease depression symptoms.

Access to mobile communications by older people

AIM

To investigate how older people effectively identify, select and learn to use mobile communications technologies to enhance communication and safety, and support independent living.

METHODS

One hundred and fifty-three older South Australians participated in a purpose-designed survey questionnaire.

RESULTS

Older people relied on family and friends for information and advice (76%), and their children's assistance with buying (45%) and learning to use (48%) new technology. The most preferred learning method was face-to-face training (56%). Less than half (44%) were interested in trying out new designs/applications, functions and capabilities that could assist with independent living. The highest need was for personal security and emergencies (88%).

CONCLUSIONS

Findings suggest that the family and friends of older people play an important role in identifying, selecting and learning to use mobile communication technologies. The safety and emergency capabilities of mobile communications technologies were more important than having functions that could assist with independent living.

Socioeconomic status, comorbidity, activity limitation, and healthy life expectancy in older men and women: a 6-year follow-up study in Japan

This study aimed to explore the structural contributions of socioeconomic status (SES), comorbidity, and activity limitation to the healthy life expectancy (HALE) of Japanese suburban elderly. A questionnaire survey was distributed to all residents aged 65 years and older in Tama City, Tokyo, in 2001; a follow-up study was conducted in 2004; and individual vital status data from the municipal residents' registry were tracked until 2007. In all, 7,905 respondents were included for analysis. Data analysis was performed by structural equation modeling (SEM). The data were well fit by the models, and HALE was found to be well explained by SES, comorbidity, and activity limitation (R (2) = .59 for men and R (2) = .71 for women). In conclusion, elderly people with higher SES were more likely to live longer with good self-rated health, via living with less chronic diseases and better performance in daily living activities, especially for elderly women.

Lower cumulative stress is associated with better health for physically active adults in the community

Both cumulative adversity, an individual's lifetime exposure to stressors, and insufficient exercise are associated with poor health outcomes. The purpose of this study was to ascertain whether exercise buffers the association of cumulative adverse life events (CALE) with health in a community-wide sample of healthy adults (ages 18-50 years; women: n = 219, 29.5 ± 9.2 years; men: n = 176, 29.4 ± 8.7 years, mean ± standard deviation). Participants underwent the Cumulative Adversity Interview, which divides life events into three subsets: major life events (MLE), recent life events (RLE) and traumatic experiences (TLE). These individuals also completed the Cornell Medical Index and a short assessment for moderate or greater intensity exercise behavior, modified from the Nurses' Health Study. Results indicated that higher CALE was associated with greater total health problems (r = 0.431, p < 0.001). Interactions between stress and exercise were not apparent for RLE and TLE. However, at low levels of MLE, greater exercise was related to fewer total, physical, cardiovascular and psychological health problems (p value <0.05). Conversely, at high levels of MLE, the benefits of exercise appear to be absent. Three-way interactions were observed between sex, exercise and stress. Increased levels of exercise were related to better physical health in men, at all levels of CALE. Only women who reported both low levels of CALE and high levels of exercise had more favorable physical health outcomes. A similar pattern of results emerged for RLE. Together, these data suggest that increased exercise is related to better health, but these effects may vary by cumulative stress exposure and sex.

Psychosocial influences in onset and progression of late life disability

OBJECTIVES

Disability in older age has been related to several psychosocial characteristics, including social networks, social engagement, and depression. However, the exact role of these characteristics in the disablement process remains uncertain.

METHOD

Data come from a population-based study of black and white adults aged ≥65 years (N = 5,306), with up to 9 yearly data on the primary outcome measure, activities of daily living (ADL) disability. We use a two-part regression model to simultaneously test the association between each psychosocial characteristic and both onset and progression of ADL disability, while controlling for demographic variables, education, and mode of interview in the first model and health status variables in the second model.

RESULTS

Social networks were negatively associated with onset of ADL disability but not associated with progression. The association became non-significant after adjustment for health status. Social engagement was negatively associated with both onset and progression of disability, even after adjustment for health status. Depression was significantly associated with onset of disability after adjustment for health status but not with progression of disability.

DISCUSSION

The results suggest a differential role for psychosocial characteristics in the disablement process, with generally stronger associations for transitions to onset of ADL disability than progression of ADL disability.

Influence of life-style choices on locomotor disability, arthritis and cardiovascular disease in older women: prospective cohort study

BACKGROUND

many chronic conditions have their roots in modifiable health-related behaviours.

METHODS

a total of 4,286 women aged 60-79 in the British Women's Heart and Health Study are followed up for incident cardiovascular disease (CVD), arthritis and locomotor disability over 7 years. Self-reported smoking, alcohol consumption, exercise and fruit intake at baseline is also available. Associations between these and each outcome, plus a composite outcome, are investigated in those without prevalent disease at baseline using logistic regression with multiple imputation.

RESULTS

ex-smokers and current smokers showed increased odds of locomotor disability, CVD and the combined outcome. Less regular exercisers had increased odds of all outcomes, particularly locomotor disability. There was no evidence that alcohol or fruit intake was associated with any outcome. Population attributable fractions (PAFs) suggest in addition to the influence of smoking and alcohol, exercise accounts for 9% of incident locomotor disability, 5% of CVD and 4% of arthritis. All four lifestyle factors combined account for 17% of incident locomotor disability and 9% of incident conditions combined.

CONCLUSIONS

never smokers and regular exercisers had substantially reduced odds of 7-year disability onset. Low PAFs suggest changes in health-related behaviours in older women would result in only modest reductions in common chronic conditions.

Dose-response relationships between physical activity, social participation, and health-related quality of life in colorectal cancer survivors

PURPOSE

The purpose of this study was to examine the relationships between physical activity (PA), social participation, and health-related quality of life (HQOL) in older, long-term colorectal cancer survivors.

METHODS

Male and female colorectal cancer survivors (n = 1,768), aged ≥65 and ≥5 years post-diagnosis, completed surveys on their current PA, social participation, HQOL, health history, and relevant covariates. Analysis of covariance was used to evaluate the cross-sectional relationship between PA and social participation with the SF-36 subscales, as well as the physical component summary score (PCS) and mental health component summary score (MCS).

RESULTS

The final analytic sample (n = 832) was 81.5 ± 5.8 years and 8.2 ± 1.7 years post-diagnosis (mean ± SD). Meeting the current recommendation of 150 min/week of PA was associated with higher PCS (p < 0.001) but not MCS (p = 0.30). Engaging in any social participation, vs. none, was associated with MCS (p = 0.003), but not PCS (p = 0.13). There was a dose-response relationship between moderate-vigorous-intensity PA and PCS (p trend<0.001). Light-intensity PA was not associated with either summary score after adjustment for moderate-vigorous PA (p > 0.05), but in survivors performing no higher-intensity PA, it was associated with both (p < 0.01, p = 0.02, respectively). Participants reporting greater amounts of both planned exercise and non-exercise PA had significantly higher PCS (p trend<0.01, p trend < 0.01, respectively). Individuals participating in greater weekly hours of social participation had higher PCS and MCS (p trend<0.05) than those participating in less.

CONCLUSIONS

Among older, long-term colorectal cancer survivors, PA is related to their physical health, while social participation is predominantly related to their mental health.

IMPLICATIONS FOR CANCER SURVIVORS

Older colorectal cancer survivors who participate socially and are engaged in PA, even non-exercise and light-intensity activities, have higher levels of physical and mental health.