Let's Enjoy an Evening on the Couch? A Daily Life Investigation of Shared Problematic Behaviors in Three Couple Studies

Symptom-system fit theory proposes that problematic behaviors are maintained by the social system (e.g., the couple relationship) in which they occur because they help promote positive relationship functioning in the short-term. Across three daily life studies, we examined whether mixed-gender couples reported more positive relationship functioning on days in which they engaged in more shared problematic behaviors. In two studies (Study 1: 82 couples who smoke; Study 2: 117 couples who are inactive), days of more shared problematic behavior were accompanied by higher daily closeness and relationship satisfaction. A third study with 79 couples post-stroke investigating unhealthy eating failed to provide evidence for symptom-system fit. In exploratory lagged analyses, we found more support for prior-day problematic behavior being associated with next-day daily relationship functioning than vice-versa. Together, findings point to the importance of a systems perspective when studying interpersonal dynamics that might be involved in the maintenance of problematic behaviors.

Daily Rumination-Affect Associations in Dyads During the COVID-19 Pandemic

OBJECTIVES

Negative and repetitive self-oriented thinking (rumination) is associated with lower well-being and health. The social context of rumination remains underexplored and mostly centers on marital relationships. To embrace the diversity of older adult relationships, this study includes a range of different relationships (e.g., spouses, siblings, friends, etc.) and examines the role of rumination by close others on individual well-being during the coronavirus disease 2019 pandemic.

METHODS

Using daily diary data from 140 Canadian older adults (M = 72.21 years, standard deviation [SD] = 5.39, range: 63-87 years, 47% women, 71% university educated) and a close other of their choice (M = 59.95 years, SD = 16.54, range: 18-83 years, 78% women, 81% university educated), this project builds on past research examining daily life rumination dynamics from a dyadic perspective. For 10 days, both dyad members reported their daily rumination and affect quality in the evening.

RESULTS

Multilevel models replicate past work showing that individual rumination was associated with higher negative affect (within-person: b = 0.27, p < .001, between-person: b = 0.57, p < .001) and lower positive affect (within-person: b = -0.18, p < .001, between-person: b = -0.29, p < .001). Importantly, we additionally observed that partner rumination was associated with higher negative affect (b = 0.03, p = .038) and lower positive affect (b = -0.04, p = .023), highlighting the social context of rumination.

DISCUSSION

Findings illustrate the significance of rumination for the self and others and underline the merit of taking a dyadic perspective on what is typically viewed as an individual-level phenomenon.

Daily solitude and well-being associations in older dyads: Evidence from daily life assessments

Older adults spend significant time by themselves, especially since COVID-19. Solitude has been associated with positive and negative outcomes. Partners need to balance social connectedness with time for one's own needs. This project examines how individual and partner solitude are associated with daily affect and relationship quality in dyads of older adults and a close other. One-hundred thirty-six older adults plus a close other rated their relationship quality and reported affect, solitude, and its characteristics (desired and bothersome) every evening for 10 days. Over and above overall associations, individual and partner effects emerged; when individual desired solitude was up, participants reported more positive affect and their partners less negative affect. When bothersome solitude was up, participants and their partners alike reported more negative affect and less positive affect. Desired solitude was associated with more support, whereas bothersome solitude was associated with less partner support. Findings provide further evidence on the potential benefits of solitude, highlighting the importance of considering the social context of what is often believed to be an individual-level phenomenon.

Everyday Pain in Middle and Later Life: Associations with Daily and Momentary Present-Moment Awareness as One Key Facet of Mindfulness

This study investigated everyday associations between one key facet of mindfulness (allocating attention to the present moment) and pain. In Study 1, 89 community-dwelling adults (33-88 years; Mage = 68.6) who had experienced a stroke provided 14 daily end-of-day present-moment awareness and pain ratings. In Study 2, 100 adults (50-85 years; Mage = 67.0 years) provided momentary present-moment awareness and pain ratings three times daily for 10 days. Multi-level models showed that higher trait present-moment awareness was linked with lower overall pain (both studies). In Study 1, participants reported less pain on days on which they indicated higher present-moment awareness. In Study 2, only individuals with no post-secondary education reported less pain in moments when they indicated higher present-moment awareness. Findings add to previous research using global retrospective pain measures by showing that present-moment awareness might correlate with reduced pain experiences, assessed close in time to when they occur.

Daily Affect and Daily Prospective Memory in People after Stroke and Their Partners: The Moderating Role of Resting Heart Rate

INTRODUCTION

Experimental research suggests that affect may influence prospective memory performance, but real-life evidence on affect-prospective memory associations is limited. Moreover, most studies have examined the valence dimension of affect in understanding the influence of affect on cognitive performance in daily life, with insufficient consideration of the arousal dimension. To maximize ecological validity, the current study examined the relationships between daily affect and daily prospective memory using repeated daily assessments and the role of resting heart rate on these relationships. We examined both valence and arousal of daily affect by categorizing affect into four dimensions: high-arousal positive affect, low-arousal positive affect, high-arousal negative affect, and low-arousal negative affect.

METHOD

We examined existing data collected from community-dwelling couples, of which at least one partner had a stroke history. The analytic sample included 111 adults (Mage = 67.46 years, SD = 9.64; 50% women) who provided 1,274 days of data. Among the participants, 58 were living with the effects of a stroke and 53 were partners. Participants completed daily event-based prospective memory tasks (in morning and/or evening questionnaires), reported daily affect in the evening, and wore a wrist-based Fitbit device to monitor resting heart rate over 14 consecutive days.

RESULTS

Results from multilevel models show that, within persons, elevated high-arousal negative affect was associated with worse daily prospective memory performance. In addition, lower resting heart rate attenuated the inverse association between high-arousal negative affect and lowered prospective memory performance. We did not find significant associations of high- or low-arousal positive affect and low-arousal negative affect with daily prospective memory.

DISCUSSION

Our findings are in line with the resource allocation model and the cue-utilization hypothesis in that high-arousal negative affect is detrimental to daily prospective memory performance. Lower resting heart rate may buffer individuals' prospective memory performance from the influence of high-arousal negative affect. These findings are consistent with the neurovisceral integration model on heart-brain connections, highlighting the possibility that cardiovascular fitness may help maintain prospective memory into older adulthood.

Having a Good Time Together: The Role of Companionship in Older Couples' Everyday Life

INTRODUCTION

Companionship (i.e., enjoyable shared activities) is associated with higher emotional and relational well-being. However, the role of companionship for emotional well-being and relationship satisfaction in older couples' everyday life is not well understood. This article studies time-varying associations of companionship with emotional and relational well-being as older couples engage in their everyday life.

METHODS

Participants provided three data points a day over 7 days using electronic surveys that were simultaneously completed by both partners. A total of 118 older heterosexual couples reported momentary companionship, positive and negative affect, and closeness. Data were analyzed using an intensive longitudinal dyadic score model.

RESULTS

Couples with higher average companionship showed lower overall negative affect, more overall positive affect, and higher overall closeness. During moments of elevated momentary companionship, partners reported more positive affect, less negative affect, and higher closeness. Regarding between-couple partner differences, i.e., when the female partner's momentary companionship was higher on average than the male partner's momentary companionship, the female partner also showed less negative affect, more positive affect, and higher closeness than the male partner. During moments in which the female partner's momentary companionship was higher than the male partner's momentary companionship, the female partner showed less negative affect, more positive affect, and higher closeness than the male partner.

DISCUSSION

Older couples show a consistent link between companionship and emotional well-being and closeness in everyday life emphasizing the importance of studying companionship in close relationships.

Sleep efficiency and the metabolic risk score in very active older women and men

Study Objectives

Sleep disruption is a risk factor for obesity, diabetes, and cardiovascular disease in older adults. How physical activity (PA) interacts with the negative cardiometabolic effects of poor sleep is not known. We objectively measured sleep efficiency (SE) in very active older adults and examined the association between SE and a continuous Metabolic Syndrome Risk Score (cMSy).

Methods

Very active older adults (age ≥65 years) from a Master's Ski Team (Whistler, Canada) were recruited. Each participants wore an activity monitor (SenseWear Pro) continuously for 7 days to provide measures of both daily energy expenditure (metabolic equivalents, METs) and SE. All components of the metabolic syndrome were measured and a principal component analysis was used to compute a continuous metabolic risk score (cMSy, sum of eigenvalues ≥1.0).

Results

A total of 54 participants (mean age 71.4 years, SD 4.4 years, and 24 men and 30 women) were recruited and had very high PA levels (>2.5 h per day of exercise). Initially, there was no significant association between SE and cMSy (p = 0.222). When stratified by biological sex, only men showed a significant negative association between SE and cMSy (Standardized β = -0.364 ± 0.159, p = 0.032).

Conclusions

Only older men show a significant negative association between poor SE and increased cardiometabolic risk, despite high levels of PA.

Defining and implementing patient-centered care: An umbrella review

OBJECTIVES

Patient- or person-centered care (PCC) integrates people's preferences, values, and beliefs into health decision-making. Gaps exist for defining and implementing PCC; therefore, we aimed to identify core elements of PCC and synthesize implementation facilitators and barriers.

METHODS

We conducted an overview of systematic reviews (umbrella review) and included peer-reviewed literature for adults in community/primary care settings. Two reviewers independently screened at Level 1 and 2, extracted data and appraised the quality of reviews. Three reviewers conducted a thematic analysis, and we present a narrative synthesis of findings.

RESULTS

There were 2371 citations screened, and 10 systematic reviews included. We identified 10 PCC definitions with common elements, such as patient empowerment, patient individuality, and a biopsychosocial approach. Implementation factors focused on communication, training healthcare providers, and organizational structure.

CONCLUSIONS

We provide a synthesis of key PCC elements to include in a future definition, and an overview of elements to consider for implementing PCC into practice. We extend existing literature by identifying clinician empowerment and culture change at the systems-level as two future areas to prioritize to enable routine integration of PCC into practice.

PRACTICE IMPLICATIONS

Findings may be useful for researchers and or health providers delivering and evaluating PCC.

Partner Contributions to Goal Pursuit: Findings From Repeated Daily Life Assessments With Older Couples

OBJECTIVES

This study focuses on the role of spouses for facilitating goal progress during a phase in life when individual resources for goal pursuit are particularly limited. Specifically, we examined the moderating role of relationship characteristics in old age for time-varying partner involvement-goal progress associations as couples engaged in their everyday lives. We also assessed time-varying associations between everyday goal progress, effectiveness of partner contributions, and spousal satisfaction with this contribution.

METHODS

We used multilevel modeling to analyze data from 118 couples (Mage = 70 years, SD = 5.9; 60-87 years, 50% women; 57% White). Both partners reported their personal goals and provided information on relationship satisfaction, conflict, and support. They also provided simultaneous ratings of everyday goal progress, effort, partner involvement as well as effectiveness of and satisfaction with partner contribution up to three times daily over 7 days.

RESULTS

In line with expectations, higher relationship satisfaction and support and lower conflict were associated with higher goal progress when the partner was involved in goal pursuit. Both effectiveness of and satisfaction with partner contributions were positively associated with everyday goal progress.

DISCUSSION

Whether partner involvement is beneficial for goal progress depends on characteristics of the relationship as well as what partners actually do in everyday life. This highlights the importance of considering both stable person characteristics as well as time-varying processes to capture the complexity of goal pursuit in older couples.

Bedside tests of muscle mass in older adults with Type 2 diabetes

<abstract><sec> <title>Objective</title> <p>Diabetes and sarcopenia often coexist in older adults, suggesting a possible bidirectional association. Available bedside measures of muscle mass consist of bedside ultrasound (MT, quadriceps muscle thickness) and Bioelectrical Impedance Analysis (BIA). We examined the association between ultrasound measures and BIA measures of muscle in older adults with measures of strength, performance and frailty in older adults with diabetes.</p> </sec><sec> <title>Design</title> <p>Cross-sectional study.</p> </sec><sec> <title>Methods</title> <p>81 subjects (age ≥ 65; mean age 80.8 ± 0.6 years, 27 women, 53 men) were recruited sequentially from geriatric medicine clinics. Each subject had Lean Body Mass (LBM, by BIA, in kg), grip strength, gait speed, Cardiovascular Health Study index (frailty) and MT (in cm) measured. All initial models were adjusted for biological sex.</p> </sec><sec> <title>Results</title> <p>In our final parsimonious models, only MT (as opposed to LBM) showed a significant correlation with grip strength (Standardized β = 0.217 ± 0.078; p = 0.007) and frailty (Standardized β = 0.276 ± 0.109; p = 0.013). Neither MT or LBM showed a significant association with subject performance (gait speed).</p> </sec><sec> <title>Conclusions</title> <p>Unlike BIA, bedside ultrasound measures of muscle thickness showed strong associations with both grip strength and frailty in the older adult population with diabetes, suggesting that bedside measures of MT might be a more clinically useful modality to assess muscularity in this patient population. Neither BIA or MT measures of subject muscularity showed any association with our performance indicator (gait speed).</p> </sec></abstract>

Anosmia-related internet search and the course of the first wave of the COVID-19 pandemic in the United States

Background

The current pandemic of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) was first reported in Wuhan, China. Although the first case in the United States was reported on Jan 20, 2020 in Washington, the early pandemic time course is uncertain. One approach with the potential to provide more insight into this time course is the examination of search activity. This study analyzed US search data prior to the first press release of anosmia as an early symptom (March 20, 2020).

Methods

Daily internet search query data was obtained from Google Trends (September 20th to March 20th for 2015 to 2020) both for the United States and on a state-by-state basis. Normalized anosmia-related search activity for the years prior to the pandemic was averaged to obtain a baseline level. Cross-correlations were performed to determine the time-lag between changes in search activity and SARS-CoV-2 cases/deaths.

Results

Only New York showed both significant increases in anosmia-related terms during the pandemic year as well as a significant lag (6 days) between increases in search activity and the number of cases/deaths attributed to SARS-CoV-2.

Conclusions

There is no evidence from search activity to suggest earlier spread of SARS-CoV-2 than has been previously reported. The increase in anosmia-related searches preceded increases in SARS-CoV-2 cases/deaths by 6 days, but this was only significant over the background noise of searches for other reasons in the setting of a very large outbreak (New York in the spring of 2020).

•

Recent work has suggested using digital epidemiology to follow pandemics.

•

In our view, these previous studies have several methodological errors.

•

They used correlations long after anosmia symptoms were well documented in the media.

•

We demonstrated significant issues with digital surveillance during such a high interest event.

•

A large signal is required to overcome noise introduced by searches for other reasons.

Evaluation of Clinical Practice Guidelines on Fall Prevention and Management for Older Adults: A Systematic Review

Importance

With the global population aging, falls and fall-related injuries are ubiquitous, and several clinical practice guidelines for falls prevention and management for individuals 60 years or older have been developed. A systematic evaluation of the recommendations and agreement level is lacking.

Objectives

To perform a systematic review of clinical practice guidelines for falls prevention and management for adults 60 years or older in all settings (eg, community, acute care, and nursing homes), evaluate agreement in recommendations, and identify potential gaps.

Evidence Review

A systematic review following Preferred Reporting Items for Systematic Reviews and Meta-analyses statement methods for clinical practice guidelines on fall prevention and management for older adults was conducted (updated July 1, 2021) using MEDLINE, PubMed, PsycINFO, Embase, CINAHL, the Cochrane Library, PEDro, and Epistemonikos databases. Medical Subject Headings search terms were related to falls, clinical practice guidelines, management and prevention, and older adults, with no restrictions on date, language, or setting for inclusion. Three independent reviewers selected records for full-text examination if they followed evidence- and consensus-based processes and assessed the quality of the guidelines using Appraisal of Guidelines for Research & Evaluation II (AGREE-II) criteria. The strength of the recommendations was evaluated using Grades of Recommendation, Assessment, Development, and Evaluation scores, and agreement across topic areas was assessed using the Fleiss κ statistic.

Findings

Of 11 414 records identified, 159 were fully reviewed and assessed for eligibility, and 15 were included. All 15 selected guidelines had high-quality AGREE-II total scores (mean [SD], 80.1% [5.6%]), although individual quality domain scores for clinical applicability (mean [SD], 63.4% [11.4%]) and stakeholder (clinicians, patients, or caregivers) involvement (mean [SD], 76.3% [9.0%]) were lower. A total of 198 recommendations covering 16 topic areas in 15 guidelines were identified after screening 4767 abstracts that proceeded to 159 full texts. Most (≥11) guidelines strongly recommended performing risk stratification, assessment tests for gait and balance, fracture and osteoporosis management, multifactorial interventions, medication review, exercise promotion, environment modification, vision and footwear correction, referral to physiotherapy, and cardiovascular interventions. The strengths of the recommendations were inconsistent for vitamin D supplementation, addressing cognitive factors, and falls prevention education. Recommendations on use of hip protectors and digital technology or wearables were often missing. None of the examined guidelines included a patient or caregiver panel in their deliberations.

Conclusions and Relevance

This systematic review found that current clinical practice guidelines on fall prevention and management for older adults showed a high degree of agreement in several areas in which strong recommendations were made, whereas other topic areas did not achieve this level of consensus or coverage. Future guidelines should address clinical applicability of their recommendations and include perspectives of patients and other stakeholders.

Active With Whom? Examining the Social Context of Physical Activity in Individuals After Stroke and Their Partners

Engaging in regular moderate-to-vigorous intensity physical activity (MVPA) is crucial to reduce future health risk for individuals living with the effects of a stroke and their partners. Although numerous studies point to the importance of social factors in physical activity engagement, little is known about with whom individuals after stroke and their partners engage in physical activity with and whether different physical activity companions are uniquely associated with MVPA. Eighty-nine community-dwelling individuals after stroke (M_age = 68.64, SD = 10.44; 74% male) and 83 partners (M_age = 66.04, SD = 9.91; 24% male) completed 14 consecutive days of daily life assessments that included wearing physical activity monitors (accelerometers) and self-reporting physical activity companions (n = 1,961 days). Results show that average levels of MVPA were correlated between partners (r = 0.38), as were day-to-day MVPA fluctuations (r = 0.34). Importantly, for individuals after stroke, being active with their partner, but not with any other physical activity companion, was linked with elevated daily MVPA. In contrast, for partners of individuals after stroke, engaging in physical activity with a variety of different companions (partner, other family member, friend, colleague) was each associated with higher MVPA in daily life. For both individuals after stroke and their partners being active by oneself (without a companion) on a given day was not associated with elevated MVPA. Findings suggest that interventions that promote physical activity engagement should consider the role of meaningful others, with the partner being particularly key for individuals living with chronic health conditions.

Time-varying associations between everyday affect and cortisol in older couples

OBJECTIVE

Positive as well as negative emotional experiences fluctuate and they may be shared between romantic partners. Everyday emotion dynamics in couples may relate to physiological stress responses, with accompanying cortisol secretion being one pathway through which emotional dynamics can "get under the skin." We examined time-varying relationships of one's own as well as one's partner's sadness and contentment with salivary cortisol. We also examined the degree to which perceptions that the respective partner was sharing their feelings moderates these associations.

METHOD

Both partners of 84 community-dwelling older adult couples (M_age = 71.1 years) provided simultaneous daily life assessments of momentary cortisol, sadness and contentment, and perceptions of shared spousal feelings four times per day over seven consecutive days (up to 28 assessments).

RESULTS

Momentary cortisol was higher in moments when individuals reported higher sadness, lower contentment, and perceptions that their partner was sharing their feelings less than usual. Cortisol was also higher when the partner reported higher sadness and lower contentment but only when one felt that the partner was sharing their feelings more than usual at that moment in time.

CONCLUSIONS

This study illuminates a potential pathway (i.e., perceptions of shared spousal feelings) by which not only one's own emotional experiences, but also those of the spouse, are associated with the activation of physiological stress systems as indicated by elevated cortisol in a sample of older couples. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Social integration after moving to a new city predicts lower systolic blood pressure

Residential mobility is linked to higher incidence of cardiovascular disease (CVD) and mortality. A mechanism by which residential relocation may impact health is through the disruption of social networks. To examine whether moving to a new city is associated with increased CVD risk and whether the extent to which movers rebuild their social network after relocating predicts improved CVD risk and psychosocial well-being, recent movers (n = 26), and age- and sex-matched nonmovers (n = 20) were followed over 3 months. Blood pressure, C-reactive protein/albumin ratio (CRP/ALB), social network size, and psychosocial well-being were measured at intake (within 6 weeks of residential relocation for movers) and 3 months later. Multiple regression indicated higher systolic blood pressure (SBP) for movers (M = 107.42, SD = 11.39), compared with nonmovers (M = 102.37, SD = 10.03) at intake, though this trend was not statistically significant. As predicted, increases in movers' social network size over 3 months predicted decreases in SBP, even after controlling for age, sex, and waist-to-hip ratio, b = -2.04 mmHg, 95% CI [-3.35, -.73]. Associations between increases in movers' social ties and decreases in depressive symptoms and stress were in the predicted direction but did not meet the traditional cutoff for statistical significance. Residential relocation and movers' social network size were not associated with CRP/ALB in this healthy sample. This study provides preliminary evidence for increased SBP among recent movers; furthermore, it suggests that this elevation in CVD risk may decrease as individuals successfully rebuild their social network.

Exercise, Processing Speed, and Subsequent Falls: A Secondary Analysis of a 12-Month Randomized Controlled Trial

BACKGROUND

Strength and balance retraining exercises reduce the rate of subsequent falls in community-dwelling older adults who have previously fallen. Exercise can also improve cognitive function, including processing speed. Given processing speed predicts subsequent falls, we aimed to determine whether improved processing speed mediated the effects of the Otago Exercise Program on the rate of subsequent: (i) total falls, (ii) non-injurious falls, (iii) moderate injurious falls, and (iv) serious injurious falls.

METHOD

A secondary complete case analysis of a 12-month, single-blind, randomized clinical trial among 256 of 344 adults aged at least 70 years who fell in the previous 12 months. Participants were randomized 1:1 to receive usual care plus the Otago Exercise Program (n = 123) or usual care (n = 133), consisting of fall prevention care provided by a geriatrician. The primary outcome was self-reported number of falls over 12 months (ie, rate of falls). Processing speed was assessed at baseline and at 12 months by the Digit Symbol Substitution Test (DSST). Causal mediation analyses were conducted using quasi-Bayesian estimates and 95% confidence intervals.

RESULTS

Exercise significantly reduced the rate of subsequent moderate injurious falls (IRR = 0.49; 95% CI: 0.31, 0.77; p = .002) and improved processing speed (estimated mean difference: 1.16 points; 95% CI: 0.11, 2.21). Improved DSST mediated the effect of exercise on the rate of subsequent moderate injurious falls (estimate: -0.06; 95% CI: -0.15, -0.001; p = .036).

CONCLUSION

Improved processing speed may be a mechanism by which exercise reduces subsequent moderate injurious falls in older adults who fell previously.

CLINICAL TRIALS REGISTRATION NUMBER

ClinicalTrials.gov Protocol Registration System:NCT01029171: https://clinicaltrials.gov/ct2/show/NCT01029171NCT00323596: https://clinicaltrials.gov/ct2/show/NCT00323596.

Joint Goals in Older Couples: Associations With Goal Progress, Allostatic Load, and Relationship Satisfaction

Older adults often have long-term relationships, and many of their goals are intertwined with their respective partners. Joint goals can help or hinder goal progress. Little is known about how accurately older adults assess if a goal is joint, the role of over-reporting in these perceptions, and how joint goals and over-reporting may relate to older partners' relationship satisfaction and physical health (operationally defined as allostatic load). Two-hundred-thirty-six older adults from 118 couples (50% female; M _age = 71 years) listed their three most important goals and whether they thought of them as goals they had in common with and wanted to achieve together with their partner (self-reported joint goals). Two independent raters classified goals as "joint" if both partners independently listed open-ended goals of the same content. Goal progress and relationship satisfaction were assessed 1 week later. Allostatic load was calculated using nine different biomarkers. Results show that 85% self-reported at least one goal as joint. Over-reporting- the perception that a goal was joint when in fact it was not mentioned among the three most salient goals of the spouse - occurred in one-third of all goals. Multilevel models indicate that the number of externally-rated joint goals was related to greater goal progress and lower allostatic load, but only for adults with little over-reporting. More joint goals and higher over-reporting were each linked with more relationship satisfaction. In conclusion, joint goals are associated with goal progress, relationship satisfaction, and health, but the association is dependent on the domain of functioning.

Reshaping the path of vascular cognitive impairment with resistance training: a study protocol for a randomized controlled trial

Background

Subcortical ischemic vascular cognitive impairment (SIVCI) is the most common form of vascular cognitive impairment. Importantly, SIVCI is considered the most treatable form of cognitive impairment in older adults, due to its modifiable risk factors such as hypertension, diabetes mellitus, and hypercholesterolemia. Exercise training is a promising intervention to delay the progression of SIVCI, as it actively targets these cardiometabolic risk factors. Despite the demonstrated benefits of resistance training on cognitive function and emerging evidence suggesting resistance training may reduce the progression of white matter hyperintensities (WMHs), research on SIVCI has predominantly focused on the use of aerobic exercise. Thus, the primary aim of this proof-of-concept randomized controlled trial is to investigate the efficacy of a 12-month, twice-weekly progressive resistance training program on cognitive function and WMH progression in adults with SIVCI. We will also assess the efficiency of the intervention.

Methods

Eighty-eight community-dwelling adults, aged > 55 years, with SIVCI from metropolitan Vancouver will be recruited to participate in this study. SIVCI will be determined by the presence of cognitive impairment (Montreal Cognitive Assessment < 26) and cerebral small vessel disease using computed tomography or magnetic resonance imaging. Participants will be randomly allocated to a twice-weekly exercise program of (1) progressive resistance training or (2) balance and tone training (i.e., active control). The primary outcomes are cognitive function measured by the Alzheimer’s Disease Assessment Scale-Cognitive-Plus (ADAS-Cog-13 with additional cognitive tests) and WMH progression.

Discussion

The burden of SIVCI is immense, and to our knowledge, this will be the first study to quantify the effect of progressive resistance training on cognitive function and WMH progression among adults with SIVCI. Slowing the rate of cognitive decline and WMH progression could preserve functional independence and quality of life. This could lead to reduced health care costs and avoidance of early institutional care.

Trial registration

ClinicalTrials.gov NCT02669394. Registered on February 1, 2016

Supplementary Information

The online version contains supplementary material available at 10.1186/s13063-021-05156-1.

A rapid point-of-care ultrasound marker for muscle mass and muscle strength in older adults

BACKGROUND/OBJECTIVES

Sarcopenia is defined as the gradual age-associated loss of both muscle quantity and strength in older adults, and is associated with increased mortality, falls, fractures and hospitalisations. Current sarcopenia criteria use dual-energy X-ray absorptiometry (DXA) measures of muscle mass, a test that cannot be performed at the bedside, unlike point-of-care ultrasound (PoCUS). We examined the association between ultrasonic measures of muscle thickness (MT, vastus medialis muscle thickness) and measures of muscle quantity and strength in older adults.

METHODS

A total of 150 older adults (age ≥ 65; mean age 80.0 ± 0.5 years, 66 women, 84 men) were recruited sequentially from geriatric medicine clinics. Each subject had lean body mass (LBM, by bioimpedance assay), grip strength, mid-arm biceps circumference (MABC), gait speed and MT measured. All initial models were adjusted for biological sex.

RESULTS

In our final parsimonious models, MT showed a strong significant correlation with all measures of muscle mass, including LBM (Standardised β = 0.204 ± 0.058, R2 = 0.577, P < 0.001) and MABC (Standardised β = 0.141 ± 0.067, R2 = 0.417, P = 0.038). With respect to measures of muscle quality, there was a strong significant correlation with grip strength (Standardised β = 0.118 ± 0.115, R2 = 0.511, P < 0.001) but not with subject performance (gait speed).

CONCLUSIONS

MT showed strong correlations with both measures of muscle mass (LBM and MABC) and with muscle strength (grip strength). Although more work needs to be done, PoCUS shows potential as a screening tool for sarcopenia in older adults.

You're under my skin: Long-term relationship and health correlates of cortisol synchrony in older couples

Growing evidence points to systematic linkages in various physiological indices among romantic partners. This physiological synchrony may facilitate intimacy and connectedness in couples. However, synchronous increases in physiological arousal could also hamper the respective partners' health. To shed light on the consequences of physiological synchrony as well as their potential gender specificity, the current study examined associations between everyday cortisol synchrony and levels of and subsequent changes to relationship satisfaction and non-high-density lipoprotein (non-HDL) cholesterol levels over a 3-year period. Older couples (N = 85; age range = 60-87 years) provided saliva samples for cortisol estimation 5 times daily for 7 days. They further reported their relationship satisfaction and provided a blood sample that was analyzed for lipid levels up to three times in 1-year intervals. Data were analyzed using dyadic growth curve models. Among wives, higher cortisol synchrony was associated with stronger increases in relationship satisfaction over time (b = 1.61, p = .011) but also stronger increases in non-HDL cholesterol levels over time (b = 2.02, p = .042). For husbands, higher cortisol synchrony was not significantly associated with levels or changes of relationship satisfaction but with higher non-HDL cholesterol levels at Time 1 (b = 6.54, p = .015). Synchrony may be important for bonding and relationship maintenance. However, being strongly linked to a romantic partner's physiology may also have health costs due to the accumulative burden of repeated elevations in cortisol, possibly affecting husbands and wives in different ways. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Moving in Sync: Hourly Physical Activity and Sedentary Behavior are Synchronized in Couples

BACKGROUND

Overall time spent in moderate-to-vigorous intensity physical activity (MVPA) and sedentary behavior are both correlated in couples. Knowledge about the nature and psychosocial correlates of such dyadic covariation could inform important avenues for physical activity promotion.

PURPOSE

The present study investigates hour-by-hour covariation between partners (i.e., synchrony) in MVPA and sedentary behavior as partners engage in their daily lives and links it with person-level MVPA/sedentary behavior, temporal characteristics, and relationship variables.

METHODS

We used 7-day accelerometer data from two couple studies (Study 1, n = 306 couples, aged 18-80 years; Study 2, n = 108 couples, aged 60-87 years) to estimate dyadic covariation in hourly MVPA and sedentary behavior between partners. Data were analyzed using coordinated multilevel modeling.

RESULTS

In both studies, hourly MVPA and sedentary behavior exhibited similarly sized dyadic covariation between partners in the low-to-medium range of effects. Higher MVPA synchrony between partners was linked with higher individual weekly MVPA and higher individual weekly sedentary levels, whereas higher sedentary synchrony between partners was associated with higher individual weekly MVPA but lower individual weekly sedentary levels. MVPA and sedentary synchrony were higher in the morning and evening, more pronounced on weekends, and associated with more time spent together, longer relationship duration, and time-varying perceptions of higher partner closeness.

CONCLUSIONS

This study demonstrates that MVPA and sedentary behaviors do not occur in a social vacuum. Instead, they are linked with close others such as partners. Thus, capitalizing on social partners may increase the effectiveness of individual-level physical activity interventions.

Sedentary Time and Metabolic Risk in Extremely Active Older Adults

OBJECTIVE

Increasing evidence suggests that time spent sedentary predicts increasing cardiometabolic risk independent of other physical activity. We objectively measured activity levels in active older adults and examined the association between sedentary behavior and the continuous metabolic syndrome risk score (cMSy).

RESEARCH DESIGN AND METHODS

Older adults (age ≥65 years) were recruited from the Whistler Masters ski team, a group of active older adults who undergo organized group training. Daily activity levels were recorded with accelerometers (SenseWear) worn for 7 days. A compositional approach was used to determine proportion of the time spent sedentary as compared with all other nonsedentary behaviors (isometric log-ratio transformation for time spent sedentary [ILR1]). Waist circumference, triglycerides, HDL, systolic blood pressure, and fasting glucose were measured, and cMSy was calculated using principal component analysis (sum of eigenvalues ≥1.0).

RESULTS

Fifty-four subjects (30 women and 24 men, mean ± SE age 71.4 ± 0.6 years) were recruited. Subjects demonstrated high levels of physical activity (2.6 ± 0.2 h light activity and 3.9 ± 0.2 h moderate/vigorous activity). In our final parsimonious model, ILR1 showed a significant positive association with increasing cMSy (standardized β = 0.368 ± 0.110, R ² = 0.40, P = 0.002), independent of age and biological sex.

CONCLUSIONS

Despite high levels of activity, ILR1 demonstrated a strong association with cMSy. This suggests that even in active older adults, sedentary behavior is associated with increasing cardiometabolic risk.

Point-of-care ultrasound measures of muscle and frailty measures

PURPOSE

Frailty is defined as a syndrome of increased vulnerability due to both age and disease that leads to an inability to cope with acute stressors. There has been growing interest in the surgical and emergency medicine literature in the potential use of Point-of-Care ultrasonic (PoCUS) measures of muscle mass to assess frailty in older adults. Our study examined the association between a simple ultrasonic measure of muscle thickness (MT, vastus medialis muscle thickness) and commonly used frailty measures (Cardiovascular Health Study, CHS; Rockwood Clinical Frailty Scale, RCFS) in older adults.

METHODS

Participants were recruited sequentially from ambulatory geriatric medicine clinics in an academic medical centre (Vancouver General Hospital, Vancouver, Canada). Each subject had MT measured by PoCUS, as well as the CHS index and Rockwood Clinical Frailty Scale.

RESULTS

150 older adults (age ≥ 65; mean age 80.0 ± 0.5 years, 66 women, 84 men) were recruited. In our final parsimonious models, MT showed a weak inverse association with the CHS index (Standardized β = - 0.180 ± 0.080, R² = 0.06, p = 0.027) and no association with the RCFS (p = 0.776). Within the CHS index, most of the association was due to grip strength in men (Standardized β = - 0.326 ± 0.099, R² = 0.26, p = 0.001).

CONCLUSION

Frailty is a multifactorial syndrome, and caution must be used in trying to screen for this condition with a single ultrasonic measure. Further work might indicate associations with a more restricted syndrome, such as sarcopenia.

Blood Pressure Targets for Older Patients-Do Advanced Age and Frailty Really Not Matter?

In 2017, Hypertension Canada removed advanced age and frailty as considerations for caution when deciding on intensive therapy in their guidelines for the diagnosis, risk assessment, prevention, and treatment of hypertension in adults. Dementia is not mentioned. In this commentary, we review why advanced age and frailty were removed, and examine what is currently known about the relationship between hypertension and both incident and prevalent dementia. We make the case that the presence of frailty (especially when severe) and dementia should be considered when deciding on intensive therapy in future iterations of Hypertension Canada guidelines.

Baroreflex function and postprandial hypotension in older adults

PURPOSE

Postprandial hypotension (PPH) is a common but poorly understood etiology for fainting in older adults. One potential mechanism is age-related baroreflex dysfunction. We examined baroreflex function in older adults with PPH and without PPH (noPPH) during a standardized meal test.

METHODS

57 adults (age ≥ 65; 24 PPH, 33 noPPH, mean age 77.9 ± 0.9 years, 54% female) were recruited and had meal tests performed. The baroreflex effectiveness index (BEI, %) and baroreflex sensitivity (BRS, ms/mm Hg) were calculated using the sequence method.

RESULTS

Baseline BEI (22 ± 2 versus 23 ± 2 percent, t = - 0.411, p = 0.682) and BRS (14.1 ± 2.4 versus 13.8 ± 2.5 ms/mm of Hg, t = - 0.084, p = 0.933) were similar in PPH and noPPH subjects. During the meal test PPH subjects showed significantly lower BEI as compared to noPPH subjects (time × PPH, F = 2.791, p = 0.042), while there was no difference in the postprandial change in BRS (time, F = 0.618, p = 0.605).

CONCLUSION

Patients with PPH demonstrated an acute postprandial decrease in baroreflex effectiveness during meal testing as compared with normal subjects, suggesting a potential contributing mechanism for this condition.

Brain and Body: A Review of Central Nervous System Contributions to Movement Impairments in Diabetes

Diabetes is associated with a loss of somatosensory and motor function, leading to impairments in gait, balance, and manual dexterity. Data-driven neuroimaging studies frequently report a negative impact of diabetes on sensorimotor regions in the brain; however, relationships with sensorimotor behavior are rarely considered. The goal of this review is to consider existing diabetes neuroimaging evidence through the lens of sensorimotor neuroscience. We review evidence for diabetes-related disruptions to three critical circuits for movement control: the cerebral cortex, the cerebellum, and the basal ganglia. In addition, we discuss how central nervous system (CNS) degeneration might interact with the loss of sensory feedback from the limbs due to peripheral neuropathy to result in motor impairments in individuals with diabetes. We argue that our understanding of movement impairments in individuals with diabetes is incomplete without the consideration of disease complications in both the central and peripheral nervous systems. Neuroimaging evidence for disrupted central sensorimotor circuitry suggests that there may be unrecognized behavioral impairments in individuals with diabetes. Applying knowledge from the existing literature on CNS contributions to motor control and motor learning in healthy individuals provides a framework for hypothesis generation for future research on this topic.

LINKS BETWEEN PARTNER INTERACTIONS, EMPATHY, AND EVERYDAY PHYSIOLOGICAL SYNCHRONY IN OLDER COUPLES

Romantic partners exhibit dyadic covariation (synchrony) in physiological parameters. This study aims to link everyday cortisol synchrony to daily partner interactions and empathy. We conducted coordinated multilevel analysis using data from two independently collected samples of older couples (Study 1: N = 85 couples, aged 60-87 years; Study 2: N = 77 couples, aged 66-85 years) who completed questionnaires and provided salivary cortisol samples 5 to 7 times daily for 7 days. Cortisol levels were significantly correlated among partners in both studies. Cortisol synchrony was higher when partners were present (Study 1), and when partner interactions involved feeling understood and valued (Study 1) and seeking help or closeness (Study 2). Higher cortisol synchrony was further related to greater empathic accuracy (Study 1) and greater empathy (Study 2). Thus, social bonding processes and the ability to consider other’s thoughts and feelings may be intertwined with physiological synchrony in everyday life.

JOINT GOALS IN OLDER COUPLES: ASSOCIATIONS WITH GOAL PROGRESS AND RELATIONSHIP SATISFACTION

Goals often involve close others such as spouses, but we know little about how this helps or hinders goal progress and what couple consequences arise. To examine these questions, we investigate associations between joint goals, goal progress, and relationship satisfaction by applying multi-level modeling to data from 119 couples (50% female; Mage=71 years). Participants listed their most important goals and reported if they wanted to achieve these together with their partner (self-rated joint goals). 85% self-reported at least one joint goal. Two raters classified goals as “joint” if both partners mentioned the same goal. Positive illusions–i.e., older adults thinking a goal was joint although it was not reported by the spouse–were frequent. Number of joint goals was related to increased goal progress but only for those with low positive illusions, whereas positive illusions were linked to higher relationship satisfaction. We discuss theoretical and practical implications of our findings.

Linked Lives: Exploring Gender and Sedentary Behaviors in Older Adult Couples

Objectives: We explored associations between co-habiting partners for sedentary behavior (type and time, via accelerometry and self-report), gender, and a surrogate health measure (inflammatory biomarker: C-reactive protein, CRP). Methods: Participants completed activity questionnaires and the Timed Up and Go (mobility), wore an accelerometer for 7 days, and provided samples for high-sensitivity (hs) CRP. We used multilevel modeling (partners within couples) to investigate associations between independent variables and (a) sedentary behavior and (b) hsCRP. Results: 112 couples (50% women) provided sedentary data and hsCRP. Sedentary behavior was significantly correlated (r = .440, p < .001) between women and men, but there were significant differences in sedentary time (women < men) and light activity (women > men). Gender, moderate to vigorous physical activity (MVPA), and mobility estimated 37% of the modeled variance in sedentary time, while body mass index (BMI) and MVPA estimated 10% of the modeled variance in hsCRP. Discussion: Despite differences in how activity was accumulated, there were no significant differences between women's and men's health biomarker.

Blood pressure measurement and the prevalence of postprandial hypotension

Background: Postprandial hypotension (PPH) is a serious condition that has been shown to be an independent risk factor for falls, fractures and death. Purpose: The prevalence of this problem in older adults with a past history of falls has shown a wide variability in the literature; the present study seeks to examine how the frequency with which blood pressure is measured impacts the prevalence and severity of PPH. Methods: Older adults were recruited sequentially from a geriatric medicine falls clinic for meal testing (n=95). All subjects (mean age 77.5±0.7 years, 61±5% female) were fasting prior to each 90 min standardized meal test. A Finometer (Finapres Medical Systems BV) was used to monitor blood pressure. Beat-by-beat systolic (SBP) measures were averaged for 0.5, 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45 and 90 min respectively during the meal test. Results: Using the original diagnostic method of checking mean blood pressure every 10 min resulted in a PPH prevalence of 42.1±5.1% in our population, with an overall range from 81.1±4.0% to 11.6±3.3% depending on the frequency of calculating SBP. The maximal observed postprandial decrease in SBP also showed a significant difference with blood pressure measurement frequency (p

DNA methylation signatures in peripheral blood mononuclear cells from a lifestyle intervention for women at midlife: a pilot randomized controlled trial

Physical activity confers many health benefits, but the underlying mechanisms require further exploration. In this pilot randomized controlled trial we tested the association between longitudinal measures of DNA methylation and changes in objective measures, including physical activity, weight loss, and C-reactive protein levels in community-dwelling women aged 55 to 70 years. We assessed DNA methylation from 20 healthy postmenopausal women, who did not have a mobility disability and allocated them to a group-based intervention, Everyday Activity Supports You, or a control group (monthly group-based health-related education sessions). The original randomized controlled trial was 6 months in duration and consisted of nine 2-h sessions that focused on reducing sedentary behaviour for the intervention group, or six 1-h sessions that focused on other topics for the control group. We collected peripheral blood mononuclear cells, both at baseline and 6 months later. Samples were processed using the Illumina 450k Methylation array to quantify DNA methylation at >485 000 CpG sites in the genome. There were no significant associations between DNA methylation and physical activity, but we did observe alterations at epigenetic modifications that correlated with change in percent body weight over a 6-month period at 12 genomic loci, 2 of which were located near the previously reported weight-associated genes RUNX3 and NAMPT. We also generated a potential epigenetic predictor of weight loss using baseline DNA methylation at 5 CpG sites. These exploratory findings suggest a potential biological link between body weight changes and epigenetic processes.

Community Care for Older Adults-the Patient/Caregiver Perspective

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Defining Functional Decline, Characteristics of Admitted Older Adults and Comparing Alternate Versions of the MoCA

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Activity Profile and Energy Expenditure Among Active Older Adults, British Columbia, 2011-2012

Introduction

Time spent by young adults in moderate to vigorous activity predicts daily caloric expenditure. In contrast, caloric expenditure among older adults is best predicted by time spent in light activity. We examined highly active older adults to examine the biggest contributors to energy expenditure in this population.

Methods

Fifty-four community-dwelling men and women aged 65 years or older (mean, 71.4 y) were enrolled in this cross-sectional observational study. All were members of the Whistler Senior Ski Team, and all met current American guidelines for physical activity. Activity levels (sedentary, light, and moderate to vigorous) were recorded by accelerometers worn continuously for 7 days. Caloric expenditure was measured using accelerometry, galvanic skin response, skin temperature, and heat flux. Significant variables were entered into a stepwise multivariate linear model consisting of activity level, age, and sex.

Results

The average (standard deviation [SD]) daily nonlying sedentary time was 564 (92) minutes (9.4 [1.5] h) per day. The main predictors of higher caloric expenditure were time spent in moderate to vigorous activity (standardized β = 0.42 [SE, 0.08]; P < .001) and male sex (standardized β = 1.34 [SE, 0.16]; P < .001). A model consisting of only moderate to vigorous physical activity and sex explained 68% of the variation in caloric expenditure. An increase in moderate to vigorous physical activity by 1 minute per day was associated with an additional 16 kcal expended in physical activity.

Conclusion

The relationship between activity intensity and caloric expenditure in athletic seniors is similar to that observed in young adults. Active older adults still spend a substantial proportion of the day engaged in sedentary behaviors.

"Not just another walking program": Everyday Activity Supports You (EASY) model-a randomized pilot study for a parallel randomized controlled trial

BACKGROUND

Maintaining physical activity is an important goal with positive health benefits, yet many people spend most of their day sitting. Our Everyday Activity Supports You (EASY) model aims to encourage movement through daily activities and utilitarian walking. The primary objective of this phase was to test study feasibility (recruitment and retention rates) for the EASY model.

METHODS

This 6-month study took place in Vancouver, Canada, from May to December 2013, with data analyses in February 2014. Participants were healthy, inactive, community-dwelling women aged 55-70 years. We recruited through advertisements in local community newspapers and randomized participants using a remote web service. The model included the following: group-based education and social support, individualized physical activity prescription (called Activity 4-1-1), and use of a Fitbit activity monitor. The control group received health-related information only. The main outcome measures were descriptions of study feasibility (recruitment and retention rates). We also collected information on activity patterns (ActiGraph GT3X+ accelerometers) and health-related outcomes such as body composition (height and weight using standard techniques), blood pressure (automatic blood pressure monitor), and psychosocial variables (questionnaires).

RESULTS

We advertised in local community newspapers to recruit participants. Over 3 weeks, 82 participants telephoned; following screening, 68% (56/82) met the inclusion criteria and 45% (25/56) were randomized by remote web-based allocation. This included 13 participants in the intervention group and 12 participants in the control group (education). At 6 months, 12/13 (92%) intervention and 8/12 (67%) control participants completed the final assessment. Controlling for baseline values, the intervention group had an average of 2,080 [95% confidence intervals (CIs) 704, 4,918] more steps/day at 6 months compared with the control group. There was an average between group difference in weight loss of -4.3 [95% CI -6.22, -2.40] kg and reduction in diastolic blood pressure of -8.54 [95% CI -16.89, -0.198] mmHg, in favor of EASY.

CONCLUSIONS

The EASY pilot study was feasible to deliver; there was an increase in physical activity and reduction in weight and blood pressure for intervention participants at 6 months.

TRIAL REGISTRATION

ClinicalTrials.gov identifier: NCT01842061.

Exercise-induced changes in cardiovascular function after stroke: a randomized controlled trial

BACKGROUND AND AIMS

Cardiovascular co-morbidities are prevalent after stroke, with heart disease, hypertension and impaired glucose tolerance present in the majority of cases. Exercise has the potential to mediate cardiovascular risk factors commonly present in people with stroke. This single-blinded randomized controlled trial compared the effects of high versus low intensity exercise on fitness, cardiovascular risk factors, and cardiac function after stroke.

METHODS

Fifty participants (age 50-80 y, >1 y post-stroke) were randomized to a high-intensity Aerobic Exercise (AE) or low-intensity non-aerobic Balance/Flexibility (BF) program (6 months, 3 60-min sessions/week). Outcomes assessed by VO2 peak (primary outcome), arterial stiffness, ambulatory capacity, hemodynamics and cardiac function using echocardiography, and lipid, glucose and homocysteine levels. Assessors were blinded to group allocation.

RESULTS

Twenty-three (92%) of 25 AE group participants (withdrawals unrelated to the intervention) and all BF group participants completed the program. One BF group participant experienced 2 non-injurious falls during class. No other adverse events occurred. There were no changes in VO2 peak in either group (AE 16·9±7 to 17·4±7 ml●kg(-1) ●min(-1) vs. BF 16·9±6 to 16·6±5 ml●kg(-1) ●min(-1) , P=0·45), but AE group demonstrated greater improvement in right atrial emptying fraction (AE 30±22 to 37±22% vs. BF 35±20 to 31±20%, P=0·04). Both groups demonstrated improvements in lipid profiles, glucose and homocysteine levels, and ambulatory capacity (P<0·04).

CONCLUSIONS

This was the first study to examine the effects of aerobic exercise after stroke on cardiovascular hemodynamics. High-intensity exercise improved right-sided function and early myocardial relaxation. Low-intensity exercise may also benefit plasma lipid, glucose and inflammatory markers, and ambulatory capacity. This study is an important step towards understanding mechanisms by which exercise may reduce cardiovascular risk and function.

Sedentary behavior and sleep efficiency in active community-dwelling older adults

OBJECTIVES

Previous studies have demonstrated that aerobic exercise interventions have a positive impact on sleep efficiency in older adults. However, little work has been done on the impact of sedentary behavior (sitting, watching television, etc.) on sleep efficiency.

METHODS

54 Community-dwelling men and women >65 years of age living in Whistler, British Columbia (mean 71.5 years) were enrolled in this cross-sectional observational study. Measures of sleep efficiency as well as average waking sedentary (ST), light (LT), and moderate (MT) activity were recorded with Sensewear accelerometers worn continuously for 7 days.

RESULTS

From the univariate regression analysis, there was no association between sleep efficiency and the predictors LT and MT. There was a small negative association between ST and sleep efficiency that remained significant in our multivariate regression model containing alcohol consumption, age and gender as covariates. (standardized β correlation coefficient -0.322, p=0.019). Although significant, this effect was small (an increase in sedentary time of 3 hours per day was associated with an approximately 5% reduction in sleep efficiency).

CONCLUSIONS

This study found a small significant association between the time spent sedentary and sleep efficiency, despite high levels of activity in this older adult group.

Special issue on fitness to drive

BackgroundIn Canada, the rise of private-pay assisted living facilities is changing the long-term care landscape. Even so, few clinical implications of having these facilities in the spectrum of care have been studied. Our objective was to compare events and symptoms that might predispose and precipitate a move of older adults to assisted living or to a nursing home.MethodsCross-sectional, descriptive Nova Scotia survey of residents and family members on admission. Health-care use and dementia diagnosis were recorded from the admission record. Dementia was staged using the Global Deterioration Scale and the Dependence Scale. The SymptomGuide, a standardized dementia symptom inventory, was used to assay which symptoms were most influential in the decision to seek long term care. Caregiver stress was elicited by a self-report questionnaire.ResultsOf 353 people admitted during the enrolment period, 174 (49%) took part in the survey. Most (97; 55.7%) were involved in a move from the community to a nursing home, 54 (31.0%) from the community to assisted living, and 23 (13.2%) from assisted living to a nursing home. In each setting, dementia was the commonest predisposing factor (seen in >90%) with a precipitating event seen in 120 (69%) people. The precipitating events included a medical illness (n = 97; 55%) or caregiver illness, death or move (33; 19%). Dependence was associated with place of care, with more severely impaired people more commonly represented in people who moved to nursing homes.ConclusionsPeople move from the community chiefly due to dementia, and often with a precipitant. Compared with a move to assisted living, moving to nursing homes generally indicates greater dependence, and typically worse dementia severity. Even so, assisted-living facilities are not just for the “worried well”, but are used by people with dementia, caregiver stress, and recent hospitalization.

Accelerometer-based measures of sedentary behavior and cardio-metabolic risk in active older adults

PURPOSE

Sedentary behavior has been proposed as an independent cardio-metabolic risk factor even in adults who are physically active through recreational activity. Because little is known about the metabolic effects of sedentariness in seniors, the relationship between sedentary behavior and cardio-metabolic risk was examined in physically active older adults.

METHODS

Fifty-four community dwelling men and women > 65 years of age (mean 71.5 years) were enrolled in this cross-sectional observational study. Subjects were in good health and free of known diabetes. Activity levels (sedentary, light, moderate to vigorous activity time per day) were recorded with accelerometers worn continuously for 7 days. Cardio-metabolic risk factors measured consisted of the American Heart Association diagnostic criteria for metabolic syndrome (waist circumference, triglycerides, high-density lipoprotein, systolic blood pressure and fasting glucose) as well as low-density lipoprotein (LDL). The relationships between activity measures and cardio-metabolic risk factors were examined. Significant variables were then entered into a stepwise multivariate regression model.

RESULTS

All but one subject achieved exercise levels recommended by the American College of Sports Medicine. The average proportion of time spent at a sedentary activity level each day was 72.7%. From the regression analysis, the only significant association found between cardio-metabolic risk outcomes and activity predictors was between LDL and sedentary time, with LDL detrimentally associated with average sedentary time per day (Standardized Beta Correlation Coefficient 0.302, p < 0.05).

CONCLUSION

Sedentary behavior is associated with an adverse metabolic effect on LDL in seniors, even those who meet guideline recommendations for an active "fit" adult.

Aerobic training in older adults with type 2 diabetes and vasodepressive carotid sinus hypersensitivity

BACKGROUND AND AIMS

Vasodepressive carotid sinus hypersensitivity (V-CSH) is a common but incurable etiology for fainting in older adults with diabetes (OADM), and is diagnosed by carotid sinus massage (CSM). Aerobic exercise has been shown to be an effective therapy for other neuroautonomic etiologies of syncope (such as orthostatic hypotension), but the effectiveness of aerobic training in V-CSH remains unknown. We examined whether aerobic training could attenuate the vasodepressive response to CSM in OADM (older adults with type 2 diabetes) subjects complicated by V-CSH.

METHODS

Forty OADM subjects (mean age 72.2 ± 0.7) complicated by V-CSH were recruited. Subjects were randomized to each of two groups: an aerobic group (AT, n = 20, 3 months vigorous aerobic exercise), and a nonaerobic (NA, n = 20, no aerobic exercise) group. Exercise sessions were supervised by a certified exercise trainer three times per week. The vasodepressive response [defined as the decrease in systolic blood pressure (SBP) during CSM] was measured before and after the training intervention using a Finometer.

RESULTS

The intervention had no impact on the number of subjects that met the criteria for V-CSM in either the AT or NA groups, regardless of the criteria used (-10, -20, -30, -40 and -50 mmHg). There was no training effect on the vasodepressive response in either the AT or NA group (P = 0.214, 2-way analysis of variance, -30 mmHg definition for V-CSH).

CONCLUSIONS

Aerobic training has no effect on the SBP response to CSM in OADM subjects with V-CSH. Unlike in other neuroautonomic etiologies for fainting, aerobic exercise is not effective as a treatment for V-CSH, at least in the OADM population.

Evidence for the benefit of exercise therapy in patients with type 2 diabetes

Exercise interventions are recommended in most guidelines for the treatment of type 2 diabetes. Although most guidelines suggest a combination of both aerobic and resistance training, the exact benefits of these interventions remain unclear. Although either modality alone or in combination seems to have an identical impact on glycated hemoglobin levels, resistance training and aerobic training have independent effects on other parameters of cardio-metabolic risk. This review examines the current evidence for aerobic and resistance training on glycemic control, lipid profile, body composition, vascular health, and mental health in patients with type 2 diabetes. The uncertainties surrounding exercise modality, volume and intensity are also addressed.