Determinants of instrumented sedentary and physical activity behavior in geriatric rehabilitation inpatients: RESORT

Inactivity is isolation: insights from a sedentary time intervention in assisted living

BACKGROUND

As Canada's aging population continues to grow, a larger number of older adults will be residing in assisted living (residences with some on-site care and services). Research is needed to understand how to support active aging - defined as a combination of movement and social behaviours-in this unique living environment. In this study, we explored insights generated about active aging from older residents of assisted living who participated in an intervention designed to encourage standing breaks.

METHODS

This was a multi-method exploratory study. Residents of three assisted living facilities participated in a 12-week intervention called Stand When You Can. The Keele Assessment of Participation (KAP) was used to assess perceived levels of participation in various domains of assisted living at pre- and post-intervention. Focus group sessions were conducted to explore insights on active aging. Transcripts were thematically analyzed to generate themes and sub-themes.

RESULTS

A total of 18 residents (84.4 ± 6.8 years, 72% female), participated in the focus groups. KAP scores at pre-intervention were indicative of a high level of social participation within the residences. Five primary themes emerged from the focus group sessions: 1) intervention effectiveness, 2) physical and social engagement go hand in hand, 3) the congregate living environment can influence movement behaviour, 4) congregate living supports interpersonal relationships, and 5) personal preferences for solitary activity.

CONCLUSIONS

The natural communal setting of assisted living, along with supportive staff, presents a valuable opportunity to promote active aging, which is a complex interplay of social and movement behaviour. Our preliminary findings suggest that in addition to supporting individual behaviour change, a comprehensive approach that addresses the environment, social engagement, and staff engagement is needed in this setting. Future interventions should consider addressing each of these components to facilitate successful behaviour change related to active aging.

Association of GLIM-defined malnutrition with depressive mood in older adults undergoing rehabilitation

BACKGROUND/OBJECTIVES

Depressive mood is prevalent in geriatric patients who undergo rehabilitation. Malnutrition, which frequently coexists in this demographic group, likely affects mental health status significantly. This study examined the association between malnutrition and depressive mood at discharge in geriatric patients who were undergoing rehabilitation and identified the mediating roles of specific malnutrition components in this association.

SUBJECTS/METHODS

This prospective cohort study comprised 189 geriatric rehabilitation patients. Malnutrition was determined using the Global Leadership Initiative on Malnutrition (GLIM) criteria, and depressive mood was assessed using the Geriatric Depression Scale-15 (GDS-15). The potential mediation of the GLIM components in the relationship between malnutrition and depressive mood was evaluated using causal mediation analysis.

RESULTS

Malnutrition was positively associated with increased GDS-15 scores at both admission (p = 0.007) and discharge (p < 0.001). The severity of malnutrition corresponded with increased odds of depressive mood at discharge (moderate malnutrition: odds ratio [OR] 3.84, 95% confidence interval [CI] 1.48-9.94, p = 0.005; severe malnutrition: OR 5.11, 95% CI 1.52-15.17, p = 0.003). Notably, both muscle mass reduction (OR 1.51, 95% CI 1.01-2.27, p = 0.042) and disease burden (OR 1.37, 95% CI 1.00-1.89, p = 0.047) were identified as mediators in the association between malnutrition and depressive mood at discharge.

CONCLUSIONS

Nutritional status significantly influenced the mental health of geriatric rehabilitation patients, with muscle mass reduction and disease burden mediating this relationship. These findings emphasize the importance of a multidimensional geriatric rehabilitation approach that includes nutritional interventions.

Monitoring postures and motions of hospitalized patients using sensor technology: a scoping review

BACKGROUND

Sensor technology could provide solutions to monitor postures and motions and to help hospital patients reach their rehabilitation goals with minimal supervision. Synthesized information on device applications and methodology is lacking.

OBJECTIVES

The purpose of this scoping review was to provide an overview of device applications and methodological approaches to monitor postures and motions in hospitalized patients using sensor technology.

METHODS

A systematic search of Embase, Medline, Web of Science and Google Scholar was completed in February 2023 and updated in March 2024. Included studies described populations of hospitalized adults with short admission periods and interventions that use sensor technology to objectively monitor postures and motions. Study selection was performed by two authors independently of each other. Data extraction and narrative analysis focused on the applications and methodological approaches of included articles using a personalized standard form to extract information on device, measurement and analysis characteristics of included studies and analyse frequencies and usage.

RESULTS

A total of 15.032 articles were found and 49 articles met the inclusion criteria. Devices were most often applied in older adults (n = 14), patients awaiting or after surgery (n = 14), and stroke (n = 6). The main goals were gaining insight into patient physical behavioural patterns (n = 19) and investigating physical behaviour in relation to other parameters such as muscle strength or hospital length of stay (n = 18). The studies had heterogeneous study designs and lacked completeness in reporting on device settings, data analysis, and algorithms. Information on device settings, data analysis, and algorithms was poorly reported.

CONCLUSIONS

Studies on monitoring postures and motions are heterogeneous in their population, applications and methodological approaches. More uniformity and transparency in methodology and study reporting would improve reproducibility, interpretation and generalization of results. Clear guidelines for reporting and the collection and sharing of raw data would benefit the field by enabling study comparison and reproduction.

The association between blood biological age at rehabilitation admission and physical activity during rehabilitation in geriatric inpatients: RESORT

Geriatric rehabilitation inpatients have high levels of sedentary behaviour (SB) and low levels of physical activity (PA). Biological age predicted by blood biomarkers is indicative of adverse outcomes. The objective was to determine the association between blood biological age at rehabilitation admission and levels of SB and PA during rehabilitation in geriatric inpatients. Inpatients admitted to geriatric rehabilitation wards at the Royal Melbourne Hospital (Melbourne, Australia) from October 22, 2019, to March 29, 2020, in the REStORing health of acute unwell adulTs (RESORT) observational cohort were included. Blood biological age was predicted using SenoClock-BloodAge, a hematological ageing clock. Patients wore an inertial sensor to measure SB and PA. Logistic regression analyses were conducted. A total of 111 patients (57.7% female) with mean age 83.3 ± 7.5 years were included in the analysis. The mean blood biological age was 82.7 ± 8.4 years. Patients with 1-year higher blood biological age had higher odds of having high SB measured as non-upright time greater than 23 h/day (odds ratio (OR): 1.050, 95% confidence interval (CI): 1.000-1.102). Individuals having 1-year higher age deviation trended towards lower odds of having high levels of PA measured as stepping time greater than 7.4 min/day (OR: 0.916, CI: 0.836-1.005) and as greater than 19.5 sit-to-stand transitions/day (OR: 0.915, CI: 0.836-1.002). In conclusion, higher biological age was associated with higher levels of SB and trended towards lower PA. Incorporating blood biological age could facilitate resource allocation and the development of more tailored rehabilitation plans.

Measures for Identifying Malnutrition in Geriatric Rehabilitation: A Scoping Review

Malnutrition is a common condition in geriatric rehabilitation settings; however, the accuracy and predictive validity of the measures to identify malnutrition have not been established. The current scoping review followed the Joanna Briggs Institute's evidence synthesis manual and the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Extension for Scoping Reviews checklist. Literature published through September 2023 was searched using MEDLINE and CINAHL. The inclusion criteria selected studies reporting malnutrition measures, which include static body weight and weight loss. Identified tools were classified as nutritional screening tools, nutritional assessment tools, or diagnostic criteria. The domains of each tool/criterion and their accuracy and predictive validity were extracted. Fifty-six articles fulfilled the inclusion criteria, and six nutritional screening tools, three nutritional assessment tools, and three diagnostic criteria for malnutrition were identified. These measures consisted of various phenotypes, e.g., weight loss, causes such as inflammation/disease, and risk factors of malnutrition, e.g., functional impairment. The predictive validity of nutritional screening tools (n = 6) and malnutrition diagnostic criteria (n = 5) were inconsistently reported, whereas those for nutritional assessment tools were scarce (n = 1). These findings highlight the need to distinguish the functional impairment of nutritional origin from that of non-nutritional origin in nutritional assessment procedures, and the need to study the accuracy and the predictive validity of these measures in geriatric rehabilitation patients.

Is there a relationship between 'getting up and dressed' and functional and physical outcomes in geriatric rehabilitation inpatients? A quasi-experimental study

OBJECTIVES

To evaluate the physical and functional outcomes of the 'Ending Pyjama Paralysis' intervention in an inpatient geriatric rehabilitation unit.

DESIGN

Quasi-experimental mixed-methods design nested within the 'REStORing health of acutely unwell adulTs' (RESORT) prospective, observational, longitudinal cohort of geriatric rehabilitation inpatients study.

SETTING

Geriatric rehabilitation wards in a major metropolitan public hospital between June 2019 and March 2020.

INTERVENTION

The 'Ending Pyjama Paralysis' movement originated in the UK. Its aim was to encourage patients to 'Get up, Get dressed and Get moving' to reduce hospital-associated functional decline. However, the physical and functional benefits of this campaign have not yet been evaluated. The 'Ending Pyjama Paralysis' was adopted as an integrated intervention on two out of four geriatric rehabilitation wards. The two control wards received usual care.

MAIN MEASURES

Physical measures included the Short Physical Performance Battery, and functional measures included the Katz Index of Independence in Activities of Daily Living and Lawton and Brody's Instrumental Activities of Daily Living, which were completed on admission and discharge. A linear mixed-effects model was used to analyse the results.

RESULTS

A total of 833 admissions were included in this study. Of these, 512 patients were in the control group, and 321 were in the intervention group. There were no significant differences in both physical and functional measures between the intervention and control groups.

CONCLUSION

The 'Ending Pyjama Paralysis' campaign did not result in enhanced functional or physical benefits in geriatric rehabilitation inpatients in this setting when applied in addition to usual care.

Physical activity levels in cognitively normal and cognitively impaired oldest-old and the association with dementia risk factors: a pilot study

BACKGROUND

Research assessing the relationship of physical activity and dementia is usually based on studies with individuals younger than 90 years of age. The primary aim of this study was to determine physical activity levels of cognitively normal and cognitively impaired adults older than 90 years of age (oldest-old). Our secondary aim was to assess if physical activity is associated with risk factors for dementia and brain pathology biomarkers.

METHODS

Physical activity was assessed in cognitively normal (N = 49) and cognitively impaired (N = 12) oldest-old by trunk accelerometry for a 7-day period. We tested physical performance parameters and nutritional status as dementia risk factors, and brain pathology biomarkers. Linear regression models were used to examine the associations, correcting for age, sex and years of education.

RESULTS

Cognitively normal oldest-old were on average active for a total duration of 45 (SD 27) minutes per day, while cognitively impaired oldest-old seemed less physically active with 33 (SD 21) minutes per day with a lower movement intensity. Higher active duration and lower sedentary duration were related to better nutritional status and better physical performance. Higher movement intensities were related to better nutritional status, better physical performance and less white matter hyperintensities. Longer maximum walking bout duration associated with more amyloid binding.

CONCLUSION

We found that cognitively impaired oldest-old are active at a lower movement intensity than cognitively normal oldest-old individuals. In the oldest-old, physical activity is related to physical parameters, nutritional status, and moderately to brain pathology biomarkers.

Characteristics of geriatric rehabilitation inpatients based on their frailty severity and change in frailty severity during admission: RESORT

BACKGROUND

Frailty is prevalent amongst geriatric inpatients and worsens clinical outcomes. Determinants of admission frailty and changes in frailty severity are potential targets for intervention.

OBJECTIVE

To identify characteristics associated with frailty severity at admission and change in frailty severity during geriatric rehabilitation.

METHODS

The observational, prospective, longitudinal inception cohort REStORing health of acutely unwell adulTs (RESORT) includes geriatric rehabilitation inpatients. Demographic, medical, nutritional, functional, and psychological characteristics were analysed according to admission Clinical Frailty Scale. Linear and multinomial logistic regression prediction models identified admission characteristics predicting change in frailty severity during rehabilitation.

RESULTS

A total 1716 inpatients (median age [IQR] 83.4 [77.7-88.6] years, 56.4 % females) were included. Poorer admission medical, nutritional, functional, and psychological status was associated with more severe frailty. Cardiac admissions, higher Cumulative Illness Rating Scale, greater number of medications, and better Short Physical Performance Battery at admission predicted improved frailty severity. Admission cognitive impairment, delirium, higher Charlson Comorbidity Index, and Hospital Anxiety and Depression Scale anxiety predicted worsened frailty severity. Explained variation was low.

CONCLUSIONS

Frailer geriatric rehabilitation inpatients have more complicated disease and impaired nutritional, physical, and psychological markers. Admission cognitive impairment, delirium, comorbidity, and anxiety predict worsening frailty during rehabilitation, and require prompt management.