[What importance does outpatient care have for mobility in rural areas? Results from a GPS study among persons aged 75 and older]. / Außerhäusliche Mobilität von Personen ab 75 Jahren im ländlichen Raum. Ergebnisse aus einer GPS-Studie.

BACKGROUND: Out-of-home mobility, defined as active and passive movement through external environments, is a resource for autonomy, quality of life, and self-realization in older age. Various factors influence out-of-home mobility, primarily studied in urban settings. The study aims to examine associated factors in a study population aged 75 and above in rural areas. METHODS: Baseline data from the MOBILE trial involving 212 participants aged 75 and above and collected between June 2021 and October 2022 were analyzed. Out-of-home mobility was measured temporally as time out of home (TOH) and spatially as convex hull (CHull) using GPS over seven days. Mixed models considered outpatient care parameters as well as personal, social, and environmental factors along with covariates such as age and gender. RESULTS: Participants in the MOBILE study (average age 81.5; SD: 4.1; 56.1% female) exhibited average out-of-home mobility of TOH: 319.3 min (SD: 196.3) and CHull: 41.3 (SD: 132.8). Significant associations were found for age (TOH: ß = -0.039, p < 0.001), social network (TOH: ß = 0.123, p < 0.001), living arrangement (CHull: ß = 0.689, p = 0.035), health literacy (CHull: ß = 0.077, p = 0.008), sidewalk quality (ß = 0.366, p = 0.003), green space ratio (TOH: ß = 0.005, p = 0.047), outpatient care utilization (TOH: ß = -0.637, p < 0.001, CHull: ß = 1.532; p = 0.025), and active driving (TOH: ß = -0.361, p = 0.004). DISCUSSION: Previously known multifactorial associations related to objectively measured out-of-home mobility in old age could be confirmed in rural areas. Novel and relevant for research and practice is the significant correlation between out-of-home mobility and outpatient care utilization.

Life-space mobility among home-living older adults with care needs and clinical depression-A cross-sectional analysis.

OBJECTIVES: While life-space mobility is key for wellbeing, social participation and access to health care, vulnerable older adults face physical and mental barriers that may restrict mobility. The present exploratory study examined associations between physical functional limitations, depressive symptoms, life-space mobility and outpatient health care utilization. METHODS: Cross-sectional data from 197 community-dwelling older adults with care needs and clinical depression was collected. Life-space assessment composite score (LS-C), instrumental activities of daily living scale (iADL), Geriatric Depression Scale (GDS-12) and outpatient health care utilization have been assessed. Multiple regression analyses were conducted. RESULTS: Mean LS-C score was 31.8 (SD = 17.7, range: 0-92), indicating low mobility levels. Depressive symptoms (ß = -0.21, p = 0.001) and iADL (ß = 0.54, p < 0.001) were significantly related with life-space mobility, over and above age and living alone. An interaction effect between depressive symptoms and iADL was not significant (ß = -0.07, 0.17, p = 0.26). Moreover, life-space mobility was positively associated with primary care (ß = 0.19, p = 0.02) and mental health care utilization (ß = 0.33, p < 0.001). CONCLUSIONS: Life-space mobility appears to be largely restricted in home-living vulnerable older adults with clinically significant depression; and factors associated with these restrictions appear to be physical and mental. The interplay of depression, mobility and health care utilization and its potential for interventional approaches need further investigations. Present findings underline an urgent need for new health care services that allow mobility-impaired older patients to receive mental health outpatient treatment in their own home. CLINICAL TRIAL REGISTRATION: The trial was prospectively registered with the ISRCTN registry (Trial registration number: ISRCTN55646265, registered February 15, 2019).

Mobility enhancement among older adults 75 + in rural areas: Study protocol of the MOBILE randomized controlled trial.

BACKGROUND: Maintaining mobility in old age is crucial for healthy ageing including delaying the onset and progress of frailty. However, the extent of an individuals´ mobility relies largely on their personal, social, and environmental resources as outlined in the Life-Space Constriction Model. Recent studies mainly focus on facilitating habitual out-of-home mobility by fostering one type of resources only. The MOBILE trial aims at testing whether tablet-assisted motivational counselling enhances the mobility of community-dwelling older adults by addressing personal, social, and environmental resources. METHODS: In the MOBILE randomized controlled trial, we plan to enrol 254 community-dwelling older adults aged 75 and older from Havelland, a rural area in Germany. The intervention group will receive a tablet-assisted motivational counselling at the participant´s home and two follow-up telephone sessions. Main focus of the counselling sessions lays on setting and adapting individual mobility goals and applying action planning and habit formation strategies by incorporating the personal social network and regional opportunities for engaging in mobility related activities. The control group will receive postal general health information. The primary mobility outcome is time out-of-home assessed by GPS (GPS.Rec2.0-App) at three points in time (baseline, after one month, and after three months for seven consecutive days each). Secondary outcomes are the size of the GPS-derived life-space convex hull, self-reported life-space mobility (LSA-D), physical activity (IPAQ), depressive symptoms (GDS), frailty phenotype, and health status (SF-12). DISCUSSION: The MOBILE trial will test the effect of a motivational counselling intervention on out-of-home mobility in community-dwelling older adults. Novel aspects of the MOBILE trial include the preventive multi-level intervention approach in combination with easy-to-use technology. The ecological approach ensures low-threshold implementation, which increases the benefit for the people in the region. TRIAL REGISTRATION: The MOBILE trial is prospectively registered at DRKS (Deutsches Register Klinischer Studien, German Registry of Clinical Trials) DRKS00025230 . Registered 5 May 2021.

Fall Risk and Coping of Older Adults After Hospitalization: A Mixed Methods Study.

Coping is defined as cognitive and behavioral effort to manage specific external and/or internal demands, such as managing one's own fall risk. Little is known about the relationship between the risk of falling in older adults and their coping strategies. The purpose of this study is to examine the fall risk after hospitalization, the adequacy of self-perceived fall risk and coping strategies of older adults. In this mixed-methods study, the adequacy of perceived fall risk was determined using the de Morton Mobility Index and the ABC Scale in 98 geriatric patients recruited in a geriatric hospital. Semi-structured interviews were conducted with a subsample of 16 participants 6 months after discharge to identify coping strategies. The six interviewees who adequately assessed their fall risk reported active/positive coping. In contrast, participants who assessed their fall risk inadequately (10 out of 16) reported passive/negative coping. Older adults who inadequately assessed their fall risk need special accompaniment in geriatric wards to develop active/positive coping strategies.

Smartphone Global Positioning System-Based System to Assess Mobility in Health Research: Development, Accuracy, and Usability Study.

BACKGROUND: As global positioning system (GPS) measurement is getting more precise and affordable, health researchers can now objectively measure mobility using GPS sensors. Available systems, however, often lack data security and means of adaptation and often rely on a permanent internet connection. OBJECTIVE: To overcome these issues, we aimed to develop and test an easy-to-use, easy-to-adapt, and offline working app using smartphone sensors (GPS and accelerometry) for the quantification of mobility parameters. METHODS: An Android app, a server backend, and a specialized analysis pipeline have been developed (development substudy). Parameters of mobility by the study team members were extracted from the recorded GPS data using existing and newly developed algorithms. Test measurements were performed with participants to complete accuracy and reliability tests (accuracy substudy). Usability was examined by interviewing community-dwelling older adults after 1 week of device use, followed by an iterative app design process (usability substudy). RESULTS: The study protocol and the software toolchain worked reliably and accurately, even under suboptimal conditions, such as narrow streets and rural areas. The developed algorithms had high accuracy (97.4% correctness, F1-score=0.975) in distinguishing dwelling periods from moving intervals. The accuracy of the stop/trip classification is fundamental to second-order analyses such as the time out of home, as they rely on a precise discrimination between the 2 classes. The usability of the app and the study protocol was piloted with older adults, which showed low barriers and easy implementation into daily routines. CONCLUSIONS: Based on accuracy analyses and users' experience with the proposed system for GPS assessments, the developed algorithm showed great potential for app-based estimation of mobility in diverse health research contexts, including mobility patterns of community-dwelling older adults living in rural areas. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.1186/s12877-021-02739-0.

Validation of the German Life-Space Assessment (LSA-D): cross-sectional validation study in urban and rural community-dwelling older adults.

OBJECTIVES: To develop a German version of the original University of Alabama at Birmingham Study of Aging Life-Space Assessment (LSA-D) for measurement of community mobility in older adults within the past 4 weeks and to evaluate its construct validity for urban and rural populations of older adults. DESIGN: Cross-sectional validation study. SETTING: Two study centres in urban and rural German outpatient hospital settings. PARTICIPANTS: In total, N=83 community-dwelling older adults were recruited (n=40 from urban and n=43 from rural areas; mean age was 78.5 years (SD=5.4); 49.4% men). PRIMARY AND SECONDARY OUTCOME MEASURES: The final version of the translated LSA-D was related to limitations in activities and instrumental activities of daily living (ADL/iADL) as primary outcome measure (primary hypothesis); and with sociodemographic factors, functional mobility, self-rated health, balance confidence and history of falls as secondary outcome measures to obtain construct validity. Further descriptive measurements of health included hand grip strength, screening of cognitive function, comorbidities and use of transportation. To assess construct validity, correlations between LSA-D and the primary and secondary outcome measures were examined for the total sample, and urban and rural subsamples using bivariate regression and multiple adjusted regression models. Descriptive analyses of LSA-D included different scoring methods for each region. All parameters were estimated using non-parametric bootstrapping procedure. RESULTS: In the multiple adjusted model for the total sample, number of ADL/iADL limitations (ß=-0.26; 95% CI=-0.42 to -0.08), Timed Up and Go Test (ß=-0.37; 95% CI=-0.68 to -0.14), shared living arrangements (ß=0.22; 95% CI=0.01 to 0.44) and history of falls in the past 6 months (ß=-0.22; 95% CI=-0.41 to -0.05) showed significant associations with the LSA-D composite score, while living in urban area (ß=-0.19; 95% CI=-0.42 to 0.03) and male gender (ß=0.15; 95% CI=-0.04 to 0.35) were not significant. CONCLUSION: The LSA-D is a valid tool for measuring life-space mobility in German community-dwelling older adults within the past 4 weeks in ambulant urban and rural settings. TRIAL REGISTRATION NUMBER: DRKS00019023.