Forskningsartikler

Abstract

Background: Malnutrition and frailty frequently affect older adults receiving domiciliary care services, increasing their vulnerability to adverse events such as delirium. Despite this, the role of malnutrition as a risk factor for delirium in this population remains under-researched. The aim of this study was to examine the relationship between nutritional status and the development of delirium over a 2-year period among older adults who received domiciliary care services.

Method: In this 2-year prospective cohort study, we included 210 participants aged 65 years or older who received domiciliary care services at least once per week. Nutritional status was assessed using the Mini Nutritional Assessment at the time of inclusion, while delirium was assessed weekly, upon admission to hospital, and upon clinical indication according to DSM-5 criteria. Logistic regression analysis was used to examine the relationship between malnutrition and delirium.

Results: Of the sample, 116 (55.2%) were malnourished/at risk of malnutrition at the time of inclusion. Over a 2-year period, 42.4% developed delirium. The odds ratio for developing delirium was 2.00 (95% CI 1.08-3.72, P = 0.028), for the group with malnutrition/risk of malnutrition, adjusted for covariates.

Conclusion: Malnutrition is an independent risk factor for delirium in older adults receiving domiciliary care services. These findings highlight the importance of regular nutritional assessments and interventions to potentially reduce the risk of delirium in this vulnerable population.

Benedicte Huseby Bøhn, Maria Krogseth, Nina Jøranson, Torgeir Bruun Wyller, Geir Selbæk & Gro Gujord Tangen

Abstract: 

Background: Immersive technologies such as virtual reality (VR) that has been developed the recent years, are now increasingly accessible and offers new opportunities for VR environments combined with games that may enhance physical activity. However, these games may require adaptation and further customization for use among older users. In this pilot study, we investigate the experiences of older adults using a head-mounted VR exercise game that was developed in close collaboration with end users.

Methods: We included ten community-dwelling older adults aged 65 years and older who undertook six VR exercise sessions across a two-week period, each session lasting 15 min. Descriptive information included age, gender, mobility (Timed Up and Go test, TUG), and gait speed (10 m walk test), and daily steps from ankle-worn accelerometers. Semi-structured individual interviews were conducted, transcribed verbatim and analyzed by use of reflexive thematic analysis.

Results: We included four men and six women, age range from 66 to 77 years, with an average gait speed of 1.4 m/sec and an average TUG-time of 7.6 s. Their average activity levels were close to 4200 steps per day. After the trial period, participants’ experiences were that VR is a new and exciting development. They found VR to be more of a game than exercise, and they suggested integrating more challenging activities, physical movement and social engagement to enhance the exercise part of the game. They did not feel that the game facilitated any more physical activity in their daily lives.

Discussion/conclusion: VR is a promising tool that older adults in this trial enjoyed, but the game was not physically demanding enough for the participants. Future adaptations should include more challenges. Game development should focus on tasks that keep players interested and engaged over longer times, without jeopardizing safety.

Bård Bogen, Martin Moum Hellevik, Gro Gujord Tangen, Lars Peder Bovim, Nina Øye, Kristin Taraldsen

Abstarct:

Background: As life expectancy increases, the incidence of age-related chronic health conditions and functional decline rises, increasing the need for institutional long-term care such as nursing homes. In Norway, 84% of nursing home residents have mild cognitive impairment or dementia. This population is characterized by a high burden of neuropsychiatric symptoms (NPS), which contribute to limited physical activity (PA) and a largely sedentary lifestyle. Regular PA is essential for maintaining physical function (PF) and independence, yet nursing home residents spend most of their time being sedentary. The present study aims to explore sensor-based measured PA patterns and investigate how PA is associated with NPS and PF in nursing home residents.

Methods: This cross-sectional study used data from the fourth wave of the population-based Trøndelag Health Study 70-years-and-older cohort (HUNT4 70+), including activity data from a total of 163 nursing home residents. PA was measured using two accelerometers placed on the lower back and thigh. PA patterns were described through the activity types walking, standing, sitting, and lying, activity bouts, and transitions. NPS was assessed using the Nursing Home Version of the Neuropsychiatric Inventory (NPI-NH), and PF using the Short Physical Performance Battery (SPPB). All outcome variables were grouped based on cognitive impairment and dementia severity, set by clinical experts using the DSM-5 diagnostic criteria and the Clinical Dementia Rating (CDR) scale.

Results: Participants’ mean age was 87.8 years, and 62% were female. With a daily average of 17.6 min walking, 1.1 h standing, 9.9 h sitting, and 12.7 h lying, our nursing home residents spent approximately 94% of the day being sedentary. Walking and standing appeared predominantly in bouts under 10 min across cognitive impairment and dementia severity. No association was found between time spent walking, standing, sitting, lying and transitions from sedentary behavior to activity with NPS. Time spent walking, standing, lying and transitions from sedentary behavior to activity was significantly associated with PF.

Conclusions: PA mainly occurred in bouts shorter than 10 min and sitting and lying accounted for most of the daily behavior. No association was detected between time spent in different activities and NPS. Although time spent walking and standing was limited in all groups, it showed an association with PF. This may suggest that even small amounts of PA play a significant role in maintaining or improving physical capabilities in nursing home residents.

Stine Øverengen Trollebø, Karen Sverdrup, Atle Skjelbred, Kristin Taraldsen, Ellen Marie Bardal, Nina Skjæret-Maroni

Abstract

Bernt Bratsberg, Jennifer R Harris, Vegard Skirbekk, Yaakov Stern, Asta Kristine Håberg, Geir Selbæk, Bjørn Heine Strand, Trine Holt Edwin

Abstract:
Background/Objectives:
Old age and cognitive impairment/dementia are risk factors for falling and fall-related injuries. We have, in a previous study in persons with cognitive impairment, shown that falls were associated with frailty, reduced physical fitness, and cognitive reduction. Falls were independent of the disorders causing the impaired functions. Because most falls are innocent, knowledge of predictors of fall-related injuries seems more clinically relevant than the predictors of falls. Predictors of falls and fall-related injuries are not necessarily identical. The aim of this follow-up study to our previous one in the same population was to explore predictors of fall-related injuries in fallers and compare these predictors with those of falls.
Methods:
This study and our previous study used data from the “The Norwegian Registry of Persons Assessed for Cognitive Symptoms” (NorCog), a Norwegian research and quality registry with a biobank. The registry included consecutive home-dwelling persons referred to Norwegian specialist healthcare units for assessment of cognitive decline. This study included 3774 persons from our previous study who experienced falls last year and compared persons with and without a fall-related injury. A fall-related injury was defined as admittance to a hospital for the injury.
Results:
The annual incidence of fall-related injuries in the fallers was 884/3774 (23.4%). Female sex, older age, lower BMI, in need of public health service and walking assistance, and low Hb and Ca were independent predictors of fall-related injuries, indicating reduced physical fitness and state of health and a high burden of comorbidity. Injuries were not associated with the degree of cognitive impairment or the dementia diagnosis.

Conclusions:
In home dwelling persons with impaired cognitive functions and falls, fall-related injuries were associated with reduced physical fitness and state of health. In contrast to predictors of falls, neither the degree of cognitive impairment nor the dementia diagnosis was associated with fall-related injuries. The difference is comprehensible. Persons with cognitive impairment or dementia might have reduced power of judgment and be inattentive, unconcerned and careless, which increases the fall incidence but not the risk of injury once falling. Prevention of fall-related injuries should focus on relieving comorbidities, improving physical fitness and general health rather than on cognitive improvement.

Per G. Farup, Knut Hestad and Knut Engedal

Abstract:

Introduction: Understanding factors that influence care service use is crucial for developing preventive strategies to maintain independence among older adults. In this study, we aimed to identify distinct trajectory groups of municipal care service use among community-dwelling older adults to determine whether daily physical activity is associated with future care service use.

Methods: This prospective cohort study included 981 community-dwelling older adults from the HUNT4 Trondheim 70+ study. At baseline, physical activity was assessed over seven consecutive days using two accelerometers attached to the thigh and lower back. An activity type machine learning model was used to classify the physical activity types: walking, standing, cycling, running, sitting, and lying. Municipal care service use was retrieved monthly from medical records for 3 years. Using group-based trajectory modeling, we identified distinct trajectories of care service use. Multinomial regression models adjusted for age, sex, education level, dementia, and physical performance were used to evaluate the associations between daily physical activity at baseline and care service group belonging.

Results: We identified four distinct trajectory groups of municipal care service use, labeled steady low (72.7%), low increasing (9.0%), medium increasing (12.0%), and high increasing (6.3%). Daily time spent in total physical activity was not associated with trajectory group belonging when adjusted for age, sex, education level, dementia, and physical performance. However, more time spent walking, in bouts lasting longer than a minute, was associated with a reduced relative risk of belonging to the high increasing compared to the steady low group. Furthermore, age, physical performance, and dementia were all significantly associated with trajectory group belonging, and sex differences were observed. Compared to women, men had a reduced relative risk of belonging to the low increasing, medium increasing, or high increasing trajectory groups.

Conclusion: This study identified four distinct trajectories of municipal care service use among older adults over 3 years. Total daily physical activity was not associated with trajectories of care service use, but more time spent walking in longer bouts was independently associated with lower care service use, even when adjusted for the strong predictors of physical performance, dementia diagnosis, and age.

Astrid Ustad, Trine Holt Edwin, Kjerstin Næss Melsæter, Karen Sverdrup, Gro Gujord Tangen, Øystein Døhl, Pernille Thingstad, Beatrix Vereijken and Nina Skjæret-Maroni

Samandrag
Hensikt: Å undersøkje fysioterapeutar sine erfaringar med å rekruttere, lære opp og rettleie frivillige instruktørar som skal ha ansvar for å leie Sterk og stødig-treningsgrupper som ein del av kommunen sitt fallførebyggande tilbod til heimebuande eldre.

Metode: Fire individuelle djupneintervju med fysioterapeutar tilsett i ulike kommunar vart analysert med systematisk tekstkondensering.

Funn: Fem tema vart funne: (1) Ei naturleg rolle som skapar variasjon i arbeidskvardagen, (2) Rekruttering – ei ny rolle, (3) Frivillige som brubyggjarar for kunnskapsformidling, (4) Kontinuerleg rettleiing for å sikre riktig dosering og (5) Sterk og stødig for målgruppa?

Studien syner at opplærings- og rettleiingsrolla i Sterk og stødig vart opplevd som naturleg, og prega av tryggheit, kompetanse og ei positiv haldning til å arbeide førebyggande med målgruppa. Frivillige instruktørar fungerte som kunnskapsformidlarar om trening og fallførebygging til gruppedeltakarane. Å rekruttere eigna frivillige instruktørar var essensielt for både treningseffekt og drift av tilbodet, men var også ressurskrevjande for fysioterapeutane. Synet på å inkludere deltakarar utanfor målgruppa varierte.

Konklusjon: Fysioterapeutane opplever at arbeidsoppgåver knytt til Sterk og stødig integrerast naturleg inn i eiga rolle. Trass krevjande rekrutteringsarbeid, vert samarbeidet med frivillige gruppeinstruktørar ein viktig ressurs i det fallførebyggande arbeidet. Å finne gode løysingar knytte til rekrutteringsarbeid er sentralt.

Ane Brekke, Bård Erik Bogen, Ingebjørg Kyrdalen & Lill Anette Juvik

Background
Physical activity (PA) is imperative for healthy ageing and is a modifiable lifestyle factor. Accurate, clinically meaningful estimates of daily PA among older adults can inform targeted interventions to maintain function and independence. This study describes daily PA in older adults across levels of care as a first step contributing to the limited evidence on potential associations between PA and the use of care services.

Methods
This study used data from the Trondheim 70 + cohort in the population-based Norwegian HUNT Study. In total, 1042 participants aged 70 years or older with valid activity data were included. PA was assessed using two accelerometers over 7 consecutive days and was classified into PA (walking, standing, running, and cycling) and sedentary behavior (sitting and lying). Data on received care services were retrieved from municipal registers and participants were classified into four levels of care: 1) independently living (81.9%), 2) independently living with low-level home care services (6.5%), 3) recipients of home care services (6.0%), and 4) nursing home residents (5.7%). Time spent in the activity types and duration of bouts are presented across levels of care.

Results
Participants mean age was 77.5 years (range: 70.1–105.4, 55% female) and PA was lower with higher age. Across levels of care, significant group differences were found in the total time spent in PA, particularly in walking and standing. Daily PA, duration of active bouts, and number of daily walking bouts were lower for participants receiving higher levels of care. Standing was the dominant type of PA and walking appeared predominantly in short bouts at all care levels.

Conclusions
This is the first population-based study using device-measured PA to describe daily PA across levels of care. The results showed that low-intensity activities constitute the primary component of everyday PA, advocating for placing greater emphasis on the significant role these activities play in maintaining daily PA at older age. Furthermore, the study demonstrated that activity types and bout durations are related to the ability to live independently among older adults. Overall, these findings can contribute to better target interventions to maintain function and independence in older adults.

Astrid Ustad, Karen Sverdrup, Gro Gujord Tangen, Øystein Døhl, Beatrix Vereijken, Pernille Thingstad, Nina Skjæret-Maroni

Abstract

Hand grip strength (HGS) is a key indicator of intrinsic capacity and has shown good predictive ability for morbidity and mortality. Reference values from normative populations are valuable, and such data from the Norwegian population are scarce. Normative values for the digital Jamar+ dynamometer are largely lacking. HGS was assessed in the Norwegian Tromsø study, survey 7 in 2015-2016 for 7824 participants (9324 invited) aged 40+ using a Jamar+ digital dynamometer, and three measurements for each hand were performed following the Southampton protocol. To account for non-response, full Tromsø population data, by age, education and sex, were collected from registry data from microdata.no, a service from Statistics Norway, and were then used as post-stratification weights, to provide standardized HGS values. HGS was higher in men than in women and inversely associated with age. Men and women with a history of non-communicable diseases had lower HGS than those without these conditions, while osteoarthritis was associated with lower HGS only among men. Lower height was associated with lower HGS, especially at younger ages in men. This article provides up-to-date references values for HGS in the community-dwelling population aged 40+ with or without osteoarthritis or non-communicable diseases, in Tromsø, Norway. These reference values will guide clinicians and researchers.

Odd-Einar Svinøy, Gunvor Hilde, Astrid Bergland, Bjørn Heine Strand