Zoekresultaten

Validity of three accelerometers to investigate lying, sitting, standing and walking

BACKGROUND: Hospital stays are associated with high levels of sedentary behavior and physical inactivity. To objectively investigate physical behavior of hospitalized patients, these is a need for valid measurement instruments. The aim of this study was to assess the criterion validity of three accelerometers to measure lying, sitting, standing and walking. METHODS: This cross-sectional study was performed in a university hospital. Participants carried out several mobility tasks according to a structured protocol while wearing three accelerometers (ActiGraph GT9X Link, Activ8 Professional and Dynaport MoveMonitor). The participants were guided through the protocol by a test leader and were recorded on video to serve as reference. Sensitivity, specificity, positive predictive values (PPV) and negative predictive values (NPV) were determined for the categories lying, sitting, standing and walking. RESULTS: In total 12 subjects were included with a mean age of 49.5 (SD 21.5) years and a mean body mass index of 23.8 kg/m2 (SD 2.4). The ActiGraph GT9X Link showed an excellent sensitivity (90%) and PPV (98%) for walking, but a poor sensitivity for sitting and standing (57% and 53%), and a poor PPV (43%) for sitting. The Activ8 Professional showed an excellent sensitivity for sitting and walking (95% and 93%), excellent PPV (98%) for walking, but no sensitivity (0%) and PPV (0%) for lying. The Dynaport MoveMonitor showed an excellent sensitivity for sitting (94%), excellent PPV for lying and walking (100% and 99%), but a poor sensitivity (13%) and PPV (19%) for standing. CONCLUSIONS: The validity outcomes for the categories lying, sitting, standing and walking vary between the investigated accelerometers. All three accelerometers scored good to excellent in identifying walking. None of the accelerometers were able to identify all categories validly.

Ontwikkeling en implementatie van een geriatrisch revalidatieprogramma CO-FIT+

The immediate influence of implicit motor learning strategies on spatiotemporal gait parameters in stroke patients

Objectives: To investigate immediate changes in walking performance associated with three implicit motor learning strategies and to explore patient experiences of each strategy. Design: Participants were randomly allocated to one of three implicit motor learning strategies. Within-group comparisons of spatiotemporal parameters at baseline and post strategy were performed. Setting: Laboratory setting. Subjects: A total of 56 community-dwelling post-stroke individuals. Interventions: Implicit learning strategies were analogy instructions, environmental constraints and action observation. Different analogy instructions and environmental constraints were used to facilitate specific gait parameters. Within action observation, only videotaped gait was shown. Main measures: Spatiotemporal measures (speed, step length, step width, step height) were recorded using Vicon 3D motion analysis. Patient experiences were assessed by questionnaire. Results: At a group level, three of the four analogy instructions (n=19) led to small but significant changes in speed (d=0.088m/s), step height (affected side d=0.006m) and step width (d=–0.019m), and one environmental constraint (n=17) led to significant changes in step width (d=–0.040m). At an individual level, results showed wide variation in the magnitude of changes. Within action observation (n=20), no significant changes were found. Overall, participants found it easy to use the different strategies and experienced some changes in their walking performance. Conclusion: Analogy instructions and environmental constraints can lead to specific, immediate changes in the walking performance and were in general experienced as feasible by the participants. However, the response of an individual patient may vary quite considerably.

Onderzoek Den Haag Seniorvriendelijke Stad 2020.

Begin 2020 heeft de gemeente Den Haag aan De Haagse Hogeschool (Lectoraat Urban Ageing) gevraagd om samen met Hulsebosch Advies en AFEdemy een integrale monitor te ontwikkelen en uit te voeren waarbij, door middel van kwalitatieve en kwantitatieve methoden, onderzoek wordt gedaan naar de stand van zaken van Den Haag als seniorvriendelijke stad en tevens te kijken naar huidige trends aangaande ouderen. Tevens vroeg de gemeente om de ontwikkeling van een meetinstrument dat in de toekomst eenvoudig bij herhaling kan worden ingezet voor onderzoek: de standaard Age Friendly Cities and Communities Questionnaire (AFCCQ) voor ouderen1. In een stadsenquête en in zogenaamde stadsateliers zijn ouderen gevraagd naar hun bevindingen. In totaal hebben 393 Haagse ouderen meegedaan aan de enquête en 50 aan de stadsateliers. De aan de ouderen gestelde vragen gingen over de volgende acht onderwerpen die volgens de Wereldgezondheidsorganisatie (WHO) gezamenlijk de seniorvriendelijkheid van een stad bepalen: ●Huisvesting; ●Sociale participatie; ●Respect en sociale inclusie; ●Burgerschap en werkgelegenheid; ●Communicatie en informatie; ●Sociale en gezondheidsvoorzieningen; ●Buitenruimte en gebouwen; ●Transport; ● en aanvullend, een negende domein: Financiën. CC-BY NC ND https://www.dehaagsehogeschool.nl/onderzoek/lectoraten/details/urban-ageing#over-het-lectoraat

What’s keeping people after stroke from walking outdoors to become physically active? A qualitative study, using an integrated biomedical and behavioral theory of functioning and disability

Background: In general people after stroke do not meet the recommendations for physical activity to conduct a healthy lifestyle. Programs to stimulate walking activity to increase physical activity are based on the available insights into barriers and facilitators to physical activity after stroke. However, these programs are not entirely successful. The purpose of this study was to comprehensively explore perceived barriers and facilitators to outdoor walking using a model of integrated biomedical and behavioral theory, the Physical Activity for people with a Disability model (PAD). Methods: Included were community dwelling respondents after stroke, classified ≥ 3 at the Functional Ambulation Categories (FAC), purposively sampled regarding the use of healthcare. The data was collected triangulating in a multi-methods approach, i.e. semi-structured, structured and focus-group interviews. A primarily deductive thematic content analysis using the PAD-model in a framework-analysis’ approach was conducted after verbatim transcription. Results: 36 respondents (FAC 3–5) participated in 16 semi-structured interviews, eight structured interviews and two focus-group interviews. The data from the interviews covered all domains of the PAD model. Intention, ability and opportunity determined outdoor walking activity. Personal factors determined the intention to walk outdoors, e.g. negative social influence, resulting from restrictive caregivers in the social environment, low self-efficacy influenced by physical environment, and also negative attitude towards physical activity. Walking ability was influenced by loss of balance and reduced walking distance and by impairments of motor control, cognition and aerobic capacity as well as fatigue. Opportunities arising from household responsibilities and lively social constructs facilitated outdoor walking. Conclusion: To stimulate outdoor walking activity, it seems important to influence the intention by addressing social influence, self-efficacy and attitude towards physical activity in the development of efficient interventions. At the same time, improvement of walking ability and creation of opportunity should be considered

Possibilities of using the Rollz Motion Smart for gait analysis in rehabilitation of stroke patients

The Rollz Motion Smart rollator detects posture, gait and activity of a user and provides feedback. • Various programs to train the user and optimize walking performance. • Measuring gait parameters like velocity, step time, step length, distance between person and rollator. • Visual, tactile and auditory cues help the user to take the first step or maintain a suitable walking rhythm.