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Non-visual effects of light (NiviL): optimized light to improve health of elderly people in senior residences

Non-visual effects of light (NiviL): optimized light to improve health of elderly people in senior residences

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00012470
Enrollment
140
Registered
2017-06-12
Start date
2016-10-20
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

kognitiver Status in elderly people

Interventions

Group 1: Spectral modulated LED-light: 1500Lux (8 a.m. - 4 p.m.) – 480Lux (4 p.m. - Sleeping time) Total time of intervention: 12 weeks in winter 1 and 12 weeks in winter 2 Group 2: Light as usual <50

Sponsors

Universitätsklinikum Tübingen
Lead Sponsor

Eligibility

Sex/Gender
All
Age
65 Years to No maximum

Inclusion criteria

Inclusion criteria: - Nursing home residents in Markwasen in Reutlingen and Herzog-Christoph in Bad Urach - Residents that are not able to give consent (with consent from their legal adviser - Nursing staff

Exclusion criteria

Exclusion criteria: - Severe affective disorder (GDS > 9) - Diseases that can cause damage to the cirkadian effective intrinsic photosensitive ganglion cells (IpRGC) (e.g. glaucoma, Opticusneuropathy) - Insufficient knowledge of German language - advanced state of cataract - Palliativesituation

Design outcomes

Primary

MeasureTime frame
Increased Activity (Questionnaire/Surveillance questionnaire ADL, GDS, Actimetry) at Week 0 (Baseline), Week 3, week 6, week 12

Secondary

MeasureTime frame
Improved mental state (questionnaire SF12), Change of circadiane rhythm (Actigraphy, Melatonin-measurement), Mood (Questionnaires GDS, OERS) and Cognition (Audio reaction time test AuReTim, questionnaire DemTect) at Week 0 (Baseline) week 3, week 6 and week 12

Countries

Germany

Contacts

Public ContactGerhard Eschweiler

Geriatrisches Zentrum des Universitätsklinikums Tübingen

gerhard.eschweiler@med.uni-tuebingen.de+49 7071 29-85222

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026