Nature walks may ease prolonged grief, study finds
NCT ID NCT06904976
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a 2-week nature-based contemplation program could improve spiritual well-being and reduce grief symptoms in 262 adults with moderate prolonged grief. Participants either practiced mindful nature contemplation, simply noticed nature, or were on a waitlist. The goal was to see if focused contemplation offers extra benefits beyond just being outdoors.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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262 people
The number who actually took part.
- Started
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Mar 2025
- Finished
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Oct 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Be a family member, spouse, or friend of a person who died at least 6 months prior to study enrollment; * Be ≥18 years of age; * Report moderate subclinical grief (score range from 47-70) based on the Traumatic Grief Inventory-Self Report Plus (TGI-SR+, Lenferink, Eisma, et al., 2022); * Have access to a natural environment suitable for the intervention; * Be willing and able to move in nature daily (with or without mobility assistance devices) and engage in brief mindfulness practices; * Have sufficient Dutch language proficiency; * Have access to Internet and mobile applications. Exclusion Criteria: * Acute suicide risk assessed in the screening step; * A score lower than 47 or higher than 70 on TGI-SR+; * Physical limitations that prevent moving outdoors for 30 minutes daily, even with mobility assistance devices.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of Twente
Enschede, 7522 NB, Netherlands
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