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Effects of Forest Therapy on Physical and Psychological Parameters in the General Population

Forest Therapy on Physical and Psychological Parameters in the General Population

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05338372
Enrollment
178
Registered
2022-04-21
Start date
2022-05-02
Completion date
2022-06-04
Last updated
2022-10-13

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

Conditions

General Population

Brief summary

In recent years, nature and forest therapy has increasingly become the focus of medical research. Recent scientific findings indicate overall positive effects of nature and forest therapy on physical and mental health. In Asia and Australia, it has already been implemented as a public health concept of prevention and health promotion. The aim of the project is to replicate the experience gained in Asia over the last three decades on the physical and psychological effects of nature/forest therapy in the context of the German forest and to investigate it further scientifically.

Interventions

BEHAVIORALTwo days forest therapy

Participants attend two days (with a break day in between) of two-hour forest therapy at the Friedrichsruh, Barntrup or Wernigerode sites, led by an INFTA-certified forest therapy guide.

BEHAVIORALThree days forest therapy

Participants attend three days of two-hour forest therapy at the Friedrichsruh, Barntrup or Wernigerode sites, led by an INFTA-certified forest therapy guide.

Sponsors

Charite University, Berlin, Germany
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
Yes

Inclusion criteria

* Women and men aged 18 to 90 years. * Capacity to consent

Exclusion criteria

* Serious acute or chronic medical conditions * Immobility or limitation of mobility due to orthopedic, neurological or other medical causes * Participation in another study * Serious mental illness * Pregnancy and lactation

Design outcomes

Primary

MeasureTime frameDescription
Profile of Mood States (POMS)Change from baseline POMS score at 3 daysAssessing full scale, range 1-7, lower score meaning a better outcome

Secondary

MeasureTime frameDescription
Subjective Vitality Scale state (SVS-G state)Change from baseline SVS-G score at 3 daysAssessing full scale, range 1-80, higher score meaning a better outcome
Complaint List (B-LR)Change from baseline B-LR score at 3 daysAssessing full scale, range 1-50, lower score meaning a better outcome
Perceive Stress Questionaire (PSQ)Change from baseline PSQ score at 3 daysAssessing full scale, range 1-40, lower score meaning a better outcome
Perceived Benefits of Nature Questionnaire (PBNQ)Change from baseline PBNQ score at 3 daysAssessing full scale, range 1-7, lower score meaning a better outcome
PROMIS Scale v1.2 - Global HealthChange from baseline PROMIS score at 3 daysThe scale ranges from 1 to 5, where 1 is the lowest level and 5 is the highest level. Higher scores reflect better functioning.
Allgemeine Selbstwirksamkeit Kurzskala (ASKU)Change from baseline ASKU score at 3 daysAssessing full scale, the scale ranges from 1 to 5. Higher scores correspond to better outcomes.
State-Trait Anxiety Inventory (STAI)Change from baseline STAI score at 3 daysAssessing state anxiety. The scale ranges from 1 to 8. Higher scores correspond to higher levels of anxiety (after recoding three inverted items).

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026