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A Study on the Effects of Forest Therapy on Sarcopenia

2. juni 2026 opdateret af: National Taiwan University Hospital

Purpose: The goal of this study is to investigate the effects of an 8-week Forest Based Intervention program on muscle strength, physical performance, and psychological well-being in older women with sarcopenia.

Study Activities: Participants will take part in a structured program at the Caoling Shibi Forest Healing Base in Yunlin.

Duration: The program lasts for 8 weeks, with 2 sessions per week (16 sessions total). Each session is approximately 180 minutes.

Activities: The program includes forest trail walking, resistance training using elastic bands, stretching, and sensory activities such as aromatherapy and deep breathing.

Assessments: Researchers will measure muscle mass, handgrip strength, walking speed, and balance. Participants will also complete questionnaires regarding their mood, sleep quality, and quality of life. These assessments occur before the program, immediately after, and at a 2-month follow-up.

Goal: We hope to determine if combining structured exercise with the forest environment can effectively improve the health and quality of life for older women with sarcopenia.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Background and Rationale: Sarcopenia is a common skeletal muscle disease in the elderly characterized by the loss of muscle mass, strength, and physical performance. While resistance training and nutrition are core management strategies, Forest Healing has been shown to reduce stress (cortisol), regulate the autonomic nervous system, and improve immune function. This study aims to validate a standardized "manualized" forest healing intervention for sarcopenia, utilizing a cross-border collaboration framework between Taiwan and South Korea.

Study Design: This is a single-arm, pre-post intervention study (quasi-experimental design). The study will recruit 36 women aged 55 or older who meet the AWGS 2025 criteria for sarcopenia (low handgrip strength and low skeletal muscle mass index).

Intervention Protocol: The intervention occurs at the Caoling Shibi Forest Healing Base (altitude 1,500-1,700m). Each 180-minute session includes:

Aerobic and Balance Training: Forest trail walking at a Rating of Perceived Exertion (RPE) of 12-13.

Resistance Training: Elastic band exercises for upper and lower limbs (3 sets of 8-10 repetitions) at RPE 9-13.

Core Forest Therapy: Sensory awareness, aromatherapy, and deep breathing to promote relaxation.

Psychological Promotion: Group interactions and experience sharing to enhance social connection and motivation.

Outcome Measures:

Primary Outcomes: Muscle strength (measured by handgrip dynamometer) and physical performance (Short Physical Performance Battery, SPPB).

Secondary Outcomes: Muscle mass (measured via BIA), health-related quality of life (SF-36), geriatric depression (SGDS), and sleep quality (PSQI).

Environmental Monitoring: The study will also quantify environmental factors, including phytoncide concentrations, negative ions, and thermal comfort indices (PMV, PPD) to explore the relationship between the environment and health outcomes.

Safety Protocol: To ensure participant safety in a mountain environment, the study has established a three-tier medical safety mechanism, including on-site first aid by certified instructors, local AED medical services, and an emergency medical "green channel" to National Taiwan University Hospital, Yunlin Branch.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

36

Fase

  • Ikke anvendelig

Kontakter og lokationer

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Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

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Ingen

Beskrivelse

Inclusion Criteria:

Female aged 55 years or older. Meet the AWGS 2019 criteria for sarcopenia (including low handgrip strength and low skeletal muscle mass index).

Able to walk independently or with assistive devices and safely participate in low-to-moderate intensity exercise training.

Willing to commit to the 8-week intervention (16 sessions total) and provide signed informed consent.

Exclusion Criteria:

History of major acute illness, hospitalization, or surgery within the past 3 months.

Severe cardiovascular, respiratory, or other systemic diseases that make moderate-intensity exercise unsafe.

Severe osteoarticular or neurological disorders that significantly impair walking or exercise safety.

Severe cognitive impairment that prevents understanding of study procedures or cooperation with the intervention.

Presence of implanted medical devices (e.g., pacemakers) that would interfere with bioelectrical impedance analysis (BIA).

Regular participation in structured resistance training or high-intensity exercise within the past 3 months.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Forest-Based Intervention Group

Participants will undergo an 8-week structured forest healing program (2 sessions/week, 16 sessions total) at the Caoling Shibi Forest Healing Base

. Each 180-minute session, led by certified instructors, includes forest trail walking (aerobic/balance), elastic band resistance training, nature-based sensory immersion (forest therapy), and group psychological support. The intervention follows a standardized manual focused on improving muscle strength and physical function.
Adfærdsmæssigt: Forest-Based Intervention Program
An 8-week structured intervention (16 sessions total, 180 min each) conducted at the Caoling Shibi Forest Healing Base. The program integrates physical exercise (forest trail walking and elastic band resistance training) with nature-based sensory immersion (aromatherapy, deep breathing, and nature awareness). The intervention follows a manualized protocol led by certified instructors, specifically designed to improve muscle strength, physical function, and psychological well-being in older women.
Andre navne:
  • Forest Therapy

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Handgrip Strength
Tidsramme: Baseline, 8 weeks, and 4 months.
Measured using a Smedley hand dynamometer for the dominant hand to evaluate maximum muscle strength. Handgrip strength is a key clinical indicator for sarcopenia diagnosis.
Baseline, 8 weeks, and 4 months.
Short Physical Performance Battery (SPPB)
Tidsramme: Baseline, 8 weeks, and 4 months.
A standardized assessment of lower extremity function, including balance tests, gait speed tests, and five times chair stand tests. Scores range from 0 to 12, with higher scores representing better physical performance.
Baseline, 8 weeks, and 4 months.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Skeletal Muscle Mass Index (SMI)
Tidsramme: Baseline, 8 weeks, and 4 months.
Measured via Bioelectrical Impedance Analysis (BIA) using the ACCUNIQ BC380. It is calculated as Appendicular Skeletal Muscle mass divided by height squared to track muscle mass changes.
Baseline, 8 weeks, and 4 months.
Health-Related Quality of Life (SF-36)
Tidsramme: Baseline, 8 weeks, and 4 months.
Assessed using the Taiwan version of the Short Form-36 Health Survey, covering eight domains of physical and mental health.
Baseline, 8 weeks, and 4 months.
Geriatric Depression Scale (SGDS)
Tidsramme: Baseline, 8 weeks, and 4 months.
The Taiwan short-form version (SGDS) is used to evaluate changes in depressive symptoms among participants.
Baseline, 8 weeks, and 4 months.
Pittsburgh Sleep Quality Index (PSQI)
Tidsramme: Baseline, 8 weeks, and 4 months.
The Taiwan version is used to assess sleep quality over the previous month, including sleep duration, efficiency, and disturbances.
Baseline, 8 weeks, and 4 months.
Positive and Negative Affect Schedule (PANAS)
Tidsramme: Baseline, 8 weeks, and 4 months.
Used to measure changes in positive and negative emotional states following the forest healing intervention.
Baseline, 8 weeks, and 4 months.

Samarbejdspartnere og efterforskere

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Sponsor

National Taiwan University Hospital

Samarbejdspartnere

Chungnam National University

Efterforskere

  • Ledende efterforsker: Kai-Chieh Chang, MD, National Taiwan University Hospital

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

13. maj 2026

Primær færdiggørelse (Anslået)

26. juni 2026

Studieafslutning (Anslået)

11. maj 2027

Datoer for studieregistrering

Først indsendt

2. juni 2026

Først indsendt, der opfyldte QC-kriterier

2. juni 2026

Først opslået (Faktiske)

8. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

8. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 202603112RINA

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