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. 2025 Aug 22;15:30970. doi: 10.1038/s41598-025-14107-8

Table 4.

Criteria and definitions for measuring recreation comforting degree.

Dimensions & sub- criteria Descriptions Relevant sources
Physiological comforting degree (PHC)
Relaxing the body (PHC1) Feeling the beauty of the natural environment and relaxing the body Ohe et al.50 ; CA.
Breathing fresh air (PHC2) Feeling smooth breathing and refreshment Pereira et al.25; CA.
Nurturing and conditioning one’s health (PHC3) Feeling better immunity and less physical pains Ahmadpour et al.15
Physical function training (PHC4) Experience outdoor entertainment activities such as running, identifying flowers and plants, fishing, rowing, etc. Wanget al.51; CA.
Psychological comforting degree (PSC)
Ecological aesthetic experience (PSC1) Feeling the natural and ecological beauty of the landscape Din et al.52;CA.
Attaining positive emotions (PSC2) Can release inner emotions and have more positive emotions Leong et al.53; CA.
Evoking tourism memories (PSC3) A nostalgic journey triggered by the sights, sounds, and smells of nature, revisiting past experiences and emotions CA.
Addressing psychological issues (PSC4) Reducing mental pain and promoting emotional health in the natural environment Lin et al.13
Spiritual comforting degree (SPC)
Enhancing ecological knowledge (SPC1) Through learning and experience, deepen personal awareness and understanding of the importance of natural ecosystems and environmental protection CA.
Improve mental state (SPC2) Profound realization of life’s essence and value through observing and experiencing the beautiful moments in life Lin et al.13
Appreciate local culture (SPC3) The comprehension of wisdom, values, and humanistic spirit inherent in diverse regions and ethnic cultures through deep understanding and experience CA.
Undergoing a spiritual cleansing (SPC4) Originating from nature, art, philosophy, or religion, it purifies and elevates an individual’s inner world Terzidou et al.54; CA.
Social comforting degree (SOC)
Sharing online (SOC1) Proactively share travel experiences and experiences on social media Riperet et al.55; CA.
Community interaction (SOC2) Participate in local social activities to gain a sense of community and belonging Qu et al.56; CA.
Reception service (SOC3) Enjoy a caring and comfortable service experience during travel Zhang et al.57; CA.
Interacting with travel companions (SOC4) More natural, authentic, and friendly communication and cooperation with travel companions Zhou et al.26; CA.

CA. = content analysis (of keywords).