| Cluster 1 (Green) | 31 | Trail, Area, National Park, Point, Section, Site, Ridge, Hiking Trail, Impact, Deterioration, Frequency, Degree, Damage, Length, Deterioration Type, Individual, Root Exposure, Trail Condition, Maximum Depth, Soil Hardness, Entire Width, Slope, Vegetation, Species, Tree, Soil, Maintenance, Restoration, Total, Amount, April |
| Cluster 2 (Red) | 31 | Effect, Health, Life, Quality, Positive Effect, Heart Rate, Body, Stress, Depression, Program, Exercise, Walking, Forest Walking Exercise, Rest, Group, Subject, Woman, Man, Adult, Control Group, Significant Difference, T Test, Experiment, Week, Day, June, August, Minute, End, May, October |
| Cluster 3 (Blue) | 30 | Type, User, Respondent, Resident, Use, Visit, Facility, Term, Route, Path, Location, Basic Information, Landscape, Culture, Resource, Questionnaire Survey, Evaluation, Importance, Accessibility, Safety, JirisanTrail, BukhansanNational Park, Urban Area, Attitude, Demand, Variety, Conflict, Focus, Paper, Hand |
| Cluster 4 (Yellow) | 26 | Data, Questionnaire, Factor Analysis, SPSS, Data Analysis, Category, Frequency Analysis, Correlation Analysis, Reliability Analysis, Depth Interview, Satisfaction, Relationship, Variable, Age, Participant, Climber, Participation, Mountain Climbing, Mountaineering, Sample, Object, Year, Third, Sense, Self, First |