Table 1.
Popularity of community sports in Korea, Japan, and the USA.
Table 2.
Sports characteristics.
Table 3.
Textbooks.
Table 4.
Sample characteristic (actual physical activity).
Table 5.
SNS (Instagram).
Fig 1.
Textbooks.
Table 6.
Network overlaps (textbook vs. country-by-country).
Table 7.
Network overlaps.
Fig 2.
Textbooks and survey (actual physical activity).
Fig 3.
SNS and survey (actual physical activity).
Table 8.
Network overlaps (SNS vs. survey).
Fig 4.
Sport classification—Top 30.
Table 9.
Ranking of pairs (Top 30—Sport classification).
Fig 5.
The K-12 Physical Education System Survey, SNS activity—Top 10 (Korea, USA, Japan).
Fig 6.
Survey (actual physical activity)—Top 10 (Korea, USA, Japan).
Fig 7.
SNS activities—Top 10 (Korea, USA, Japan).
Fig 8.
Highly connected sports (Sport classification).
Fig 9.
Highly connected sports (Textbook).
Fig 10.
Highly connected sports (Survey).
Fig 11.
Highly connected sports (SNS).
Table 10.
Ranking of four fields (Sport types linked).
Fig 12.
Comparison with textbooks.
Fig 13.
Comparison with survey.
Fig 14.
Comparison with SNS.