| Learning sport subjects_degree | Learning sport subjects_indegree | Learning sport subjects_status | Learning sport subjects_pagerank | Learning sport subjects_authority | |
| Being student (=0) or instructor (=1) | 0.264(*) | 0.333(**) | 0.317(**) | 0.361(**) | 0.237 |
| 0.032 | 0.006 | 0.010 | 0.003 | 0.055 | |
| Desire for distinction as a professional | −0.323(*) | −0.298 | −0.304 | −0.264 | −0.328(*) |
| 0.037 | 0.055 | 0.050 | 0.091 | 0.034 | |
| Gender | −0.174 | −0.271(*) | −0.263(*) | −0.267(*) | −0.273(*) |
| 0.163 | 0.028 | 0.033 | 0.030 | 0.026 | |
| Have traveled for sport reasons | 0.146 | 0.334(*) | 0.324(*) | 0.338(*) | 0.281 |
| 0.333 | 0.023 | 0.028 | 0.022 | 0.058 | |
| The subject content is important for being interested | 0.243 | 0.368(*) | 0.391(**) | 0.344(*) | 0.382(**) |
| 0.104 | 0.012 | 0.007 | 0.019 | 0.009 | |
| Being interested in medical subjects | −0.095 | −0.278 | −0.294(*) | −0.338(*) | −0.213 |
| 0.528 | 0.061 | 0.048 | 0.022 | 0.155 |