Overview of group affiliation, performance level and relevant demographic variables
| Group affiliation | n | % |
| Olympic and Paralympic athletes (Sample 1) | 57 | 53.8 |
| NISO-athletes (Sample 2) | 49 | 46.2 |
| Performance level | ||
| Highest international level; World Cup, World and European Championship, Olympics, Paralympics (Tier 4/5) | 62 | 58.5 |
| High international level; but not World Cup, World- and European Championships, Olympics, Paralympics (Tier 4) | 13 | 12.3 |
| Highest national level (Tier 3) | 21 | 19.8 |
| High national level (Tier 3) | 10 | 9.4 |
| Relevant demographic variables | n | % |
| Female athletes | 54 | 50.9 |
| Male athletes | 52 | 49.1 |
| Mean age: 26.95 (SD=5.566, Range 19–51) | – | – |
| Average weekly practice: 16.43 hours (SD=4.292, Range 8–28) | – | – |
| Number of different sports included in the study | 24 | – |
| Individual sport, summer (no. of athletes) | 26 | 24.5 |
| Team sport, summer (no. of athletes) | 47 | 44.3 |
| Individual sport, winter (no. of athletes) | 21 | 19.8 |
| Team sport, winter (no. of athletes) | 12 | 11.3 |
| Full-time athletes | 49 | 46.2 |
| Part-time athletes (combine their sport with studies and/or work) | 57 | 53.8 |
| Medals from European Championship, World Championship, Olympics, or Paralympics | 44 | 41.5 |
| Able-bodied athletes | 100 | 94.3 |
| Paralympic athletes | 6 | 5.7 |