Clinical diagnoses of jumper’s knee in volleyball players (n = 57, tendons = 114)
| First grade/year of birth 1987 | Second grade/year of birth 1986 | Third grade/year of birth 1985/84 | ||||
|---|---|---|---|---|---|---|
| Male (n = 22) | Female (n = 22) | Male (n = 20) | Female (n = 20) | Male (n = 16) | Female (n = 14) | |
| There were 114 tendons. | ||||||
| Jumper’s knee | 2 | 0 | 4 | 2 | 4 | 0 |