Table 2

Frontal plane knee angles (°)

All subjectsGoodReducedPoorSig.
SLS, right leg17±11 [–20 to 46] (n = 183)6±10 [–20 to 22] (n = 20)13±7 [–5 to 31] (n = 105)26±8 [8 to 46] (n = 58)<0.001
SLS, left leg13±10 [–11 to 54] (n = 183)5±7 [–11 to 25] (n = 33)12±8 [–11 to 34] (n = 105)23±9 [–3 to 54] (n = 45)<0.001
SLVDJ, right leg3±7 [–25 to 18] (n = 182)1±6 [–26 to 13] (n = 63)4±6 [–11 to 17] (n = 105)8±5 [–1 to 18] (n = 13)<0.001
SLVDJ, left leg2±7 [–13 to 18] (n = 182)–1±6 [–14 to 12] (n = 80)3±6 [–10 to 18] (n = 96)5±10 [–11 to 18] (n = 6)<0.001
VDJ, right leg9±10 [–25 to 37] (n = 184)***
VDJ, left leg7±9 [–17 to 31] (n = 184)***
VDJ right/left1±6 [–13 to 11] (n = 46)7±5 [–4 to 19] (n = 66)13±5 [0 to 25] (n = 72)<0.001
  • Mean±SD with range for SLS, SLVDJ and VDJ, as well as for each of the subjectively assessed groups within each test.

  • * During the VDJ test the players were rated subjectively assessing both legs simultaneously.

  • SLS, single-leg squat; SLVDJ, single-leg vertical drop jump; VDJ, two-leg vertical drop jump.