“…1 In all cases, the following were measured and performed: (a) the popliteal angle (Holt's angle) 1 [2,4,9,10,[16][17][18], (b) the straight-leg raising angle 2 , (c) the Duncan-Ely test 3 , and (d) the mobility arch of the knee [2,7,11,12,19]. The inclusion criteria were:…”