The purpose of this research is to survey the relationship between range of the

ankle motion and Q angle and back stroke kicking on male swimmers. 34 on

available boy students swimmers were selected with mean and SD of age

23.68±2.28 years, weight 71.88±9.35 kg and height 176.11±5.52 cm in this

study. First, Right and Left Leg Q angles (to supine position), Range of Dorsal

flexion and plantar flexion motion were measured by the use of goniometry. And

their mean were calculated Right and Left Leg Q angles. Then test was

recorded of back stroke and kicking in distance 15 meter of pool. The number of

back stroke kicking done by the use of three referees and cinematography

technique. Later, the distance for per back stroke kicking was calculated by the

use of mathematical formula. The results of Pearson correlation coefficient

showed the significant positive correlation between Q angle with record of back

stroke kicking (r = -0/67, p ≤ 0/05). The results showed that swimmers may not

use all their range of the ankle motion, but optimized range of the ankle motion

to be their consideration. Also, Q angle measure (Q ≤ 16/23) could be important

in success, Talent Identification and selection of mentioned swimmers