This scientific paper includes research of postural deformities influence at walking abilities. Research was provided at the sample of hundred and twenty male students, age between sixteen and seventeen years. Main aim of research is quantity finding of transversal and vertical amplitudes, for characteristic body parts, during the walking on running treadmill as well as determination of posture status influence at same phenomena. The level of departure was compared with assessment of body deformities according to the SAS method. After the all data input and statistical analysis of the results (descriptive statistics, canonic correlation analysis), at the statistical significant level p0,05 , the conclusion can confirm the fact of existing postural deformities influence at transversal end vertical amplitudes, for characteristic body parts, measured during the walking on treadmill.