One of the main features of motory is coordination. In order to understand the hand coordination of disabled swimmers swimming in freestyle better, it’s vital to asses their body stability in water. The goal of the research is to measure the body stability in water and hand coordination of disabled swimmers function class swimming in freestyle. 6 disabled swimmers took part in the research. They were filmed from the front and from the side using an underwater filming system that was moving along the side of the pool. While filming from the side, camera was tracking the swimmer in order to capture five swimming cycles, both: from the right and the left sides of the body. While filming from the front, camera was still and the swimmers were swimming towards it; this was done to determine the swinging of their bodies along the longitudinal axis. Body’s stability was measured in two ways: when the swimmer was evenly lying on the surface of the water and when swimming in freestyle. Stability was valued on two planes (in sagittal and transverse) analyzing video data captured while swimming in freestyle. With the help of computer program SIMI MOTION 2 D still mode, angles in sagittal plane were measured: between trunk and horizontal; between leg and horizontal; between the body’s line (the straight connecting the joints of knee and shoulder) and horizontal. In the transverse plane, the angle between the straight connecting shoulders joints and horizontal were measured... [to full text]