EN
Introduction: Structural stability assess of the impact of the sense of the reactions equivalent. The aim of this study was to determine the importance of maintaining control patterns in static equilibrium of women after mastectomy. Materials and methods: The study included 150 women. In the first group there were 75 women after mastectomy, mean age 60 (±7,6), mean BMI 26 (±3,6). In the control group there were 75 age matched women (59 (±6,5), BMI 26 (±7,9) without a history of cancer diseases. The study was conducted using a tensometric platform. Quantification was composed of two 30-second test, the first test with eyes open and a second after 5-10 second pause with eyes closed. Results: It was found that there were significant statistical differences within a significant part of the measured parameters with eyes closed, and for all the Romberg parameters. There were: COP (centre of pressure) path length (p = 0.0411), the COP path length measured in the anterior-posterior direction (p = 0.0251), the average tilt COP (p = 0.0025), the maximum swing in the x-axis (relating to the range lateral stability) (p = 0.0447). In addition, there were statistically significant differences between the parameters: the average speed of a moving 2D COP (p = 0.0432) and the y-axis (p = 0.0240). Conclusion: Balance after mastectomy was less dependent on the vision than in the control group. Physiotherapy program after mastectomy should include proprioceptive training, with closed eyes to improve the equilibrium reaction quality and increase the postural stability.