Prusak Jarosław, Kurzeja Piotr, Szurmik Tomasz, Mrozkowiak Mirosław, Umławska Wioleta. Postural stability in patients with cystic fibrosis. Journal of Education, Health and Sport. 2018;8(9):1361-1375 eISNN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.1433732 http://ojs.ukw.edu.pl/index.php/johs/article/view/6054 https://pbn.nauka.gov.pl/sedno-webapp/works/878777 The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part b item 1223 (26/01/2017). 1223 Journal of Education, Health and Sport eissn 2391-8306 7 © The Authors 2018; This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike. (http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 02.08.2018. Revised: 18.08.2018. Accepted: 23.09.2018. Postural stability in patients with cystic fibrosis Jarosław Prusak1,2, Piotr Kurzeja2, Tomasz Szurmik3, Mirosław Mrozkowiak4, Wioleta Umławska5 1Institute for Tuberculosis and Lung Diseases, Department in Rabka-Zdrój 2Podhale State College of Applied Sciences in Nowy Targ 3University of Silesia, Faculty of Ethnology and Educational Science in Cieszyn 4Kazimierz Wielki University in Bydgoszcz 5Department of Human Biology, University of Wroclaw Summary Aim of the study: The aim of the study was to evaluate the postural stability in a group of patients with cystic fibrosis. Material and methods: The study included a group of 44 patients with cystic fibrosis with the analysis of parameters in the age groups under 16 years (mean 10,1 ± 3,6) and over 16 years (mean 23,6 ± 7,3). For stabilometric measurements, a two-plate CQ Stab posturograph and for body posture measurements Posturometr-S was used. Results: The mean value of the SP body balance COP index in the measurement with open eyes was 336,1 ± 123 mm in the younger group and 201,3 ± 47 mm in the older age group. The results differed significantly in the measurement with closed eyes in both age groups, similarily to the other indicators of the balance in the assessment for each planes. The indicators associated with the assessment of COP displacement significantly correlated negatively with the age of the subjects, where for the measurement with eyes closed this relationship was the highest in the group up to 16 years and was r = - 0,90 (p <0,0001) and the size of the chest kyphosis angle ( for the whole group: r = - 0,45, p = 0,002) and some indicators of the pulmonary system. The correlation value for FEV1% pred., for the whole group, was r = 0,41 (p = 0,005). It was observed that with the age of the subjects, the kyphosis angle increased (for the group > 16 years: r = 0,77, p <0,0001). Conclusions: The results of the study show that with age of the cf patients, changes in the spine in the sagittal plane, the parameters related to postural stability of the body may be improved. Key words: postural stability, cystic fibrosis