Introduction: The Y Balance Test is a reliable and valid test of dynamic balance. It serves as a screening test for diagnostic purposes and as an assessment tool for clinical purposes to measure balance when monitoring the progress of rehabilitation or exercise programs. The test is a modification of the Star Excursion Balance Test (SEBT) with only three reach directions: anterior, posteromedial, and posterolateral. In the test, the subject maintains balance on the standing leg while reaching in three directions with the non-standing leg to reach the longest possible distance. Purpose: This master’s thesis aims to establish normative values for various age groups (20–29 years, 30–39 years, 40–49 years, 50–59 years, 60–69 years, and 70 years and older) in the Y Balance Test in males and females. Methods: 144 healthy volunteers, out of which 72 were men and 72 women, participated in the study. In each age group, there were 12 male and 12 female individuals. They were divided into six age groups: group 1 (20–29 years), group 2 (30–39 years), group 3 (40–49 years), group 4 (50–59 years), group 5 (60–69 years) and group 6 (70 years and older). Each participant performed a Y Balance Test on the instrumental apparatus with three trial and three test measurements in all three directions. The data were then normalized and statistically processed using SPSS 27 program. Results: The average normalized reach by age group is the highest in the age group of 20–29 years. The reach by age group decreases from the youngest to the oldest age decade. In the age group of 20–29 years, there are statistically significant differences in all the studied measures, with males having higher mean measurements than females (p < 0.05). There are also statistically significant differences in the age group of 30–39 years for the right anterior and left anterior variables, with males again having higher mean measurements than females. For the other variables and age groups, there are no statistically significant differences between males and females (p > 0.05). Discussion and conclusion: The results have shown that the achieved distance with the leg decreases with age. The older participants, compared to the younger individuals, reached shorter distances in all the directions. The achieved distance is shorter in younger females in comparison with males, yet, with age, no statistically significant differences between sexes have been found.
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