## 1 Introduction  
Inter-limb asymmetry has been mostly researched from the aspect of sports injury risk, especially in view of athletes returning to sport after anterior cruciate ligament reconstruction [1; 2; 3; 4]. Only recently, the relationship between inter-limb asymmetry and sports performance has been a popular topic of investigation [5; 6]. Inter-limb asymmetry is found to be a normal adaptation in many sports that involve unilateral movements (e.g., cricket) [7], but further research in team sports is needed to elucidate whether asymmetries influence performance or injury risk [5; 6]. Lately researchers are trying to elucidate whether asymmetries (and which particular type of asymmetry) influence performance [8]. Inter-limb asymmetry may present at the level of different motor abilities (e.g., strength, power, and range of motion) and can be measured locally (e.g., one joint) and globally (e.g., within a complex movement, such as vertical jump). Therefore, various methods have been used for its quantification [9], however, many studies used local knee isokinetic dynamometry [10; 11], isometric mid-thigh pull (IMTP) [12; 13] or vertical jump tests [14; 15; 16; 17; 18]. Further, [PERSON] and [PERSON]'s [19] model of change of direction (COD) determinants showed that asymmetries could negatively affect COD performance. However, supporting evidence is inconsistent. Two studies investigated the relationship between local inter-limb knee strength asymmetry and performance in COD. [PERSON] et al. [10] showed mostly positive correlation between different parametersand speed of isokinetic strength asymmetries during knee flexion and extension and T-test performance (\(r\) = 0.638, 0.669, \(p\) < 0.01). Exception was one negative correlation (\(r\) = \(-\)568, \(p\) < 0.01) between peak torque during knee extension (240\({}^{\circ}\)/s) and T-test performance. Similarly, [PERSON] et al. [11] observed that the same local asymmetries negatively impact COD performance (T-test and 180\({}^{\circ}\) turn test) (\(r\) = 0.397-0.614, \(p\) < 0.05). As the mentioned studies measured local strength asymmetries in the knee joint, they demonstrate the need to study proximal body parts like hip and trunk. When it comes to the relationship between global asymmetries and performance in COD, results are less consistent. Many studies, using different tests for assessing asymmetries and COD performance, did not detect a relationship between global asymmetries and COD performance. [PERSON] [12] investigated the relationship between peak torque asymmetry during IMTP and COD ability (assessed as 180\({}^{\circ}\) turn test) and reported no significant correlation. However, he used bilateral IMTP to quantify asymmetry, which may have influenced methodological validity. While this methodological shortcoming was corrected by [PERSON] et al. [13], who used unilateral IMTP test, they have not found any significant correlation between inter-limb asymmetry in various parameters related to unilateral IMTP and COD performance (\(r\) \(\leq\) 0.35, \(p\) \(\geq\) 0.380). [PERSON] et al. [14] have not found any significant correlation between asymmetry in single-leg countermovement jump (SLCMJ) height and COD ability (three-cone drill). Although reporting high average asymmetry in jump height and length (up to 10.2%), [PERSON] et al. [15], have not found any significant correlation between these asymmetries and COD (505 and T-test) performance (\(r\) = 0.00-0.018, \(p\) = 0.31-0.99). Similarly, [PERSON] et al. [16] found no significant correlations between asymmetries in horizontal jumping tasks and performance in two COD tasks (\(r\)\(\leq\) 0.35, \(p\) > 0.05). Furthermore, [PERSON] et al. [20] have not found a relationship between asymmetry in jump height during SLCMJ and V-cut COD test (\(r\) = 0.10, \(p\) > 0.05). Finally, [PERSON] et al. [18], have found no significant correlation between asymmetries in different parameters during single leg vertical jumps and performance in zig-zag test.