TY - GEN A1 - Jahnke, Sonja A1 - Prill, Robert A1 - Królikowska, Aleksandra A1 - Oleksy, Łukasz A1 - Cruysen, Caren A1 - Daszkiewicz, Maciej A1 - Kowal, Mateusz A1 - Kentel, Monika A1 - Kentel, Maciej A1 - Michel, Sven A1 - Reichert, Paweł A1 - Becker, Roland T1 - Test learning effects influence coordinative but not strength-related tasks in patients six months after anterior cruciate ligament reconstruction T2 - Journal of clinical medicine N2 - Background: A comprehensive rehabilitation program is recommended following anterior cruciate ligament reconstruction (ACLR) to restore function, strength and lower limb stability. Despite advancements in surgical techniques, high reinjury rates highlight the need to refine rehabilitation strategies. This study investigates performance across various physically demanding tasks and compares outcomes between the injured and uninjured leg, using a modified Back in Action (BIA) test battery. It is hypothesized that due to test learning effects patients exhibit faster improvement in coordinatively demanding tasks compared to strength-related tasks. Methods: Thirty-two patients (aged 18–40) following primary unilateral ACLR participated in a prospective cross-sectional study within the context of a larger trial. Participants completed a modified BIA test battery, including stability, countermovement jump (CMJ), drop landing, speedy jumps, and quick-feet test (QFT). Each test was conducted in three sets, with three immediate repetitions. Self-reported outcomes were also collected. Results: Patients showed significant within-session improvements in coordinative tasks, with 32% in the injured and 26% in the uninjured limb during the speedy jumps [p < 0.05]. No significant learning effects were observed in strength-related tasks (drop landing, stability test, CMJ). Patients with lower baseline performance exhibited greater improvement than patients with higher performance level from baseline. Furthermore, a correlation between self-assessed abilities and actual performance was identified. Conclusions: This study showed that improvement of coordinative tasks after Return to Sport (RTS) testing of ACLR patients are rather affected by test learning effects. In contrast, this phenomenon is not seen in strength-related tasks. Rehabilitation programs should integrate both types of exercises while considering individual baseline abilities. Tailoring rehabilitation to individual needs, establishing sport-specific rehabilitation programs and incorporating self-assessment tools can enhance patient-centered care and reduce reinjury risks. KW - Anterior cruciate ligament reconstruction (ACLR) KW - Return to Sport (RTS) KW - Back in Action (BIA) KW - Coordination KW - Neuromuscular adaption KW - Kinematics Y1 - 2025 U6 - https://doi.org/10.3390/jcm14176308 SN - 2077-0383 VL - 14 IS - 17 SP - 1 EP - 14 PB - MDPI CY - Basel ER - TY - GEN A1 - Kirschner, Jana A1 - Michel, Sven A1 - Becker, Roland A1 - Stiebitz, Olaf A1 - Hommel, Hagen A1 - Schulz, Robert A1 - Daszkiewicz, Maciej A1 - Krolikowska, Aleksandra A1 - Prill, Robert T1 - Determination of Relationships between Symmetry-Based, Performance-Based, and Functional Outcome Measures in Patients Undergoing Total Hip Arthroplasty T2 - Journal of Personalized Medicine N2 - Due to the high heterogeneity in outcome measures after total hip arthroplasty (THA), the prospective observational study investigated the relationships between symmetry-based (SBMs), performance-based (PBMs), and functional outcome measures in THA patients to determine necessary or redundant categories of tests. The study material consisted of 24 patients with end-stage hip osteoarthritis scheduled for THA. The patients were examined one day before surgery and consecutively on the 4th day, 9th day, and 10th week postoperatively using the SBMs (weight-bearing chair-rising test, measurements of the maximal isometric torque of the quadriceps muscle); the PBMs (10-m walk, timed up-and-go, and stair-climbing tests); and the functional outcome measure (Harris Hip Score). The results obtained in a given category of tests at different time points were compared, and the correlations between the tests were determined. The reliability of the outcome measures was determined. The results of tests in the studied categories statistically significantly (p < 0.05) improved at the 10th week postoperatively compared to preoperative results. No strong correlations were revealed between the three studied types of outcome measures in THA patients. Therefore, none of them can be considered redundant. It also means that the relevance of symmetry for a core measurement set to describe the domain function in THA patients must be further clarified. Y1 - 2023 U6 - https://doi.org/10.3390/jpm13071046 SN - 2075-4426 VL - 13 IS - 7 ER -