@misc{JahnkeCruysenPrilletal., author = {Jahnke, Sonja and Cruysen, Caren and Prill, Robert and Kittmann, Fabian and Pflug, Nicola and Albert, Justin Amadeus and Camargo, Tibor de and Arnrich, Bert and Krolikowska, Aleksandra and Kolcz, Anna and Reichert, Pawel and Oleksy, Lukasz and Michel, Sven and Kopf, Sebastian and Wagner, Michael and Scheffler, Sven and Becker, Roland}, title = {Protocol for a Randomized Crossover Trial to Evaluate the Effect of Soft Brace and Rigid Orthosis on Performance and Readiness to Return to Sport Six Months Post‑ACL‑Reconstruction}, series = {Healthcare}, volume = {11}, journal = {Healthcare}, number = {4}, issn = {2227-9032}, doi = {10.3390/healthcare11040513}, abstract = {A randomized crossover trial was designed to investigate the influence of muscle activation and strength on functional stability/control of the knee joint, to determine whether bilateral imbalances still occur six months after successful anterior cruciate ligament reconstruction (ACLR), and to analyze whether the use of orthotic devices changes the activity onset of these muscles. Furthermore, conclusions on the feedforward and feedback mechanisms are highlighted. Therefore, twenty‑eight patients will take part in a modified Back in Action (BIA) test battery at an average of six months after a primary unilateral ACLR, which used an autologous ipsilateral semitendinosus tendon graft. This includes double‑leg and single‑leg stability tests, double‑leg and single‑leg countermovement jumps, double‑leg and single‑leg drop jumps, a speedy jump test, and a quick feet test. During the tests, gluteus medius and semitendinosus muscle activity are analyzed using surface electromyography (sEMG). Motion analysis is conducted using Microsoft Azure DK and 3D force plates. The tests are performed while wearing knee rigid orthosis, soft brace, and with no aid, in random order. Additionally, the range of hip and knee motion and hip abductor muscle strength under isometric conditions are measured. Furthermore, patient‑rated outcomes will be assessed.}, language = {en} } @misc{KirschnerMichelBeckeretal., author = {Kirschner, Jana and Michel, Sven and Becker, Roland and Stiebitz, Olaf and Hommel, Hagen and Schulz, Robert and Daszkiewicz, Maciej and Krolikowska, Aleksandra and Prill, Robert}, title = {Determination of Relationships between Symmetry-Based, Performance-Based, and Functional Outcome Measures in Patients Undergoing Total Hip Arthroplasty}, series = {Journal of Personalized Medicine}, volume = {13}, journal = {Journal of Personalized Medicine}, number = {7}, issn = {2075-4426}, doi = {10.3390/jpm13071046}, abstract = {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.}, language = {en} } @misc{PrillKrolikowskaSchulzetal., author = {Prill, Robert and Krolikowska, Aleksandra and Schulz, Robert and Oleksy, Lukasz and Michel, Sven and Becker, Roland}, title = {Verletzungen im Judo - Risikosportart oder Risikosportler?}, series = {Sports Orthopaedics and Traumatology}, volume = {2}, journal = {Sports Orthopaedics and Traumatology}, number = {39}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0949-328X}, doi = {10.1016/j.orthtr.2023.03.008}, pages = {185}, language = {de} } @misc{JahnkePrillKrolikowskaetal., author = {Jahnke, Sonja and Prill, Robert and Kr{\´o}likowska, Aleksandra and Oleksy, Łukasz and Cruysen, Caren and Daszkiewicz, Maciej and Kowal, Mateusz and Kentel, Monika and Kentel, Maciej and Michel, Sven and Reichert, Paweł and Becker, Roland}, title = {Test learning effects influence coordinative but not strength-related tasks in patients six months after anterior cruciate ligament reconstruction}, series = {Journal of clinical medicine}, volume = {14}, journal = {Journal of clinical medicine}, number = {17}, publisher = {MDPI}, address = {Basel}, issn = {2077-0383}, doi = {10.3390/jcm14176308}, pages = {1 -- 14}, abstract = {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.}, language = {en} }