scholarly journals The Influence of Exercise-Induced Fatigue on Inter-Limb Asymmetries: a Systematic Review

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Jessica Heil ◽  
Florian Loffing ◽  
Dirk Büsch
Keyword(s):  
Systematic Review ◽  
Injury Risk ◽  
Cruciate Ligament ◽  
Physical Load ◽  
Future Research ◽  
Before And After ◽  
Isokinetic Strength Testing ◽  
Anterior Cruciate ◽  
Limb Asymmetry ◽  
Exercise Induced

Abstract Background Non-contact injuries such as anterior cruciate ligament ruptures often occur during physical load toward the end of a match. This is ascribed to emerging processes due to exercise-induced fatigue. Moreover, non-contact injuries often occur during dynamic actions such as landing or cutting movements. Inter-limb asymmetries are suggested as one possible cause for those injuries based on findings indicating that asymmetries between limbs are associated with a higher injury risk. Hence, assessing inter-limb asymmetry during physical load in the condition of exercise-induced fatigue is warranted to identify potentially relevant precursors for non-contact injuries. Objective The objective of this study was to overview the current state of evidence concerning the influence of exercise-induced fatigue on inter-limb asymmetries through a systematic review. Methods A systematic literature search was conducted using the databases Web of Science, Scopus, PubMed, SURF, and SPONET to identify studies that assessed inter-limb asymmetries of healthy people, calculated with an asymmetry equation, before and after, or during a loading protocol. Results Thirteen studies were included in the systematic review. The loading protocols involved running, race walking, jumping, squatting, soccer, rowing, and combinations of different exercises. Moreover, different tasks/procedures were used to assess inter-limb asymmetries, e.g., squats, single-leg countermovement jumps, gait analysis, or isokinetic strength testing. The results seem to depend on the implemented loading protocol, the tasks/procedures, and the measured parameters. Conclusions Future research needs more systematization and consistency, assessing the effect of exercise-induced fatigue on inter-limb asymmetries. Moreover, the emergence of inter-limb asymmetries should be regarded in the context of sport-specific movements/tasks. Testing before, after, and during a physical loading protocol is advisable to consider the influence of exercise-induced fatigue on sport-specific tasks and to identify the possible mechanisms underlying load-dependent inter-limb asymmetries with regard to risk of non-contact injury.

scholarly journals Can Technique Modification Training Reduce Knee Moments in a Landing Task?

2014 ◽  
Vol 30 (2) ◽  
pp. 231-236 ◽  
Author(s):  
Alasdair R. Dempsey ◽  
Bruce C. Elliott ◽  
Bridget J. Munro ◽  
Julie R. Steele ◽  
David G. Lloyd
Keyword(s):  
Internal Rotation ◽  
Injury Risk ◽  
Cruciate Ligament ◽  
Three Dimensional ◽  
Inverse Dynamic ◽  
Acl Injuries ◽  
Can Technique ◽  
Before And After ◽  
Reaction Forces ◽  
Anterior Cruciate

Anterior cruciate ligament (ACL) injuries are costly. Sidestep technique training reduces knee moments that load the ACL. This study examined whether landing technique training alters knee moments. Nineteen team sport athletes completed the study. Motion analysis and ground reaction forces were recorded before and after 6 weeks of technique modification. An inverse dynamic model was used to calculate three-dimensional knee loading. Pre- and postintervention scores were compared using pairedttests. Maximal knee flexion angle during landing was increased following training. There was no change in valgus or flexion moments, but an increase in peak internal rotation moment. This increase in internal rotation moment may increase the risk of ACL injury. However, the increased angle at which the peak internal rotation moment occurred at follow up may mitigate any increase in injury risk by reducing load transmission.

scholarly journals Stiff Landings, Core Stability, and Dynamic Knee Valgus: A Systematic Review on Documented Anterior Cruciate Ligament Ruptures in Male and Female Athletes

2021 ◽  
Vol 18 (7) ◽  
pp. 3826
Author(s):  
Joseph Larwa ◽  
Conrad Stoy ◽  
Ross S. Chafetz ◽  
Michael Boniello ◽  
Corinna Franklin
Keyword(s):  
Systematic Review ◽  
Anterior Cruciate Ligament ◽  
Injury Risk ◽  
Cruciate Ligament ◽  
Acl Injury ◽  
Core Stability ◽  
Knee Valgus ◽  
Acl Injuries ◽  
Male And Female ◽  
Anterior Cruciate

Anterior cruciate ligament (ACL) injuries are the most common ligament injury of the knee, accounting for between 100,000 and 200,000 injuries among athletes per year. ACL injuries occur via contact and non-contact mechanisms, with the former being more common in males and the later being more common in females. These injuries typically require surgical repair and have relatively high re-rupture rates, resulting in a significant psychological burden for these individuals and long rehabilitation times. Numerous studies have attempted to determine risk factors for ACL rupture, including hormonal, biomechanical, and sport- and gender-specific factors. However, the incidence of ACL injuries continues to rise. Therefore, we performed a systematic review analyzing both ACL injury video analysis studies and studies on athletes who were pre-screened with eventual ACL injury. We investigated biomechanical mechanisms contributing to ACL injury and considered male and female differences. Factors such as hip angle and strength, knee movement, trunk stability, and ankle motion were considered to give a comprehensive, joint by joint analysis of injury risk and possible roles of prevention. Our review demonstrated that poor core stability, landing with heel strike, weak hip abduction strength, and increased knee valgus may contribute to increased ACL injury risk in young athletes.

scholarly journals An Assessment of Rehabilitation Protocols following Anterior Cruciate Ligament Reconstruction: A Systematic Review

2016 ◽  
Vol 5 ◽  
pp. RPO.S40054
Author(s):  
Daniel Indorato ◽  
Ronda Sturgil
Keyword(s):  
Systematic Review ◽  
Anterior Cruciate Ligament ◽  
Anterior Cruciate Ligament Reconstruction ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Intervention Strategy ◽  
Future Research ◽  
Kinetic Chain ◽  
Cruciate Ligament Reconstruction ◽  
Anterior Cruciate

The present study provided a systematic review with meta-analysis of randomized controlled trials involving the effectiveness of various rehabilitation methods that have been implemented for the treatment of anterior cruciate ligament reconstruction (ACLR). The review of the literature revealed the following as evidence for effective ACLR rehabilitation: early intervention strategy focused on restoring range of motion, muscle strength, and ligament stability with the utilization of closed kinetic chain exercises. The literature supports the use of dynamic intraligamentary stabilization, which should also be implemented in the rehabilitation protocol within the first three months after surgery. The research suggests that the patient should undergo at least 30-90 minutes of cryotherapy immediately following ACLR surgery. There is also some evidence regarding the effectiveness of neuromuscular rehabilitation training programs, but further investigations are needed. Future research should consider the timing of rehabilitation as well as supplemental rehabilitation exercises to continue to improve the quality of care delivered to patients following ACLR.

scholarly journals Investigation of Knee Arthrokinematic Changes Before and After Reconstruction of Anterior Cruciate Ligament: A Systematic Review

2020 ◽  
Vol 6 (2) ◽  
pp. 66-85
Author(s):  
Ali Asghar Norasteh ◽  
◽  
Mostafa Payandeh ◽  
Zaher Mohammad Ashour ◽  
◽  
...  
Keyword(s):  
Systematic Review ◽  
Anterior Cruciate Ligament ◽  
External Rotation ◽  
Cruciate Ligament ◽  
Lateral Epicondyle ◽  
Complete Extension ◽  
Before And After ◽  
Healthy Knee ◽  
Anterior Cruciate ◽  
Injured Knee

Objective: The aim of this study was to investigation the arthrokinematic changes of the knee before and after the reconstruction of the anterior cruciate ligament and also to examine these changes after a period of rehabilitation exercises. Methods: In this systematic review study search was conducted in online databases of, Ebsco, Scopus, Web of Science, PEDro, Google scholar, PubMed, Science Direct, CINAHL, SPORTDiscus, EMBASE and MEDLINE from 1970 to 2020 . And keywords related to the topic were used to search for articles. Results: According to the search method, 127 articles were found that considering the inclusion criteria, 20 articles (20 English and 0 Persian) were selected. The results showed that the anterior glide in the injured knee increased significantly compared to the healthy knee. However, this arthrokinematic change was more observed in the medial epicondyle than in the lateral epicondyle. Also, among the articles, it is agreed that the highest arthrokinematic difference observed in injured persons compared to healthy individuals occurred between 15 degrees of flexion and complete extension of the knee. And Finally, the findings showed that the arthrokinematics of the knee after reconstruction, were more similar with before the reconstruction it up to a healthy knee. And also the arthrokinematic movements of the reconstructed ligament, even after a rehabilitation period, were more similar to the un reconstructed knee than to the healthy knee. Conclusion: According to the results of previous articles and being more obvious change of anterior glide, medial glide and to some extent external rotation in persons with anterior cruciate ligament rupture as well as no difference arthrokinematic knee before and after reconstruction of the anterior cruciate ligament, it seems important that rehabilitation programs and anterior cruciate ligament reconstruction techniques be planned in order to correct or prevent arthrokinematic changes are mentioned.

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