Article
Orthopedics
Alexander T. Peebles, Thomas K. Miller, Robin M. Queen
Summary: This study compared landing kinematics and kinetics between ACLR patients and uninjured controls in a non-laboratory setting. ACLR patients showed larger asymmetry in plantar force impulse during bilateral landing and knee flexion range of motion during unilateral landing. This research is a significant step towards assessing landing biomechanics in non-research settings for clinical use in making return to sport decisions.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2022)
Article
Sport Sciences
Rebecca Straker, Timothy A. Exell, Roman Farana, Joseph Hamill, Gareth Irwin
Summary: This study found differences in lower extremity biomechanics between male and female gymnasts when performing different landing strategies. There were significant group and individual variations in key injury risk variables, indicating the importance of individualized landing strategies to accommodate different information constraints.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2022)
Article
Sport Sciences
Shelby Baez, Katherine Collins, Matthew Harkey, Thomas Birchmeier, Ashley Triplett, Brian Pietrosimone, Christopher Kuenze
Summary: This study investigated the associations between kinesiophobia, knee abduction angle (KAA), and knee flexion excursion (KFE) in individuals 5-12 months post-ACLR. It was found that higher levels of kinesiophobia were related to greater peak KAA during landing, and modifying kinesiophobia may help reduce the risk of secondary ACL injury.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2023)
Article
Multidisciplinary Sciences
Hadi Akbari, Yohei Shimokochi, Bahram Sheikhi
Summary: This study found a significant correlation between ankle dorsiflexion range of motion (DF-ROM) and landing errors, indicating that ankle DF-ROM can be used as a valuable measure to assess landing posture. This could help identify the cause of faulty motion in real-world sport-specific tasks.
Article
Sport Sciences
Dieter Heinrich, Antonie J. van den Bogert, Werner Nachbauer
Summary: The present study investigates neuromuscular control patterns to avoid ACL injury during injury-prone jump-landing in downhill ski racing. The study uses a computational approach to generate injury-prone jump-landing simulations and identifies optimized muscle activation patterns and kinematic changes that reduce peak ACL force. The findings suggest that increasing activation of specific muscles and adopting a flexed landing position can help reduce ACL injury risk.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2023)
Article
Rehabilitation
Alexander T. Peebles, Sara L. Arena, Robin M. Queen
Summary: This study compared the effectiveness of different analysis methods for measuring knee kinematics during landing, and validated the consistency of these methods in laboratory and non-laboratory settings. The results showed that these methods are inexpensive, reliable, and feasible for use in non-laboratory settings.
PHYSICAL THERAPY IN SPORT
(2021)
Article
Orthopedics
Matthew Buckthorpe, Davide Pisoni, Filippo Tosarelli, Furio Danelon, Alberto Grassi, Francesco Della Villa
Summary: This study describes the mechanisms, situational patterns, and biomechanics of MCL injuries in professional male soccer players. Direct contact was the most common cause of MCL injuries, followed by indirect contact and noncontact injuries. Three main sprain mechanisms were identified: blow to the knee, contact to the leg or foot (lever like), and sliding.
JOURNAL OF ORTHOPAEDIC & SPORTS PHYSICAL THERAPY
(2021)
Article
Environmental Sciences
Akihiro Tamura, Kiyokazu Akasaka, Takahiro Otsudo
Summary: This study investigated the contribution of lower extremity joints during soft landing, finding that negative mechanical work in the hip and knee joints is effective in achieving soft landing. Therefore, when improving soft landing techniques, energy absorption in the hip and knee through eccentric activation of the hip and knee extensors during landing should be considered.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Chemistry, Analytical
Abdel-Rahman Akl, Pedro Goncalves, Pedro Fonseca, Amr Hassan, Joao Paulo Vilas-Boas, Filipe Conceicao
Summary: The study aimed to investigate the changes in co-activation around the knee joint during different walking speeds in healthy females. The results showed a significant decrease in thigh muscle co-activation with increasing walking speed in healthy females, indicating high variability in co-activation patterns across different speeds.
Article
Orthopedics
Jacob Zeitlin, Mark A. A. Fontana, Michael K. K. Parides, Danyal H. H. Nawabi, Thomas L. L. Wickiewicz, Andrew D. D. Pearle, Bruce D. D. Beynnon, Carl W. W. Imhauser
Summary: Limited data exist regarding the association of tibiofemoral bony and soft tissue geometry and knee laxity with risk of first-time noncontact anterior cruciate ligament (ACL) rupture. Researchers found that tibiofemoral geometry and anteroposterior (AP) knee laxity were associated with the risk of first-time noncontact ACL injury in high school and collegiate athletes, with different factors being important for males and females. Increased AP laxity in males and increased lateral meniscus-bone wedge angle in females were associated with higher risk of noncontact ACL injury.
ORTHOPAEDIC JOURNAL OF SPORTS MEDICINE
(2023)
Article
Chemistry, Multidisciplinary
Sebastien Garcia, Nicolas Delattre, Eric Berton, Guillaume Rao
Summary: This study aimed to compare patellar tendon forces between landings preceded by a vertical jump and a forward jump in volleyball players, as well as compare two different estimation methods. The results showed that forward jump-landing generated higher patellar tendon forces, and the inverse kinematic method provided higher values compared to the static optimization method.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Biomedical
Marc F. Norcross, Roy Almog, Yu-Lun Huang, Eunwook Chang, Kimberly S. Hannigan, Samuel T. Johnson
Summary: This study found that explosive quadriceps strength and landing tasks have different effects on knee biomechanics, with the high RTD group demonstrating greater knee flexion at initial contact during landing. Greater quadriceps RTD was associated with greater knee flexion at initial contact during single-leg jump-cuts.
SPORTS BIOMECHANICS
(2021)
Article
Rehabilitation
Cedric De Blaiser, Philip Roosen, Stefan Vermeulen, Camilla De Bleecker, Roel De Ridder
Summary: A clinical tool for evaluating unilateral landing quality in a healthy population was developed, and its reliability was assessed along with the influence of gender and leg-dominance. The novel Unilateral Landing Error Scoring System (ULESS) was created based on observable landing errors. The ULESS demonstrated moderate to excellent reliability, effectively identifying unilateral landing deficiencies, and showed no significant effects of gender or leg-dominance on the scores.
PHYSICAL THERAPY IN SPORT
(2022)
Article
Biotechnology & Applied Microbiology
Liang Chen, Ziang Jiang, Chen Yang, Rongshan Cheng, Size Zheng, Jingguang Qian
Summary: The study found that different landing actions have impact on muscle forces and knee joint angles, but not significantly on ACL forces. Factors like knee flexion angle and quadriceps and gastrocnemius forces are critical for ACL injury.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Review
Orthopedics
Brian H. H. Tuang, Zheng Qin Ng, Joshua Z. Li, Dinesh Sirisena
Summary: This systematic review analyzes the biomechanical effects of prophylactic knee braces (PKBs) in the prevention of anterior cruciate ligament (ACL) injuries. The results show that PKBs can have protective effects on knee kinematics in the coronal and transverse planes, as well as reduce ACL load/strain. However, the effects in the sagittal plane are inconclusive. More prospective studies are needed to evaluate ACL injury risk in high-risk sports using specific PKBs.
CLINICAL JOURNAL OF SPORT MEDICINE
(2023)