Dynamic Trunk Control Influence on Run-to-Cut Maneuver: A Risk Factor for ACL Rupture

Jamison, Steve T.; Pan, Xueliang; Chaudhari, Ajit M.W.

doi:10.1115/sbc2011-53697

ASME 2011 Summer Bioengineering Conference, Parts a and B 2011

DOI: 10.1115/sbc2011-53697

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Dynamic Trunk Control Influence on Run-to-Cut Maneuver: A Risk Factor for ACL Rupture

Steve T. Jamison

Xueliang Pan

Ajit M.W. Chaudhari

Abstract: Anterior Cruciate Ligament (ACL) rupture is one of the most common serious knee injuries in field and court sports, with an estimated 70% of these injuries being non-contact in nature, often from sudden changes in direction or pivoting [3]. ACL injury results in both short- and long-term consequences for the athlete, which may include surgery, decreased activity levels, elevated pain levels during activities and increased risk of osteoarthritis. Previous studies have shown that knee abduction and tibial intern… Show more

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Cited by 2 publications

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Analyses of actions which cause anterior cruciate ligament injuries in the national basketball association players: YouTube-based video analyses

Saito,

Matsumura,

Kawamoto

et al. 2023

BMC Sports Sci Med Rehabil

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Background Anterior cruciate ligament (ACL) injuries are among the most common injuries in the National Basketball Association (NBA), and it is important to investigate the actual nature of the injury because it can impair a player’s performance after returning to the game. Although the moment of injury has been investigated, the details of the movements and circumstances leading to injury in basketball games are unknown. This study aimed to clarify the actions leading to ACL injuries and to investigate their characteristics, based on YouTube video analyses of the NBA players. Methods Players with ACL injuries in the NBA were identified through web-based research over 10 seasons (2011/2012–2021/2022, through October 2021), with 29 recorded videos of ACL injuries in the NBA. Actions were categorized based on basketball-specific gestures, and determined whether the player was in contact with an opponent or not and, if so, the location of the contact was analyzed focusing on two time points: at the injury frame (IF) and one step before the injury frame (IF-1). The “injury leg” timing was counted for each of the first and second steps after ball possession. Results The majority (68.2%) of ACL injury occurred during the 2 steps phase (only two steps can proceed after ball retention in basketball, so we defined them as two steps) in the offense action, and most notably during the first step (80.0%). 73.3% of players who were injured during the 2 steps phase got contact to an area other than the knee (Indirect contact) at the IF-1, with 81.8% of contact being located in the upper body contralateral to the respective knee injury. The probability of players with ACL injuries during the 2 steps at the IF-1 who got Indirect contact was statistically significantly greater than those who got no contact with other players (p = 0.042). Conclusions We argue that including pre-injury play and contact falls into the novelty category. Through YouTube-based video analyses, this study revealed that ACL injuries tend to be characterized by specific types of actions, the timing of contact, and the location of contact in NBA players.

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Analyses of actions which cause anterior cruciate ligament injuries in the national basketball association players: YouTube-based video analyses

Saito,

Matsumura,

Kawamoto

et al. 2023

BMC Sports Sci Med Rehabil

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show abstract

Core Stability: Implications for Dance Injuries

Rickman

Ambegaonkar²,

Cortés³

2012

Medical Problems of Performing Artists

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Dancers experience a high incidence of injury due to the extreme physical demands of dancing. The majority of dance injuries are chronic in nature and occur in the lower extremities and low back. Researchers have indicated decreased core stability (CS) as a risk factor for these injuries. Although decreased CS is suggested to negatively affect lower extremity joint motion and lumbar control during activity, this relationship has not been extensively discussed in previous dance literature. Understanding the relationship between CS and injury risk is important to help reduce dance injury incidence and improve performance. The purposes of this review were to discuss 1) the core and components of CS, 2) the relationship between CS and injury, 3) CS assessment techniques, and 4) future dance CS research areas. CS is the integration of passive (non-contractile), active (contractile), and neural structures to minimize the effects of external forces and maintain stability. CS is maintained by a combination of muscle power, strength, endurance, and sensory-motor control of the lumbopelvic-hip complex. CS assessments include measuring muscle strength and power using maximal voluntary isometric and isokinetic contractions and measuring endurance using the Biering-Sorensen, plank, and lateral plank tests. Measuring sensory-motor control requires specialized equipment (e.g., balance platforms). Overall, limited research has comprehensively examined all components of CS together and their relationships to injury. Rather, previous researchers have separately examined core power, strength, endurance, or sensory-motor control. Future researchers should explore the multifactorial role of CS in reducing injury risk and enhancing performance in dancers.

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Dynamic Trunk Control Influence on Run-to-Cut Maneuver: A Risk Factor for ACL Rupture

Cited by 2 publications

References 15 publications

Analyses of actions which cause anterior cruciate ligament injuries in the national basketball association players: YouTube-based video analyses

Analyses of actions which cause anterior cruciate ligament injuries in the national basketball association players: YouTube-based video analyses

Core Stability: Implications for Dance Injuries

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