Lower Extremity Injuries Research Articles

The MangLE score: A novel simple tool to identify patients who are unlikely to require amputation following severe lower extremity injury.

There are no validated and sensitive models that can guide the decision regarding amputation in patients with mangled lower extremities. We sought to describe a simple scoring model, the Mangled Lower Extremity (MangLE) score, which can predict those who are highly unlikely to need an amputation as a means to direct resources to this cohort. This is a retrospective study using the 2013-2021 American College of Surgeons Trauma Quality Improvement Program data set. Adult patients with a mangled lower extremity, defined as a crush injury or a fracture of the femur or tibia combined with severe soft tissue injury, arterial injury, or nerve injury, were included. Patients who suffered a traumatic lower extremity amputation, underwent amputation within 24 hours of admission, or who died within 24 hours of admission were excluded. Patients were divided into those who did/did not undergo amputation during their hospital stay. Demographics, injury mechanism, Injury Severity Score, and Abbreviated Injury Scale score, initial vital signs, and comorbid conditions were abstracted. A logistic regression model was constructed and the top five most important variables were used to create the score. The study includes 107,620 patients, of whom 2,711 (2.5%) underwent amputation. The five variables with the highest predictive value for amputation were arterial injury, lower-extremity Abbreviated Injury Scale score of ≥3, crush injury, blunt mechanism, and shock index. The lowest possible MangLE score was 0, and the highest was 15. The model demonstrated an excellent predictive ability for lower extremity amputation in both the development and validation data set with an area under the receiver operating characteristic curve of 0.81 (95% confidence interval, 0.80-0.82) and 0.82 (95% confidence interval, 0.81-0.84), respectively. The negative predictive value for a score of <8 is 99%. The MangLE score is able to identify patients who are unlikely to require amputation. Resources for limb salvage can be directed to this cohort. Prospective and Epidemiologic; Level IV.

The Major League Baseball Pitch Clock: one year position player injury analysis

ABSTRACT Background In 2023, Major League Baseball (MLB)implemented the pitch clock. The effects of the pitch clock on player injuryrates is largely unknown, and some, including the major league baseball playersassociation, have suggested that pitchers may be at an increased risk of injurywith its implementation. Position players have received little attention inthese discussions, even though they may be at the same theorized risk ofinjuries. The aim of this study is to determine if implementation of the 2023MLB pitch clock influenced the incidence of injuries in position players. It ishypothesized that implementation of the MLB pitch clock will lead to a rise ininjuries due to a reduction of time for the primary biological energy systemused by baseball to restore to normal levels. Methods Injury data was collected from thefangraphs.com injury database, the most comprehensive MLB data and statisticaldatabase website, for the 2021, 2022, and 2023 MLB seasons. The incidence rateratio was calculated and used to compare the injury rate for the 2023 season tothe 2021 and 2022 seasons for both major anatomical categories and anatomicalsubcategories. A z-test for proportions was used to determine significance. Results Incidence rate ratio comparison of the2023 MLB pitch clock season versus the 2021 MLB season showed a decrease in thetotal incidence of injuries (p < .001), lower extremity injuries (p < .001),and hamstring injuries (p = .032). Incidence rate ratio comparison of the 2023MLB pitch clock season versus the 2022 MLB season showed a decrease in thetotal incidence of injuries (p = .010), undisclosed injuries (p < .001), andknee injuries (p = .035). Conclusions Following the implementation of thepitch clock during the 2023 MLB season, the total number of injuries andseveral lower extremity injury categories decreased. Due to a decrease in theoverall time spent on the field in a single game and over a season, it could behypothesized that the pitch clock decreased the workload for position players,leading to this drop in injuries. Further longitudinal investigation must bedone to investigate if this influence of the MLB pitch clock persists overtime.

Initial surgical management of injuries to the lower extremities in patients with multiple and/or severe injuries - A systematic review and clinical practice guideline update.

Our aim was to develop new evidence-based and consensus-based recommendations for the initial inhospital management of lower-extremity injuries in patients with multiple and/or severe trauma. This guideline topic is part of the 2022 update of the German Guideline on the Treatment of Patients with multiple and/or severe Injuries. MEDLINE and Embase were systematically searched to May 2021. Randomised controlled trials, prospective cohort studies, and comparative registry studies were included if they compared interventions for the initial surgical and non-surgical management of fractures, dislocations or vascular injuries of the lower extremities in patients with multiple and/or severe trauma. We considered patient-relevant clinical outcomes such as mortality, complication rates, length of stay, and function. Risk of bias was assessed using NICE 2012 checklists. The evidence was synthesised narratively, and expert consensus was used to develop recommendations and determine their strength. Eleven studies were identified. They addressed time to definitive fixation (n = 10 studies) and amputation (n = 1). Two new recommendations were developed, one was modified. All recommendations achieved strong consensus. This systematic literature review and subsequent expert consensus process resulted in the following new key recommendations. It is recommended that isolated and multiple lower-extremity fractures are managed with primary definitive fixation in patients whose condition is stable. Patients condition is not considered stable should be managed with primary temporary fixation. In addition, it is recommended that dislocations of the lower extremities are reduced and immobilised as early as possible.

Evaluating the Importance of Return to Sports and Hamstring Strength in a Discrete Choice Experiment for Anterior Cruciate Ligament Injury.

With emerging treatments for anterior cruciate ligament (ACL) injury, analysis of patient preferences is lacking to align clinical care and research with patient priorities. To identify patient priorities for outcomes after surgical intervention if they were to sustain an ACL tear, analyze what outcome measures influenced preferences, and determine whether patient demographics influenced preferences. Cross-sectional study. The authors screened patients aged 18 to 30 years who presented for upper extremity complaints to a single institution in 2023. Patients were excluded for current lower extremity injury or history of a knee injury requiring surgical consultation. The authors designed a discrete choice experiment through literature review of outcome measures for bridge-enhanced ACL restoration (BEAR) and ACL reconstruction (ACLR) with hamstring tendon autograft. Measures included return to sports, risk of arthritis, risk of reinjury, and hamstring strength. Patients chose surgery A (ACLR with hamstring tendon autograft) or surgery B (BEAR) and then rated the importance of each outcome measure on their selection. In total, 100 participants (36 female; mean age, 25.1 ± 4.0 years) completed the discrete choice experiment. Overall, 56.0% participated in sports and 80.0% were employed. Based on surgery choice group, there were no significant differences in sex, age, Marx Activity Scale score, sports participation, or employment status between patients who selected BEAR or ACLR with hamstring tendon autograft (all P > .361). Return to sports and hamstring strength were significant priorities for patients in procedure selection (P ≤ .011). Of the patients who selected ACLR with hamstring tendon autograft, 31.6% would not elect to undergo this procedure. In this discrete choice experiment of adults without prior ACL injury, return to sports and hamstring strength were identified as patient priorities when selecting a procedure for ACL injury. Risk of reinjury, however, was not a significant factor in procedure selection. Importantly, these priorities were maintained regardless of patient characteristics, activity level, or employment status.

Insights from a hospital database: injuries among children under 6 years old due to falls

Abstract Background Pediatric injuries represent a significant public health concern globally, contributing to substantial morbidity and mortality among children. In Georgia, limited data exists regarding pediatric injuries. The aim of the study was to analyze epidemiological characteristics and trends of pediatric injuries among children aged under 6 years who received treatment in hospitals across whole country. Methods NCDC hospitalization database for 2015-2022 was used for the study. Results Over the study period, a total of 5979 children under the age of 6 received treatment in all hospitals across Georgia. The highest number of hospital admissions were registered in 2019. 60% were boys and 40% were girls of the hospitalized patients. Boys were predominant across all age groups, with the highest proportion among children aged 5 years old. There was a significant variation in hospital admissions according to the seasons, with the highest admissions occurrence in summer. As for the cause of admission, 37% resulted from falls on the same level, 10% from falls between different levels, 7% involved falling from a bed, 4% from falling out or through a building, and 4% from falling down stairs. The cause of falls was unspecified in 23%. In 72% of cases, the injured body part was the head, 17% were upper extremity injuries, and 7% were lower extremity injuries. Of the patients, 90% recovered, 2% discontinued treatment, 8% were transferred, and the outcome was fatal for 0.23% of patients. Among the fatal cases, 36% resulted from falls from, out of, or through a building, 29% from falls between different levels, 14% from falling or jumping, 7% from falls involving a bed, and 7% from falls on the same level. Conclusions These findings underscore the importance of preventive measures, especially regarding fall prevention, to reduce the incidence of pediatric injuries in Georgia. Key messages • There was a significant variation in hospital admissions according to the seasons, with the highest admissions occurrence in summer. • These findings underscore the importance of preventive measures, especially regarding fall prevention, to reduce the incidence of pediatric injuries in Georgia.

Track and field-related lower-extremity musculoskeletal injuries: A retrospective study discussing injury analysis, stressors, and comprehensive management

Objective This study aims to provide beneficial information, from a clinical perspective, on how healthcare providers and sports educators can navigate treatment and safety for TAF athletes. This was done by identifying trends seen in lower-extremity TAF injuries and providing potential treatments to counter specific injuries, closing gaps in current literature. Methods The National Electronic Injury Surveillance System (NEISS) database was queried during a ten-year time span (2014-2023) to analyze lower-extremity track and field-related musculoskeletal injuries. Results There were 128,761 cases reported in the Emergency Department from 2014-2023. Fifty eight percent occurred in females compared to only 42% in males, making females 1.4 times more likely to experience injury. Most injuries took place in 2017. Most cases in adolescents were aged 15 and 14 years old. The 10-19 age group had disproportionately more cases. 1,067 reported cases of strain/sprains were associated with female patients with 733 cases present in males. Strain/sprains ranked the highest, followed by fractures, excluding other/not stated cases. The ankle was the body part with the most cases, followed by injury to the knee. Conclusions As a widely popular sport, future studies should look at providing a more comprehensive characterization into how a patient’s specific demographics may play into injury detection and prevention.

The FIFA 11+ injury prevention program reduces the incidence of lower extremity injuries in football players: a systematic review and meta-analysis.

The FIFA 11+ preventive program is designed to reduce the incidence of injury in sports. However, to gain a better understanding of its effect a systematic review and meta-analysis is needed. The current review aims to investigate the effect of the FIFA 11+ preventive program on injury incidence among male and female football players. This study used Scopus, PEDro, SPORTDiscus, and ProQuest as data sources. The initial selection of the studies, thorough assessment of the tile, and abstract. Extraction of the necessary study data was conducted by two independent researchers. Another two independent researchers assessed the quality of each included study against 39 used criteria. These criteria were combined from several popular quality assessment scales. The incidence of injuries measured in the lower extremities in football players after addressing the FIFA11+ was the outcome of interest. This review included 12 trials of variable methodological quality from which 10 trials were selected for the meta-analysis. In general, the FIFA11+ program showed a significant reduction (P<0.1) in lower limb injury incidence for male young and adults in comparison to other programs. However, evidence of its effectiveness in females is lacking and more studies are needed. The FIFA 11+ program is recommended to be used and implemented as a preventive strategy in males. Although, the result showed a significant reduction in injury incidence in adult males, heterogeneity between studies is high which may reduce the generalizability of the results. More studies are needed to investigate the effect of the FIFA 11+ program on females.

VTE rates and risk factors in major trauma patients

BackgroundVenous thromboembolism (VTE) is a common and in some instances life-threatening complication following severe traumatic injury. Owing to a lack of high-quality evidence in VTE risk prediction and prevention in this cohort, major trauma patients receive variable VTE preventative care. The aim of this systematic review was to determine the reported rates of VTE in major trauma patients, and associated risk factors. MethodsA comprehensive database search was conducted using EBSCO/MEDLINE, EMBASE, CINAHL, Cochrane and Scopus to identify studies published between 1990 and 2023. Original Studies quantifying the occurrence of and/or evaluating risk factors for VTE, PE and DVT in a defined population were eligible for inclusion. Five reviewers screened, appraised, and extracted data from the selected studies. ResultsA total of 22 studies fulfilled the inclusion criteria. Most studies were conducted in Northern America (72%), followed by Asia (18%), and Europe (9%). Of the 22 studies, 17 were retrospective, 4 were prospective and 1 was the control arm of an RCT. The reported rates in included studies ranged from 0.39% to 32% (VTE), 0.59% to 57.60% (DVT) and 0.35% to 24.0% (PE). Operative procedure was the most consistently reported associated variable for DVT followed by delays to prophylaxis and pelvic injury. Lower extremity injury was the most frequently reported associated variable for PE followed by male sex and increased age. Age was the most frequently reported variable for both DVT and PE. ConclusionThere exists significant variation in the reported rates of VTE in major trauma patients globally. Operative procedure, delays to prophylaxis and pelvic injury were the most consistently reported associated variables for DVT. Lower extremity injury followed by male sex and increased age were the most frequently reported associated variables for PE. Although studies indicate possible differences in risk factors for DVT and PE, heterogeneity in study characteristics and outcome reporting impedes any meaningful conclusions. Reconciliation of VTE rates in major trauma patients is necessary when comparing populations.

Psychosocial Factors Associated With Lower Extremity Reinjury Risk in Soccer Players: Contribution of Self-Confidence and Reinjury Anxiety.

Despite the availability of specialized assessment tools, psychological readiness is usually not considered when deciding to return to sport (RTS) after sport injury. Reinjury anxiety, self-confidence, and functional attention may be associated with sport reinjury, making it important to evaluate these factors before RTS. To predict lower extremity reinjury in soccer players using self-confidence, functional attention, and reinjury anxiety as predictive variables. Prospective cohort study. Laboratory. Sixty-two male soccer players, who were older than 18 years of age, suffered from lower extremity injuries, had completed the rehabilitation program, and were ready to RTS. Before returning to the sport, participants completed a preseason questionnaire on their previous injuries, self-confidence, reinjury anxiety, and level of functional attention. The primary outcome measured was the risk of reinjury during the upcoming competitive season, and logistic regression was used to calculate odds ratios (ORs) with 95% confidence intervals (CIs) to determine the association between each risk factor and reinjury. The overall reinjury rate was 5.56 injuries per 1000 hours of play. Self-confidence scores of ≤47 increased the risk of reinjury by 2.26 times (relative risk = 2.26; 95% CI, 1.31-3.91; OR = 5.00; 95% CI, 1.56-16.04), and each unit increase in self-confidence score reduced the risk of reinjury by 10% (OR = 0.90; CI, 0.82-0.99; P = .03). Regarding reinjury anxiety, a score of >22 was associated with 2.43 times the risk of reinjury (relative risk = 2.43; 95% CI, 1.44-4.13; OR = 6.46; 95% CI, 1.93-21.69), and each unit increase in reinjury anxiety score increased the risk of injury by 45% (OR = 1.45; CI, 1.13-0.87; P = .004). Increased reinjury anxiety and decreased self-confidence are associated with higher odds of lower extremity reinjury in male soccer players. To reduce the risk of reinjury, athletic trainers and sport psychologists should take these psychological factors into account when evaluating the psychological readiness of soccer players with a history of lower extremity injury to RTS.

Correlation of Pre-Season Musculoskeletal Functional Tests with Lower Extremities Injuries in Elite Female Ballet Dancers (MOLED study): a study protocol for a prospective longitudinal study

Correlation of Pre-Season Musculoskeletal Functional Tests with Lower Extremities Injuries in Elite Female Ballet Dancers (MOLED study): a study protocol for a prospective longitudinal study

A systematic review and network meta-analysis on the effectiveness of exercise-based interventions for reducing the injury incidence in youth team-sport players. Part 1: an analysis by classical training components

Objectives The primary purposes were (a) to estimate the pooled effects of injury prevention programs (IPPs) on reducing overall and some specific body regions (lower extremity, thigh, knee, and ankle) injury incidence rates (IIRs) and (b) to compare the effects of single- and multi-component IPPs on mitigating injury risk in youth team sport athletes. A secondary objective was to explore the individual effects of different components on these IIRs. Materials and methods Searches were performed up to 15 January 2024 in PubMed, Web of Science, SPORTDiscus, and Cochrane Library. Eligible criteria were: exercise-based interventions evaluated against a control group, overall IIRs were reported, and youth (≤19 years old) team sport players. Two reviewers extracted data and assessed trial quality using the Consolidated Standards of Reporting Trials (CONSORT) statement, the Physiotherapy Evidence Database Scale (PEDro), and a risk of bias tool (Cochrane Back and Neck Group). Pooled effects were calculated by Frequentist random effects pairwise and network meta-analyses. Results Twenty-one studies were included. IPPs reduced overall, lower extremities, thigh, knee, and ankle IIRs by an average of approximately 35%. Most of the IPPs demonstrated statistically significant risk mitigation effects for overall and lower extremity injuries compared to control group. Interventions comprised exclusively of strength ([IRR = 0.3 [95%CI = 0.10–0.93]) and flexibility (IRR = 0.49 [95%CI = 0.36–0.68]), as well as those including stability exercises, were the most effective measures for reducing injuries in youth team sports. Conclusions The implementation of current IPPs in training sessions for several weeks has shown to be an effective strategy for reducing the risk of injury in youth team sport athletes by one-third. Indirect evidence suggests that strength, flexibility, and stability might be exercise components with the highest risk mitigation effects; however, more research is crucial to confirm our estimates with direct evidence.

A Lower Extremity Injury That Occurred While Playing Flag Football

A Lower Extremity Injury That Occurred While Playing Flag Football

Compensatory Strategies Persist In Special Operations Forces Personnel With A Previous Lower Extremity Injury

Compensatory Strategies Persist In Special Operations Forces Personnel With A Previous Lower Extremity Injury

Does A History Of Lower Extremity Injury Impact Female Athlete Jump Landing Performance Metrics?

Does A History Of Lower Extremity Injury Impact Female Athlete Jump Landing Performance Metrics?

Low back pain or injury before collegiate athletics, a potential risk factor for non-contact athletic injuries.

Majority of research surrounding the predictive value of clinical measurements and assessments for future athletic injury does not differentiate between contact and non-contact injuries. We assessed the association between clinical measures and questionnaire data collected prior to sport participation and the incidence of non-contact lower extremity (LE) injuries among Division III collegiate athletes. Prospective cohort study. University setting, NCAA Division III. 488 Division III freshmen athletes were recruited to participate in the study during their preseason physical examinations. 10,983 public schools. Prospective incidence of non-contact Lower extremity Injury. Athletes completed questionnaires to collect demographics and musculoskeletal pain history. Clinical tests, performed by trained examiners, included hip provocative tests, visual appraisal of a single leg squat to identify dynamic knee valgus, and hip range of motion (ROM). Injury surveillance for each athlete's collegiate career was performed. The athletic training department documented each athlete-reported, new onset injury and documented the injury location, type, and outcome (days lost, surgery performed). Univariable Generalized Estimating Equations (GEE) models were used to analyze the relationship between each clinical measure and the first occurrence of non-contact LE injury. An exchangeable correlation structure was used to account for repeated measurements within athletes (right and left limbs). Of the 488 athletes, 369 athletes (75%) were included in the final analysis. 69 non-contact LE injuries were reported. Responding "Yes" to "Have you ever had pain or an injury to your low back" was associated with an increased risk of non-contact LE, odds ratio = 1.59 (95%CI 1.03- 2.45, p=.04). No other clinical measures were associated with increased injury risk. A history of prior low back pain or injury was associated with an increased risk of sustaining a non-contact LE injury while participating in NCAA Division III athletics.

Lower extremity injury and return to sports of elite taekwondo athletes

Abstract Objective We attempted to analyze the characteristics of lower-extremity injuries that occur during training based on the sex and weight class of elite taekwondo (TKD) athletes and the effect of pain scores on the return to sports periods (RTSP). Methods and Methods: We included 198 elite TKD athletes who participated in January–December 2023 and were trained in Korea. Injury incidence rates (IIR) were expressed as Poisson rates with 95% confidence intervals per 1,000 h of training. One-way analysis of variance was conducted to determine the pain score and RTSP according to sex, weight, and injury type. In addition, we performed simple linear regression to determine the effects of pain score on the RTSP. Results The lower-extremities IIR was 2.45 injuries per 1000 training hours, including 0.77 contact and 1.68 non-contact injuries. The IIR was lower in male than in female athletes (p&lt;0.001), the most common injuries occurred in the ankle (0.78) and knee(0.53). In addition, the ligament (0.99) and muscle (0.70) were the most common injury types. All athletes demonstrated significant differences in pain scores (p&lt;0.001) and RTSP (p&lt;0.001) based on the injury type. In addition, we observed a significant difference between the pain score (p&lt;0.001) and RTSP (p=0.004) based on sex. For every 1-point increase in pain score, all athletes had a 1.43-day increase in RTSP. Conclusion These results can be used as data to develop injury prevention programs for TKD athletes and to determine their RTSP.

Injury Patterns in Fencing Athletes - A Retrospective Review.

Fencing is a unique and increasingly popular sport, but limited data exist regarding related injuries. To examine the types of injuries incurred by fencing athletes, and to analyze associations between age, sex, and hand dominance with type and location of injury. Cross-sectional. Retrospective chart reviews were performed to evaluate fencing related injuries in athletes evaluated in the sports medicine and orthopedic clinics of a large teaching hospital. One hundred and eighty-six patients (98 male, 88 female) were included. Average age at time of injury was 14.6 years (range 9 - 32 years). 73% of injuries involved the lower extremity, 16% involved the upper extremity and 10% affected the back. In the lower extremity, the knee (49%), ankle (16%) and hip (11%) were most commonly affected. 80% of injuries were treated with physical therapy. Only 5% required surgical intervention. Injuries of both upper and lower extremities were more commonly seen on the athlete's dominant side, and the majority of injuries (77%) occurred in athletes 13 years or older. The majority of injuries in these fencing athletes affected the lower extremity, most commonly the knee. Extensor mechanism dysfunction, primarily patellofemoral pain, was the most common diagnosis. Hand dominance, patient age, and patient sex did affect different injury characteristics. 2b.

Subsequent musculoskeletal injury after concussion in National Football League players

ObjectiveTo assess whether National Football League (NFL) players diagnosed with a concussion have an increased risk of injury after return to football.MethodsA retrospective cohort study analysed the hazard of subsequent...

Think fast, stay healthy? A narrative review of neurocognitive performance and lower extremity injury

BackgroundLower extremity (LE) injury has been problematic in athletic populations. While previous research has identified biomechanical and neuromuscular risk factors, more recent efforts have determined that neurocognitive performance (NP) may influence LE injury risk. ObjectivesTo describe the present findings pertaining to the relationship between NP and LE injury. This review described potential cerebral neural mechanisms underpinning LE injury with a particular emphasis on the role of vision in sensorimotor integration. Lastly, newer technology such as stroboscopic eyewear, smartboards, and virtual/augmented reality were discussed for their utility in assessing and training NP. MethodsNarrative review that described NP and LE injury, as well as plausible mechanisms and training interventions. ResultsNP appears to influence both LE biomechanics and LE injury risk. Athletes with worse NP demonstrated decreased knee flexion and increased frontal plane knee loading compared to better performing athletes. Most studies determined an association between NP and LE injury risk. Visual motor reaction time, processing speed, and working memory appear to be useful NP measures for identifying athletes at risk for LE injury. Various brain regions including the precuneus and lingual gyrus may be implicated as neural signatures for LE injury. While recently developed technology offer promise, far-transfer effects to LE injury risk reduction have yet to be substantially investigated. ConclusionsNP should be considered an important component for identifying LE injury risk. Sports scientists and clinicians may consider a variety of assessments and interventions to quantify and train NP in conjunction with previously established protocols.

Relationship Between the Results of the Landing Error Scoring System and Trunk Muscle Thickness.

A landing error scoring system (LESS) is widely used to evaluate landing maneuvers. Poor landing maneuvers, such as lateral bending of the trunk, are thought to be associated with a risk of lower-extremity injury. However, no studies have examined the association between landing and trunk muscle function, which is associated with a high risk of lower-extremity injury. This study examined whether an association exists between landing movements and a high risk of lower-extremity injury and trunk muscle function. It was hypothesized that athletes with poor activation of deep trunk muscle (transversus abdominis and internal oblique) would have lower LESS scores. Cross-sectional study. The trunk muscle thickness at rest and during the plank was measured using ultrasonography. The percent of change in muscle thickness (during plank/at rest) was calculated. The LESS was measured using the Physimax. Based on the LESS scores, patients were divided into high- (LESS > 6) and low-risk (5 > LESS) groups for lower extremity injury. The relationship between the high-risk group and trunk muscle thickness was examined using a stepwise regression analysis. The high-risk group had significantly lower muscle thicknesses of the transversus abdominis (p=0.02) and transversus abdominis plus internal oblique abdominis (p=0.03) muscles during the plank. Additionally, the high-risk group showed significantly lower percent of change in muscle thickness of the internal oblique (p=0.02) and transversus abdominis plus internal oblique (p=0.01) muscles. Only the percentage of change in the thickness of the internal oblique and transverse abdominal muscles was extracted from the regression as a factor. The findings indicated that athletes with landing movements and a high risk of injury, as determined based on the LESS results, had low trunk muscle function, and a relationship was observed between the change in thickness of transversus abdominis and internal oblique abdominis muscles. 3B.