scholarly journals Dynamic Balance Performance and Noncontact Lower Extremity Injury in College Football Players

2013 ◽  
Vol 5 (5) ◽  
pp. 417-422 ◽  
Author(s):  
Robert J. Butler ◽  
Michael E. Lehr ◽  
Michael L. Fink ◽  
Kyle B. Kiesel ◽  
Phillip J. Plisky
Keyword(s):  
Lower Extremity ◽  
Dynamic Balance ◽  
College Football ◽  
Lower Extremity Injury ◽  
Football Players ◽  
Extremity Injury ◽  
Balance Performance

Sustained Improvements in Dynamic Balance and Landing Mechanics After a 6-Week Neuromuscular Training Program in College Women’s Basketball Players

2016 ◽  
Vol 25 (3) ◽  
pp. 233-240 ◽  
Author(s):  
Kate R. Pfile ◽  
Phillip A. Gribble ◽  
Gretchen E. Buskirk ◽  
Sara M. Meserth ◽  
Brian G. Pietrosimone
Keyword(s):  
Lower Extremity ◽  
Injury Prevention ◽  
Outcome Measures ◽  
Dynamic Balance ◽  
Lower Extremity Injury ◽  
Extremity Injury ◽  
Basketball Players ◽  
Landing Mechanics ◽  
Women's Basketball ◽  
Over Time

Context:Epidemiological data demonstrate the need for lower-extremity injury-prevention training. Neuromuscularcontrol (NMC) programs are immediately effective at minimizing lower-extremity injury risk and improving sport-related performance measures. Research investigating lasting effects after an injury-prevention program is limited.Objective:To determine whether dynamic balance, landing mechanics, and hamstring and quadriceps strength could be improved after a 6-wk NMC intervention and maintained for a season.Design:Prospective case series.Setting:Controlled laboratory.Participants:11 Division I women’s basketball players (age 19.40 ± 1.35 y, height 178.05 ± 7.52 cm, mass 72.86 ± 10.70 kg).Interventions:Subjects underwent testing 3 times, completing the Star Excursion Balance Test (SEBT), Landing Error Scoring System (LESS), and isometric strength testing for the hamstrings and quadriceps muscles. Pretest and posttest 1 occurred immediately before and after the intervention, respectively, and posttest 2 at the end of the competitive season, 9 mo after posttest 1. Subjects participated in eighteen 30-min plyometric and NMC-training sessions over a 6-wk period.Main Outcome Measures:The normalized SEBT composite score, normalized peak isometric hamstrings:quadriceps (H:Q) ratio, and the LESS total score.Results:The mean composite reach significantly improved over time (F2,10 = 6.96, P = .005) where both posttest scores were significantly higher than pretest (70.41% ± 4.08%) (posttest 1 73.48% ± 4.19%, t10 = –3.11, P = .011) and posttest 2 (74.2% ± 4.77%, t10 = –3.78, P = .004). LESS scores significantly improved over time (F2,10 = 6.29, P = .009). The pretest LESS score (7.30 ± 3.40) was higher than posttest 1 (4.9 ± 1.20, t10 = 2.71, P = .024) and posttest 2 (5.44 ± 1.83, t10 = 2.58, P = .030). There were no statistically significant differences (P > .05) over time for the H:Q ratio when averaging both legs (F2,10 = 0.83, P = .45).Conclusions:A 6-wk NMC program improved landing mechanics and dynamic balance over a 9-mo period in women’s basketball players. NMC adaptations can be retained without an in-season maintenance program.

scholarly journals Using the Star Excursion Balance Test to Assess Dynamic Postural-Control Deficits and Outcomes in Lower Extremity Injury: A Literature and Systematic Review

2012 ◽  
Vol 47 (3) ◽  
pp. 339-357 ◽  
Author(s):  
Phillip A. Gribble ◽  
Jay Hertel ◽  
Phil Plisky
Keyword(s):  
Lower Extremity ◽  
Postural Control ◽  
Exercise Intervention ◽  
Dynamic Balance ◽  
Lower Extremity Injury ◽  
Measurement Tool ◽  
Original Research ◽  
Extremity Injury ◽  
Balance Test ◽  
Star Excursion Balance Test

Context: A dynamic postural-control task that has gained notoriety in the clinical and research settings is the Star Excursion Balance Test (SEBT). Researchers have suggested that, with appropriate instruction and practice by the individual and normalization of the reaching distances, the SEBT can be used to provide objective measures to differentiate deficits and improvements in dynamic postural-control related to lower extremity injury and induced fatigue, and it has the potential to predict lower extremity injury. However, no one has reviewed this body of literature to determine the usefulness of the SEBT in clinical applications. Objective: To provide a narrative review of the SEBT and its implementation and the known contributions to task performance and to systematically review the associated literature to address the SEBT's usefulness as a clinical tool for the quantification of dynamic postural-control deficits from lower extremity impairment. Data Sources: Databases used to locate peer-reviewed articles published from 1980 and 2010 included Derwent Innovations Index, BIOSIS Previews, Journal Citation Reports, and MEDLINE. Study Selection: The criteria for article selection were (1) The study was original research. (2) The study was written in English. (3) The SEBT was used as a measurement tool. Data Extraction: Specific data extracted from the articles included the ability of the SEBT to differentiate pathologic conditions of the lower extremity, the effects of external influences and interventions, and outcomes from exercise intervention and to predict lower extremity injury. Data Synthesis: More than a decade of research findings has established a comprehensive portfolio of validity for the SEBT, and it should be considered a highly representative, noninstrumented dynamic balance test for physically active individuals. The SEBT has been shown to be a reliable measure and has validity as a dynamic test to predict risk of lower extremity injury, to identify dynamic balance deficits in patients with a variety of lower extremity conditions, and to be responsive to training programs in both healthy people and people with injuries to the lower extremity. Clinicians and researchers should be confident in employing the SEBT as a lower extremity functional test.

scholarly journals No Increased Lower Extremity Injury Risk Following Concussion in Youth Tackle Football Players

2018 ◽  
Vol 50 (5S) ◽  
pp. 227-228
Author(s):  
Robert C. Lynall ◽  
Erin B. Wasserman ◽  
Timothy C. Mauntel ◽  
Zachary Y. Kerr ◽  
Eric E. Hall ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Injury Risk ◽  
Lower Extremity Injury ◽  
Football Players ◽  
Extremity Injury ◽  
Tackle Football

Methods for Prediction of Core or Lower Extremity Injury Among High School Football Players as a Strategy for Longitudinal Reduction of Injury Risk

2018 ◽  
Vol 23 (5) ◽  
pp. 205-209 ◽  
Author(s):  
Marisa A. Colston ◽  
Gary B. Wilkerson ◽  
Hillary Dreyfus ◽  
Ryan Ross
Keyword(s):  
High School ◽  
Lower Extremity ◽  
Injury Risk ◽  
Lower Extremity Injury ◽  
Football Players ◽  
Extremity Injury ◽  
High School Football ◽  
The Core ◽  
Neuromechanical Control ◽  
Risk Categorization

Poor neuromechanical control and rapid fatigue of the core muscles are associated with elevated risk for core or lower extremity (CLE) injury. The purpose of this study was to identify preparticipation screening measures associated with both previous and subsequent CLE injuries among high school football players. Self-reported CLE injury history, core muscle endurance, and postural balance were strongly associated with CLE injury. Our findings demonstrated that the same risk categorization cut-points predicted both injury within the previous 12 months and subsequent season injury. Preseason screening results can be used to estimate CLE injury susceptibility among high school football players.

scholarly journals Concussion in National Football League Athletes Is Not Associated With Increased Risk of Acute, Noncontact Lower Extremity Musculoskeletal Injury

2021 ◽  
Vol 9 (5) ◽  
pp. 232596712110034
Author(s):  
Toufic R. Jildeh ◽  
Fabien Meta ◽  
Jacob Young ◽  
Brendan Page ◽  
Kelechi R. Okoroha
Keyword(s):  
Lower Extremity ◽  
National Football League ◽  
Field Performance ◽  
Return To Play ◽  
Lower Extremity Injury ◽  
Extremity Injury ◽  
Lower Extremity Injuries ◽  
Increased Risk ◽  
Extremity Injuries ◽  
And Control

Background: Impaired neuromuscular function after concussion has recently been linked to increased risk of lower extremity injuries in athletes. Purpose: To determine if National Football League (NFL) athletes have an increased risk of sustaining an acute, noncontact lower extremity injury in the 90-day period after return to play (RTP) and whether on-field performance differs pre- and postconcussion. Study Design: Cohort study, Level of evidence, 3. Methods: NFL concussions in offensive players from the 2012-2013 to the 2016-2017 seasons were studied. Age, position, injury location/type, RTP, and athlete factors were noted. A 90-day RTP postconcussive period was analyzed for lower extremity injuries. Concussion and injury data were obtained from publicly available sources. Nonconcussed, offensive skill position NFL athletes from the same period were used as a control cohort, with the 2014 season as the reference season. Power rating performance metrics were calculated for ±1, ±2, and ±3 seasons pre- and postconcussion. Conditional logistic regression was used to determine associations between concussion and lower extremity injury as well as the relationship of concussions to on-field performance. Results: In total, 116 concussions were recorded in 108 NFL athletes during the study period. There was no statistically significant difference in the incidence of an acute, noncontact lower extremity injury between concussed and control athletes (8.5% vs 12.8%; P = .143), which correlates with an odds ratio of 0.573 (95% CI, 0.270-1.217). Days (66.4 ± 81.9 days vs 45.1 ± 69.2 days; P = .423) and games missed (3.67 ± 3.0 vs 2.9 ± 2.7 games; P = .470) were similar in concussed athletes and control athletes after a lower extremity injury. No significant changes in power ratings were noted in concussed athletes in the acute period (±1 season to injury) when comparing pre- and postconcussion. Conclusion: Concussed, NFL offensive athletes did not demonstrate increased odds of acute, noncontact, lower extremity injury in a 90-day RTP period when compared with nonconcussed controls. Immediate on-field performance of skill position players did not appear to be affected by concussion.

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