Abstract:
CONTEXT:Sex differences in landing biomechanics play a role in increased rates of anterior cruciate ligament (ACL) injuries in female athletes. Exercising to various states of fatigue may negatively affect landing mechanics, resulting in a higher injury risk, but research is inconclusive regarding sex differences in response to fatigue. OBJECTIVE:To use the Landing Error Scoring System (LESS), a valid clinical movement-analysis tool, to determine the effects of exercise on the landing biomechanics of males and females. DESIGN:Cross-sectional study. SETTING:University laboratory. PATIENTS OR OTHER PARTICIPANTS:Thirty-six (18 men, 18 women) healthy college-aged athletes (members of varsity, club, or intramural teams) with no history of ACL injury or prior participation in an ACL injury-prevention program. INTERVENTION(S):Participants were videotaped performing 3 jump-landing trials before and after performance of a functional, sportlike exercise protocol consisting of repetitive sprinting, jumping, and cutting tasks. MAIN OUTCOME MEASURE(S):Landing technique was evaluated using the LESS. A higher LESS score indicates more errors. The mean of the 3 LESS scores in each condition (pre-exercise and postexercise) was used for statistical analysis. RESULTS:Women scored higher on the LESS (6.3 ± 1.9) than men (5.0 ± 2.3) regardless of time (P = .04). Postexercise scores (6.3 ± 2.1) were higher than preexercise scores (5.0 ± 2.1) for both sexes (P = .01), but women were not affected to a greater degree than men (P = .62). CONCLUSIONS:As evidenced by their higher LESS scores, females demonstrated more errors in landing technique than males, which may contribute to their increased rate of ACL injury. Both sexes displayed poor technique after the exercise protocol, which may indicate that participants experience a higher risk of ACL injury in the presence of fatigue.
journal_name
J Athl Trainjournal_title
Journal of athletic trainingauthors
Wesley CA,Aronson PA,Docherty CLdoi
10.4085/1062-6050-50.8.03subject
Has Abstractpub_date
2015-09-01 00:00:00pages
914-20issue
9eissn
1062-6050issn
1938-162Xjournal_volume
50pub_type
杂志文章abstract:OBJECTIVE:Musculotendinous strains are among the most prevalent injuries for which health care professionals provide treatment and rehabilitation interventions. Flexibility has been identified as one of the primary etiologic factors associated with musculotendinous strains, but limited research exists on the effect of ...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVE:To emphasize the potentially harmful effects of high-intensity exercise on cardiac health and the fine line between physiologic and pathologic adaptation to chronic exercise in the elite athlete. This case also highlights the crucial need for regular evaluation of symptoms that suggest cardiac abnormality in...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-47.2.224
更新日期:2012-03-01 00:00:00
abstract:OBJECTIVE:To determine the electromyographic (EMG) activity of the vastus medialis oblique (VMO), vastus lateralis (VL), semitendinosus and semimembranosus (ST), and biceps femoris (BF) muscles during 4 elastic-tubing closed kinetic chain exercises in postoperative patients with anterior cruciate ligament (ACL)-reconst...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1998-10-01 00:00:00
abstract:OBJECTIVE:We examined employer importance ratings of 35 employee characteristics in the collegiate, sports medicine clinic, and high school settings and made comparisons among these settings. DESIGN AND SETTING:All prospective employers were sent a survey. Of the 472 surveys mailed, 282 (60%) were returned, with a sam...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1998-07-01 00:00:00
abstract:CONTEXT:American football has the highest rate of fatalities and catastrophic injuries of any US sport. The equipment designed to protect athletes from these catastrophic events challenges the ability of medical personnel to obtain neutral spine alignment and immobilization during airway and chest access for emergency ...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-50.4.04
更新日期:2015-07-01 00:00:00
abstract:CONTEXT:Athletic trainers recommend and use a multitude of rehydration (REHY) methods with their patients. The REHY modality that most effectively facilitates recovery is unknown. OBJECTIVE:To compare 5 common REHY methods for thermoregulatory and stress hormone recovery after exercise dehydration (EXDE) in trained pa...
journal_title:Journal of athletic training
pub_type: 杂志文章,随机对照试验
doi:10.4085/1062-6050-48.6.01
更新日期:2013-11-01 00:00:00
abstract:CONTEXT:Workplace bullying (WPB) is a series of persistent negative interactions that affect a clinician's ability to perform his or her role. Although WPB has been studied in other health professions, to date, no information exists pertaining to WPB in athletic training. OBJECTIVE:To determine the prevalence of WPB i...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-49.3.16
更新日期:2014-09-01 00:00:00
abstract::In the competitive athlete, there are many causes of anterior knee pain, one of which is patellar tendinitis. Repetition of explosive movements can cause microtrauma to the tendon and its insertion, resulting in patellar tendinitis and occasional tearing, either partial or total. Due to its refractory nature, the trea...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1995-10-01 00:00:00
abstract:OBJECTIVE: :To present recommendations for athletic trainers and other health care providers regarding the identification of risk factors for and management of individuals with patellofemoral pain (PFP). BACKGROUND: :Patellofemoral pain is one of the most common knee diagnoses; however, this condition continues to be ...
journal_title:Journal of athletic training
pub_type: 杂志文章,评审
doi:10.4085/1062-6050-231-15
更新日期:2018-09-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-0247.19
更新日期:2020-10-01 00:00:00
abstract::The socioecological framework is a multilevel conceptualization of health that includes intrapersonal, interpersonal, organizational, environmental, and public policy factors. The socioecological framework emphasizes multiple levels of influence and supports the idea that behaviors both affect and are affected by vari...
journal_title:Journal of athletic training
pub_type: 杂志文章,评审
doi:10.4085/1062-6050-173-18
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:First, we will update recommendations for the prehospital management and care of patients with exertional heat stroke (EHS) in the secondary school setting. Second, we provide action items to aid clinicians in developing best-practice documents and policies for EHS. Third, we provide practical strategies clin...
journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-0173.20
更新日期:2020-12-08 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:1996-07-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-50.5.04
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-51.2.07
更新日期:2016-04-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-212-19
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journal_title:Journal of athletic training
pub_type: 杂志文章
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更新日期:2019-11-01 00:00:00
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journal_title:Journal of athletic training
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-48.3.20
更新日期:2013-09-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.4085/1062-6050-51.12.20
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-46-16
更新日期:2018-11-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-50.6.03
更新日期:2015-09-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-49.3.40
更新日期:2015-01-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章,评审
doi:10.4085/1062-6050-380-18
更新日期:2019-10-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-113-19
更新日期:2020-02-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:10.4085/1062-6050-48.4.16
更新日期:2013-11-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
doi:
更新日期:2002-12-01 00:00:00
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journal_title:Journal of athletic training
pub_type: 杂志文章
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更新日期:2020-01-01 00:00:00