Abstract：
CONTEXT:An arthrogenic muscle response (AMR) of the soleus and peroneal muscles has been previously demonstrated in individuals with chronic ankle instability (CAI), but the presence of AMR in muscles acting on joints proximal to unstable ankles has not been previously explored. OBJECTIVE:To determine if AMR is present in the quadriceps and hamstrings muscles of those with and without unilateral CAI. DESIGN:Case control. SETTING:University research laboratory. PATIENTS OR OTHER PARTICIPANTS:Twenty subjects with unilateral CAI (12 males, 8 females: age = 19.9 +/- 3.7 years; height = 170.3 +/- 15.6 cm; mass = 78.0 +/- 23.1 kg) and 21 controls (16 males, 5 females: age = 23.2 +/- 5.4 years; height = 173.9 +/- 12.7 cm; mass = 87.2 +/- 24.6 kg) with no previous ankle injuries. MAIN OUTCOME MEASURE(S):The central activation ratio (CAR), a measure of motoneuron pool excitability during maximal voluntary isometric contraction, for the hamstrings and quadriceps muscles was measured in both limbs using the superimposed burst technique. RESULTS:The CAI group demonstrated quadriceps CARs that were significantly larger in their involved limbs (.87 +/- .09), as compared with their uninvolved limbs (.84 +/- .08), whereas no significant side-to-side difference was seen in the control group (sham involved = .80 +/- .11, sham uninvolved = .81 +/- .11). When values from both the involved and uninvolved limbs were averaged, the hamstrings CAR was significantly lower for the CAI group (.94 +/- .03) than for the control group (.96 +/- .03). CONCLUSIONS:Arthrogenic inhibition of the hamstrings muscles bilaterally and facilitation of the quadriceps muscle ipsilateral to the involved limb were noted in subjects with unilateral CAI. Motoneuron pool excitability appears to be altered in muscles that act on joints proximal to the ankle in those with unilateral CAI.
journal_name
J Athl Trainjournal_title
Journal of athletic trainingauthors
Sedory EJ,McVey ED,Cross KM,Ingersoll CD,Hertel Jsubject
Has Abstractpub_date
2007-07-01 00:00:00pages
355-60issue
3eissn
1062-6050issn
1938-162Xjournal_volume
42pub_type
杂志文章,随机对照试验abstract：CONTEXT:Foam-rolling exercises are frequently included in warmups due to their benefits for increasing range of motion (ROM). However, their effects on proprioception and vertical jump have not been analyzed and therefore remain unclear. Moreover, the effects of performing practical-duration foam-rolling exercises afte...
journal_title：Journal of athletic training
pub_type： 杂志文章,随机对照试验
doi：10.4085/1062-6050-474-18
更新日期：2019-11-01 00:00:00
abstract：CONTEXT:As health care providers, certified athletic trainers (ATs) should be role models for healthy behaviors. OBJECTIVE:To analyze the self-reported health and fitness habits of ATs. DESIGN:A cross-sectional, cluster random sample. SETTING:Online questionnaire. PATIENTS OR OTHER PARTICIPANTS:Of a sampling frame ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-43.6.617
更新日期：2008-10-01 00:00:00
abstract：:The efficacy of prophylactic knee bracing has been refuted with regard to reducing the incidence and/or severity of injuries to the knee joint. This is thought to be a result of the prophylactic knee brace's ineffectiveness in protecting the knee joint from valgus loads. Furthermore, discrepancies exist regarding the ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：CONTEXT: :The advent of Web-based sports injury surveillance via programs such as the High School Reporting Information Online system and the National Collegiate Athletic Association Injury Surveillance Program has aided the acquisition of data for girls' and women's field hockey injuries. OBJECTIVE: :To describe the ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-173-17
更新日期：2018-10-01 00:00:00
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 re...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-50.8.03
更新日期：2015-09-01 00:00:00
abstract：CONTEXT:Ankle injuries are common at all levels of American football, and retired National Football League (NFL) players have a high prevalence of osteoarthritis (OA), but little is known about how ankle injuries influence OA prevalence and daily activities in this population or how surgical interventions for such inju...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-421-18
更新日期：2019-11-01 00:00:00
abstract：OBJECTIVE:To present a chronologic review of the history and evolution of athletic training education in the United States as related to the professional growth of athletic training and the National Athletic Trainers' Association. BACKGROUND:Commonly accepted characteristics of a profession are an identifiable body 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：CONTEXT:Athletic trainers (ATs) know to diagnose exertional heat stroke (EHS) via rectal thermometry (T(re)) and to treat EHS via cold-water immersion (CWI) but do not implement these recommendations in clinical practice. OBJECTIVE:To gain an understanding of educational techniques used to deliver content regarding EH...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-46.5.523
更新日期：2011-09-01 00:00:00
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journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1998-04-01 00:00:00
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journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1993-10-01 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：2012-03-01 00:00:00
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journal_title：Journal of athletic training
pub_type： 杂志文章,随机对照试验
doi：10.4085/1062-6050-45.2.164
更新日期：2010-03-01 00:00:00
abstract：:OBJECTIVE: To compare the surface electromyographic activity of the abdominal musculature and rectus femoris (RF) muscle during trunk-flexion exercises using 3 abdominal exercise devices (Ab Roller, ABslide, and FitBall) and the traditional trunk curl. DESIGN AND SETTING: Each subject performed approximately 15 repeti...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2004-03-01 00:00:00
abstract：CONTEXT:Exercise in the heat produces cellular conditions that may leave skeletal muscle susceptible to exercise-induced microdamage. Delayed-onset muscle soreness (DOMS) is a clinical model of contraction-induced skeletal muscle injury. OBJECTIVE:To determine whether thermoregulation during exercise heat stress adver...
journal_title：Journal of athletic training
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doi：
更新日期：2005-10-01 00:00:00
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journal_title：Journal of athletic training
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doi：10.4085/1062-6050-46.6.642
更新日期：2011-11-01 00:00:00
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journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2003-06-01 00:00:00
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journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-49.3.56
更新日期：2015-02-01 00:00:00
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journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-390-17
更新日期：2019-02-01 00:00:00
abstract：CONTEXT:Supervisor support has been identified as key to the fulfillment of work-life balance for the athletic trainer (AT), yet limited literature exists on the perspectives of supervisors. OBJECTIVE:To investigate how the head AT facilitates work-life balance among staff members within the National Collegiate Athlet...
journal_title：Journal of athletic training
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doi：10.4085/1062-6050-49.3.88
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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
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更新日期：2013-09-01 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
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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
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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：10.4085/1062-6050-43.5.477
更新日期：2008-09-01 00:00:00
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journal_title：Journal of athletic training
pub_type： 杂志文章,评审
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更新日期：2019-06-01 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,随机对照试验
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更新日期：2018-03-01 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：2016-03-01 00:00:00
