Abstract：
CONTEXT:The valgus stress test is used clinically to assess injury to the medial knee structures in 2 positions: full extension and some degree of flexion. The amount of flexion used to "isolate" the medial collateral ligament is not consistent in the literature, but most studies have shown that stiffness of the ligaments was consistent between the limbs. OBJECTIVE:To determine (1) if the stiffness of the medial knee structures was the same bilaterally, and (2) if the stiffness was different in full extension compared with 20 degrees of knee flexion. DESIGN:Criterion standard, before-after design. SETTING:University research laboratory. PATIENTS OR OTHER PARTICIPANTS:Both knees of 45 healthy and active volunteers (26 females, 19 males; age = 23.2 +/- 3.96 years, height = 170.6 +/- 7.75 cm, mass = 74.2 +/- 15.14 kg) were studied. INTERVENTION(S):A valgus force of 60 N was applied to the lateral aspect of both knees in full extension and in 20 degrees of flexion. MAIN OUTCOME MEASURE(S):The slope of the force-strain line of the medial knee during a valgus force was calculated using the LigMaster arthrometer. RESULTS:Slope means in full extension were 16.1 +/- 3.3 (right knee) and 15.8 +/- 3.1(left knee). Means for 20 degrees of flexion were 12.2 +/- 3.1 (right) and 11.7 +/- 2.8 (left). Stiffness was greater when the knee was in full extension versus 20 degrees of flexion (t(44) = 12.04, P < .001). No difference was noted between the slopes of the 2 knees in extension (t(44) = 0.74, P = .46) or in flexion (t(44) = 1.2, P = .27). CONCLUSIONS:These findings support the use of the contralateral knee as a control. Further, the valgus stress test should be performed in full extension and in some degree of flexion to assess the different restraining structures of the medial tibiofemoral joint.
journal_name
J Athl Trainjournal_title
Journal of athletic trainingauthors
Aronson PA,Rijke AM,Ingersoll CDdoi
10.4085/1062-6050-43.2.157subject
Has Abstractpub_date
2008-04-01 00:00:00pages
157-63issue
2eissn
1062-6050issn
1938-162Xjournal_volume
43pub_type
杂志文章abstract：CONTEXT:Skinfold calipers (SC) typically are used to determine subcutaneous fat thicknesses. Identifying the exact separation of muscle and fat can complicate measurements. Ultrasound imaging (USI) might provide a better technique for analyzing subcutaneous fat thicknesses. OBJECTIVE:To compare measurements from SC an...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-46.1.50
更新日期：2011-01-01 00:00:00
abstract：OBJECTIVE:To determine if Flex-all 454, as advertised, is effective as a thermal ultrasound couplant. DESIGN AND SETTING:Research design was a one-factor analysis of variance. Subjects received three (alternating order) ultrasound treatments (1 MHz at 1.5 W/cm(2) for 10 minutes) using the following couplants: 50% Flex...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1998-04-01 00:00:00
abstract：CONTEXT:Skeletal muscle fatigue and exercise performance are novel areas of research and clinical application in the photobiomodulation field, and positive outcomes have been reported in several studies; however, the optimal measures have not been fully established. OBJECTIVE:To assess the acute effect of photobiomodu...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-51.3.10
更新日期：2016-02-01 00:00:00
abstract：CONTEXT: Dynamic balance deficits have been described postconcussion, even after athletes return to play. Lower extremity (LE) musculoskeletal injury rates increase for up to 1 year after concussion, but the long-term musculoskeletal implications of concussion are unclear. OBJECTIVE: To (1) examine the association o...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-52.2.03
更新日期：2017-06-02 00:00:00
abstract：OBJECTIVE:To present the case of a bone lesion of the scapula in a collegiate basketball player. BACKGROUND:A 19-year-old National Collegiate Athletic Association Division I male basketball player presented with pain in the posterior region of the right shoulder. During practice, he was performing a layup when his arm...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-48.3.07
更新日期：2013-11-01 00:00:00
abstract：CONTEXT:Weakness or decreased activation of the hip abductors and external rotators has been associated with lower extremity injury, especially in females. Resisted side stepping is commonly used to address hip weakness. Whereas multiple variations of this exercise are used clinically, few data exist regarding which va...
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
abstract：CONTEXT:Sport specialization has been defined as year-round intensive training in a single sport to the exclusion of other sports. A commonly used survey tool created by Jayanthi et al, which classifies athletes as having a low, moderate, or high level of specialization, categorizes only athletes answering yes to "Have...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-379-18
更新日期：2019-10-01 00:00:00
abstract：OBJECTIVE:To offer an alternative perspective on current continuing education practices and to propose a model for facilitating continuing education in the athletic training workplace. BACKGROUND:Professional knowledge can quickly become outdated, and the personal/professional contexts of allied medical fields such as...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1998-01-01 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:A narrow base of gait (BOG), the mediolateral distance between the foot and the body's line of gravity at midstance, during running is a suggested cause of injuries such as iliotibial band syndrome and tibial stress injury. However, an understanding of modifiable and nonmodifiable factors that influence BOG is ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-565-19
更新日期：2020-12-01 00:00:00
abstract：CONTEXT:Scapular rehabilitation exercises should focus on selective activation of weaker muscles and minimal activation of hyperactive muscles. For rehabilitation of overhead athletes, single-plane open chain exercises below 90° of shoulder elevation are often recommended. Moreover, incorporating the kinetic chain in s...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-136-19
更新日期：2020-04-01 00:00:00
abstract：CONTEXT:A variety of ankle self-stretching exercises have been recommended to improve ankle-dorsiflexion range of motion (DFROM) in individuals with limited ankle dorsiflexion. A strap can be applied to stabilize the talus and facilitate anterior glide of the distal tibia at the talocrural joint during ankle self-stret...
journal_title：Journal of athletic training
pub_type： 杂志文章,随机对照试验
doi：10.4085/1062-6050-51.1.01
更新日期：2015-12-01 00:00:00
abstract：:OBJECTIVE: To evaluate the factorial and construct validity of the Head Injury Scale (HIS) among a sample of male and female collegiate athletes. DESIGN AND SETTING: Using a cross-sectional design, we established the factorial validity of the HIS scale with confirmatory factor analysis and the construct validity of th...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2003-06-01 00:00:00
abstract：OBJECTIVE:The purpose of this research was to investigate the hazards of lightning for participants in outdoor athletics and to determine the existence of, and assess the nature of, lightning safety policy at the collegiate level. DESIGN AND SETTING:We used data from the National Severe Storms Laboratory in Norman, Ok...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：CONTEXT:Shoulder injuries are common in athletes involved in overhead sports, and scapular dyskinesis is believed to be one causative factor in these injuries. Many authors assert that abnormal scapular motion, so-called dyskinesis, is related to shoulder injury, but evidence from 3-dimensional measurement studies rega...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-44.2.160
更新日期：2009-03-01 00:00:00
abstract：CONTEXT:Slideboard exercise is consistent with the American College of Sports Medicine guidelines for exercise intensity of 55% to 90% of maximal heart rate or 40% to 85% of maximal oxygen uptake. OBJECTIVE:To determine if slideboard exercise while in a leg harness increases the metabolic and cardiorespiratory demands...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：CONTEXT:Recent research in the health care professions has shown that specific personal and environmental characteristics can predict burnout, which is a negative coping strategy related to stressful situations. Burnout has been shown to result in physiologic (eg, headaches, difficulty sleeping, poor appetite), psychol...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-44.1.58
更新日期：2009-01-01 00:00:00
abstract：CONTEXT:Understanding the factors that predict return to sport (RTS) after anterior cruciate ligament reconstruction facilitates clinical decision making. OBJECTIVE:To develop a clinical decision algorithm that could predict RTS and non-RTS based on the differences in the variables after anterior cruciate ligament rec...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-82-19
更新日期：2020-07-01 00:00:00
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 presen...
journal_title：Journal of athletic training
pub_type： 杂志文章,随机对照试验
doi：
更新日期：2007-07-01 00:00:00
abstract：CONTEXT: Because of the increasing popularity of participation in Irish dance, the incidence of lower limb injuries is high among this competitive population. OBJECTIVE: To investigate the effects of fatigue on the peak lower limb and trunk angles as well as the peak lower limb joint forces and moments of competitiv...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-52.3.12
更新日期：2017-07-01 00:00:00
abstract：OBJECTIVE:To compare the cooling and rewarming effects of two clinical 20-minute cryotherapy treatments on the temperature of the human leg. DESIGN AND SETTING:Sixteen subjects were randomly treated with either 20 minutes of a 1.8-kg crushed-ice pack, placed directly over the left calf, or a 20-minute immersion in a c...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：OBJECTIVE:To review 16 years of National Collegiate Athletic Association (NCAA) injury surveillance data for men's wrestling and identify potential areas for injury prevention initiatives. BACKGROUND:From 1988-1989 through 2003-2004, 17% of NCAA schools sponsoring varsity men's wrestling programs participated in annua...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2007-04-01 00:00:00
abstract：CONTEXT:A discrepancy in anterior cruciate ligament (ACL) injury rates exists between men and women. Structural differences between the sexes often are implicated as a factor in this discrepancy. Researchers anecdotally assume that men and women tend to display different normative values for certain lower extremity ali...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-44.3.249
更新日期：2009-05-01 00:00:00
abstract：CONTEXT: :A multilevel model has been used to describe the complex nature of work-life balance in sport organizations. Organizational aspects such as work scheduling, hours worked, job demands, and decreased perceived value have been reported as factors that can positively or negatively affect work-life balance. Howeve...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-311-17
更新日期：2018-08-01 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：CONTEXT:Ankle sprains are the most common orthopaedic pathologic condition, and more concerning is the high percentage of persons who develop chronic ankle instability (CAI). Researchers have reported that patients with CAI are restricted occupationally, have more functional limitations, and have a poorer health-relate...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-50.3.05
更新日期：2015-07-01 00:00:00
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journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2001-12-01 00:00:00
abstract：OBJECTIVE:To offer an overview of sport-related concussion (SRC) prevention and education strategies in the context of the socioecological framework (SEF). Athletic trainers (ATs) will understand the many factors that interact to influence SRC prevention and the implications of these interactions for effective SRC educ...
journal_title：Journal of athletic training
pub_type： 杂志文章,评审
doi：10.4085/1062-6050-51.12.02
更新日期：2017-03-01 00:00:00
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journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2006-04-01 00:00:00
abstract：CONTEXT: :A comprehensive systematic review of the literature on the use of augmented information in anterior cruciate ligament (ACL) injury-prevention programs to improve jump-landing technique was conducted. The use of motor-learning concepts could provide more robust means of preventing ACL injuries. OBJECTIVE: :To...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-320-17
更新日期：2018-09-01 00:00:00
