Abstract：
:OBJECTIVE: To investigate the retraction time, forces, and torques applied to the football helmet during removal of the face mask with different face-mask removal tools. DESIGN AND SETTING: Subjects retracted the face mask of a football helmet mounted to a force platform in a laboratory setting. They removed a standard face mask by cutting or removing (or both) the lateral plastic loop straps using 4 different tools: the Trainer's Angel (TA), FM Extractor (FM), power screwdriver (SD), and Quick Release System (QR) in a counterbalanced fashion. SUBJECTS: Eighteen certified athletic trainers participated in this study. MEASUREMENTS: We started measuring time when the subject picked up the tool and ended when the face mask was in a fully retracted position. Maximum forces and torques were measured from the force platform during the retraction process. RESULTS: The SD and QR retracted the face mask significantly faster than the TA and FM. Forces producing superior-inferior translation were least with the SD. The SD and QR produced less lateral translation and rotation and lateral flexion moment than the TA and FM. The FM produced less torque in the lateral flexion moment than the TA. CONCLUSIONS: Tools that removed the loop straps (SD, QR) were faster and produced less force and torque on the helmet than the tools that cut through the loop straps (TA, FM).
journal_name
J Athl Trainjournal_title
Journal of athletic trainingauthors
Jenkins HL,Valovich TC,Arnold BL,Gansneder BMkeywords:
subject
Has Abstractpub_date
2002-09-01 00:00:00pages
246-251issue
3eissn
1062-6050issn
1938-162Xjournal_volume
37pub_type
杂志文章abstract：OBJECTIVE:To determine the effect of a 6-week leg press training program on quadriceps femoris peak torque and lower extremity functional performance. DESIGN AND SETTING:A 2 x 3 factorial design. A private university-based outpatient physical therapy clinic was used for testing. The university strength and conditionin...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1996-10-01 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：OBJECTIVE:The purpose of this survey was for comparison with a similar 1981 survey to determine if proprioceptive neuromuscular facilitation (PNF) techniques are being implemented in the same manner today. DESIGN AND SETTING:The survey was made available at the 1993 NATA Clinical Symposium. SUBJECTS:The subjects were...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：CONTEXT: An estimated 40 million school-aged children (age range = 5-18 years) participate annually in sports in the United States, generating approximately 4 million sport-related injuries and requiring 2.6 million emergency department visits at a cost of nearly $2 billion. OBJECTIVE: To determine the effects of a ...
journal_title：Journal of athletic training
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.4085/1062-6050-173-16
更新日期：2018-01-01 00:00:00
abstract：CONTEXT:Functional ankle instability (FAI) affects a large part of the population. Inconsistent findings have been reported regarding the existence of functional performance deficits in individuals with FAI. OBJECTIVE:To examine functional performance in participants with FAI compared with participants in a control gr...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-43.4.342
更新日期：2008-07-01 00:00:00
abstract：CONTEXT:The relationship between lower extremity alignment and lower extremity injury risk remains poorly understood, perhaps because most authors have examined only individual or a select group of alignment variables. Examining the relationships among alignment variables may allow us to more accurately describe lower ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-44.5.511
更新日期：2009-09-01 00:00:00
abstract：:Reference: Dunning J, Batchelor J, Stratford-Smith P, et al. A meta-analysis of variables that predict significant intracranial injury in minor head trauma. Arch Dis Child. 2004;89:653-659.Clinical Question: Which clinical signs or symptoms of minor head trauma are predictive of intracranial hemorrhage in children and...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2005-06-01 00:00:00
abstract：CONTEXT:Previous researchers have examined factor structures for common concussion symptom inventories. However, they failed to discriminate between the acute (<72 hours) and subacute (3 days-3 months) periods after concussion. The Sport Concussion Assessment Tool (SCAT) is an acute assessment that, when compared with ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-393.19
更新日期：2020-09-04 00:00:00
abstract：:Congratulations to the winners of the 2018 Outstanding Manuscript Awards, as determined by the Editorial Board and the Editors of the Journal of Athletic Training. ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-54-05
更新日期：2019-05-01 00:00:00
abstract：CONTEXT:In clinical practice, the range of motion (ROM) of the non involved side often serves as the reference for comparison with the injured side. Previous investigations of non-weight-bearing (NWB) ankle dorsiflexion (DF) ROM measurements have indicated bilateral symmetry for the most part. Less is known about ankle...
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
abstract：OBJECTIVE: To present recommendations for the diagnosis, management, outcomes, and return to play of athletes with superior labral anterior-posterior (SLAP) injuries. BACKGROUND: In overhead athletes, SLAP tears are common as either acute or chronic injuries. The clinical guidelines presented here were developed bas...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-59-16
更新日期：2018-03-01 00:00:00
abstract：CONTEXT: It is important to understand the process whereby athletic trainers learn about their future roles, particularly when the roles can be complex and demanding. Little is known about the experiences of athletic training doctoral students, including facilitators and barriers to socialization as aspiring faculty m...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-52.7.01
更新日期：2017-10-01 00:00:00
abstract：:OBJECTIVE: To examine the influences of clinician technique on performance and interpretation of the Lachman test. DESIGN AND SETTING: Blinded, controlled, and randomized-block design clinical study conducted in an athletic training laboratory classroom. SUBJECTS: Twenty-two certified athletic trainer clinicians and 1...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2003-03-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess the effect of low-volt, microamperage stimulation (LVMAS) on perceived pain and muscle strength following an intense bout of eccentric exercise. DESIGN AND SETTING:An experimental pretest-posttest control group design was used for the study. The experiment was conducte...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1997-04-01 00:00:00
abstract：:OBJECTIVE: To test the influence of cooling on proprioceptive acuity as reflected in the ability to discriminate weights. DESIGN AND SETTING: Participants were trained to perform a weight-discrimination task. Their ability to correctly report small increments in weight was compared before and after local cooling (a 20...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2001-06-01 00:00:00
abstract：CONTEXT:There is plenty of information on electrocardiogram (ECG) and blood pressure (BP) changes in senior athletes. However, a corresponding data in adolescent athletes are scarce. OBJECTIVE:To study the differences in resting ECG and BP between adolescent endurance athletes, non-endurance athletes, and non-athletes...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/78-20
更新日期：2020-11-05 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：CONTEXT: Athletic training facilities have been described in terms of general design concepts and from operational perspectives. However, the size and scope of athletic training facilities, along with staffing at different levels of intercollegiate competition, have not been quantified. OBJECTIVE: To define the size...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-52.3.16
更新日期：2017-08-01 00:00:00
abstract：:The distribution of resources to athletic training programs varies greatly, depending on the size and scope of the athletic program. No research has been found that assesses the differences in dollars allocated within various athletic training settings or assesses whether the different program levels allocate similar ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：CONTEXT: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 efforts to collect data on ice hockey injuries. OBJECTIVE:To describe the epidemiology of injuries sustained in hi...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-176-17
更新日期：2018-12-01 00:00:00
abstract：CONTEXT:Runners with high medial longitudinal arch structure demonstrate unique kinematics and kinetics that may lead to running injuries. The mobility of the midfoot as measured by the change in arch height is also suspected to play a role in lower extremity function during running. The effect of arch mobility in high...
journal_title：Journal of athletic training
pub_type： 临床试验,杂志文章
doi：10.4085/1062-6050-49.3.05
更新日期：2014-05-01 00:00:00
abstract：CONTEXT:Greater musculotendinous stiffness may enhance spinal stretch reflex sensitivity by improving mechanical coupling of the muscle spindle and the stretch stimulus. This heightened sensitivity would correspond with a shorter latency and higher-amplitude reflex response, potentially enhancing joint stability. OBJE...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-43.1.29
更新日期：2008-01-01 00:00:00
abstract：CONTEXT:Instruction can be used to alter the biomechanical movement patterns associated with anterior cruciate ligament (ACL) injuries. OBJECTIVE:To determine the effects of instruction through combination (self and expert) feedback or self-feedback on lower extremity kinematics during the box-drop-jump task, running-...
journal_title：Journal of athletic training
pub_type： 杂志文章,随机对照试验
doi：10.4085/1062-6050-48.2.09
更新日期：2013-03-01 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:Although consensus statements and recommendations from professional organizations aim to reduce the incidence of injury or sudden death in sport, nothing is mandated at the high school level. This allows states the freedom to create and implement individual policies. An example of a recommended policy is heat a...
journal_title：Journal of athletic training
pub_type： 杂志文章,多中心研究
doi：10.4085/1062-6050-51.2.09
更新日期：2016-04-01 00:00:00
abstract：CONTEXT:The superimposed-burst (SIB) technique is commonly used to quantify central activation failure after knee-joint injury, but its reliability has not been established in pathologic cohorts. OBJECTIVE:To assess within-session and between-sessions reliability of the SIB technique in patients with patellofemoral pa...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-50.10.03
更新日期：2015-11-01 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:Deficits in dynamic postural control predict lower limb injury. Differing fatiguing protocols negatively affect dynamic postural control. The effect of high-intensity, intermittent exercise on dynamic postural control has not been investigated. OBJECTIVE:To investigate the effect of a high-intensity, intermitt...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-49.6.08
更新日期：2015-04-01 00:00:00
abstract：CONTEXT:Cooling jackets are a common method for removing stored heat accumulated during exercise. To date, the efficiency and practicality of different types of cooling jackets have received minimal investigation. OBJECTIVE:To examine whether a cooling jacket containing a phase-change material (PC17) results in more r...
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 determine injury types, natures, anatomical locations, recommended amount of time missed, and injury rates during weightlifting training. DESIGN AND SETTING:We collected and analyzed medical injury records of resident athletes and during numerous training camps to generate an injury profile. SUBJECTS:Eli...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1999-07-01 00:00:00
