Abstract：
CONTEXT:Individual and team injury burden and performance are 2 key considerations facing practitioners in the daily prescription of an athlete's training load. Whereas a considerable number of researchers have examined univariate relationships between training load and performance, training load and injury, or injury and performance, few investigators have examined all 3 concurrently. OBJECTIVE:To assess the association among training load, injury burden, and performance in professional rugby union. DESIGN:Descriptive epidemiology study. SETTING:The English Premiership competition. PATIENTS OR OTHER PARTICIPANTS:Individual injury and training load data, as well as team performance data, were captured during the 2015-2016 (n = 433 players) and 2016-2017 (n = 569 players) seasons. MAIN OUTCOME MEASURE(S):Data were aggregated into team average scores for each week, including weekly (acute) load, smoothed chronic load, changes in load, injury burden, and weekly performance. Linear mixed modelling techniques were used to assess the association among measures. RESULTS:Injury burden was negatively associated with performance, with a high weekly burden associated with a likely harmful (P = .01) decrease in performance. Training load measures displayed only trivial associations with performance. Only the acute:chronic workload ratio measure was clearly associated with injury burden, with a possibly harmful effect (P = .02). Both squad size and player availability were associated with only trivial changes in performance. CONCLUSIONS:Whereas no association between average training load and performance existed, associations between training load and injury burden and between injury burden and performance were clear. Further investigation using more sensitive and individualized measures of load, performance, and injury may elicit a clearer relationship and should be considered for future work.
journal_name
J Athl Trainjournal_title
Journal of athletic trainingauthors
West SW,Williams S,Kemp SPT,Eager R,Cross MJ,Stokes KAdoi
10.4085/1062-6050-0387.19subject
Has Abstractpub_date
2020-09-01 00:00:00pages
960-966issue
9eissn
1062-6050issn
1938-162Xpii
442548journal_volume
55pub_type
杂志文章abstract：CONTEXT:Injuries are a significant problem in the world of sports. Hope and social support are very important features in providing psychological help as people face life challenges such as sport injuries. OBJECTIVE:To examine how hope and social support uniquely and jointly predict postinjury rehabilitation beliefs, ...
journal_title：Journal of athletic training
pub_type： 杂志文章,多中心研究
doi：10.4085/1062-6050-48.1.03
更新日期：2013-01-01 00:00:00
abstract：CONTEXT:Motion in the lumbar spine during certain physical activities may exceed tissue homeostasis, leading to low back pain. Previous authors have assessed sagittal motion of the lumbar spine during walking; however, limited attention has been focused on changes in spine position with walking or running on different ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：CONTEXT:Alcohol consumption among college students has been evaluated at many levels, but assessment of alcohol consumption among collegiate athletic training students has not been substantially reviewed. Understanding the alcohol use of this college-age group adds to the overall literature on alcohol consumption of th...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2006-10-01 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：: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：:Tape has traditionally been used to support the ankle during activity. More recently, commercial ankle braces have been worn as an alternative. The cumulative information on the effects of taped versus braced ankle support or interbrace comparisons is inconclusive. With few exceptions, ankle brace studies have collect...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1995-09-01 00:00:00
abstract：:OBJECTIVE: To establish a time profile to determine how athletic training students use their time in clinical placements and to determine the effects of academic standing, sex, sport type, and risk of injury associated with a sport during athletic training students' clinical placements on instructional, clinical, unen...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：2002-12-01 00:00:00
abstract：CONTEXT:Many athletes continue to participate in practices and games while experiencing concussion-related symptoms, potentially predisposing them to subsequent and more complicated brain injuries. Limited evidence exists about factors that may influence concussion-reporting behaviors. OBJECTIVE:To examine the influen...
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
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
abstract：CONTEXT:Previous research on American football injuries in Japan has focused on incidence proportion in terms of the number of injuries divided by the number of players. This is the first study to examine injury rates over several seasons. OBJECTIVE:To conduct a prospective study of injuries in a Japanese Division I c...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-48.4.15
更新日期：2013-11-01 00:00:00
abstract：CONTEXT: Our knowledge of the current epidemiology of skin infections among wrestlers is limited. OBJECTIVE: To analyze and report the epidemiology of skin infections among National Collegiate Athletic Association (NCAA) men's wrestling student-athletes during the 2009-2010 through 2013-2014 academic years. DESIGN:...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-52.2.16
更新日期：2017-05-01 00:00:00
abstract：CONTEXT:The prevalence of shoulder pain among competitive swimmers is high, but no guidelines exist to reduce shoulder injuries. Elucidating differences between swimmers with and without shoulder pain can serve as a basis for the development of a program to prevent shoulder injury that might lead to pain and dysfunctio...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-47.2.149
更新日期：2012-03-01 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：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: :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：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：CONTEXT:Athletic directors are charged with making impactful decisions for secondary school athletic programs that mitigate risk for stakeholders involved. This includes decision-making regarding the provision of medical care for student-athletes. To date, limited research has explored athletic directors' perceptions o...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/54-20
更新日期：2020-11-05 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：:Various continental sporting events have exposed team sports referees to different environmental conditions. Several studies have focused on strategies to prevent athlete performance impairment induced by heat or warm (or both) conditions, but few authors have investigated the effect of heat on referees' performance. ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-51.3.04
更新日期：2016-03-01 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: 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：CONTEXT:The ratio of clinicians to patients has been associated with health outcomes in many medical contexts but has not been explored in collegiate sports medicine. The relationship between administrative and financial oversight models and staffing is also unknown. OBJECTIVE:To (1) evaluate staffing patterns in Nati...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-0463-19
更新日期：2020-06-23 00:00:00
abstract：CONTEXT:The ingestion of carbohydrate (CHO) before and during exercise and at halftime is commonly recommended to soccer players for maintaining blood glucose concentrations throughout match play. However, an exercise-induced rebound glycemic response has been observed in the early stages of the second half of simulate...
journal_title：Journal of athletic training
pub_type： 杂志文章,随机对照试验
doi：10.4085/1062-6050-49.3.12
更新日期：2014-07-01 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：CONTEXT: Environmental sustainability efforts are becoming a critical concern in health care. However, little is known regarding how athletic trainers feel about the environment or what can be done to reduce the environmental impact of the practice of athletic training. OBJECTIVE: To examine athletic trainers' attit...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-52.12.19
更新日期：2017-12-01 00:00:00
abstract：OBJECTIVE:To identify the role that exercise plays in the management of diabetes mellitus and to provide the reader with guidelines for preventing and treating exercise-related complications. DATA SOURCES:MEDLINE was searched from 1985 to 1996 using the key words "diabetes," "exercise," "Type I diabetes," and "athlete...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：
更新日期：1997-10-01 00:00:00
abstract：CONTEXT:Fatigue could contribute to ankle-sprain injuries during sport, particularly for individuals with chronic ankle instability (CAI). OBJECTIVE:To examine whether adults with or without CAI develop fatigue at similar rates when performing ankle exercises at the same relative effort level and whether these groups ...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-51.9.02
更新日期：2016-06-02 00:00:00
abstract：CONTEXT:Therapeutic exercise programs that incorporate real-time feedback have been reported to enhance outcomes in patients with lower extremity joint injuries. The Wii Fit has been purported to improve balance, strength, flexibility, and fitness. OBJECTIVE:To determine the effects of Wii Fit rehabilitation on postur...
journal_title：Journal of athletic training
pub_type： 杂志文章,随机对照试验
doi：10.4085/1062-6050-48.2.04
更新日期：2013-05-01 00:00:00
abstract：CONTEXT:The National Institutes of Health created a medical research road map that included the development of the Patient-Reported Outcomes Measurement Information System (PROMIS). A key feature of PROMIS was the development of patient-reported outcome measures (PROs) addressing various aspects of health. Understandin...
journal_title：Journal of athletic training
pub_type： 杂志文章
doi：10.4085/1062-6050-331-17
更新日期：2018-12-01 00:00:00
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
