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"Preseason screening"

Nicol van Dyk, Roald Bahr, Rodney Whiteley, Johannes L Tol, Bhavesh D Kumar, Bruce Hamilton, Abdulaziz Farooq, Erik Witvrouw
BACKGROUND: A hamstring strain injury (HSI) has become the most common noncontact injury in soccer. Isokinetic muscle strength deficits are considered a risk factor for HSIs. However, underpowered studies with small sample sizes unable to determine small associations have led to inconclusive results regarding the role of isokinetic strength and strength testing in HSIs. PURPOSE: To examine whether differences in isokinetic strength measures of knee flexion and extension represent risk factors for hamstring injuries in a large cohort of professional soccer players in an adequately powered study design...
July 2016: American Journal of Sports Medicine
Tron Krosshaug, Kathrin Steffen, Eirik Kristianslund, Agnethe Nilstad, Kam-Ming Mok, Grethe Myklebust, Thor Einar Andersen, Ingar Holme, Lars Engebretsen, Roald Bahr
BACKGROUND: The evidence linking knee kinematics and kinetics during a vertical drop jump (VDJ) to anterior cruciate ligament (ACL) injury risk is restricted to a single small sample. Still, the VDJ test continues to be advocated for clinical screening purposes. PURPOSE: To test whether 5 selected kinematic and kinetic variables were associated with future ACL injuries in a large cohort of Norwegian female elite soccer and handball players. Furthermore, we wanted to assess whether the VDJ test can be recommended as a screening test to identify players with increased risk...
April 2016: American Journal of Sports Medicine
Eric J Hegedus, Suzanne McDonough, Chris Bleakley, G David Baxter, J Tyler DePew, Ian Bradbury, Chad Cook
BACKGROUND: The ability to predict injury is difficult. Prior injury is the only risk factor that has been reported consistently in multiple research studies. Convenient and easy to perform, physical performance tests (PPTs) have great allure as prognostic factors. METHODS: 11 PPTs were issued to 359 participants over the course of three seasons of National Collegiate Athletic Association Division I athletic competition. Injuries were monitored and reported in a centralised university tracking system...
January 8, 2016: British Journal of Sports Medicine
Joan James, Jatin P Ambegaonkar, Shane V Caswell, James Onate, Nelson Cortes
BACKGROUND: Injury to the anterior cruciate ligament (ACL) can be detrimental to any athlete, having both short- and long-term health consequences. Examining preseason screening landing mechanics can indicate the likelihood of injury during the season. Furthermore, previous injury is also commonly referred as a predisposing factor for reinjury. HYPOTHESIS: Players with a history of lower extremity injury would have higher Landing Error Scoring System (LESS) scores than those with no previous injury, and healthy soccer athletes who sustained an injury during the 2014 season would have higher LESS scores than those who remained uninjured...
March 2016: Sports Health
Rod Whiteley
No abstract text is available yet for this article.
July 2016: British Journal of Sports Medicine
Thomas Henry, Karrin Evans, Suzanne J Snodgrass, Andrew Miller, Robin Callister
OBJECTIVE: To determine whether nonmodifiable and modifiable risk factors [ankle dorsiflexion range of motion (ROM), lower limb power output, and balance], as identified in preseason screening, predict the risk of sustaining a noncontact ankle injury in amateur male soccer players during the training and competitive season. DESIGN: Prospective cohort study. SETTING: Amateur soccer competition (club and area representative teams). PARTICIPANTS: Amateur soccer players (n = 210) aged ≥15 years...
May 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
Philip Malloy, Alexander Morgan, Carolyn Meinerz, Christopher Geiser, Kristof Kipp
PURPOSE: While previous studies have examined the association between ankle dorsiflexion flexibility and deleterious landing postures, it is not currently known how landing kinetics are influenced by ankle dorsiflexion flexibility. The purpose of this study was to examine whether ankle dorsiflexion flexibility was associated with landing kinematics and kinetics that have been shown to increase the risk of anterior cruciate ligament (ACL) injury in female athletes. METHODS: Twenty-three female collegiate soccer players participated in a preseason screening that included the assessment of ankle dorsiflexion flexibility and lower-body kinematics and kinetics during a drop vertical jump task...
December 2015: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Joshua T Weinhandl, Jennifer E Earl-Boehm, Kyle T Ebersole, Wendy E Huddleston, Brian S R Armstrong, Kristian M O'Connor
BACKGROUND: Dynamic knee stability is considered a critical factor in reducing anterior cruciate ligament loads. While the relationships between hamstring force production and anterior cruciate ligament loading are well known in vitro, the influence of hamstring strength to anterior cruciate ligament loading during athletic maneuvers remains unknown. Therefore, the purpose of this study was to determine the influence of hamstring strength on anterior cruciate ligament loading during anticipated sidestep cut...
August 2014: Clinical Biomechanics
Camila C Greco, Wendell L Da Silva, Sérgio R A Camarda, Benedito S Denadai
Muscle strength imbalance can be an important factor in hamstrings muscle strain. A hamstrings/quadriceps (H/Q) strength ratio based on concentric peak torque values (Hcon:Qcon) has traditionally been used to describe the potential for knee-joint destabilization. Because certain standard actions in soccer are explosive, the analysis of the H/Q strength ratio based on the rate of torque development (Hrtd:Qrtd) might also be useful in the evaluation of joint stability. The objective of this study was to compare the Hrtd:Qrtd between professional soccer players with heterogeneous values of Hcon:Qcon...
2012: Journal of Sports Science & Medicine
Katherine M Summers, Suzanne J Snodgrass, Robin Callister
Exercise-associated muscle cramps (EAMC) in the calf are common in rugby league. To date, the etiology and predictors of calf cramping are poorly understood. The aim of this study was to undertake a prospective investigation to identify predictors of calf cramping in rugby league players. Demographic and anthropometric data and calf cramp and injury history were collected in the preseason. Hydration status, number of games played, and calf cramps were recorded on game days. Male rugby league players (n = 103, mean age 18...
March 2014: Journal of Strength and Conditioning Research
Jason Brumitt, Bryan C Heiderscheit, Robert C Manske, Paul E Niemuth, Mitchell J Rauh
PURPOSE/BACKGROUND: Functional tests have been used primarily to assess an athlete's fitness or readiness to return to sport. The purpose of this prospective cohort study was to determine the ability of the standing long jump (SLJ) test, the single-leg hop (SLH) for distance test, and the lower extremity functional test (LEFT) as preseason screening tools to identify collegiate athletes who may be at increased risk for a time-loss sports-related low back or lower extremity injury. METHODS: A total of 193 Division III athletes from 15 university teams (110 females, age 19...
June 2013: International Journal of Sports Physical Therapy
David E Olson, Robby Singh Sikka, Abigail Hamilton, Austin Krohn
Football is one of the most popular sports in the United States and is the leading cause of sports-related injury. A large focus in recent years has been on concussions, sudden cardiac death, and heat illness, all thought to be largely preventable health issues in the young athlete. Injury prevention through better understanding of injury mechanisms, education, proper equipment, and practice techniques and preseason screening may aid in reducing the number of injuries. Proper management of on-field injuries and health emergencies can reduce the morbidity associated with these injuries and may lead to faster return to play and reduced risk of future injury...
September 2011: Current Sports Medicine Reports
Joseph B Myers, Sakiko Oyama, Elizabeth E Hibberd
HYPOTHESIS AND BACKGROUND: Though commonly suggested as an injury risk factor, scapular dysfunction has not been established as a prospective cause of throwing-related upper extremity injury in baseball players. The purpose is to determine whether scapular dysfunction identified during preseason screening is predictive of increased risk of throwing-related shoulder and elbow injuries in high school baseball players. MATERIALS AND METHODS: The presence or absence of scapular dysfunction was obtained prospectively during preseason screenings in 246 high school baseball players over the 2010 and 2011 seasons...
September 2013: Journal of Shoulder and Elbow Surgery
John Goetschius, Helen C Smith, Pamela M Vacek, Leigh Ann Holterman, Sandra J Shultz, Timothy W Tourville, James Slauterbeck, Robert J Johnson, Bruce D Beynnon
BACKGROUND: When landing from a jump, the production of increased intersegmental knee abduction moments and coupled valgus motions has been associated with an increased risk of suffering a noncontact anterior cruciate ligament (ACL) injury in one study. This research has led to the development of a clinic-based algorithm that utilizes measures of knee valgus motion, knee flexion range of motion, body mass, tibial length, and quadriceps-to-hamstring strength ratio data to predict the probability of a high knee abduction moment (pKAM) when landing from a jump in female athletes...
September 2012: American Journal of Sports Medicine
C Couppé, K Thorborg, M Hansen, M Fahlström, J M Bjordal, D Nielsen, M Baun, M Storgaard, S P Magnusson
The aim of the present study was to profile shoulder passive range of motion (ROM) and isometric strength for external (ER) and internal (IR) rotation as part of a preseason screening in adolescent national badminton players. Passive external range of motion (EROM) and internal range of motion (IROM) were examined on the dominant and nondominant shoulder in 31 adolescent national badminton players (12 females and 19 males) with a standard goniometer. Muscle strength was examined with a hand-held dynamometer in ER and IR...
February 2014: Scandinavian Journal of Medicine & Science in Sports
A Frisch, A Urhausen, R Seil, J L Croisier, T Windal, D Theisen
This prospective cohort study aimed at identifying player-related risk factors for injuries in youth football as determined by extensive preseasonal screening. All male U15-U19 players from a regional football school (season 2007-2008; n = 67) underwent preseason evaluations assessing physical fatigue, emotional stress and injury history (questionnaire), anthropometric variables, general joint laxity (Beighton score), lower limb coordination (functional hop tests), aerobic fitness (shuttle run test), strength of knee extensor and flexor muscles (isokinetic tests), static and dynamic balance (force plate tests), and explosive strength (jump tests on force plate)...
December 2011: Scandinavian Journal of Medicine & Science in Sports
Bryan L Riemann, Joe Witt, George J Davies
Much research has examined shoulder range of motion adaptations in overhead-unilateral athletes. Based on the void examining overhead-bilateral athletes, especially competitive swimmers, we examined shoulder external rotation, isolated internal rotation, composite internal rotation, and total arc of motion range of motion of competitive swimmers. The range of motion of registered competitive swimmers (n = 144, age = 12-61 years) was compared by limb (dominant, non-dominant), sex, and age group (youth, high school, college, masters)...
August 2011: Journal of Sports Sciences
Brian J Eckenrode, David S Logerstedt, Brian J Sennett
STUDY DESIGN: Case series. CASE DESCRIPTION: Five consecutive collegiate Division I wrestlers, with a mean age of 20.2 years (range, 18-22 years), were treated postsurgical stabilization to address posterior glenohumeral joint instability. All received physical therapy postoperatively, consisting of range-ofmotion, strengthening, and plyometrics exercises, neuromuscular re-education, and sport-specific training. Functional outcome scores using the Penn Shoulder Score questionnaire were recorded at postsurgical initial evaluation and discharge...
July 2009: Journal of Orthopaedic and Sports Physical Therapy
M J Wooden
The author proposes a step-by-step method of lumbar spine examination which can be incorporated into the large scale preseason athletic participation screening process. This paper lists and describes examination techniques which can be administered quickly and accurately to large numbers of athletes in succession. In addition, the paper delineates two levels of proficiency required to perform the examination, outlines a practical format, and discusses general and specific precautions and contraindications to participation...
1981: Journal of Orthopaedic and Sports Physical Therapy
B Schlinkman
Three hundred and forty-two male high school football players, ranging in age from 15 to 17, were screened for muscular imbalances and joint abnormalities about the knee using a Cybex II lsokinetic Dynamometer and Cybex Data Reduction Computer. Each player was tested at speeds of 60, 240, 300 degrees , and 300" per second for muscular work. The athletes were classified by position (quarterback, runningback, tight end, wide receiver, linemen, linebacker, and defensive back). Several parameters were reported: peak torque with gravity effect for both extensors and flexors, peak torque to body weight, opposing muscle group ratios, torque acceleration energy, work over a preselected number of repetitions, endurance ratio, and agonist-antagonist work ratios...
1984: Journal of Orthopaedic and Sports Physical Therapy
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