Background: Recommendations exist to encourage safe youth participation in sport. These recommendations include not specializing 1 sport, limiting less than 8 months per year, and fewer hours week a child’s age. However, limited evidence exists support or refute these recommendations. Hypothesis: High levels of specialization will be associated with history injuries especially overuse injuries, independent age, sex, weekly sport training hours. Athletes who exceed current volume more likely...

Background: The prevalence of sport specialization in high school athletes is unknown. This information needed to determine the scope this issue an active population. Purpose: To and if influenced by classification method, year school, sex, size. A secondary purpose was highly specialized would be more likely report a history lower extremity injuries. Study Design: Cross-sectional study; Level evidence, 3. Methods: High between ages 13 18 years from 2 local schools completed both survey...

Sport specialization is associated with an increased risk of musculoskeletal lower extremity injuries (LEIs) in adolescent athletes presenting clinical settings. However, sport and the incidence LEIs have not been investigated prospectively a large population athletes.To determine if was high school athletes.Cohort study; Level evidence, 2.Participants (interscholastic grades 9-12) were recruited from 29 Wisconsin schools during 2015-2016 year. Participants completed questionnaire...

High school athletes are increasingly encouraged to participate in 1 sport year-round increase their skills. However, no study has examined the association of competition volume, club participation, and specialization with sex lower extremity injury (LEI) a large sample high athletes.Increased participating on team outside sports, levels will all be associated history LEI. Girls more likely engage higher team, classified as highly specialized.Cross-sectional study.Level 3.High completed...

Background: Returning to a healthy level of physical activity is among the most commonly discussed clinical goals for patients recovering from anterior cruciate ligament reconstruction (ACLR). However, has not been objectively measured in this population. Purpose: To investigate differences mean time (min/d) spent moderate-to-vigorous (MVPA) as well daily step count (steps/d) between who underwent ACLR and matched controls. A second purpose was relationships MVPA objective assessments Tegner...

Background: Sport specialization is a strategy to acquire superior sport performance in 1 but associated with increased injury risk. Currently, the degree of high school among Division I athletes unknown. Hypothesis: College will display rates as they progress through their careers. Study Design: Descriptive epidemiological study. Level Evidence: 4. Methods: Three hundred forty-three (115 female) representing 9 sports from Midwest University completed previously utilized questionnaire...

Background: There are a variety of proposed motivations for sport specialization, such as improving skills to an elite level, making all-star or travel teams, receiving scholarship professional contract. However, there has not been quantitative examination the attitudes and beliefs that may be contributing trend specialization year-round participation. Purpose: The primary aim was describe youth club athletes regarding A secondary objective investigate whether association exists between...

Reductions in objectively measured moderate to vigorous physical activity (MVPA) have been reported among individuals with anterior cruciate ligament reconstruction (ACLR). Self-reported measures of are commonly used assess participation after ACLR despite the lack evidence support validity such within this population.The objective research was determine relationships between MVPA, self-reported activity, and knee function ACLR.University laboratory. Patients (or Other Participants):...

Sport specialization has been associated with overuse injuries and is more common in larger high schools, which are often located urban/suburban settings. However, sport participation characteristics have not compared between suburban rural schools.The purpose of this study was to examine the differences athletes at schools. It hypothesized that school students would be likely highly specialized, participate athletic competitions per year, play a league outside school. We also start playing...

Sport specialization and movement asymmetry have been separately discussed as potential risk factors for lower extremity injury. Early may lead to the development of asymmetries that can predispose an athlete injury, but this has not thoroughly examined.Athletes rated specialized would exhibit greater between-limb anterior reach decreased distance on Y-balance test (YBT) compared with nonspecialized high school athletes, these differences be dependent sex.Cross-sectional study.Level 3.Two...

Objective: To conduct a survey of parents to determine their knowledge sport volume recommendations and examine perceptions toward specialization. Design: Cross-sectional survey. Setting: Youth athletic tournaments, competitions, practices. Patients or Other Participants: Parents (n = 1000, 614 women, age: 44.5 ± 6.7 years) youth athletes completed the had have child between 10 18 years age who participated in organized previous 12 months. Interventions: The was anonymous consisted yes/no...

Quadriceps strength deficits persist for years after anterior cruciate ligament (ACL) reconstruction, and patients with these often shift torque demands away from the knee extensors to hip during functional tasks. However, it is not clear how quadriceps may affect strength. Therefore, purpose of this study was investigate differences in lower extremity individuals ACL reconstruction differing levels asymmetry.Isometric recorded bilaterally 135 participants (73 control 62 unilateral time...

Abstract Post, EG, Trigsted, SM, Schaefer, DA, Cadmus-Bertram, LA, Watson, AM, McGuine, TA, Brooks, MA, and Bell, DR. Knowledge, attitudes, beliefs of youth sports coaches regarding sport volume recommendations specialization. J Strength Cond Res 34(10): 2911–2919, 2020—Overuse injuries in athletes are becoming increasingly common, which may be a result the prevalence year-round specialized participation. Previous research has identified related to months per year, hours week, simultaneous...

After anterior cruciate ligament reconstruction (ACLR), women have a greater risk of incurring second injury and they display different landing movement patterns than men. It remains unclear if clinical movement-assessment tools, such as the Landing Error Scoring System (LESS), can detect sex differences in after ACLR.To compare total LESS scores individual errors between men with history ACLR.Cross-sectional study.Laboratory.A 168 individuals (41 127 women; mean age: = 20 years [range,...

The overhead squat test (OHS) is a functional screening exam that used to identify high-risk movement profiles such as medial knee displacement (MKD). reliability and discriminative ability of observational during the OHS MKD have yet be established.To investigate for OHS.Clinical measurement, cross sectional.100 college students were video-recorded performing OHS. Three certified athletic trainers classified posture each subject on 2 different occasions using guidelines.Ratings evaluated by...

The purpose of this investigation was to determine how exertion and sex affected a variety vertical ground reaction force (VGRF) parameters during jump-landing task, including peak VGRF, VGRF asymmetry, loading rate, rate asymmetry. Additionally, we wanted whether landing mechanics changed after as measured by the Landing Error Scoring System (LESS). Forty recreationally active participants (20 men 20 women) completed jump landings from 30-cm-high box onto plates before repeated bouts an...

Fear of reinjury has been identified as a barrier patients must overcome in order to return sports after ACL reconstruction (ACLR), but may also affect movement patterns during functional tasks. PURPOSE: To compare kinematics and kinetics jump landing between individuals who have undergone ACLR with high, moderate, low fear reinjury. METHODS: An electromagnetic tracking system interfaced non-conductive force plates was used capture joint motion 59 females (age: 18.8±1.4 yr; time from surgery...

High fear of reinjury following ACL reconstruction (ACLR) is related to lower rates return-to-sport (RTS) and altered neuromuscular biomechanical patterns during double-leg landings that increase the risk secondary injury. However, single-leg are observed as an injury mechanism used for RTS decisions ACLR. Whether landing on a single limb in ACLR individuals unknown. PURPOSE: To determine relationship between extremity muscle activation biomechanics with METHODS: Thirty-six females...

Early focus in a single sport at the exclusion of other sports (sport specialization) is theorized to increase risk overuse injuries. New tools have been developed better classify athletes along spectrum specialization. However, prevalence specialization broad sample youth has yet be investigated. PURPOSE:To determine participating summer tournaments. A secondary purpose was investigate by gender, age, and sport. METHODS:Athletes, ages 12-18 (age = 13.8 ± 1.6 years) were recruited sporting...

Following anterior cruciate ligament reconstruction (ACLR), many patients do not return to sport (RTS), despite completion of rehabilitation and passing functional exams such as the single hop for distance (SHD). Fear reinjury is one commonly cited reason lack RTS. ACLR demonstrate altered movement patterns years following successful rehabilitation. However, relationship between fear during common athletic tasks has been investigated but may provide insight into failure PURPOSE: To determine...