Youth sport specialization associated with poorer lower extremity function & pain as young adults.

Objective: Examine the link between youth sports specialization and long-term lower extremity joint health after sports by comparing lower extremity function, pain, and history of sport-related injuries between young adults that were highly, moderately, and low specialized in youth sports.

Methods: We used a cross-sectional design, and all data was collected using an electronic survey. Our sample included N = 356 young adults who participated in a primary sport during youth and high school sports but were no longer participating in that sport as a young adult.

The effect of fatigue on landing biomechanics in single-leg drop landings.

Objective: To examine the effects of fatigue on landing biomechanics in single-leg drop landings.

Design: Quasi-experimental.

Setting: Controlled research laboratory.

Evidence for the Factorial and Construct Validity of a Self-Report Concussion Symptoms Scale.

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 the HIS with Pearson product moment correlation analyses. Using an experimental design, we compared scores on the HIS between concussed and nonconcussed groups with a 2 (groups) x 5 (time) mixed-model analysis of variance.

A Survey of Practice Patterns in Concussion Assessment and Management.

OBJECTIVES: To identify methods used by athletic trainers to assess concussions and the use of that information to assist in return-to-play decisions and to determine athletic trainers' familiarity with new standardized methods of concussion assessment. DESIGN AND SETTING: A 21-item questionnaire was distributed to attendees of a minicourse at the 1999 National Athletic Trainers' Association Annual Meeting and Clinical Symposia entitled "Use of Standardized Assessment of Concussion (SAC) in the Immediate Sideline Evaluation of Injured Athletes." SUBJECTS: A total of 339 valid surveys were returned by the attendees of the minicourse.

Evaluation of neuropsychological domain scores and postural stability following cerebral concussion in sports.

Context: With increasing knowledge and research about concussion, there have been few objective studies that have used neuropsychological domain scores and postural stability to assess concussion.

Objective: To evaluate the recovery curve of athletes who incur sport-related concussion from repeated serial testing of neuropsychological and posturography testing.

Design: A prospective epidemiological model was used for the course of the study.