Change in Head Impact Exposure following Return-to-Sport in Concussed Football Athletes.

Purpose: Following sport-related concussions, early head impact exposure and premature return-to-sport are known to increase risk of repeat concussion in football athletes, yet athletes' true post-injury head impact exposure profiles (i.e., characteristics of recorded head impacts over a given time period) and biomechanical progression have not been explored.

Qualitative Evaluation of Incorporating Ultrasound Education Into an Undergraduate Medical Education Clinical Human Anatomy Course.

Introduction: Ultrasound use as a procedural guide and diagnostic tool has led many to herald it as the "new stethoscope." Thus, medical schools are seeking to integrate ultrasound training into their longitudinal curricula. While various methods have been trialed, incorporating ultrasound into basic science courses as a supplementary learning tool often offers students their first exposure.

Babesiosis: An Atypical Cause of Respiratory Failure.

Babesiosis is a parasitic infection of the protozoa, which has been increasing in incidence in endemic areas of the United States. Symptoms of babesiosis can occur on a wide spectrum, from a mild flu-like illness to a fulminant disease course. Known complications of severe cases include intravascular hemolytic anemia and may involve the coagulation system, heart, spleen, kidneys, and in some cases, the lungs.

Interfibrillar shear behavior is altered in aging tendon fascicles.

Tendon elongation involves both stretching and sliding between adjacent fascicles and fibers. Hence, age-related changes in tendon matrix properties may alter sliding behavior and thereby affect injury thresholds. The objective of this study was to investigate the effects of age on interfibrillar shear behavior in partial cut tendon fascicles.