This paper discusses recent analyses of the shape of motion spaces for legged robots in quasistatic equilibrium at a given set of contacts. Two robots were examined: HRP2, a biologically inspired humanoid designed by AIST Japan, and ATHLETE, a six-legged, non-biologically inspired robot designed by NASA. Probabilistic roadmap techniques are used to compute the approximate connectivity of severa...

The overhead throwing athlete is an extremely challenging patient in sports medicine. The repetitive microtraumatic stresses imposed on the athlete's shoulder joint complex during the throwing motion constantly place the athlete at risk for injury. Treatment of the overhead athlete requires the understanding of several principles based on the unique physical characteristics of the overhead athl...

Concussion-related cognitive impairments are typically evaluated with repeated neuropsychological assessments where post-injury performances are compared with pre-injury baseline data (baseline method). Many cases of concussions, however, are evaluated in the absence of baseline data by comparing post-injury performances with normative data (normative method). This study aimed to compare the se...

The ability to accurately achieve performance capture of athlete motion during competitive play in near real-time promises to revolutionise not only broadcast sports graphics visualisation and commentary, but also potentially performance analysis, sports medicine, fantasy sports and wagering. In this paper, we present a highly portable, non-intrusive approach for synthesising human athlete moti...

BACKGROUND There has been increased interest in the number of concussions occurring in college football over the past year. In April 2010, the National Collegiate Athletic Association (NCAA) published new guidelines for the diagnosis and treatment of concussions in student athletes. PURPOSE To determine the number of concussions that occurred on 3 collegiate Division I military academy footba...

The present study examined the enduring residual neuropsychological effects of head trauma in college athletes using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), Postconcussion Syndrome Checklist, and the Stroop task. Based on a brief self-report concussion history survey, male and female athletes who participated in ice hockey, field hockey, lacrosse, and/or ...

OBJECTIVE To present the case of surgical treatment and rehabilitation of a midshaft clavicular fracture in a National Collegiate Athletic Association Division I football athlete. BACKGROUND While attempting to catch a pass during practice, the athlete jumped up and then landed on the tip of his shoulder. On-the-field evaluation was inconclusive, with a sideline evaluation diagnosis of clavic...