The Hybrid III 50th percentile male anthropomorphic test device (ATD) is the most widely used human impact testing surrogate and has historically been used in automotive or military testing. More recently, this ATD is finding use in applications evaluating athletic helmet protectivity, quantifying head impact dosage and estimating injury risk. But ATD head-neck response has not been quantified ...

This case report illustratesa theory of a mechanism of injury for anterior cruciate ligament (ACL) tears. Studies show ACL injuries can occur with maximal quadriceps muscle contraction. When the timing of the foot plant is miscalculated and is a split second later than planned, the exaggerated muscle contractions cause the tibia to shift more anterior than what would have occurred had the foot ...

This study analysed the impact of turning rate, centre mass height, and road adhesion coefficient on rollover stability heavy-duty automated guided vehicles (AGVs) using a multi-body dynamics simulation model. The lateral deflection angle was used as metric to evaluate behaviour AGVs, results were obtained quantitatively. findings showed that rate had largest AGV stability, followed by while le...

A new mechanical leg has been designed and developed for use in impact tests simulating pedestrian accidents. The leg has been developed to be part of a new, 50th percentile male pedestrian dummy called Polar. The leg incorporates a knee that has the essential anthropomorphic features of a 50th percentile male knee and a deformable tibia. The leg has been designed to be biofidelic under lateral...

Simple energy considerations suggest that any fall from standing height has the potential to cause hip fracture. However, only 1-2% of falls among the elderly actually result in hip fracture, and less than 10% cause serious injury. This suggests that highly effective movement strategies exist for preventing injury during a fall. To determine the nature of these, we measured body segment movemen...

Recent years have been characterized by an ongoing increase in knowledge about the different conditions associated with lateral patellar instability. This increase in knowledge provides differentiated approaches to the various pathologies of the patellofemoral joint. Though current guidelines consider medial patellofemoral ligament (MPFL) reconstruction the basic treatment for the unstable pate...

Neurons in the primary visual cortex receive subliminal information originating from the periphery of their receptive fields (RF) through a variety of cortical connections. In the cat primary visual cortex, long-range horizontal axons have been reported to preferentially bind to distant columns of similar orientation preferences, whereas feedback connections from higher visual areas provide a m...

BACKGROUND The impact of preoperative neck ultrasound (US) on management of the lateral neck in patients with differentiated thyroid cancer is unclear. The objective of this study was to assess the impact of preoperative neck US on the rate of lateral neck dissection in clinical N0 neck and initial response to therapy. METHODS An institutional review board-approved retrospective review of 890...