The paper presents the possibility of neural network application in order to identify most advantageous design variants column energy absorbers terms achieved absorption indicators. Design absorber made standard thin-walled square aluminium profile with triggers form four identical cylindrical embossments on lateral edges were considered. These differ diameter trigger, its depth and position. g...

Genu varus is one of the malalignment of the lower limbs, the failure to correct it leads to secondary abnormalities in adulthood. The purpose of this study was to investigate the effects of a corrective exercise program on ground reaction forces, loading rates, impulses and free moment during stance phase of walking. 17 children with genu varus were volunteered to participate in this study (Ag...

Abstract Energy absorption devices are widely used to mitigate damage from collisions and impact loads. Due the inherent uncertainty of possible characteristics, passive energy absorbers with fixed mechanical properties not capable serving in versatile application scenarios. Here, we explore a deployable design concept where origami tubes can extend, lock, intended absorb through crushing (buck...

A case of hamate dislocation is presented. This is associated with subluxation of the fourth and fifth metacarpi bones with the hamate in a dorsal direction. No other capital or metacarpus injury was involved. The mechanism of injury was a direct crushing force. A close reduction was attempted successfully with percutaneous K-wire fixation. These were removed after 6 weeks and physiotherapy con...

This study examined the impact of load on lower body performance variables during the hang power clean. Fourteen men performed the hang power clean at loads of 30%, 45%, 65%, and 80% 1RM. Peak force, velocity, power, force at peak power, velocity at peak power, and rate of force development were compared at each load. The greatest peak force occurred at 80% 1RM. Peak force at 30% 1RM was statis...

Previous work has postulated that shoulder pain may be associated with increases in both peak shoulder anterior force and peak shoulder proximal force. Unfortunately these relationships have yet to be quantified. Thus, the purpose of this study was to associate these kinetic values with reported shoulder pain in youth baseball pitchers. Nineteen healthy baseball pitchers participated in this st...