'Endpoint error' describes the erratic behavior at the beginning and end of the computed acceleration data which is commonly observed after smoothing and differentiating raw displacement data. To evaluate endpoint error produced by four popular smoothing and differentiating techniques, Lanshammar's (1982, J. Biomechanics 15, 99-105) modification of the Pezzack et al. (1977, J. Biomechanics, 10,...

Given an input array of n real numbers, sorting with padding consists in writing those numbers in order in an array of size (1 +)n, thus leaving n entries empty. Only comparisons are allowed between the numbers to be sorted. We describe an algorithm that, with nk processors in the CRCW PRAM model, sorts the input array with padding o(1) using time O(log k n log (log k n) + loglog k). This impro...

Padded socks to protect the at-risk diabetic foot have been available for a number of years. However, the evidence base to support their use is not well known. We aimed to undertake a systematic review of padded socks for people with diabetes. Additionally, a narrative analysis of knitted stitch structures, yarn and fibres used together with the proposed benefits fibre properties may add to the...

the wound may be the strapping is omitted so as to allow ready access to it. An ordinary extension stirrup is applied to the leg and the foot-piece of the stirrup is fastened to a weight by means of a string passing over an ordinary reel acting as a pulley fixed in the vertical foot-piece of the splint. The thigh rests in the padded notch of the buttock-piece and the ischial tuberosity is broug...

Local pressure, developed between the socket of a prosthetic device and the accompanying body segment, reflects such matters as comfort, stability, and proprioceptive sense . Recent interest in these areas has led to the development of a number of devices to measure pressure . Most such devices, intended for clinical use (temporary mounting in the finished prosthesis) , necessarily protrude fro...

Pressure measurements were made at four sites on the right foot of six normal subjects while they walked in a standard shoe, conventional padded cast, total contact cast, and again in a shoe. No differences in mean relative pressure were found between the padded cast and the total-contact cast. Significant reductions in mean relative pressure were found between the standard shoe and walking cas...

We describe three patients who developed meralgia paraesthetica after the use of a well-padded and carefully-placed patient-positioning device in total hip replacement.