PURPOSE This study tests if running economy differs in minimal shoes versus standard running shoes with cushioned elevated heels and arch supports and in forefoot versus rearfoot strike gaits. METHODS We measured the cost of transport (mL O(2)·kg(-1)·m(-1)) in subjects who habitually run in minimal shoes or barefoot while they were running at 3.0 m·s(-1) on a treadmill during forefoot and rea...

BACKGROUND Excessive shoe heel abrasion is of concern to patients and shoe manufacturers, but little scientific information is available about this feature and its possible causes. The purpose of this study was to relate this phenomenon with biomechanical factors that could predispose to shoe heel abrasion. METHODS Ninety-seven recruits (median age 25) were enrolled in this study. Shoe abrasi...

background: medical shoes are a solution for the construction and performance related to foot problems. people with healthy feet do not require medical shoes. shoes have different designs and heights and are probably produced with different materials depending on the nature of the required correction. ordering medical shoes, like medicine, is personal for each individual. however, today many co...

Methods and material Twenty-four participants (mean age 21.8 yrs ± 3.5 yrs, height 1.75 m ± 0.09 m and body mass 71.0 kg ± 10.6 kg) were recruited. A marker set consisting of 20 x 10 mm markers was developed to track in-shoe joint kinematics [1]. Reliability and accuracy estimates of calibration marker placement on the shoe were determined. To track inshoe foot motion, 12 mm diameter holes were...

History/Symptoms-Clinical exam features-Gait parameters-Radiographic features-Surgical technique-Evidence I. PATHOANATOMY-CLINICAL FEATURES: This is primarily a stance phase problem a. EQUINUS CONTRACTURE at the ankle because of a gastro-soleus contracture. b. Initial contact: mid foot or forefoot c. Collapse of the medial arch: i. Talus is in equinus, talo-navicular joint is subluxed ii. Os Ca...

A method has been developed for growing Physarum polycephalum plasmodia that are 8 to 10 times larger than those obtained in the petri dish cultures used by Nygaard, Guttes, and Rusch. In the large-scale procedure, plasmodia were grown in metal trays on a membrane supported by filter paper on stainless-steel screen. Plasmodia were started from a ring of inoculum to allow inward and outward migr...

Background Various sizes of implants need to be available during surgery. The purpose of this paper is to compare body height and shoe size with implant sizes in patients who underwent total knee replacement surgery to see which biomarker is a better predictor for preoperative planning to determine implant size. Methods A total of 100 knees, belonging to 50 females and 50 males, were observed...

Abstract Raising the maximum valve lift in two-stroke drive mode is key to increasing power output of variable-stroke engine, so limit design train device critical. The multi-objective genetic optimization algorithm NSGA-2 was coupled with single-freedom dynamics model device. A rapid program for constructed Matlab. Two methods explored mode. first optimize rocker structure, and second cam posi...

The aim was to determine the rotational torque occurring at the shoe-natural grass interface during golf swing performance with different clubs, and to determine the influence of handicap and golf shoe design. Twenty-four golfers (8 low 0-7; 8 medium 8-14; and 8 high 15+) performed 5 shots with a driver, 3-iron and 7-iron when 3 shoes were worn: a modern 8 mm metal 7-spike shoe, an alternative ...