The normal human running has been simulated by two-dimensional biped model with 7 segments. Series of normal running experiments were performed and data of ground reaction forces measured by force plate was analyzed and was fitted to some Fourier series. The model is capable to simulate running for different ages and weights at different running speeds. A proportional derivative control algorit...

This paper is the second part of a study on biomechanical and functional properties of prosthetic feet. The first part dealt with a biomechanical analysis related to user benefits. This part deals with subjective ratings and deciding factors for trans-tibia] amputees using 2 energy storing feet (ESF) and 2 conventional feet (CF). The Otto Bock Dynamic Pro and Hanger Quantum feet were used as ES...

Objectives: Multiple limb amputations are an uncommon complication from inotrope-induced peripheral gangrene. Case Presentation: A 20-year-old lady with valvular heart disease had septic shock secondary to infective endocarditis and required prolonged cardiopulmonary resuscitation. Despite aggressive fluid resuscitation, the patient triple strength intravenous noradrenaline maintain hemodynamic...

The purpose of any limb prosthesis is to replace, to the reasonable satisfaction of the wearer, as much as possible of the normal form and function lost through amputation. To provide a suitable prosthesis in any particular case, therefore, the several cooperating professional persons—physicians, prosthetists, therapists, others as appropriate—must have an intimate knowledge of just what losses...

The biological ankle joint adjusts stiffness to adapt changing walking speed, terrain, and load carriage. most commonly used passive transtibial prostheses are unable adjust device therefore do not maximize potential energy storage peak prosthesis power across speeds. We present a quasi-passive variable ankle–foot with discrete adjustment from 352 479 Nm/radian, corresponding the range of quasi...

Lower-limb prostheses are designed based on observations of how users on average respond to different design features. Prostheses are then marketed on the basis that certain features are appropriate for certain types of individuals, with few options for user customization. This process is unlikely to provide individual users with devices that best suit their needs since it is unclear how to bes...

Individuals with below knee amputation exert more effort during walking than their able-bodied counterparts [1]. This increased effort may partially be due to increased balancerelated effort, especially while walking on challenging terrain [2]. Recently, we found that balance-related effort can be reduced by modulating ankle push-off work with a robotic ankle-foot prosthesis [3]. In doing so, w...

INTRODUCTION This study aims to evaluate the predictive factors affecting the clinical outcome of Below Knee Amputations (BKA) performed in diabetic foot patients admitted to National University Hospital (NUH) Multi-Disciplinary Diabetic Foot Team. MATERIALS AND METHODS This is a prospective cohort study of 151 patients admitted to the Department of Orthopaedic Surgery, NUH, for Diabetic Foot...

We previously developed an ankle-foot prosthesis emulator with exceptional versatility [1]. It is lightweight, capable of producing large torque and power, and can quickly change behaviors [2]. However, it cannot fully address the needs of trans-femoral amputees. In the commercial market there are many active knees such as the Ottobock C-leg and Össur Power Knee. These are successful products, ...