Instantaneous Segmental Energy Symmetry Index as Gait Compensation Indicator in Asymmetrical Walking

Abstract

Understanding the energy expenditure of human loco motion has been an area of great interest in gait analysis [1]. Energy expenditure can be determined either by quantifying the metabolic or mechanical energetic cost. The first o ne is the most direct approach. It is derived fro m the prediction of metabolic function of the body th rough proxies such as the body demand for adenosine triphosphate (ATP) during an activ ity, wh ich is reflected in the change in volumetric rate of oxygen consumption. The rate of o xygen consumption signifies the rate of cellu lar respiration, which is directly proportional to the intensity of the activity [1]. However, th is method only measures how much energy is expended by