Browsing by Author "Millán Castro, Aura María"
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Item Estimation of Non-physiological Parameter for Electric Power Generation Using a Conventional Bicycle(Springer, 2020-03-03) Salazar Muñoz, Daniel; Millán Castro, Aura María; Castillo García, Javier FerneyThe need to find new alternative energy sources brings with it the use of unconventional power generation sources such as bicycles and the question arises as to how safe these sources are from the user’s perspective. The present work consists in the estimation of a parameter of easy evaluation, for the safe use of a conventional bicycle in the generation of electrical energy. The generation of energy is achieved by coupling a bicycle to an electric alternator and this to an inverter. The load used was a 100 W lamp. The measurement of non-physiological parameters such as vibration, ambient temperature and pedaling speed as well as certain physiological parameters such as heart rate (HR) and body temperature, were used to determine both physiological and electrical signals when the user is overexerting. A protocol oriented to two routines was defined to evaluate the use of the bicycle in conditions of maximum effort and conditions of safe operation. Eight people between the ages of 22 and 32, body weights from 56 kg to 80 kg and heights from 1.59 m to 1.84 m participated. Voltage and current readings were taken to estimate the power and energy generated by the participants. In the process of user-bike interaction it was found that when the participant over-exerted, he/she resorted to compensatory postural movements to maintain the pedaling speed. These compensatory movements made it possible to observe a relationship between the first derivative of vibration and HR.Item Robohip: Robotic Platform for Hippotherapy in Children with Disabilities(Springer, 2020-03-03) Murillo Penagos, Luis Carlos; Millán Castro, Aura María; Castillo García, Javier FerneyThe problems inherent to the intervention of animals in therapies are associated with risks that imply this interaction and the low capacity to carry out a quantitative assessment. This document aims to offer patients with motor, sensory and cognitive disabilities a different and safe treatment option. The approach to this problem uses a robotic platform divided into three systems, integrating elements for motor, cognitive and sensory rehabilitation: The first emulating the head and neck of the animal; the second emulating movements of rotation and translation of the horse’s back in the three axes (base); the third to calculate the force vector relating the distribution of the child’s weight, performing emulation of temperature ranging from 38 ºC to 42 ºC depending on the speed of work (seat), recording articular angles of the cervical region, thoracic cage, lumbar and hip; The patient is evaluated posturally, in-corporating a set of lights that make it easier to observe to which side the resulting force vector is directed, allowing him to modify his posture and improve his proprioception. The system comprises interaction of commands for the user so that he can develop new psychomotor skills and abilities. The data obtained can serve as indicators for the differential evaluation of each patient, as well as the possibility of monitoring variables such as Temperature, joint angles, and weight.