114 research outputs found

    Analysis on the effect of stimulator parameters in electrical stimulation procedure on the human bicep muscle

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    amplitude, pulse shape and frequency. The detection of muscle fatigue will be monitored as force where the force sensitive resistor (FSR) sensors are used to detect the variations of the force exerted by the muscle. In this work, it is assumed that the fatigue in muscle will happen when the force recorded reduces to 60% from its initial force over the stimulation period. The experiment results proof that the stimulator parameters, amplitude, pulse shape and frequency, have different effect to the upper limb muscle with respect to muscle fatigue. The results also show that the exponential waveform can be considered in future rehabilitation program since the onset of muscle fatigue is delayed later in the experiment when compared to the other signals. This allows extended training duration among stroke patients to benefit from the recovery window time frame especially for patients who are still in their early recovering stage

    The effect of electrical stimulation in improving muscle tone (Clinical)

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    Electrical stimulation (ES) and also known as neuromuscular electrical stimulation (NMES) and transcutaneous electrical stimulation (TES) involves the use of electrical current to stimulate the nerves or nerve endings that innervate muscle beneath the skin. Electrical stimulation may be applied superficially on the skin (transcutaneously) or directly into a muscle or muscles (intramuscularly) for the primary purpose of enhancing muscle function. The basic theoretical premise is that if the peripheral nerve can be stimulated, the resulting excitation impulse will be transmitted along the nerve to the motor endplates in the muscle, producing a muscle contraction. In this work, the effect of mere electrical stimulation to the muscle bulk and strength are tested. This paper explains how electrical stimulation can affect the muscle bulk, muscle size, muscle tone, muscle atrophy and muscle strength. The experiment and data collection are performed on 5 subjects and the results obtained are analyzed. This research aims to understand the full potential of electrical stimulation and identifying its possible benefits or disadvantages to the muscle properties. The results indicated that electrical stimulation alone able to improve muscle properties but with certain limits and precautions which might be useful in rehabilitation programme

    MMU Cybertron from Multimedia University Cyberjaya

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    The theme for ROBOCON 2019 is Great Urtuu-Sharing the Knowledge. In participating in this competition, we are to design and construct two robots named the Messenger Robot 1 (MR1) and the Messenger Robot 2 (MR2). The MR1 robot will have three working omniwheels as its locomotion system, a short gripper supported by a short pole to hold the the Gerege and pick-up mechanism with a throwing mechanism in between. The MR2 robot consists of four mechanical legs attached to four motors. There is alos a small container fixed onto the body of the MR2 to hold the Gerege. Both robots must follow a stringent set of rules regarding the dimension, weight and other aspects

    Energy harvesting for back-up power supply using speed humps

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    Renewable energy is becoming a prosperous industry with numerous researchers focusing and exploring new and effective ways to harness the power from means available on spot. This paper presents a new proposed mechanism for harnessing from vehicles passing over ramps energy destined of going into waste if not harvested. It is kinetic energy used for generating electricity. Unlike the many other designs for power generation, this paper sheds light on the idea of the rotational conversion-using flywheel and gear mechanism used underneath the road surface at the point of road where a speed-breaker is raised. The linear motion of a rack is converted into rotational motion applied by the oncoming vehicular load. The system is described in terms of the dimensions of the rack and pinion and the number of teeth on the gears. The pulley structure is geared such it is ultimately making a generator to rotate for producing an output voltage. The output voltage is of variable nature depending on the traffic flow. The system is described on assumption of single vehicle passing by over a time interval of hence producing a power output as the vehicle is inputting a certain amount of energy in a given time interval. The analysis of the system is in terms of the related equations
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