Monitoring the Walking Pattern of Lower Limb Prosthetic Users Using Mobile Accelerometer Apps
Physical activities are any movement that required muscles to work and consequently use more energy as compared to resting. Physical activities are the best parameter in determining a person health. This is especially important for the health of lower lim
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Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Malaysia 2 Centre for Innovation in Medical Engineering, University of Malaya, Malaysia
Abstract— Physical activities are any movement that required muscles to work and consequently use more energy as compared to resting. Physical activities are the best parameter in determining a person health. This is especially important for the health of lower limb prosthetic users who are in progress of restoring their walking and standing ability by wearing the prosthetic leg. The objective of this study is to develop an accelerometer apps that can identify the walking pattern of lower limb prosthetic users. The Smartphone accelerometer application function is to detect and to collect acceleration data while user’s performing physical activities such as walking on flat surface. As a results an accelerometer application on android smartphone has been developed. The magnitude of acceleration data from the accelerometer are used to identify three participants; normal, transtibial and transfemoral prosthetic users walking patterns. Keywords— Accelerometer apps, Prosthetic user
I.
INTRODUCTION
Physical activities are any movement that use our body muscle to work and use more energy as compared to resting. Example of physical activities are walking, standing, and any movements that use muscle to work. Physical activities have different level that determine whether ones have a vigorous or moderate lifestyle and are the best parameter for determining health. A lifestyle with adequate or active physical activities translates a healthy lifestyle [1]. Amputation is a process of removing limb or body part as a treatment or preventative method to avoid more severe disease to occur. Amputee is a person who had lost one or more of his or her limb and has undergone amputation surgery. There is also congenital case of amputated limb which occur since born. There are several levels of amputation which cover upper limb and lower limb. Upper extremities amputations have several part which are below elbow and above elbow amputation. For lower extremities, amputations are divided into below knee amputation and above knee amputation. There are specific names of the amputation according to the location of the bone or joint that is amputated [2]. Subjects with amputation show disorders in blood circulation and metabolism, reduced
physical functioning capacity, and reduced tolerance capability [3]. In medical field, acceleration have become an important parameter to assess patient health condition through their activities. The acceleration measured can determine patient physical health condition to diagnose or improve the rehabilitation treatment of the patient. Accelerometer is one of the best tools to detect the physical activity level of human form sedentary to vigorous level of activities. Accurate and precise data of the accelerometer is also the reasons it is the best tools to measure the acceleration of physical activities. Accelerometer is a device that me
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