1Tribological Assessment on Accelerated Aging Bones in Polymeric Condition
Ramdziah M. Nasir Law C. Gan and Abdul Y. Saad
University of Science, Malaysia, School of Mechanical Engineering, Engineering Campus, Nibong Tebal, 13400, Penang, Malaysia
1.1 Introduction
The global trends of doctor‐diagnosed arthritis and osteoporosis show a dramatic increase. According to a statistical survey by the Centers for Disease Control and Prevention (CDC), the percentage of adults suffering this disease has gradually increased for both women and men, especially the aged, as shown in Figures 1.1 and 1.2 [1]. Lack of exercise in daily life, obesity, and family‐inherited genetic problems are the main causes of the disease.
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