隨著人口逐漸邁向高齡化社會，越來越多中高齡人口會遇到膝關節退化問題抑或是腳力逐漸衰退的問題，嚴重一點甚至會罹患膝關節炎，因此本研究透過力學分析，設計一款利用3D積層列印原理所打造具有緩衝儲能特性之鞋底模組，預期令中高齡人口能在一定程度上獲得較舒緩的感受，甚至是減緩疼痛等效果。

本研究之緩衝模組因採用3D列印的製程，可以在相對短的時間內進行快速打樣評估，並且透過結構改良，使緩衝模組本身具有一定程度的非線性特性，使踩踏初期可減少衝擊力，並在下壓後期透過模組的變形獲得較多的儲能，使得跨出下一步更加輕鬆、省力。

本研究使用有限元素分析法進行模擬分析，透過桁架結構的參數調整，以求得極佳之儲能且不致損毀之鞋底模組。模擬結果顯示，本研究設計出的緩衝模組，具備良好緩衝性能(初始剛性為120 N/mm)，可儲存58%之步行落差位能。

As the population ages, many seniors would face health issue stemming from Osteoarthritis (OA) or foot strength deterioration, more severe cases like Osteoarthritis (OA) is also not uncommon. This research aims to design a module for shoes which have cushioning and energy-storing by using 3D additive manufacturing with static structural analysis. The desired result is to provide elderly people comfort and even pain relief.

Because the module is made by using 3D printing, it can be rapidly prototyped and evaluated. Through improvements in its structure, the module has a certain degree of non-linear characteristics, which in turns help the senior with the motion of walking. As the foot presses on the shoe, the impact is dampened, then as the entire weight is put on the shoe, the energy-storing design would store energy by deforming the module, helping with the next step forward.

In this research, the parameters of the truss structure were adjusted through simulation using finite element analysis, and the parameters of the 3D printing material used in this research were substituted to find a reasonable physical property and less damageable shoe sole module. In this research, the cushion module with good cushioning (initial stiffness less than 200 N/mm) was actually designed, and the simulation results showed that it could store 58% of the walking energy.

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