人類隨著年紀越大病痛越來越多，若能將科技與醫療保健結合，藉由多媒體學習教學養成運動習慣，以協助老人了解自己的健康狀況，並保持良好的體能。本研究旨在開發一套針對老人功能性體適能行動應用程式（Mobile application，APP），經由文獻收集老人使用者介面設計的要點，訪談專家和使用者獲取改進意見後完成行動應用程式製作。此行動應用程式除了以3D動畫教學示範老人體適能運動，並能記錄運動日期次數外，經由對比體適能常模的功能，老人可了解自己體適能不及格的地方，並依照行動應用程式給予的處方籤來運動，以強化自我體能不足之處。本研究以高雄市某社區活動中心的30位65－85歲的老人為測試對象，以QUIS使用者互動滿意度量表及訪談進行檢測。研究結果發現：受測者無論是在「操作整體反應」、「畫面呈現」、「介面遣詞與介面資訊」、「學習」等四個項目滿意度皆高於中位數。在不同性別在各項目檢測上無顯著差異，不同年齡區間65－70歲者與80歲以上者在學習項目上有顯著差異。手機使用時間3年以上者與1年以下者在操作整體反應、畫面呈現、學習等三個項目上有顯著差異。訪談結果老人們給予多媒體教材很高的評價，並認為使用此行動應用程式練習體適能運動是有趣的。本研究提出老人體適能APP設計的建議，作為將來設計師或使用者參考之用。

Humans suffer more and more diseases as they get older in a modern society. If technology can be combined with medical care, and exercise habits can be developed through multimedia learning and teaching, it can help the elderly understand their own health conditions and maintain good physical fitness. Therefore, this research aims to develop a multimedia functional fitness mobile application(APP) for the elderly, collect the key points of the elderly user interface design through the literature, and complete the functional fitness mobile application after interviews users and experts to obtain improvement opinions. This mobile application uses 3D animation to demonstrate the physical fitness of the elderly and records the number and date of exercises. By comparing the functions of the normal physical fitness model database, the elderly can understand where their physical fitness fails and exercise according to the prescription given by the mobile application to strengthen self-physical deficiencies. This study used 30 65-85-year-olds elders at a community center in Kaohsiung as the test subjects, and the QUIS User Interaction Satisfaction Scale and interviews were used for the experiment. The results found that the subjects' satisfaction levels were higher than the median in aspects of ＂overall response to operation＂, ＂screen presentation＂, ＂interface wording and interface information＂, and ＂learning＂. However, there was no significant difference in the test of different genders in each aspect. There were significant differences in learning items between people 65-70 years old and people over 80 years old in different age ranges. There were significant differences between those who had used smartphones for more than 3 years and those who had been less than 1 year in learning aspect. The elderly gave a high evaluation of the multimedia teaching materials in results of the interview and thought it was fun to use this mobile application to practice physical fitness exercises. This study puts forward suggestions of future design reference for the design of the elderly physical fitness APP.