目的： 本研究旨在開發一種無人機引導系統，以協助老年人進行安全有效的運動(例如：八段錦)，並研究不同的引導策略在進行八段錦運動時對人體運動生物力學的影響。
設計：觀察性研究。
受試者：12位年齡高於60歲的健康人。
介入： 用於引導八段錦運動中兩個選定動作的音頻、視頻和無人機引導系統。
方法： 分別使用動作捕捉系統和測力板觀察每位受試者跟隨不同引導系統執行八段錦中兩個選定動作的運動學和力量數據。實驗結束後，每位受試者都需要完成一份問卷，以評估他們的感受和動機，並了解他們對特別是無人機引導這種新興的運動介入引導系統的回饋。
結果: 這項研究的主要結果是評估無人機引導系統之準確性和精確度。次要結果是比較所提出的系統與傳統引導系統對人體生物力學參數的效果，傳統引導系統為音頻和視頻引導下進行的八段錦運動，而人體生物力學參數包含壓力中心 (COP) 和手臂運動的流暢性。此外，在整個調查問卷中測量了參與者對無人機引導系統的動機和反饋。
結論：結果顯示無人機引導系統有效且可靠，而受試者樂於使用無人機進行八段錦運動。通過此系統，受試者為了在整個運動過程中保持身體的平衡，壓力中心更加地分散在測力板上。另外，由於更專注於跟隨無人機，受試者手臂運動的流暢性優於其他引導系統。這些結果表明參與者可以在運動的某些階段比其他兩項引導系統更好地跟隨和專注於無人機的引導。

Objective: This study aims to develop a drone-guiding system to support the elderly in practicing a safe and effective exercise like Baduanjin, also to investigate the effects of different guiding strategies using the developed system on biomechanics and motor control of human movement while performing Baduanjin exercise.
Design: Observational Study.
Participants: 12 healthy individuals with age above 60 years old.
Intervention: Audio, video, and drone-guiding system for guiding two selected movements of Baduanjin exercise.
Methods: A motion capture system and force platforms were used to record kinematic data, and force data, respectively, of each participant while performing two selected movement of Baduanjin with following each guiding program. A questionnaire is required for every participant after the experiment to evaluate their feeling and motivation, also explore their feedbacks especially onto the drone-guiding system, which is a new technology of exercising guidance platform.
Main Outcome Measures: The primary outcome of this study was evaluated by conducting accuracy and precision testing of the drone-guiding system. The secondary outcome was measured by figuring out the effectiveness of using the developed system compares with conventional guiding cues, which are audio and video illustration of Baduanjin exercise on functional performance parameters, the center of pressure (COP) and smoothness of arm movement. In addition, motivation, and feedbacks of participants toward the drone-guiding system were measured throughout a questionnaire.
Results: The results showed that the drone-guiding system could work properly with validity and reliability, and the participants were pleasant to perform Baduanjin exercise with the drone. Besides, with this system, the participants could to be able to follow and focus on the guidance of the drone better than other two guiding cues in some phases of the movement. This can be implied to more broad distribution in center of pressure on force platforms in order to maintain the balance of their body throughout the entire movement. In addition, the value in smoothness parameters of their arm movement were lower than the other guidance due to more concentration in following the drone.

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