老年人运动后感知用力程度：AI伴侣与真人伴侣的比较

Background/Objectives: Maintaining physical activity is important for functional independence in older adults. Perceived exertion may affect their exercise experience and participation. Social companionship may alleviate perceived exertion, and artificial intelligence (AI) offers a new form of companionship. This study aimed to compare human and AI companionship on post-exercise perceived exertion and examine the relationships among AI acceptance, social presence, and perceived exertion. Methods: Ninety-four older adults were randomly assigned to four conditions: no companionship, human compan