Table 1. Multimodal program for the intervention group.

	Cognitive training	Tai Chi Exercise	Group counseling
Frequency	3 sessions per week	3 sessions per week	1 session per week
Duration	60 min per session	60 min per session	90 min per session
No. of sessions	18	18	6
Training contents	Mnemonic training: generation of mental images, associating items (interactive imagery and sentence generation), and loci method.	The Yang Style 24-form Tai Chi	Aimed to promote subjective well-being through reminiscence on three topics: career, family, and heath. Emphasized the process of reviewing and interpreting positive experiences, and finding a sense of self, and the meaning of life.
	Executive function training: three tablet games designed to train three components of executive function (inhibition, switching, and updating) developed for this study.
Instructor	Trained instructors with a detailed training manual	An experienced Tai Chi instructor and two teaching assistants	A licensed counseling psychologist