Table 2.

The similarities and differences between simplified Tai Chi exercise (TCRT) and traditional Tai Chi (TTC).

Variables	Name of Tai Chi routine
	TCRT	TTC
Origin	It was developed by a Qigong master at Shanghai Sport University in a recent year, simplified resistance Tai Chi	It was created by Chinese martial artists and has a history of more than 100 years, Traditional Yang Style 85-form Tai Chi.
Number of moves	32	85
Element of routine	Movements focus on weight shift, muscle stretching, cultivating internal energy, and fall-prevention training. In particular, pushing hands as a key element is added in which two practitioners place their dominant hands together and apply their force or action to make the opponent lose balance.	Hand movements are characterized by circulation, spiral, slowness, smoothness. low limbs are involved with weight-shift training while maintaining core stability.
Duration of routine	28 min, 30 seconds	28 min, 16 seconds
Exercise intensity	Moderate	Moderate
Strengths and Weaknesses	Relatively short routine is suitable for older adults due to age-related memory decline. Practitioners can carry out home-based practice, instructed by watching a video. Pushing hand provides practitioners with the opportunity to socialize with each other.	Lengthy routine is a challenge for older adults. Additionally, complex moves not only require supervised practice, but also could discourage novice practitioners (discontinue Tai Chi training).