Table 7.

The effect size of the physical performance at different periods

Period	6-m gait speed			TUGT			FTSST			Static balance			Dynamic balance
	TC	WBV	Con	TC	WBV	Con	TC	WBV	Con	TC	WBV	Con	TC	WBV	Con
0–4 weeks	0.79b	0.41	0.02	0.55b	0.20	0.09	0.54b	0.44	0.09	0.98a	0.31	0.02	0.60b	0.21	0.08
0–8 weeks	1.11a	0.99a	0.06	0.80b	0.51b	0.07	0.81a	0.74b	0.29	1.11a	0.89a	0.26	0.94a	0.81a	0.14
4–8 weeks	0.57b	0.42	0.04	0.45	0.27	0.03	0.22	0.27	0.17	0.24	0.60b	0.22	0.27	0.56b	0.06

The differences in the effect size using Cohen’s d for all outcomes

TC the Tai Chi group, WBV whole-body vibration group, CON the control group, TUGT the timed-up-and-go test, FTSST the five-times-sit-to-stand test

^aThe effect size larger than 0.80, ^bthe effect size larger than 0.50