The Effects of Er Xian Decoction Combined with Baduanjin Exercise on Bone Mineral Density, Lower Limb Balance Function, and Mental Health in Women with Postmenopausal Osteoporosis: A Randomized Controlled Trial

Table 2

Changes in BMD in the three groups at baseline, 8 weeks, and 16 weeks (g/cm³, x ± s), n = 50.

Variable by group	Mean (SE)				From baseline to 16 weeks, mean (95% CI)
	No.	Baseline	8 wk	16 wk	Within-group change	Between-group difference change
Lumbar spine L2−4 (g/cm^3)
EXD	15	0.73 ± 0.01	0.78 ± 0.03	0.82 ± 0.02	0.09 (0.07 to 0.1)^a	NA
BE	17	0.72 ± 0.02	0.67 ± 0.01	0.76 ± 0.01	0.04 (0.03 to 0.05)	NA
EXD + BE	18	0.75 ± 0.01	0.87 ± 0.01	0.98 ± 0.01	0.23 (0.22 to 0.24)^a	NA
EXD vs. BE	NA	NA	NA	NA	NA	0.06 (0.05 to 0.07)
EXD vs. EXD + BE	NA	NA	NA	NA	NA	−0.15 (−0.16 to −0.14)^a
BE vs. EXD + BE	NA	NA	NA	NA	NA	−0.22 (−0.23 to −0.21)^a
Femoral neck (g/cm^3)
EXD	15	0.75 ± 0.01	0.81 ± 0.01	0.85 ± 0.01	0.1 (0.09 to 0.11)^a	NA
BE	17	0.75 ± 0.01	0.77 ± 0.01	0.75 ± 0.01	0 (−0.01 to 0)	NA
EXD + BE	18	0.73 ± 0.01	0.87 ± 0.01	0.97 ± 0.01	0.24 (0.23 to 0.25)^b	NA
EXD vs. BE	NA	NA	NA	NA	NA	0.1 (−0.09 to 0.11)^a
EXD vs. EXD + BE	NA	NA	NA	NA	NA	−0.11 (−0.12 to −0.1)^a
BE vs. EXD + BE	NA	NA	NA	NA	NA	−0.21 (−0.22 to −0.2)^a

Note. BE: BE group; EXD: EXD group; EXD + BE: EXD combined with BE; LS: lumbar spine L2–4; FN: femoral neck; NA: not applicable. a: , b: .