[Retracted] Effect of Core Muscle Strength Training Combined with Taijiquan on Bone Mineral Density Measured by Quantitative CT Scanning in the Elderly

Table 2

Changes of lumbar spine (L1-4) BMD of subjects in each group before and after exercise.

Group		Before exercise	Exercise for 3 months	Exercise for 6 months	value	value
Core muscle strength + Taijiquan group	50				24.187	<0.01
Taijiquan group	50				4.931	<0.05
Core muscle strength training group	47				3.150	<0.05
Control group	45				0	>0.05
value		0.086	0.276	8.524
value		>0.05	>0.05	<0.01