Tai chi shows measurable gains for postmenopausal bone density

Bone mineral density falls after menopause as oestrogen declines, raising fracture risk, and exercise is one of the few non-drug tools known to influence bone. Traditional Chinese practices such as Taijiquan, Baduanjin, Wuqinxi, Yijinjing and Liuzijue are gentle, low-impact and popular with older adults, but whether such soft movement can genuinely move bone density has been unclear. Comparing five practices, alone and combined with drug therapy, across every available trial answers a question that individual studies cannot. For postmenopausal women weighing their options, the ranking matters as much as the yes-or-no.

The researchers followed PRISMA guidelines and the Cochrane PICOS framework, searching eleven databases including Web of Science, Scopus, EMBASE, PubMed and the Cochrane Library for randomised controlled trials published before September 2023. Thirty-three trials covering 3658 postmenopausal women were included, with study quality assessed against ROB2 and GRADE criteria. A network meta-analysis then compared five traditional Chinese fitness exercises, alone and combined with drug therapy, on bone mineral density measured at the lumbar spine, the femoral neck and Ward's triangle, ranking the options by probability of being most effective.

Taiji and Yijinjing were significantly superior to conventional rehabilitation for lumbar spine bone density. For the femoral neck, Baduanjin and Taiji outperformed conventional rehabilitation, and Taiji also came out ahead at Ward's triangle, a region of the hip. In the probability rankings, combinations with medication dominated: Baduanjin plus drugs ranked best for lumbar and femoral neck density, and Taiji plus drugs for Ward's triangle. Among the exercises alone, Taiji ranked highest for the lumbar spine and Ward's triangle, while Baduanjin led at the femoral neck.

This extends the evidence that mechanical loading through exercise supports bone into decidedly gentle territory, since these practices involve no jumping or heavy lifting. The consistent direction across 33 trials is encouraging, and the finding that exercise plus medication ranked above either alone fits the wider treatment literature. But the authors are explicit that small sample sizes and limited numbers of studies behind individual comparisons mean the conclusions are not definitive. Larger, higher-quality trials are needed before the rankings between practices can be trusted in detail.

For women past menopause thinking about bone health, this is a reason to take practices like tai chi seriously as more than relaxation: the pooled trials found measurable bone density benefits at the spine and hip. It also suggests such exercise and prescribed bone medication are complements rather than rivals, since the combinations ranked best. The precise league table between Taiji, Baduanjin and the others is the least certain part. The broad signal, that gentle regular practice can support postmenopausal bone, is the part worth keeping.