Physical activity to reduce the burden of frailty after menopause: effectiveness and adherence rate of a resource saving exercise plan.

Objective: Frailty may be increased by menopause. Physical activity has been proposed to reduce frailty, but poor adherence and cost limit effectiveness. We aimed to investigate both the effectiveness against the frailty burden and the adherence rate of a multicomponent physical activity scheme partially managed by the participating women themselves.

Methods: Prospective controlled study consisting of a twice-weekly group physical activity scheme divided into two consecutive periods, one supervised by a health professional (12 wk) and the other supervised by the women themselves (36 wk). Group cohesion and mutual support during the patient-only period were aided by social networking via smartphones. Community-dwelling postmenopausal women were divided into a physical activity group (PAG = 126) and a usual activity control group (UAG = 126), both assessed at baseline and at the end of the study. Participants self-assigned to one of the two study arms.

Results: Overall, women in the PAG were more likely to improve their frailty status (60.2% vs 42.6%, P < 0.05). The frailty reversal rate from prefrail to robust was significantly higher in the PAG than in the UAG (34.04 vs 8.00%, P < 0.05). Logistic regression confirmed that women in the PAG were more likely to improve their frailty phenotype (odds ratio [OR], 9.12; 95% confidence interval [CI], 3.45-31.52; P < 0.001). Adherence, defined by participants attending 75% of sessions, was attained by 56.35% of women at 48 wk.

Conclusion: A physical activity scheme implemented to improve frailty proved effective and attained acceptable adherence. Conditions in the peer-supervised 36-wk phase may increase sustainability.