European geriatric medicine · 2026
Effect of bodyweight interval training on frailty status in older adults: a randomized controlled trial.
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Vieira Lucas Marques, Bocalini Danilo Sales, Dos Santos Clarcson Plácido Conceição, Rego Leandro Brasil, Villar Rodrigo, Júnior Aylton José Figueira, da Silva Rodrigo Chaves, de Souza Lima Ana Paula, Netto Ruy Barbosa Martins Calheiros, Neto Felício Savioli, Nonato Taina Costa, Pinto João Paulo, Júnior Francisco Luciano Pontes
Аннотация
PURPOSE: To evaluate the effect of bodyweight interval training on frailty status in older adults.
METHODS: A randomized controlled trial was conducted with 60 frail older adults (74.0 ± 6.0 years; 72.4% women). Participants were allocated to bodyweight interval training (BWIT = 30) for 24 weeks or to a control group (CG = 30) instructed to maintain their usual physical activities. Frailty status (Fried phenotype), physical-functional performance, cardiohemodynamic responses, and body composition were assessed at baseline and after 12 and 24 weeks. Longitudinal effects were analyzed using linear mixed-effects models and categorical between-group comparisons.
RESULTS: BWIT was associated with a higher probability of transition to less frail states over 24 weeks (p < 0.001), whereas the control group remained stable. Significant effects were observed in the intervention group (OR = 15.44; p = 0.006) and over time at 12 weeks (OR = 4.96; p = 0.005) and 24 weeks (OR = 15.24; p < 0.001). BWIT improved knee extension strength, five-times sit-to-stand performance, gait speed, and reduced blood pressure parameters (p < 0.001), with no relevant changes in body composition.
CONCLUSION: BWIT was effective in modifying frailty status in older adults over 24 weeks and may represent a feasible and accessible strategy for frailty management in primary health care.
TRIAL REGISTRATION: RBR-23t5jbh (Brazilian Registry of Clinical Trials), registered September 4, 2024, retrospectively registered.
METHODS: A randomized controlled trial was conducted with 60 frail older adults (74.0 ± 6.0 years; 72.4% women). Participants were allocated to bodyweight interval training (BWIT = 30) for 24 weeks or to a control group (CG = 30) instructed to maintain their usual physical activities. Frailty status (Fried phenotype), physical-functional performance, cardiohemodynamic responses, and body composition were assessed at baseline and after 12 and 24 weeks. Longitudinal effects were analyzed using linear mixed-effects models and categorical between-group comparisons.
RESULTS: BWIT was associated with a higher probability of transition to less frail states over 24 weeks (p < 0.001), whereas the control group remained stable. Significant effects were observed in the intervention group (OR = 15.44; p = 0.006) and over time at 12 weeks (OR = 4.96; p = 0.005) and 24 weeks (OR = 15.24; p < 0.001). BWIT improved knee extension strength, five-times sit-to-stand performance, gait speed, and reduced blood pressure parameters (p < 0.001), with no relevant changes in body composition.
CONCLUSION: BWIT was effective in modifying frailty status in older adults over 24 weeks and may represent a feasible and accessible strategy for frailty management in primary health care.
TRIAL REGISTRATION: RBR-23t5jbh (Brazilian Registry of Clinical Trials), registered September 4, 2024, retrospectively registered.