RESUMO
Purpose: Experimental studies investigating the outcomes of physical exercise among age-stratified groups of older women are still incipient. This study aimed to investigate the effects of a ten-month multicomponent physical program on the physical fitness of older women in three age-stratified groups (60-69 years, 70-79 years, and ≥80 years). Method: Participants (n = 141) were divided into three age groups: GR1 60-69 years (n = 45; 65.2 ± 2.3 years); GR2 70-79 years (n = 67; 72.9 ± 2.9 years), GR3 ≥80 years (n = 29; 83.5 ± 4.5 years). The participants performed the multicomponent physical program and were evaluated before and after the intervention with Senior Fitness Test. Data were analyzed using generalized estimating equations, Bonferroni test (p ≤.05) and effect size (Cohen's d). Results: For the group factor, there were significant differences in lower limb strength (p = .003), upper limb strength (p < .001), upper limb flexibility (p < .001), balance/agility (p < .001), and cardiorespiratory fitness (p < .001). For the time factor, significant differences were observed in lower limb strength (GR2, p = .014, small effect size), upper limb strength (GR1, p = .003; GR2, p < .001; GR3, p = .017; small effect sizes), lower limb flexibility (GR1, p = .025, non-significant effect size), cardiorespiratory fitness (GR1, p < .001, medium effect size; GR2, p = .002; small effect size). Conclusion: Physical fitness improved with training, but effects differed between age groups. Positive effects were observed for GR1 and GR2, whereas GR3 showed maintenance of physical fitness. Aging interferes more strongly in women aged 80 years and older and it is necessary for specific training programs for this age group. .
