Objectives: This study explored the impact of a 12-week walking and barre exercise program on depression levels (CES-D), stress hormones (dopamine, epinephrine, norepinephrine, cortisol, serotonin), high-sensitivity C-reactive protein (hs-CRP), and immunoglobulins (IgA, IgG, IgM) in women aged 65 and above. Methods: Twenty-seven participants were divided into a walking exercise group (WG), barre exercise group (BG) and control group (CG), each comprising nine individuals. Sessions lasted 50 min, thrice weekly, with intensity progressing every 4 weeks. Two-way repeated measures of ANOVA assessed time–group interactions and main effects, and paired t-tests and one-way ANOVA were used post hoc with significance set at 0.05. Results: The CES-D scores demonstrated significant interaction (p < 0.001), decreasing significantly in the BG and WG (p < 0.01) while rising in the CG (p < 0.05). Post hoc analysis revealed significantly lower depression levels in the BG compared to the CG (p < 0.01). Stress hormones epinephrine and cortisol showed a main effect of time (p < 0.05), with epinephrine increasing significantly in the BG (p < 0.05) and cortisol decreasing in the BG and WG (p < 0.05). An interaction effect emerged in hs-CRP levels (p < 0.05), while IgA and IgM displayed interaction effects (p < 0.05 and p < 0.01, respectively), both significantly increasing in the BG (p < 0.05). Conclusions: In summary, regular exercise positively impacted depression, stress hormones, and immune functions in older women.

South Korea is rapidly transitioning into a super-aged society, where women not only outnumber men, but also have longer life expectancy. However, older adult women in Korea engage in significantly less regular physical activity than their male counterparts. This study aimed to examine the physiological mechanisms through which a 16-week progressive aerobic exercise program affected chronic inflammation and oxidative stress associated with aging in older adult women with obesity. We randomly assigned 28 women aged ≥70 years with obesity to either an obesity exercise group (OEG) or an obesity control group (OCG). The OEG participated in a supervised aerobic exercise program three times per week for 16 weeks, with intensity progressively increasing. To analyze the effects of the intervention over time and between groups, a two-way repeated-measures ANOVA was conducted. Within-group comparisons across time points were performed using paired t-tests, and between-group comparisons at each time point were analyzed using independent t-tests. The OEG demonstrated a greater reduction in serum chemotactic chemokine biomarker CCL11 concentration than the OCG. The pattern was consistent across participants, suggesting that regular, progressively intensified aerobic exercise may help suppress pro-inflammatory chemokine expression, particularly that of CCL11, in older adult women with obesity. A 16-week program of progressive aerobic exercise effectively reduced systemic inflammation and oxidative stress in older adult women with obesity, while potentially enhancing antioxidant defense. CCL11 reduction may reflect anti-inflammatory adaptations and potential neuroprotective benefits. These findings support aerobic exercise as a non-pharmacological strategy to manage age-related physiological decline.

Background: The purpose of this study was to investigate the effects of a 16-week exercise program combining aerobic and resistance training on body composition, growth differentiation factor-15 (GDF-15), apelin-12, and interleukin-15 (IL-15) in older Korean women according to obesity status. Methods: Participants were divided into obesity (n = 15) and normal-weight groups (n = 14). A walking exercise was performed at 60–70% heart rate reserve (RPE 13–15). The bodyweight resistance exercises were progressively intensified over 16 weeks. Analysis methods included two-way repeated measures ANOVA, ANCOVA, and paired and independent t-tests. Results: Significant main effects of time and group were observed in body weight (p < 0.001), and both groups demonstrated significant within-group reductions in body mass index (BMI) (obese: p < 0.001; normal-weight: p < 0.05), along with significant between-group differences (p < 0.001). The percentage of body fat significantly decreased over time (p < 0.01) and differed between groups (p < 0.001). GDF-15 exhibited a significant group × time interaction (p < 0.05) and a main group effect (p < 0.05). Although no statistically significant changes were observed in Apelin-12 levels, an opposite trend was identified between groups, with an increase in the obese group and a decrease in the normal-weight group. For IL-15, no significant interaction effect was found between the groups. Conclusions: The 16-week combined exercise intervention improved key markers of body composition, particularly in obese older women, and led to increased GDF-15, indicating potential metabolic benefits. While changes in apelin-12 and IL-15 were not statistically significant, the findings support the utility of combined exercise for mitigating fat accumulation and promoting healthy aging in older adults.