Changes in sleep quality and body composition following a multimodal lifestyle intervention in older women: a single-arm pilot study

This pilot study investigates the changes in sleep quality, body composition, and biochemical parameters following a 12-week intervention including diet therapy, physical activity, and psychological support in overweight and obese women aged ≥ 60 years. In this single-arm, pre-post design pilot study, thirty-six volunteer women who applied to a healthy living center in Turkey were enrolled. For 12 weeks, they received nutrition counseling and psychological support and were encouraged to walk regularly for at least 150 min per week. Participants were assessed using the Pittsburgh Sleep Quality Inventory (PSQI), the Psychological Well-Being Scale in the Elderly (PWBSE), and the International Physical Activity Questionnaire (IPAQ-Short Form). Anthropometric measurements and biochemical findings were collected. Significant improvements were observed in PWBSE, IPAQ, and PSQI scores at week 12 compared to baseline ( p < 0.001). Biochemical blood parameters and anthropometric measurements also showed significant positive changes. In particular, HDL values increased significantly at week 12 compared to baseline. Preliminary findings from this pilot study suggest that a 12-week multimodal intervention may be associated with improvements in sleep quality, body composition, and biochemical parameters in older women. Future randomized controlled trials are needed to confirm these initial observations.