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Background <p>Intrinsic capacity (IC), the composite of physical and mental capacities, is crucial for health and well-being in older adults. With aging populations experiencing IC decline, effective interventions are needed to promote healthy aging. This study evaluated the effectiveness of a structured lifestyle counseling program on IC in older women.</p> Methods <p>In this 8-week cluster randomized controlled trial, 240 women aged ≥ 60 were equally allocated to intervention or control groups. The intervention group participated in an 8-session (30–45&#xa0;min/session) counseling program delivered in small groups (10 participants each), focusing on five IC domains: nutrition (vitality), physical exercise (locomotion), psychological well-being (happiness/depression management), cognitive stimulation, and sensory health. Sessions included education, goal-setting, and interactive discussions. The control group received no intervention during the study period but obtained educational materials post-trial. IC domains were assessed at baseline and 1-week post-intervention using validated tools: SPPB and TUG (locomotion), Mini-Cog (cognition), GDS (Geriatric Depression Scale) (psychological), MNA (Mini Nutritional Assessment) (vitality), and self-reported sensory measures.</p> Results <p>The intervention group showed significantly greater improvement in overall IC compared to controls (adjusted mean difference [aMD] = 2.07, 95%CI: 1.69, 2.44). Domain-specific improvements included locomotion (aMD = 0.92, 95%CI: 0.68, 1.16), vitality (aMD =1.01 , 95%CI: 0.67, 1.33), cognition (aMD = 0.80, 95%CI: 0.52, 1.09), psychological (aMD = 2.28, 95%CI:1.37, 3.19), and sensory (aMD = 0.29, 95%CI:0.13, 0.44).</p> Conclusion <p>An 8-week lifestyle counseling intervention significantly improved intrinsic capacity and its domains in older women. These findings support the implementation of targeted, multidomain interventions to promote healthy aging, though longer-term studies are needed to assess sustained benefits.</p> Trial registration <p>Date of Registration: 26 June 2023. Date of Initial Participant Enrollment: 6 July 2023, Iranian Registry of Clinical Trials identifier: IRCT20230328057780N1, URL: <a href="https://irct.behdasht.gov.ir/trial/69321">https://irct.behdasht.gov.ir/trial/69321</a>.</p>

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Effectiveness of a multidomain lifestyle counseling intervention on intrinsic capacity in older women: a randomized clinical trial

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月24日

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  • Mahsa Rouhani-Otaghsara,
  • Shabnam Omidvar,
  • Mahdi Sepidarkish,
  • Afsaneh Bakhtiari,
  • Fatemeh Nasiri-Amiri

摘要

Background

Intrinsic capacity (IC), the composite of physical and mental capacities, is crucial for health and well-being in older adults. With aging populations experiencing IC decline, effective interventions are needed to promote healthy aging. This study evaluated the effectiveness of a structured lifestyle counseling program on IC in older women.

Methods

In this 8-week cluster randomized controlled trial, 240 women aged ≥ 60 were equally allocated to intervention or control groups. The intervention group participated in an 8-session (30–45 min/session) counseling program delivered in small groups (10 participants each), focusing on five IC domains: nutrition (vitality), physical exercise (locomotion), psychological well-being (happiness/depression management), cognitive stimulation, and sensory health. Sessions included education, goal-setting, and interactive discussions. The control group received no intervention during the study period but obtained educational materials post-trial. IC domains were assessed at baseline and 1-week post-intervention using validated tools: SPPB and TUG (locomotion), Mini-Cog (cognition), GDS (Geriatric Depression Scale) (psychological), MNA (Mini Nutritional Assessment) (vitality), and self-reported sensory measures.

Results

The intervention group showed significantly greater improvement in overall IC compared to controls (adjusted mean difference [aMD] = 2.07, 95%CI: 1.69, 2.44). Domain-specific improvements included locomotion (aMD = 0.92, 95%CI: 0.68, 1.16), vitality (aMD =1.01 , 95%CI: 0.67, 1.33), cognition (aMD = 0.80, 95%CI: 0.52, 1.09), psychological (aMD = 2.28, 95%CI:1.37, 3.19), and sensory (aMD = 0.29, 95%CI:0.13, 0.44).

Conclusion

An 8-week lifestyle counseling intervention significantly improved intrinsic capacity and its domains in older women. These findings support the implementation of targeted, multidomain interventions to promote healthy aging, though longer-term studies are needed to assess sustained benefits.

Trial registration

Date of Registration: 26 June 2023. Date of Initial Participant Enrollment: 6 July 2023, Iranian Registry of Clinical Trials identifier: IRCT20230328057780N1, URL: https://irct.behdasht.gov.ir/trial/69321.