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Purpose <p>The aim of this study was to explore the association between different levels of self-perceived muscular strength and health status among long-term breast cancer survivors (LTBCSs), as well as to determine the factors that predict self-perceived muscular strength during this phase of long-term survivorship.</p> Methods <p>A cross-sectional study was conducted with 80 LTBCSs, classified into three groups based on self-perceived muscular strength levels: very poor/poor (1–2), average (3), and good/very good (4–5). Variables analyzed, measured ≥ 5 years post-diagnosis, included other aspects of physical fitness, physical activity (PA) levels, pain, cancer-related fatigue (CRF), mood state, and health-related quality of life (HRQoL). ANOVA, Mann-Whitney <i>U</i>, and chi-square tests were performed, along with correlation and multiple regression analysis. Cohen’s <i>d</i> was used to calculate effect sizes.</p> Results <p>Among LTBCSs, 37.5% reported very poor/poor self-perceived muscular strength, 32.5% average, and 30% good/very good levels. Participants with lower self-perceived muscular strength exhibited declines in physical fitness, greater inactivity, higher pain levels, elevated CRF, mood disturbances, and reduced HRQoL (all<i> p</i> &lt; 0.05). Regression analysis identified “general physical fitness” (<i>β</i> = 0.32; <i>p</i> = 0.01), “cardiorespiratory endurance” (<i>β</i> = 0.40; <i>p</i> &lt; 0.01), “global health status” (<i>β</i> = 0.16; <i>p</i> = 0.04), and “breast symptoms” (<i>β</i> = − 0.16; <i>p</i> = 0.04) as significant predictors of higher self-perceived muscular strength (<i>r</i><sup>2</sup> adjusted = .573).</p> Conclusion <p>Good/very good levels of self-perceived muscular strength were observed in just 30% of LTBCSs. Those with lower self-perceived muscular strength exhibited more significant physical, mental, and emotional decline ≥ 5 years post-diagnosis. The combination of “general physical fitness,” “cardiorespiratory endurance,” “global health status,” and “breast symptoms” accounts for 57.3% of the variance in self-perceived muscular strength levels among LTBCSs.</p> Implications for Cancer Survivors <p>Targeted interventions addressing self-perceived muscular strength could help mitigate long-term physical and emotional sequelae.</p>

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Self-perceived muscular strength and its correlation with physical, mental, and emotional health status in long-term breast cancer survivors: a cross-sectional study

  • 期刊论文

  • 发表日期：

    2025年6月2日

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  • Francisco Álvarez-Salvago,
  • Jose Medina-Luque,
  • Maria Figueroa-Mayordomo,
  • Clara Pujol-Fuentes,
  • Sandra Atienzar-Aroca,
  • José Daniel Jiménez-García,
  • Palmira Gutiérrez-García,
  • Cristina Estornut,
  • Cristina Molina-García

摘要

Purpose

The aim of this study was to explore the association between different levels of self-perceived muscular strength and health status among long-term breast cancer survivors (LTBCSs), as well as to determine the factors that predict self-perceived muscular strength during this phase of long-term survivorship.

Methods

A cross-sectional study was conducted with 80 LTBCSs, classified into three groups based on self-perceived muscular strength levels: very poor/poor (1–2), average (3), and good/very good (4–5). Variables analyzed, measured ≥ 5 years post-diagnosis, included other aspects of physical fitness, physical activity (PA) levels, pain, cancer-related fatigue (CRF), mood state, and health-related quality of life (HRQoL). ANOVA, Mann-Whitney U, and chi-square tests were performed, along with correlation and multiple regression analysis. Cohen’s d was used to calculate effect sizes.

Results

Among LTBCSs, 37.5% reported very poor/poor self-perceived muscular strength, 32.5% average, and 30% good/very good levels. Participants with lower self-perceived muscular strength exhibited declines in physical fitness, greater inactivity, higher pain levels, elevated CRF, mood disturbances, and reduced HRQoL (all p < 0.05). Regression analysis identified “general physical fitness” (β = 0.32; p = 0.01), “cardiorespiratory endurance” (β = 0.40; p < 0.01), “global health status” (β = 0.16; p = 0.04), and “breast symptoms” (β = − 0.16; p = 0.04) as significant predictors of higher self-perceived muscular strength (r2 adjusted = .573).

Conclusion

Good/very good levels of self-perceived muscular strength were observed in just 30% of LTBCSs. Those with lower self-perceived muscular strength exhibited more significant physical, mental, and emotional decline ≥ 5 years post-diagnosis. The combination of “general physical fitness,” “cardiorespiratory endurance,” “global health status,” and “breast symptoms” accounts for 57.3% of the variance in self-perceived muscular strength levels among LTBCSs.

Implications for Cancer Survivors

Targeted interventions addressing self-perceived muscular strength could help mitigate long-term physical and emotional sequelae.