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. 2022 Jan;14(1):10-16.
doi: 10.1111/luts.12403. Epub 2021 Jul 20.

Relationships between stress urinary incontinence and trunk muscle mass or spinal alignment in older women

Saki Iguchi  1 , Tomoe Inoue-Hirakawa  1 , Ippei Nojima  2 , Taiji Noguchi  3   4 , Hideshi Sugiura  1
Affiliations

Relationships between stress urinary incontinence and trunk muscle mass or spinal alignment in older women

Saki Iguchi et al. Low Urin Tract Symptoms. 2022 Jan.

Abstract

Objectives: Relationships between stress urinary incontinence (SUI) and physical function and spinal alignment have not been fully elucidated; therefore, we examined these relationships in older women.

Methods: The participants of this cross-sectional study comprised 21 women with SUI (SUI group) and 41 continent women (continent group) aged >65 years who participated in a community-based health-check survey from 2018 to 2019. We examined age, body mass index, number of deliveries, age at first childbirth, and medical histories as participants' characteristics. SUI was evaluated using the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF). We also assessed spinal alignment and physical activity, grip strength, trunk and lower limb muscle mass, gait speed, and one-leg standing time as measures of participants' physical function.

Results: Body mass index was significantly higher in the SUI group compared with continents (P = 0.04), and trunk muscle mass in the SUI group was significantly lower (P < 0.01). Additionally, the thoracic kyphosis angle in the SUI group was significantly larger (P = 0.02). In the logistic regression analysis, trunk muscle mass (odds ratio = 0.546, P = 0.03) and increased thoracic kyphosis angle (odds ratio = 1.066, P = 0.045) were independent factors affecting SUI. Furthermore, there was a negative weak correlation between total ICIQ-SF score and trunk muscle mass (r = -0.36, P < 0.01), and a positive weak correlation between total ICIQ-SF score and thoracic kyphosis angle (r = 0.27, P < 0.05).

Conclusion: Trunk muscle mass and thoracic kyphosis angle relate to SUI status and severity among Japanese community-dwelling older women.

Keywords: aging; female; posture; torso; urinary incontinence.

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Figures

FIGURE 1
FIGURE 1
Participant flowchart. SUI, stress urinary incontinence
FIGURE 2
FIGURE 2
Spinal alignments. 1. Thoracic kyphosis angle. 2. Lumbar lordosis angle. 3. Sacral inclination angle
FIGURE 3
FIGURE 3
Correlation between trunk muscle mass and total ICIQ‐SF score. ICIQ‐SF, International Constitution on Incontinence Questionnaire‐Short Form. The total ICIQ‐SF score is negatively correlated with the trunk muscle mass (r = −0.36, P < 0.01)
FIGURE 4
FIGURE 4
Correlation between thoracic kyphosis angle and total ICIQ‐SF score. ICIQ‐SF, International Constitution on Incontinence Questionnaire‐Short Form. The total ICIQ‐SF score is positively correlated with the thoracic kyphosis angle (r = 0.27, P = 0.04)
See this image and copyright information in PMC

Comment in

  • Geriatrics.
    Griebling TL. Griebling TL. J Urol. 2023 May;209(5):1006-1008. doi: 10.1097/JU.0000000000003369. Epub 2023 Feb 22. J Urol. 2023. PMID: 37026643 No abstract available.

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