Journal of Womens Health, Issues and Care ISSN: 2325-9795

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Research Article, J Womens Health Issues Care Vol: 7 Issue: 5

Associations of Thoracic Flexion and Hamstring Flexibility with Pregnancy-Related Low Back Pain after Childbirth

Yuki Kondo1, Ryuichi Sawa2, Aoi Ebina1, Chihiro Shigemoto3, Maho Okumura1, Naoka Matsuda1 and Rei Ono1*

1Department of Community Health Sciences, Kobe University Graduate School of Health Sciences, Hyogo, Japan

2Department of Physical Therapy, School of Health Sciences at Narita, International University of Health and Welfare, Chiba, Japan

3Faculty of Health Sciences, School of Medicine, Kobe University, Hyogo, Japan

*Corresponding Author : Rei Ono
Department of Community Health Sciences, Kobe University Graduate School of Health Sciences, Hyogo, Japan
Tel: (81) 078-792-2555/ 078-796-4509
E-mail: [email protected]

Received: October 20, 2018 Accepted: October 25, 2018 Published: October 29, 2018

Citation: Kondo Y, Sawa R, Ebina A, Shigemoto C, Okumura M, et al. (2018) Associations of Thoracic Flexion and Hamstring Flexibility with Pregnancy-Related Low Back Pain after Childbirth. J Womens Health, Issues Care 7:5. doi: 10.4172/2325-9795.1000320

Abstract

Abstract Objective: Pregnancy-related low back pain (PLBP) after childbirth is a major problem, but risk factor for this is not fully understood. The purpose of this cross-sectional study was to verify the associations of thoracic flexion and hamstring flexibility with PLBP 4 months after childbirth. Methods: This cross-sectional study was conducted in which seventy-four postpartum women who had PLBP during pregnancy (mean age: 31.1 ± 5.0 years) at A health and welfare center in Hyogo, Japan. PLBP 4 months after childbirth was assessed using a self-reported questionnaire. The range of motion (ROM) of thoracic flexion was measured using the double inclinometer method and classified based on tertile divisions. Limitations of 20° or more from full knee extension determined using the seated knee extension test were considered to indicate a tight hamstring. Results: PLBP after childbirth was more likely in women in the lowest tertile of thoracic flexion ROM than in those in the highest tertile (OR, 4.25; 95% CI, 1.29–14.03). A tight hamstring was associated with PLBP after childbirth (OR, 3.27; 95% CI, 1.14–9.32). After adjusting for relevant confounding variables, the thoracic flexion ROM and a tight hamstring remained significantly independently associated with PLBP after childbirth (thoracic flexion ROM: adjusted OR, 4.70; 95% CI, 1.16–19.01; tight hamstring: adjusted OR, 3.93; 95% CI, 1.03–15.02). Conclusion: Reduced thoracic flexion and hamstring flexibility are associated with PLBP after childbirth. Interventions for thoracic flexion and hamstring flexibility in postpartum women could help prevent and improve PLBP after childbirth.

Keywords: Low back pain; Pregnancy; Postpartum period; Childbirth; Flexibility; Thoracic vertebrae; Hamstring muscles

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