Temporal trends in trunk flexor endurance and intra-abdominal pressure in postpartum women

Hendrycks, Russell; Yang, Meng; Hitchcock, Robert; Leitner, Monika; Niederauer, Stefan; Nygaard, Ingrid E.; Sheng, Xiaoming; Shaw, Janet M. (2019). Temporal trends in trunk flexor endurance and intra-abdominal pressure in postpartum women Physiotherapy Theory and Practice, 37(11), pp. 1217-1226. Taylor & Francis 10.1080/09593985.2019.1686792

Text Hendrycks 2019_Trunk flexor endurance and IAP postpartum.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (1MB) | Request a copy

Objectives: To describe change in trunk flexor endurance and intra-abdominal pressure (IAP) associated with trunk flexor assessment and explore factors associated with change in trunk flexor endurance during the first postpartum year. Design: Ancillary analysis of an ongoing prospective cohort study. Methods: Participants (N = 282) were primiparous women delivered vaginally. They completed trunk flexor endurance testing while assessing IAP, body habitus measures (body mass index, waist circumference, and body composition), and questionnaires 5–10 weeks and 11–15 months postpartum. We investigated change in trunk flexor endurance by quartile of improvement and factors associated with improvement (Q4 vs. Q1-Q3) using multivariable models, adjusted for baseline endurance. Results: Mean age was 28 ± 5 years. The median (IQR) trunk flexor hold time increased from early to late postpartum (129/IQR = 68, 217 vs 148/IQR = 80, 265 seconds, p = .01) and mean (SD) IAP decreased (55/SD = 13 vs 48/SD = 14 cmH20, p < .0001). The most improved group (Q4) increased endurance time by 176 seconds (95% CI = 103, 254), were less likely to be Hispanic, more likely to be older, more educated, and have lower measures of body habitus than women in Q1-Q3. Conclusion: Trunk flexor endurance increased and IAP decreased over one year postpartum. Lower body habitus and higher age early postpartum predicted greatest improvement in trunk flexor endurance at 1 year.

Item Type:	Journal Article (Original Article)
Division/Institute:	School of Health Professions
Name:	Hendrycks, Russell; Yang, Meng; Hitchcock, Robert; Leitner, Monika0000-0003-2685-4605; Niederauer, Stefan; Nygaard, Ingrid E.; Sheng, Xiaoming and Shaw, Janet M.
ISSN:	0959-3985
Publisher:	Taylor & Francis
Language:	English
Submitter:	Monika Leitner
Date Deposited:	12 Dec 2019 09:11
Last Modified:	31 Oct 2021 01:32
Publisher DOI:	10.1080/09593985.2019.1686792
ARBOR DOI:	10.24451/arbor.9411
URI:	https://arbor.bfh.ch/id/eprint/9411