CC BY-NC-ND 4.0 · Endosc Int Open 2017; 05(09): E856-E860
DOI: 10.1055/s-0043-115385
Original article
Eigentümer und Copyright ©Georg Thieme Verlag KG 2017

Physical activity during video capsule endoscopy correlates with shorter bowel transit time

Peter P. Stanich1, Joshua Peck1, Christopher Murphy1, Kyle M. Porter2, Marty M. Meyer1
  • 1Section of Capsule Endoscopy, Division of Gastroenterology, Hepatology and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, United States
  • 2Center for Biostatistics, The Ohio State University Wexner Medical Center, Columbus, Ohio, United States
Further Information

Publication History

submitted 20 February 2017

accepted after revision 21 June 2017

Publication Date:
12 September 2017 (online)

Abstract

Background and study aim Video capsule endoscopy (VCE) is limited by reliance on bowel motility for propulsion, and lack of physical activity has been proposed as a cause of incomplete studies. Our aim was to prospectively investigate the association between physical activity and VCE bowel transit.

Patients and methods Ambulatory outpatients receiving VCE were eligible for the study. A pedometer was attached at the time of VCE ingestion and step count was recorded at the end of the procedure. VCE completion was assessed by logistic regression models, which included step count (500 steps as one unit). Total transit time was analyzed by Cox proportional hazards models. The hazard ratios (HR) with 95 % confidence interval (CI) indicated the “hazard” of completion, such that HRs > 1 indicated a reduced transit time.

Results A total of 100 patients were included. VCE was completed in 93 patients (93 %). The median step count was 2782 steps. Step count was not significantly associated with VCE completion (odds ratio 1.45, 95 %CI 0.84, 2.49). Pedometer step count was significantly associated with shorter total, gastric, and small-bowel transit times (HR 1.09, 95 %CI 1.03, 1.16; HR 1.05, 95 %CI 1.00, 1.11; HR 1.07, 95 %CI 1.01, 1.14, respectively). Higher body mass index (BMI) was significantly associated with VCE completion (HR 1.87, 95 %CI 1.18, 2.97) and shorter bowel transit times (HR 1.05, 95 %CI 1.02, 1.08).

Conclusions Increased physical activity during outpatient VCE was associated with shorter bowel transit times but not with study completion. In addition, BMI was a previously unreported clinical characteristic associated with VCE completion and should be included as a variable of interest in future studies.