Published online Aug 16, 2018. doi: 10.12998/wjcc.v6.i8.207
Peer-review started: March 29, 2018
First decision: April 13, 2018
Revised: April 27, 2018
Accepted: June 26, 2018
Article in press: June 27, 2018
Published online: August 16, 2018
To examine the effect of combined exercise on colonic transit time (CTT) in admitted psychiatric patients.
Over a 6-mo period, consecutive in patients with mental illness were recruited from the Somang Hospital Psychiatry Unit. A combined exercise program that included 60 min per day of exercise 3 d per week for 12 wk was performed. Physical fitness and CTT of the patients were measured twice before and twice after the exercise program. CTT was measured using a multiple marker technique with a radio-opaque marker. Changes in the exercising patients’ CTT and weight-, cardiovascular- and fitness-related parameters were statistically assessed.
After the 12-wk combined exercise intervention, decreased intestinal transit time was observed in all CTTs of the exercise group, including the right CTT (exercise: 15.6 ± 15.2 vs 9.2 ± 11.9, control: 13.1 ± 10.4 vs 10.9 ± 18.7), left CTT (exercise: 19.7 ± 23.5 vs 10.4 ± 13.2, control: 19.2 ± 19.0 vs 16.9 ± 19.8), recto-sigmoid CTT (exercise: 14.3 ± 16.7 vs 6.7 ± 7.9, control: 15.0 ± 14.4 vs 19.3 ± 30.3), and total colonic transit time (TCTT) (exercise: 50.2 ± 38.1 vs 27.1 ± 28.0, control: 47.4 ± 34.6 vs 47.3 ± 47.3). After the 12-wk combined exercise period, TCTT was significantly shortened in the exercise group compared with that in the control group. In addition to eating habits, water intake, and fiber intake, the increased physical activity level as a result of the 12-wk combined exercise program reduced the CTT.
The CTT of the psychiatric patients was reduced due to increased physical activity via a 12-wk combined exercise program.
Core tip: Maintaining physical activity routine for in patients of closed wards in mental health facilities remains a major challenge. Long-term inactivity is a risk factor for decreased gastrointestinal motility, which leads to constipation, weight gain, and related metabolic and cardiovascular disorders and can affect drug absorption. In this study, implementation of a 12-wk combined exercise program was shown to be beneficial in reducing colonic transit time and increasing leg strength.