Inspiratory muscle training can improve the pulmonary functioning, respiratory muscle strength and endurance of morbidly obese persons after bariatric surgery / 中华物理医学与康复杂志

ABSTRACT

Objective:To explore the effect of inspiratory muscle training (IMT) on the pulmonary functioning, respiratory muscle strength and endurance of morbidly obesity persons after bariatric surgery.Methods:Thirty-six morbidly obese patients undergoing bariatric surgery were randomly divided into an experimental group and a control group. A 20-minute daily IMT intervention was administered on the 2nd through the 30th day after the operation. The intensities were 40% and 5% of the maximum inspiratory pressure (MIP). Forced vital capacity, forced expiratory volume in 1 second, maximum peak expiratory flow, maximum inspiratory pressure (MIP) and maximum expiratory pressure, as well as endurance were measured before the operation and on the 2nd, 7th, 14th and 30th day afterward.Results:By the 7th day the pulmonary function of the experimental group had recovered to the level before the operation. For the control group that took until the 14th day. On the 30th day after the operation the average MIP and inspiratory muscle endurance of the experimental group had increased significantly compared with before the operation, while the average MIP of the control group had decreased significantly.Conclusions:Inspiratory muscle training can improve inspiratory muscle strength and endurance and accelerate the recovery of lung function of morbidly obese persons after bariatric surgery.