This new research article has just been released by Disability and Rehabilitation – An international, multidisciplinary journal.
Purpose: To investigate whether 12 week inspiratory muscle training (IMT) has any impact on pulmonary function, maximum respiratory pressures and diaphragmatic mobility (DM) in morbidly obese subjects.
Method: Thirty-one morbidly obese individuals were assessed. Volunteers were randomised into two groups. The IMT group (n = 16) followed an IMT protocol for 12 weeks, with a training load of 30% of maximal inspiratory pressure (PImax). The control group (CG) (n = 15) followed the same protocol but without inspiratory load.
Results: A total of 14 subjects performed IMT for 12 weeks. Significant increases in PImax (−86.86 ± −20.70 cmH2O versus −106.43 ± −32.97 cmH2O, p < 0.05) and maximal voluntary ventilation (97.84 ± 37.06 L/min versus 115.17 ± 34.17 L/min, p < 0.05) were observed in the IMT group when compared to baseline. However, only FIV1 significantly differed between the IMT group and the CG after the 12 week protocol (3.35 ± 0.96 L versus 2.22 ± 1.07 L, respectively; p < 0.05). No significant differences were found in DM after the IMT protocol was performed.
Conclusion: IMT improved PImax and altered the FIV1. These results suggest that the improvements in muscular respiratory efficiency were insufficient to mobilise the diaphragm and modify ventilation mechanics. Pre-operative IMT may be a valuable approach in obese patients for preventing post-operative pulmonary complications. http://clinicaltrials.org -- NCT01449643 -- The Influence of IMT on Diaphragmatic Mobility in Morbidly Obese.Implications for Rehabilitation Morbid Obesity
Implications for Rehabilitation
- Morbid obesity is a disabling condition that has a serious negative impact on lung function, respiratory muscle function and quality of life.
- Inspiratory Muscle Training (IMT) is a technique which aims to improve pulmonary expansion and to prevent post surgery complications on morbid obese individuals.
- This study shows significantly increased on maximal inspiratory pressure, maximal voluntary ventilation and promoted changes on spirometric variables after IMT.