Article

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 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.

Langue : ANGLAIS