Effects of Inspiratory Muscle Training on Type 2 Diabetes Mellitus Patients With Inspiratory Muscle Weakness

Effects of Inspiratory Muscle Training on Type 2 Diabetes Mellitus Patients With Inspiratory Muscle Weakness

Effects of Inspiratory Muscle Training on Type 2 Diabetes Mellitus Patients With Inspiratory Muscle Weakness: A Randomized, Controlled Clinical Trial

The purpose of the study is to determine if inspiratory muscle training improves inspiratory muscle strength of type 2 diabetes mellitus patients with inspiratory muscle weakness.

In congestive heart failure patients, inspiratory muscle weakness can be reversed by developing diaphragmatic hypertrophy through inspiratory muscle training, improving functional capacity and quality of life. In type 2 diabetes mellitus patients the frequency of inspiratory muscle weakness is unknown, as well as the response to inspiratory muscle training. For this reason, the present study evaluated the inspiratory muscle strength in type 2 diabetes mellitus patients and the effect of inspiratory muscle training on inspiratory muscle strength, pulmonary function, functional capacity and autonomic modulation assessed through heart rate variability.

inspiratory muscle weakness, autonomic modulation, diabetes mellitus, heart rate variability, functional capacity

For Inspiratory muscle training (IMT)patients carried out the IMT on a daily basis for eight weeks, with duration of 30 minutes and intensity corresponding to 30% of resting PImax, with a linear pressure resistance device (Threshold®). Weekly maximum inspiratory pressure (PImax) evaluations and workload adjustments were performed. Inspiratory load was adjusted on a weekly basis to maintain 30% of the subject's PImax. Training sessions were carried out at home for both groups and supervised once a week at the hospital.

Inspiratory muscle training was carried out on the same basis as in the intervention group but with no inspiratory load.

Inclusion Criteria: diabetes melittus sedentary inspiratory muscle weakness with PImax < 70% of the predicted Exclusion Criteria: mass index > 33 kg/m2 exercise-induced asthma history infectious disease osteoarticular disease regular alcohol or tobacco consumption in the past 6 months cardiac disease pulmonary disease

Chiappa GR, Roseguini BT, Vieira PJ, Alves CN, Tavares A, Winkelmann ER, Ferlin EL, Stein R, Ribeiro JP. Inspiratory muscle training improves blood flow to resting and exercising limbs in patients with chronic heart failure. J Am Coll Cardiol. 2008 Apr 29;51(17):1663-71. doi: 10.1016/j.jacc.2007.12.045.

Correa AP, Ribeiro JP, Balzan FM, Mundstock L, Ferlin EL, Moraes RS. Inspiratory muscle training in type 2 diabetes with inspiratory muscle weakness. Med Sci Sports Exerc. 2011 Jul;43(7):1135-41. doi: 10.1249/MSS.0b013e31820a7c12.