Effect of Inspiratory Muscle Training on Exercise Tolerance in Asthmatic Individuals

Abstract

These data suggest that IMT attenuates inspiratory muscle fatigue, reduces the perception of dyspnea, and increases exercise tolerance. These findings suggest that IMT may be a helpful adjunct to asthma management that has the potential to improve participation and adherence to exercise training in this group. However, the perception of breathlessness is also an important signal of bronchoconstriction, and thus, caution should be exercised if this symptom is abnormally low.

A Comparison between Two Types of Resistive Inspiratory Muscle Training Devices in Normal Subjects in Regards to Pulmonary Functions

“…Improvement in PEFR was observed in PG only which is in agreement with the feature that the POWERbreath Plus company developed to improve the air flow [29]. Turner et al, [8] which studied the influence of IMT on exercise tolerance with asthmatic patients; it was applied on Fifteen asthmatic patients (seven males, eight females) seven as Threshold group while the other eight in the control group; and they proved that PEFR doesn't show any improvement after six weeks of training using IMT device (Training consisting of 30 breaths twice daily at 50% of MIP) and that's in harmony with our findings in Threshold group.…”

“…Both Souza et al, [3] and Albuquerque et al, [15] showed no change in lung volumes as stated by Enright and Unnithan [12]. In contrast, TURNER et al [8] reported that six weeks training period using PR-IMT in asthmatic patients with a moderate load of 50% improved MIP, tolerance and perception of dyspnea. But no significant changes were noted in the following pulmonary function variables: peak expiratory flow rate, forced expiratory flow, neither forced vital capacity nor forced expiratory volume during the first second.…”

“…In addition, the normal mechanism of PR-IMT devices requires the initiation of a negative pressure (breath) done by the subjects to overcome the load resistance [5]. The effectiveness of these devices has been proved in Turner et al, [7,8] which stated that the PR-IMT devices work on improving the maximal inspiratory pressure (MIP). In International Journal of Physical Medicine & Rehabilitation addition, proved that there is an improvement in MIP [3], maximal expiratory pressure (MEP), diaphragm mobility and thickness.…”

“…Pressure resistive inspiratory training devices showed improvements in different parameters with several cases such as; Asthma [8], chronic obstructive pulmonary disease (COPD), Cystic Fibrosis [16], Hypertensive [17] and ventilator dependent patients [18]. Since COPD patients have daily limitations triggered by respiratory muscle fatigue, many authors have established their studies on them.…”

Efeito Do Treinamento Muscular Inspiratório Na Função Pulmonar E Estado Funcional De Um Paciente Com Anemia Falciforme: Relato De Caso

“…Desde 2002, Romer e outros (14) já haviam descrito a melhora da performance de ciclistas após TMI, entretanto, repercussões em indivíduos com algum quadro patológico ainda não são tão frequentes. Tuner e outros (15) em 2013 foram um dos poucos que relataram a melhora da sensação de dispnéia em pacientes asmáticos submetidos a um protocolo de TMI.…”