Inspiratory Muscle Fatigue In Trained Cyclists: Effects Of Inspiratory Muscle Training

“This study evaluated the influence of simulated 20- and 40-km time trials upon postexercise inspiratory muscle function of trained competitive cyclists. In addition, it examined the influence of specific inspiratory muscle training (IMT) upon the responses observed.”

Conclusion:

“Data support existing evidence that there is significant global inspiratory muscle fatigue after sustained heavy endurance exercise. Furthermore, the present study provides new evidence that performance enhancements observed after IMT are accompanied by a decrease in inspiratory muscle fatigue.”

Read Inspiratory muscle fatigue in trained cyclists: effects of inspiratory muscle training >

Effects Of IMT Upon Recovery Time During High Intensity, Repetitive Sprint Activity

“This study examined the influence of specific inspiratory muscle training (IMT) upon recovery time during repetitive sprint activity, as well as the physiological and perceptual responses to fixed intensity shuttle running.”

Conclusion:

“Data support existing evidence that specific IMT attenuates the blood lactate and perceptual responses to submaximal endurance exercise. In addition, the present study provides new evidence that IMT improves recovery time during high intensity, intermittent exercise in repetitive sprint athletes.”

Read Effects of inspiratory muscle training upon recovery time during high intensity, repetitive sprint activity >

Effect Of Inspiratory Muscle Work On Peripheral Fatigue Of Locomotor Muscles In Healthy Humans

“The work of breathing required during maximal exercise compromises blood flow to limb locomotor muscles and reduces exercise performance. This study asked if force output of the inspiratory muscles affected exercise-induced peripheral fatigue of locomotor muscles.”

Conclusion:

“Peripheral fatigue of locomotor muscles resulting from high-intensity sustained exercise is, in part, due to the accompanying high levels of respiratory muscle work.”

Read Effect of inspiratory muscle work on peripheral fatigue of locomotor muscles in healthy humans >

Specificity And Reversibility Of Inspiratory Muscle Training

“The purpose of this study was to evaluate the pressure-flow specificity of adaptations to inspiratory muscle training (IMT), in addition to the temporal effects of detraining and reduced frequency of training upon these adaptations.”

Conclusion:

“Data supports the notion of pressure-flow specificity of inspiratory muscle training. Detraining resulted in small but significant reductions in inspiratory muscle function. Reducing training frequency by two thirds allowed for the maintenance of inspiratory muscle function up to 18 wk post-IMT.”

Read Specificity And Reversibility Of Inspiratory Muscle Training >

Respiratory Muscle Training in Healthy Humans: Resolving the Controversy

“An overview of the literature that rationalizes contradictory findings about respiratory muscle training in healthy people.”

Conclusion:

“It is likely that the ergogenic effect of respiratory muscle training (RMT) has a multifactorial etiology that may include:

  1. The direct effect of RMT upon respiratory muscle fatigue
  2. RMT’s indirect effects upon improving blood flow distribution to limb locomotor muscles in heavy exercise
  3. RMT’s direct and indirect effect upon the intensity with which both respiratory and peripheral efforts are perceived.”

Read Respiratory Muscle Training in Healthy Humans: Resolving the Controversy >

Influence Of Environmental Temperature On Exercise-Induced Inspiratory Muscle Fatigue

“If blood is diverted away from the inspiratory muscles to the skin during exercise in the heat, exercise-induced inspiratory muscle fatigue might be exacerbated. This study hypothesised that prolonged heavy endurance exercise in the heat would impair exercise performance and exacerbate inspiratory muscle fatigue compared to exercise in a thermo-neutral environment.

Conclusion:

“This study concluded that heavy sustained exercise in the heat impaired subsequent time-trial performance but did not exacerbate inspiratory muscle fatigue in endurance-trained subjects.”

Read Influence of environmental temperature on exercise-induced inspiratory muscle fatigue >