Effect Of High-Intensity IMT On Lung Volumes, Diaphragm Thickness, And Exercise Capacity In Subjects Who Are Healthy

“Previous investigations have demonstrated that a regimen of high-intensity inspiratory muscle training (IMT) resulted in changes in ventilatory function and exercise capacity in patients with chronic lung disease, although the effect of high-intensity IMT in subjects who are healthy is yet to be determined. The purpose of this study, therefore, was to examine whether high-intensity IMT resulted in changes in ventilatory function and exercise capacity in subjects who were healthy.”

Conclusion:

“The findings of this study suggest that high-intensity IMT results in increased contracted diaphragm thickness and increased lung volumes and exercise capacity in people who are healthy.”

Read Effect of high-intensity inspiratory muscle training on lung volumes, diaphragm thickness, and exercise capacity in subjects who are healthy >

Effect Of Specific Inspiratory Muscle Warm-Up On Intense Intermittent Run To Exhaustion

“The effects of inspiratory muscle (IM) warm-up on the maximum dynamic IM function and the maximum repetitions of 20-m shuttle run (Ex) in the Yo-Yo intermittent recovery test were examined.”

Conclusion:

“Findings suggested that the specific IM warm-up in IMW may entail reduction in breathlessness sensation, partly attributable to the enhancement of dynamic IM functions, in subsequent exhaustive intermittent run and, in turn, improve the exercise tolerance.”

Therefore POWERbreathe Inspiratory Muscle Training can effectively be used to:

  • Warm-up the breathing muscles prior to rehearsal or performance

Read Effect of specific inspiratory muscle warm-up on intense intermittent run to exhaustion >

Effect of High-Intensity Inspiratory Muscle Training on Lung Volumes, Diaphragm Thickness, and Exercise Capacity in Subjects Who Are Healthy

“Previous investigations have demonstrated that a regimen of high-intensity inspiratory muscle training (IMT) resulted in changes in ventilatory function and exercise capacity in patients with chronic lung disease, although the effect of high-intensity IMT in subjects who are healthy is yet to be determined. The purpose of this study, therefore, was to examine whether high-intensity IMT resulted in changes in ventilatory function and exercise capacity in subjects who were healthy.”

Conclusion:

“The findings of this study suggest that high-intensity IMT results in increased contracted diaphragm thickness and increased lung volumes and exercise capacity in people who are healthy.”

Therefore POWERbreathe Inspiratory Muscle Training can effectively be used to:

  • Enhance the ability to inflate the lungs (take deeper breaths)

Read Effect of High-Intensity Inspiratory Muscle Training on Lung Volumes, Diaphragm Thickness, and Exercise Capacity in Subjects Who Are Healthy >

POWERbreathe Guide for Indoor Rowers

Written for Concept2 Limited by Eddie Fletcher of Fletcher Sport Science in collaboration with Professor McConnell, this guide provides all you need about:

  1. The importance of the breathing muscles to rowing
  2. How to train the inspiratory muscles
  3. Using POWERbreathe as part of the warm-up
  4. Warm-up pace guide

Read POWERbreathe Guide for Indoor Rowers >

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 >

The Influence Of Inspiratory Muscle Work History And Specific IMT Upon Human Limb Muscle Fatigue

“The purpose of this study was to assess the influence of the work history of the inspiratory muscles upon the fatigue characteristics of the plantar flexors. It was hypothesized that under conditions where the inspiratory muscle metaboreflex has been elicited, plantar flexors fatigue would be hastened due to peripheral vasoconstriction.”

Conclusion:

“The data are the first to provide evidence that the inspiratory muscle metaboreflex accelerates the rate of calf fatigue during plantar flexors, and that inspiratory muscle training attenuates this effect.”

Read The influence of inspiratory muscle work history and specific inspiratory muscle training upon human limb muscle fatigue >

Respiratory Muscle Energetics During Exercise In Healthy Subjects And Patients With COPD

“This article intended to answer the following:

  1. Does respiratory muscle fatigue affect alveolar ventilation (VE)
  2. May work and cost of breathing of primary and accessory respiratory muscles compete with locomotor muscles to blood supply and oxygen uptake
  3. What is the role of abnormality of O2 transport and utilization on the limitation of exercise tolerance in patients with COPD?

Read Respiratory muscle energetics during exercise in healthy subjects and patients with COPD >

Does Training Of Respiratory Muscles Affect Exercise Performance In Healthy Subjects?

This article asks, “Is there a physiologic rationale for respiratory muscle training effects on exercise performance?”

Conclusion:

“Recent studies provide evidence that respiratory muscle training improves exercise performance in well-controlled and rigorously designed studies utilizing exercise tests with the lowest coefficient of variation for repeated testing, appropriate outcome measures, and fitness of the participants. Further studies, however, are needed to define the mechanisms by which RMT improves exercise performance.”

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Influence Of Acute Inspiratory Loading Upon Diaphragm Motor-Evoked Potentials In Healthy Humans

“Acute prior activity of the inspiratory muscles can enhance inspiratory muscle strength and reduce effort perception during subsequent inspiratory efforts. However, the mechanisms subserving these changes are poorly understood.” This is what was investigated.

Conclusion:

“Data indicate that after inspiratory muscle loading, increased global inspiratory strength is accompanied by increased peripheral excitability and by a dampening of corticospinal excitability of the diaphragm.”

Read Influence Of Acute Inspiratory Loading Upon Diaphragm Motor-Evoked Potentials In Healthy Humans >

Effect Of Specific Inspiratory Muscle Warm-Up On intense Intermittent Run To Exhaustion

“In this test the effects of inspiratory muscle warm-up on the maximum dynamic inspiratory muscle function and the maximum repetitions of 20-m shuttle run in the Yo-Yo intermittent recovery test were examined.”

Conclusion:

“Findings suggested that the specific inspiratory muscle warm-up may entail reduction in breathlessness sensation, partly attributable to the enhancement of dynamic inspiratory muscle functions, in subsequent exhaustive intermittent run and, in turn, improve the exercise tolerance.”

Read Effect of specific inspiratory muscle warm-up on intense intermittent run to exhaustion >