The Effect Of Inspiratory Muscle Training On High-Intensity, Intermittent Running Performance To Exhaustion

“This studied the effects of inspiratory muscle training (IMT) on maximal 20m shuttle run performance during Yo-Yo intermittent recovery test and on the physiological and perceptual responses to the running test were examined.“

Conclusion:

“Findings suggest that although both inspiratory muscle training and warm-up improve the tolerance of intense intermittent exercise, the underlying mechanisms may be different.”

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Concurrent inspiratory muscle and cardiovascular training improves both perceptions of effort and 5000-m running performance

“This study examined whether inspiratory muscle training (IMT) is a useful additional training aid with which to augment cardiovascular exercise training adaptations.”

Conclusion:

“The addition of IMT to a cardiovascular training programme augments 5000-m running performance but exerts no additional influence over VO2 max compared with a cardiovascular-training group. This is probably due to IMT-induced reductions in perceived effort at high ventilatory rates which is of greater consequence to longer duration time-trial performances than incremental tests of VO2 max.”

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Inspiratory Muscle Training Improves Shuttle Run Performance in Healthy Subjects

“The purpose of this study was to assess the use of computer-generated fixed-load incremental Respiratory Muscle Training (RMT) produced by the performance of repeated sustained sub-maximal inspiratory efforts with progressively reduced recovery times in healthy volunteers.”

Conclusion:

“Incremental respiratory endurance-based respiratory muscle training set at 80% of peak through range increases respiratory muscle strength, single-breath work capacity and respiratory muscle endurance and that these improvements result in reduced levels of breathlessness, an increase in predicted VO2 max and a perceived improvement in sports performance.”

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Resistive Respiratory Muscle Training Improves And Maintains Endurance Swimming Performance In Divers

“In comparison to exercise on land, respiratory work during underwater exercise is increased due to the hydrostatic pressure differences across the chest as well as increased flow resistive respiratory work.”

“It has recently been shown in healthy individuals that ventilatory limitations may cause a reduction of maximal exercise performance on land. The weakened exercise capacity has been attributed to a reduction in locomotor muscle oxygen transport secondary to diminished locomotor muscle blood flow. In several studies on land, respiratory muscle fatigue has been reported as a contributing factor to reduced maximal and endurance exercise performance. These same factors may also limit exercise performance in divers.

Conclusion:

“The major findings of the present study were that 30 minutes of resistance respiratory muscle training carried out three or five days per week for four weeks substantially improved fin swimming endurance (at 70-75%V. O ) and that similar improvements in respiratory muscle performance were obtained.”

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Respiratory muscle training improves swimming endurance at depth

“Respiratory muscle training has been shown to improve divers swimming endurance at 4 feet of depth; however, its effectiveness at greater depths, where gas density and the work of breathing are substantially elevated has not been studied. The purpose of this study was to examine the effects of resistance respiratory muscle training on respiratory function and swimming endurance at 55 feet of depth.”

Conclusion:

“Results suggest respiratory muscle fatigue limits swimming endurance at depth as well as at the surface and resistance respiratory muscle training improves performance.”

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Occurrence of Core Muscle Fatigue During High-Intensity Running Exercise and its Limitation to Performance

“The purpose of this study was to investigate the occurrence of core muscle fatigue during high-intensity running exercise and its limitation to exercise performance. A secondary aim was to investigate whether respiratory muscle work performed during intense running periods, would contribute to core muscle fatigue.”

Conclusion:

“Core muscle function in endurance runners subsequent to intense running to exhaustion was impaired with fatigue. With the preceded core muscle fatigue workout, the endurance capacity for performing intense running was reduced. In mimicking the respiratory responses recorded during intense running while the runners were standing upright and free from whole-body exercise, core muscle function decreased.

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Inspiratory Muscle Training: A Simple Cost-Effective Treatment For Inspiratory Stridor

“This case study describes the support given to a British elite athlete in the build up to the 2004 Athens Olympic Games. The athlete had complained of breathing symptoms during high intensity training that led to a reduction in performance and premature cessation of training… Inspiratory muscle training (IMT) was implemented to attenuate the inspiratory stridor.”

Result:

“Following an 11-week Inspiratory Muscle Training programme, the athlete had a 31% increase in mouth inspiratory pressure and a reduction in recovery between high intensity sprints. The athlete reported a precipitous fall in symptoms and was able to complete high intensity training without symptoms. This case shows that IMT is a suitable cost-effective intervention for athletes who present with inspiratory stridor.”

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Development And Evaluation Of A Pressure Threshold Inspiratory Muscle Trainer For Use In The Context Of Sports Performance

“Inspiratory muscle training (IMT) became widespread, particularly in a clinical context, and at the time of this research a pressure threshold training device suitable for training the inspiratory muscles of healthy humans did not exist. The purpose of this paper was to document the design and development of such a device – the POWERbreathe.

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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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Inspiratory Muscle Training And Endurance: A Central Metabolic Control Perspective

“This commentary examines the pertinent research and practical performance implications of Inspiratory Muscle Training from the holistic perspective of complex central metabolic control.”

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