Loading Of Trained Inspiratory Muscles Speeds Lactate Recovery Kinetics

“The purpose of this study was to investigate the effects of inspiratory threshold loading and inspiratory muscle training (IMT) on blood lactate concentration and acid-base balance after maximal incremental cycling.”

Conclusion:

After maximal exercise, inspiratory threshold loading affected lactate recovery kinetics only after IMT. Our data support the notion that the inspiratory muscles are capable of lactate clearance that increases strong ion difference [SID] and reduces plasma [H+]. These effects may facilitate subsequent bouts of high-intensity exercise.”

Read Loading of trained inspiratory muscles speeds lactate recovery kinetics >

Abdominal Surgery

‘Pre-Operative IMT Preserves Postoperative Inspiratory Muscle Strength Following Major Abdominal Surgery’

“The aim of this pilot study was to assess the effect of pre-operative inspiratory muscle training (IMT) on respiratory variables in patients undergoing major abdominal surgery.”

Conclusion:

“Pre-operative specific IMT improves (maximum inspiratory pressure (MIP) pre-operatively and preserves it postoperatively. Further studies are required to establish if this is associated with reduced pulmonary complications.”

Read Pre-operative inspiratory muscle training preserves postoperative inspiratory muscle strength following major abdominal surgery – a randomised pilot study >

Inspiratory Muscle Training Improves 100 and 200m Swimming Performance

“Inspiratory muscle training (IMT) has been shown to improve time trial performance in competitive athletes across a range of sports. Surprisingly, however, the effect of specific IMT on surface swimming performance remains un-investigated.”

Conclusion:

“6 weeks of IMT has a small positive effect on swimming performance in club-level trained swimmers in events shorter than 400m.”

Read Inspiratory muscle training improves 100 and 200 m swimming performance >

Inspiratory Muscle Training, Altitude, and Arterial Oxygen Desaturation: A Preliminary Investigation

“Specific inspiratory muscle training (IMT) has been shown to significantly attenuate the fall in arterial oxygen saturation (SpO2) during exhaustive exercise while breathing a hypoxic gas mixture of 14% oxygen. The aim of this study was to assess the impact of IMT on resting oxygen saturation over a range of altitudes in healthy individuals.”

Conclusion:

“IMT can attenuate the fall in resting oxygen saturation, but only at altitudes of 4880m and above. Conversely, IMT had no effect on resting levels of dyspnea as measured by the Borg Score.”

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Inspiratory Muscle Warm-Up And IMT: Separate And Combined Effects On Intermittent Running To Exhaustion

“This study examined the independent and combined effects of an inspiratory muscle warm-up and inspiratory muscle training on intermittent running to exhaustion.”

Conclusion:

“Inspiratory muscle training and inspiratory muscle warm-up can both increase running distance independently, but the greatest increase is observed when they are combined.”

Read Inspiratory muscle warm-up and inspiratory muscle training: Separate and combined effects on intermittent running to exhaustion >

IMT Enhances Pulmonary O2 Uptake Kinetics And High-Intensity Exercise Tolerance In Humans

Fatigue of the respiratory muscles during intense exercise might compromise leg blood flow, thereby constraining oxygen uptake ( O2) and limiting exercise tolerance. This study tested the hypothesis that inspiratory muscle training (IMT) would reduce inspiratory muscle fatigue, speed O2 kinetics and enhance exercise tolerance.

Conclusion:

“Specific training of the inspiratory muscles increased baseline MIP, reduced estimated inspiratory muscle fatigue during severe and maximal-intensity exercise, and enhanced O2 dynamics and exercise tolerance…

“Pressure-threshold IMT appears to present a practical and efficacious means for modulating the O2 response to high-intensity exercise in healthy young people…”

“IMT therefore appears to have considerable potential as an adjunct to physical training for the enhancement of exercise performance.”

Read IMT enhances pulmonary O2 uptake kinetics and high-intensity exercise tolerance in humans >