Respiratory muscle training reduces the work of breathing at depth

Ray, Andrew D.; Pendergast, David R.; Lundgren, Ceg

doi:10.1007/s00421-009-1275-3

Cited by 38 publications

(60 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the present study failed to demonstrate a significant increase in PImax, which may be due to small sample size, the significant increase in MVV may indicate that sit-ups improve the efficiency of ventilation by increasing respiratory muscle strength. Prior studies have reported that respiratory muscle training improve pulmonary function [17,18]. However, these improvements were produced by a traditional respiratory muscle-training device.…”

Section: Discussionmentioning

confidence: 99%

Effects of Abdominal Exercise on Respiratory Muscles and Pulmonary Function in Healthy Males

Chan¹,

Chen²

2018

IJPR

View full text Add to dashboard Cite

Background: Abdominal muscle is the major expiratory muscle and play an important role in ventilation. The purpose of this study is to examine the effects of abdominal muscle training on pulmonary function. Subjects were randomly assigned to low (n=7), moderate (n=7), and high intensity (n=7) groups and performed sit-up exercises at for 6 weeks. The intensity was set at 40% (low), and 80% (high) of the numbers of sit-ups they performed during 1-min sit-up test. Baseline and post-training measurements included pulmonary function, maximal inspiratory (PImax) and expiratory pressure (PEmax), and 1-minute sit-up test. Conclusions:The abdominal muscle training may enhance the ability of maximal ventilation through increasing expiratory muscle strength.

show abstract

Section: Discussionmentioning

confidence: 99%

Effects of Abdominal Exercise on Respiratory Muscles and Pulmonary Function in Healthy Males

Chan¹,

Chen²

2018

IJPR

View full text Add to dashboard Cite

show abstract

“…This in turn may prevent the development of rapid and shallow breathing as shown in some (Spengler et al, 1999;Volianitis et al, 2001;Amonette and Dupler 2002;Wylegala et al, 2007;Esposito et al, 2010) but not in other (Kohl et al, 1997;Stuessi et al, 2001;Volianitis et al, 2001;McMahon et al, 2002;Holm et al, 2004;Griffiths and McConnell 2007;Verges et al, 2007;Brown et al, 2010;Ray et al, 2010) studies. To gain further insights into potential mechanisms of maintaining tidal volume after respiratory muscle training, we investigated respiratory muscle recruitment during a single respiratory muscle endurance training session.…”

Section: Introductionmentioning

confidence: 96%

Compartmental chest wall volume changes during volitional hyperpnoea with constant tidal volume in healthy individuals

Illi¹,

Hostettler²,

Aliverti³

et al. 2013

Respiratory Physiology & Neurobiology

View full text Add to dashboard Cite

Prolonged high-intensity ventilation is associated with the development of rapid shallow breathing with decreased end-inspiratory volumes of all chest wall compartments. During respiratory muscle endurance training using normocapnic hyperpnoea, tidal volume (V(T)) is normally kept constant. The aim of this study was to investigate possible changes in muscle recruitment during constant-V(T) hyperpnoea, to assess potential mechanisms related to rapid shallow breathing. Ten healthy subjects performed 1h of normocapnic hyperpnoea at 70% of maximal voluntary ventilation. Chest wall volume changes were assessed by optoelectronic plethysmography. End-inspiratory (1.08 ± 0.18 versus 0.96 ± 0.27 l, p=0.017) and end-expiratory volumes (-0.13 ± 0.15 versus -0.31 ± 0.19 l, p=0.007) of the pulmonary ribcage decreased significantly and lung function and respiratory muscle strength were reduced (all p<0.05). Since with forced, constant V(T) only the inspiratory rib cage muscles were unable to sustain end-inspiratory volume of their compartment, inspiratory rib cage muscles are the most likely candidate responsible for the development of rapid shallow breathing. KEYWORDSRespiratory muscle recruitment, respiratory muscle fatigue, rapid shallow breathing 2

show abstract

“…Recent work has established that respiratory muscle fatigue may limit sustained sub-maximal exercise endurance in environments where there is an increased work of breathing (WOB) [1,2,3]. One such environment is encountered during diving where a pressure compensated breathing system is required to adjust for hydrostatic pressure, which increases with depth.…”

Section: Introductionmentioning

confidence: 99%

“…This produces static lung loading (SLL) [4], usually negative, and requires greater pressure generation by the diver. In fact exercise endurance is compromised at depth [1,2,3,5,6], and the effect is greater as the depth increases [1,2,3]. The reduced exercise capacity is associated with the subject being unable to sustain tidal volume, while minute ventilation (⩒ E ) increases due to respiratory compensation for metabolic acidosis [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…In fact exercise endurance is compromised at depth [1,2,3,5,6], and the effect is greater as the depth increases [1,2,3]. The reduced exercise capacity is associated with the subject being unable to sustain tidal volume, while minute ventilation (⩒ E ) increases due to respiratory compensation for metabolic acidosis [2,3]. This results in an unsustainable increased energy cost of ventilation [5,7] which results in a reduction in blood flow to the locomotor muscles leading to reduced exercise performance [8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rest and exercise work of breathing calculated from alveolar pressure-volume loops, submersed and at depth

Pendergast¹,

Wach²,

Held³

2017

Lung Breath J

View full text Add to dashboard Cite

Exercise capacity is decreased in submersion and depth. A possible explanation for this is an increase in the work of breathing (WOB) due to increased effort to move the chest, increased breathing resistance, and increased gas density. WOB has been measured by the esophageal balloon technique, although this method does not measure alveolar pressure. One purpose of the present study was to test a modification of the P .1 interrupter technique that measures alveolar pressure (P A ) based on mouth pressure after a rapid interruption of flow by insertion of a wedge in the air supply as an alternative method of quantifying WOB and WOB per minute (POB) in the diving environment. A second purpose was to use this method to determine WOB submersed and at pressure. It was hypothesized that both submersion and depth would increase the WOB and POB. P A -volume loops were generated based on the P .1 method and WOB and POB calculated for both rest and exercise in 10 healthy male subjects during submersion and at depth. These results were compared to control conditions. Ventilation was increased in submersion, but was not significantly affected by depth. POB was found to be significantly increased in submersion, and further increased as a function of depth. The increased POB in these conditions were observed both at rest and during exercise, both during inspiration and expiration. The POB determined by the P .1 interrupter technique confirmed previous studies that used the esophageal balloon technique, with accurate determination of alveolar pressure and pressure-volume loops.

show abstract

Respiratory muscle training reduces the work of breathing at depth

Cited by 38 publications

References 30 publications

Effects of Abdominal Exercise on Respiratory Muscles and Pulmonary Function in Healthy Males

Effects of Abdominal Exercise on Respiratory Muscles and Pulmonary Function in Healthy Males

Compartmental chest wall volume changes during volitional hyperpnoea with constant tidal volume in healthy individuals

Rest and exercise work of breathing calculated from alveolar pressure-volume loops, submersed and at depth

Contact Info

Product

Resources

About