Non-Invasive Ventilation Applied for Recovery from Exercise-Induced Diaphragmatic Fatigue

Kabitz, Hans‐Joachim; Walker, David; Prettin, Stephan; Walterspacher, Stephan; Sonntag, Florian; Dreher, Michael; Windisch, Wolfram

doi:10.2174/1874306400802010016

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…One possible reason we did not find RMF is the rest intervals in the HIT protocols allowed for the respiratory muscles to recover and delay the onset of fatigue. This is not likely and only supported by 1 study, to our knowledge, that showed that respiratory muscles can recover from fatigue in 1.5 minutes postexercise (22). The majority of research studies show a reduction in maximal mouth pressures beyond 10 minutes after exercise until exhaustion in moderately active subjects (26).…”

Section: Discussionmentioning

confidence: 87%

Absence of Respiratory Muscle Fatigue in High-Intensity Continuous or Interval Cycling Exercise

Kurti

Smith²,

Emerson³

et al. 2015

Journal of Strength and Conditioning Research

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Respiratory muscle fatigue (RMF) occurs during prolonged exercise (∼15-20 minutes) at >85% V[Combining Dot Above]O2max. However, RMF has been reported to occur in ∼3-6 minutes in various modes of exercise at a high intensity. It is not known if continuous cycling exercise vs. repeated bouts of high-intensity interval training (HIT) at >85% V[Combining Dot Above]O2max will lead to RMF. We hypothesized that RMF would occur after a constant load test and would be present before end exercise in an HIT protocol. Eight moderately active healthy men (21.7 ± 1.7 years; 181.3 ± 5.2 cm; 81.3 ± 2.3 kg) completed a V[Combining Dot Above]O2max test on a cycle ergometer. Subjects then completed 2 bouts of HIT (7 × 1 minute, 2-minute recovery between intervals) and 3 bouts of continuous exercise (CE) tests at 90% of peak power (determined from an incremental exercise test to exhaustion). Maximal inspiratory pressure (PIMAX) and expiratory pressure (PEMAX) were measured pre- and post-exercise for both HIT and CE and after each interval during HIT. Decreases in postexercise PIMAX and PEMAX compared with baseline were used to determine RMF. There were no differences (p > 0.05) in PIMAX or PEMAX pre- to post-exercise for HIT (PIMAX pre: 134 ± 51, post: 135 ± 50 cmH2O; PEMAX pre: 143 ± 41, post: 148 ± 46 cmH2O) or CE (PIMAX pre: 135 ± 54, post: 133 ± 52 cmH2O; PEMAX pre: 146 ± 46, post: 148 ± 46 cmH2O) indicating RMF was not present following CE and HIT. These data suggest that repeated high-intensity cycling exercise at 90% peak power in a CE or HIT protocol does not lead to RMF.

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Section: Discussionmentioning

confidence: 87%

Absence of Respiratory Muscle Fatigue in High-Intensity Continuous or Interval Cycling Exercise

Kurti

Smith²,

Emerson³

et al. 2015

Journal of Strength and Conditioning Research

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“…Although volitional measures of fatigue may be confounded by the presence of central fatigue, the decrease in end-inspiratory V rc,p with no change in the other two compartments is considered an independent indicator of inspiratory rib cage muscle fatigue. Furthermore, the few studies assessing respiratory muscle fatigue after exercise with both measurement of oesophageal and gastric pressure during nerve stimulation and during voluntary respiratory manoeuvres show a decrease in twitch pressures with smaller decreases (or no significant change) in pressures during voluntary manoeuvres (Johnson et al, 1993;Mador et al, 1993;Taylor et al, 2006;Kabitz et al, 2008;Taylor and Romer 2008).…”

Section: Limitationsmentioning

confidence: 99%

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

Illi¹,

Hostettler²,

Aliverti³

et al. 2013

Respiratory Physiology & Neurobiology

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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

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The assessment of inspiratory muscle fatigue in healthy individuals: A systematic review

Janssens

Brumagne

McConnell

et al. 2013

Respiratory Medicine

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Inspiratory muscle fatigue (IMF) may contribute to the development of exercise limitation and respiratory failure. Identifying fatigue of the inspiratory muscles requires a rigorous and integrative methodological approach. However, there is no consensus about an optimal protocol to induce and assess the fatigability of the inspiratory muscles. A systematic review was performed to identify, evaluate, and summarize the literature related to the assessment of induced IMF in healthy individuals. The aim was to identify factors that are related consistently to IMF, as well as to suggest possible assessment methods. MEDLINE and EMBASE were searched for relevant articles until February 2012. Only studies with a quantitative description of assessment and outcome were included. The search yielded 460 citations and a total of 77 studies were included. Inspiratory muscle fatigue was produced acutely by inspiratory resistive loading (IRL), whole body exercise (WBE), hyperpnea, or WBE combined with IRL, and under normocapnic, hypoxic or hypercapnic conditions. To detect IMF, most studies (64%) used phrenic nerve stimulation, 44% used a maximal voluntary inspiratory maneuver and the remainder used electromyography. The heterogeneity of the published reports precluded a quantitative analysis. Inspiratory resistive loadings at intensities of 60-80% of maximum, and cycling at 85% of maximum were found to produce IMF most consistently. Hypoxic or hypercapnic conditions, and WBE combined with IRL, exacerbated IMF. The specific outcome measures employed to detect IMF, the magnitude of their change, as well as their functional significance, are ultimately dependent upon the research question being addressed.

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Non-Invasive Ventilation Applied for Recovery from Exercise-Induced Diaphragmatic Fatigue

Cited by 3 publications

References 30 publications

Absence of Respiratory Muscle Fatigue in High-Intensity Continuous or Interval Cycling Exercise

Absence of Respiratory Muscle Fatigue in High-Intensity Continuous or Interval Cycling Exercise

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

The assessment of inspiratory muscle fatigue in healthy individuals: A systematic review

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