Contribution of diaphragmatic-abdominal displacement to ventilation in supine man.

Wang, C S; Josenhans, W. T.

doi:10.1152/jappl.1971.31.4.576

Cited by 20 publications

(9 citation statements)

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“…This agrees with the suggestions of Mead et al [16] that the diaphragm is solely responsible for the tidal volume of quiet brea thing but disagrees with Wang and Josenhans [27] who thought that in supine females the diaphragm contributes somewhat less to the tidal vol ume of quiet breathing than in males, the smaller diaphragmatic contribu tion being compensated by activity of other respiratory muscles.…”

Section: Discussionsupporting

confidence: 75%

“…Already about three quarters of a century ago Sewall and P ollard [21] described that women use 'costal' breathing while the breathing pattern in men was 'abdominal'. W ang and J osenhans [27] recently found that diaphragmatic shortening contributed 60% of the tidal volume in supine subjects and that the contribution was small er in females than in males. These authors applied a modified ballistic method for measuring axial mass displacement [12].…”

Section: Introductionmentioning

confidence: 99%

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Relative Respiratory Contribution of the Rib Cage and the Abdomen in Males and Females with Special Regard to Posture

Fugl‐Meyer¹

1974

Respiration

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Differences in the relative contribution of the rib cage and the abdomen to the tidal volume of quiet breathing were found between two groups of healthy young females and males. The differences between the sexes displayed themselves in a lower functional residual capacity and a relatively greater rib cage contribution to the tidal volume of quiet breathing in females. These differences were observed both in the supine and at more upright body positions. The suggested explanation is based on anthropometrical details causing differences in the rib cage/abdominal compliance relationships as parts of the chest wall, and also having effect on the positions of the diaphragm.

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Section: Discussionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Relative Respiratory Contribution of the Rib Cage and the Abdomen in Males and Females with Special Regard to Posture

Fugl‐Meyer¹

1974

Respiration

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“…Even if the patient is extubated, it increases chances of atelectasis, pneumonia, and lung collapse. [17]…”

Section: Clinical Features and Diagnosismentioning

confidence: 99%

Diaphragmatic palsy after cardiac surgical procedures in patients with congenital heart

et al. 2010

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Paralysis of diaphragm on one or, exceptionally, both sides is a common cause of delayed recovery and excessive morbidity following pediatric cardiac surgery. The consequences of this complication after all forms of congenital heart surgery in newborns and young infants can be potentially serious. The impact of diaphragmatic palsy on the physiology after single ventricle palliations is particularly significant. It is necessary for all professionals taking care of children with heart disease to be familiar with the etiology, diagnosis, and management of this condition. Early recognition and prompt management of diaphragmatic palsy can potentially reduce the duration of mechanical ventilation and intensive care in those who develop this complication. This review summarizes the anatomy of the phrenic nerves, reasons behind the occurrence of diaphragmatic palsy, and suggests practical guidelines for management.

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“…The diaphragm muscle is responsible for approximately 50% of respiratory force, but this contribution varies with body position and exercise demands [11, 12]. Other muscle groups contribute significantly to respiration, especially when the primary breathing muscle is diseased, as it is in muscular dystrophy.…”

Section: Introductionmentioning

confidence: 99%

Cardiac function in muscular dystrophy associates with abdominal muscle pathology

Gardner

Swaggart

Kim³

et al. 2015

Journal of Neuromuscular Diseases

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Background The muscular dystrophies target muscle groups differentially. In mouse models of muscular dystrophy, notably the mdx model of Duchenne Muscular Dystrophy, the diaphragm muscle shows marked fibrosis and at an earlier age than other muscle groups, more reflective of the histopathology seen in human muscular dystrophy. Methods Using a mouse model of limb girdle muscular dystrophy, the Sgcg mouse, we compared muscle pathology across different muscle groups and heart. A cohort of nearly 200 Sgcg mice were studied using multiple measures of pathology including echocardiography, Evans blue dye uptake and hydroxyproline content in multiple muscle groups. Spearman rank correlations were determined among echocardiographic and pathological parameters. Findings The abdominal muscles were found to have more fibrosis than other muscle groups, including the diaphragm muscle. The abdominal muscles also had more Evans blue dye uptake than other muscle groups. The amount of diaphragm fibrosis was found to correlate positively with fibrosis in the left ventricle, and abdominal muscle fibrosis correlated with impaired left ventricular function. Fibrosis in the abdominal muscles negatively correlated with fibrosis in the diaphragm and right ventricles. Together these data reflect the recruitment of abdominal muscles as respiratory muscles in muscular dystrophy, a finding consistent with data from human patients.

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Contribution of diaphragmatic-abdominal displacement to ventilation in supine man.

Cited by 20 publications

References 0 publications

Relative Respiratory Contribution of the Rib Cage and the Abdomen in Males and Females with Special Regard to Posture

Relative Respiratory Contribution of the Rib Cage and the Abdomen in Males and Females with Special Regard to Posture

Diaphragmatic palsy after cardiac surgical procedures in patients with congenital heart

Cardiac function in muscular dystrophy associates with abdominal muscle pathology

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