Chest wall regional volumes in obese women

Barcelar, Jacqueline de Melo; Aliverti, Andréa; Melo, Talita Lourdes Lins de Barros; Dornelas, Camila Soares; Lima, C. S.; Reinaux, Cyda; Andrade, Armèle Dornelas de

doi:10.1016/j.resp.2013.07.016

Cited by 18 publications

(27 citation statements)

References 26 publications

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“…This was probably due to the fact that the two groups were similar in terms of BMI and other anthropometric parameters. It is important to note, however, that obese women present an altered lung and thoraco-abdominal function, characterized by a restrictive pattern, and abnormal thoraco-abdominal motion during spontaneous breathing compared to normal weight women, as shown by the comparison between the overall obese groups and controls in the present study, that confirms recent findings [18]. In obese women the largest contribution observed in the abdominal compartment during quiet breathing was different from that found in a study involving healthy female subjects with normal weight, where the prevalent contribution to tidal volume was instead in the two rib cage compartments [30].…”

Section: Discussionsupporting

confidence: 92%

“…We have recently shown, however, that in obese women during quiet breathing there is a good agreement between V CW variations measured by OEP and lung volume variations measured by integrating airflow measured at the mouth by a pneumotachograph [18]. In the present paper we now also show that IC values measured by the Wright respirometer are in a good agreement with IC CW values measured by OEP.…”

Section: Discussionsupporting

confidence: 77%

“…In obese women the largest contribution observed in the abdominal compartment during quiet breathing was different from that found in a study involving healthy female subjects with normal weight, where the prevalent contribution to tidal volume was instead in the two rib cage compartments [30]. It can be assumed that the predominant contribution of abdominal compartment is due to greater variation in tidal volume caused by the diaphragm and abdominal muscles in an attempt to offset the burden caused by the accumulation of fat in chest and abdomen [18].…”

Section: Discussioncontrasting

confidence: 70%

“…Recently, we have demonstrated that obese women are characterized not only by lung restriction, but also by an altered thoraco-abdominal pattern during spontaneous breathing [18]. In the present work we hypothesized that not only spontaneous breathing, but also the maximal expansion of the chest in the different thoraco-abdominal compartments is influenced by obesity.…”

Section: Introductionmentioning

confidence: 81%

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The Expansion of the Pulmonary Rib Cage during Breath Stacking Is Influenced by Age in Obese Women

Barcelar

Aliverti²,

Rattes³

et al. 2014

PLoS ONE

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ObjectiveTo analyze in obese women the acute effects of the breath stacking technique on thoraco-abdominal expansion.Design and MethodsNineteen obese women (BMI≥30 kg/m2) were evaluated by anthropometry, spirometry and maximal respiratory muscle pressures and successively analyzed by Opto-Electronic Plethysmography and a Wright respirometer during quiet breathing and breath stacking maneuvers and compared with a group of 15 normal-weighted healthy women. The acute effects of the maneuvers were assessed in terms of total and compartmental chest wall volumes at baseline, end of the breath stacking maneuver and after the maneuver. Obese subjects were successively classified into two groups, accordingly to the response during the maneuver, group 1 = prevalent rib cage or group 2 = abdominal expansion.ResultsAge was significantly lower in group 1 than group 2. When considering the two obese groups, FEV1 was lower and minute ventilation was higher only in group 2 compared to controls group. During breath stacking, inspiratory capacity was significant differences in obese subjects with a smaller expansion of the pulmonary rib cage and a greater expansion of the abdomen compared to controls and also between groups 1 and 2. A significant inverse linear relationship was found between age and inspiratory capacity of the pulmonary rib cage but not of the abdomen.ConclusionsIn obese women the maximal expansion of the rib cage and abdomen is influenced by age and breath stacking maneuver could be a possible therapy for preventing respiratory complications.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 77%

Section: Discussioncontrasting

confidence: 70%

Section: Introductionmentioning

confidence: 81%

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The Expansion of the Pulmonary Rib Cage during Breath Stacking Is Influenced by Age in Obese Women

Barcelar

Aliverti²,

Rattes³

et al. 2014

PLoS ONE

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“…Barcelar et al [70] investigated how both lung function and thoraco-abdominal volume variations during quiet breathing are altered in obese women. Obesity significantly reduced V RCp and increased V AB compared with normal weight.…”

Section: Breathing Evaluation Of Healthy Subjectsmentioning

confidence: 99%

Optoelectronic Plethysmography in Clinical Practice and Research: A Review

Massaroni

Carraro

Vianello³

et al. 2017

Respiration

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Background: Optoelectronic plethysmography (OEP) is a non-invasive motion capture method to measure chest wall movements and estimate lung volumes. Objectives: To provide an overview of the clinical findings and research applications of OEP in the assessment of breathing mechanics across populations of healthy and diseased individuals. Methods: A bibliographic research was performed with the terms “opto-electronic plethysmography,” “optoelectronic plethysmography,” and “optoelectronic plethysmograph” in 50 digital library and bibliographic search databases resulting in the selection of 170 studies. Results: OEP has been extensively employed in studies looking at chest wall kinematics and volume changes in chest wall compartments in healthy subjects in relation to age, gender, weight, posture, and different physiological conditions. In infants, OEP has been demonstrated to be a tool to assess disease severity and the response to pharmacological interventions. In chronic obstructive pulmonary disease patients, OEP has been used to test if patients can dynamically hyperinflate or deflate their lungs during exercise. In neuromuscular patients, respiratory muscle strength and chest kinematics have been analyzed. A widespread application of OEP is in tailoring post-operative pulmonary rehabilitation as well as in monitoring volume increases and muscle contributions during exercise. Conclusions: OEP is an accurate and validated method of measuring lung volumes and chest wall movements. OEP is an appropriate alternative method to monitor and analyze respiratory patterns in children, adults, and patients with respiratory diseases. OEP may be used in the future to contribute to improvements in the therapeutic strategies for respiratory conditions.

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Optoelectronic Plethysmography: Principles of Measurements and Recent Use in Respiratory Medicine

Aliverti

Pedotti

2014

Mechanics of Breathing

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Chest wall regional volumes in obese women

Cited by 18 publications

References 26 publications

The Expansion of the Pulmonary Rib Cage during Breath Stacking Is Influenced by Age in Obese Women

The Expansion of the Pulmonary Rib Cage during Breath Stacking Is Influenced by Age in Obese Women

Optoelectronic Plethysmography in Clinical Practice and Research: A Review

Optoelectronic Plethysmography: Principles of Measurements and Recent Use in Respiratory Medicine

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