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March 1, 1990Journal of Applied Physiology

Transversus abdominis muscle function in humans

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Population

6 normal subjects in the seated posture

Design

Other

Authors

ATAndré De TroyerMedical Council of CanadaMEMarc EstenneUniversité Libre de BruxellesVNVincent NinaneCentre Hospitalier Universitaire de Saint-Pierre

Discussion

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Implication

Preferential transversus abdominis recruitment at lower ventilations may refine expiratory muscle models; leaves open clinical relevance in hypercapnic patients.

Structured PICO

P
Population
6 normal subjects in the seated posture
I
Intervention
Voluntary efforts (expiration from functional residual capacity, speaking, expulsive maneuvers, isovolume 'belly-in' maneuvers), hyperoxic hypercapnia, and inspiratory elastic loading
O
Outcome
Electrical activity of the transversus abdominis muscle compared with the external oblique and rectus abdominissurrogate

The transversus abdominis is recruited preferentially to the superficial muscle layer of the abdominal wall during breathing, indicating a lower threshold for abdominal muscle recruitment during expiration than conventionally thought.

Cite This Study

Troyer et al. (1990) studied this question.

synapsesocial.com/papers/6a711b34f44fa9f079dee0aahttps://doi.org/10.1152/jappl.1990.68.3.1010
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Also Consider

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