1990
DOI: 10.1152/jappl.1990.68.3.1010
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Transversus abdominis muscle function in humans

Abstract: We used a high-resolution ultrasound to make electrical recordings from the transversus abdominis muscle in humans. The behavior of this muscle was then compared with that of the external oblique and rectus abdominis in six normal subjects in the seated posture. During voluntary efforts such as expiration from functional residual capacity, speaking, expulsive maneuvers, and isovolume "belly-in" maneuvers, the transversus in general contracted together with the external oblique and the rectus abdominis. In cont… Show more

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Cited by 255 publications
(182 citation statements)
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“…TrA and IO muscle thickness was measured as the distance between the superficial and deep hyperechoic fasciae. To help control for the influence of respiration on the muscle thickness of the lateral abdominal muscles 4 and for consistency across participants, images were collected immediately at the end of exhalation, as determined by visual inspection of the abdomen. Additionally, a transparent vertical line placed in the middle of the display was used to assist with standardized placement of the measurement line in relation to the muscle fascia.…”
Section: Exercise Selectionmentioning
confidence: 99%
“…TrA and IO muscle thickness was measured as the distance between the superficial and deep hyperechoic fasciae. To help control for the influence of respiration on the muscle thickness of the lateral abdominal muscles 4 and for consistency across participants, images were collected immediately at the end of exhalation, as determined by visual inspection of the abdomen. Additionally, a transparent vertical line placed in the middle of the display was used to assist with standardized placement of the measurement line in relation to the muscle fascia.…”
Section: Exercise Selectionmentioning
confidence: 99%
“…During highintensity exercise, when the minute ventilation increase, the work of abdominal muscles is required to increase expiratory flow rate and tidal volume [1]. The enhanced abdominal muscles activity during exercise helps expira-of respiratory muscle training on pulmonary function and physical performance in both healthy and cardiopulmonary disease populations [3][4][5].…”
mentioning
confidence: 99%
“…(19,20,21,22,23) Recent evidence suggests that diaphragm activity may be associated with voluntary Contraction of the transverses abdominis by drawing in the abdominal wall. Transversus abdominis can influence spinal stiffness through its contribution to pressure and fascial tension.…”
Section: Figure 1: Panjabi's Model Of Spinal Stabilizationmentioning
confidence: 99%