Results 151 to 160 of about 102,612 (175)

Fibre types in human abdominal muscles

Acta Physiologica Scandinavica, 1979
Histochemical muscle fibre composition was studied in biopsies from the four different muscles of the abdominal wall (rectus abdominis, RA, obliquus externus, OE, obliquus internus, OI, and transversus abdominis, Tr) in 13 normal human subjects (9 females and 4 males, age 24–55 years) undergoing gall‐bladder surgery.
Alf Thorstensson, Tom Häggmark
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Phasic stretch reflex of the abdominal muscles

Experimental Neurology, 1986
This analysis of the abdominal stretch reflex (ASR) evoked by a tap to the abdomen was designed to explore how abdominal motoneurons process signals from respiratory and nonrespiratory sources. We recorded surface EMGs from the external and internal oblique muscles in standing subjects. Amplitudes of the abdominal stretch reflex varied despite constant
Chen-Fu Shaw, Tetsuri Kondo, Beverly Bishop   +2 more
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TRANSVERSE AND MUSCLE-SPLITTING ABDOMINAL INCISIONS

Archives of Surgery, 1953
A RECENT survey of over 500 certified surgeons in this country revealed that only about 26% are employing transverse or muscle-splitting abdominal incisions for the common types of abdominal operations.1It appears therefore that the majority of surgeons and most of the other physicians performing surgery are using midline or paramedian incisions.
Irving A. Katz, Louis T. Palumbo
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Stretch reflexes in human abdominal muscles

Experimental Brain Research, 2004
Homonymous and heteronymous reflex connections of the abdominal muscles were investigated by the application of a tap to the muscle belly and observation of surface electromyographic responses. Reflex responses of the following abdominal muscles were investigated both ipsilateral and contralateral to the tap: rectus abdominis (RA), external oblique (EO)
Beith, I D, Harrison, P J
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Muscle relaxation during abdominal surgery

The American Journal of Surgery, 1980
A self-retaining surgical retractor has been modified by incorporating a strain gauge device linked to a digital display meter. This instrument is capable of continuously monitoring abdominal wall relaxation during surgery and should prove useful in a variety of routine and investigative procedures.
Edward Guibarra, William Davies
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Mechanics of the abdominal muscles in rabbits and dogs

Respiration Physiology, 1994
In anesthetized, apneic rabbits and dogs, direct tetanic stimulations of the abdominal muscles (AMS) were performed at different tracheal pressures (Ptr) in the supine and upright posture. Lung volume (V), esophageal (Pes) and abdominal pressure (Pab), circumference of the upper and lower lung apposed rib cage (Crc, u and Crc, l) and of the abdomen ...
Edi Prandi, Edgardo D'Angelo, Francois Bellemare   +2 more
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The role of the abdominal muscles in breathing [PDF]

, 1991
Nine tracheotomized dogs were chronically instrumented with sonomicrometer length measurement transducers and fine wire EMG electrodes in each of the four abdominal muscles: transversus abdominis (TA), internal oblique (IO), external oblique (EO) and rectus abdominis (RA).
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Intercostal and abdominal muscle afferent influence on caudal medullary expiratory neurons that drive abdominal muscles

Experimental Brain Research, 1989
Our objective was to determine if caudal ventral respiratory group (VRG) expiratory (E) neurons that drive abdominal expiratory motoneurons in the lumbar cord respond to intercostal and lumbar nerve afferent stimulation. Results showed that 92% of medullary E-neurons that were antidromically activated from the upper lumbar cord reduced their activity ...
Roger Shannon, Bruce G. Lindsey, Y. M. Hernandez   +2 more
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Relative efficiency of abdominal muscles in spine stability

Computer Methods in Biomechanics and Biomedical Engineering, 2008
Using an iterative kinematics-driven nonlinear finite element model, relative efficiency of individual abdominal muscles in spinal stability in upright standing posture was investigated. Effect of load height on stability and muscle activities was also computed under different coactivity levels in abdominal muscles.
Aboulfazl Shirazi-Adl, Navid Arjmand, Mohamad Parnianpour   +2 more
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Rectus Abdominal Muscles Pulled by Coughing

JAMA: The Journal of the American Medical Association, 1972
To the Editor.— While practicing in Yuma, Ariz, I have seen two patients in the last six months who presented with pulled rectus abdominal muscle insertions over the symphysis pubis. Careful questioning of both patients revealed no history of trauma, but both patients had experienced antecedent, prolonged paroxysms of coughing.
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