UNILATERAL ABSENCE OF THE EXTERNAL OBLIQUE MUSCLE WITH HYPOPLASIA OF THE RECTUS ABDOMINIS MUSCLE IN A PATIENT WITH POLAND SYNDROME

2002 ◽  
Vol 110 (7) ◽  
pp. 1802-1803 ◽  
Author(s):  
J. Michael Drever ◽  
Jorge Zavala
Keyword(s):  
Rectus Abdominis ◽  
Oblique Muscle ◽  
Poland Syndrome ◽  
Rectus Abdominis Muscle ◽  
External Oblique Muscle ◽  
External Oblique

scholarly journals Quantification of the Differences in Electromyographic Activity Magnitude Between the Upper and Lower Portions of the Rectus Abdominis Muscle During Selected Trunk Exercises

2001 ◽  
Vol 81 (5) ◽  
pp. 1096-1101 ◽  
Author(s):  
Gregory J Lehman ◽  
Stuart M McGill
Keyword(s):  
Muscle Activity ◽  
Abdominal Muscle ◽  
Rectus Abdominis ◽  
Oblique Muscle ◽  
Emg Activity ◽  
Electromyographic Activity ◽  
Rectus Abdominis Muscle ◽  
Emg Signal ◽  
External Oblique Muscle ◽  
External Oblique

Abstract Background and Purpose. Controversy exists around exercises and clinical tests that attempt to differentially activate the upper or lower portions of the rectus abdominis muscle. The purpose of this study was to assess the activation of the upper and lower portions of the rectus abdominis muscle during a variety of abdominal muscle contractions. Subjects. Subjects (N=11) were selected from a university population for athletic ability and low subcutaneous fat to optimize electromyographic (EMG) signal collection. Methods. Controlling for spine curvature, range of motion, and posture (and, therefore, muscle length), EMG activity of the external oblique muscle and upper and lower portions of rectus abdominis muscle was measured during the isometric portion of curl-ups, abdominal muscle lifts, leg raises, and restricted or attempted leg raises and curl-ups. A one-way repeated-measures analysis of variance was used to test for differences in activity between exercises in the external oblique and rectus abdominis muscles as well as between the portions of the rectus abdominis muscle. Results. No differences in muscle activity were found between the upper and lower portions of the rectus abdominis muscle within and between exercises. External oblique muscle activity, however, showed differences between exercises. Discussion and Conclusion. Normalizing the EMG signal led the authors to believe that the differences between the portions of the rectus abdominis muscle are small and may lack clinical or therapeutic relevance.

scholarly journals Abdominal Muscle Response During Curl-ups on Both Stable and Labile Surfaces

2000 ◽  
Vol 80 (6) ◽  
pp. 564-569 ◽  
Author(s):  
Francisco J Vera-Garcia ◽  
Sylvain G Grenier ◽  
Stuart M McGill
Keyword(s):  
Control System ◽  
Muscle Activity ◽  
Abdominal Muscle ◽  
Oblique Muscle ◽  
Low Back ◽  
Rectus Abdominis Muscle ◽  
External Oblique Muscle ◽  
Motor Control System ◽  
The Subject ◽  
External Oblique

Abstract Background and Purpose. With the current interest in stability training for the injured low back, the use of labile (movable) surfaces, underneath the subject, to challenge the motor control system is becoming more popular. Little is known about the modulating effects of these surfaces on muscle activity. The purpose of this study was to establish the degree of modulating influence of the type of surface (whether stable or labile) on the mechanics of the abdominal wall. In this study, the amplitude of muscle activity together with the way that the muscles coactivated due to the type of surface under the subject were of interest. Subjects. Eight men (mean age=23.3 years [SD=4.3], mean height=177.6 cm [SD=3.4], mean weight=72.6 kg [SD=8.7]) volunteered to participate in the study. All subjects were in good health and reported no incidence of acute or chronic low back injury or prolonged back pain prior to this experiment. Methods. All subjects were requested to perform 4 different curl-up exercises—1 on a stable surface and the other 3 on varying labile surfaces. Electromyographic signals were recorded from 4 different abdominal sites on the right and left sides of the body and normalized to maximal voluntary contraction (MVC) amplitudes. Results. Performing curl-up exercises on labile surfaces increased abdominal muscle activity (eg, for curl-up on a stable surface, rectus abdominis muscle activity was 21% of MVC and external oblique muscle activity was 5% of MVC; for curl-up with the upper torso on a labile ball, rectus abdominis muscle activity was 35% of MVC and external oblique muscle activity was 10% of MVC). Furthermore, it appears that increases in external oblique muscle activity were larger than those of other abdominal muscles. Conclusion and Discussion. Performing curl-ups on labile surfaces changes both the level of muscle activity and the way that the muscles coactivate to stabilize the spine and the whole body. This finding suggests a much higher demand on the motor control system, which may be desirable for specific stages in a rehabilitation program.

Sphincteroplasty with aponeurosis

1927 ◽  
Vol 23 (4) ◽  
pp. 467-467
Author(s):  
I. Tsimkhes
Keyword(s):  
Inguinal Hernia ◽  
Operative Treatment ◽  
Oblique Muscle ◽  
Medial Side ◽  
External Oblique Muscle ◽  
External Oblique

After the examination of sphincteroplasty as a method of operative treatment of inguinal hernia, Bleek, based on his own experience (12 cases), suggests that after exposing the aponeurosis of the external oblique muscle, it should be dissected in the usual way, making two parallel incisions immediately next to the pouparticular ligament and on the medial side.

scholarly journals A rare case of Spigelian hernia penetrating the external oblique muscle

2013 ◽  
Vol 2 (2) ◽  
Author(s):  
T Mariolis-Sapsakos ◽  
V Kalles ◽  
I Papapanagiotou ◽  
A Mekras ◽  
K Birbas ◽  
...  
Keyword(s):  
Rare Case ◽  
Spigelian Hernia ◽  
Oblique Muscle ◽  
External Oblique Muscle ◽  
External Oblique

scholarly journals Trunk Muscle Activity in One- and Two-Armed American Kettlebell Swing in Resistance-Trained Men

2019 ◽  
Vol 03 (01) ◽  
pp. E12-E18
Author(s):  
Vidar Andersen ◽  
Marius Fimland ◽  
Atle Saeterbakken
Keyword(s):  
Muscle Activation ◽  
Surface Emg ◽  
Contralateral Side ◽  
Trunk Muscle ◽  
Rectus Abdominis ◽  
Erector Spinae ◽  
Oblique Muscle ◽  
Ipsilateral Side ◽  
External Oblique ◽  
The One

AbstractThe aim of the study was to compare the one-armed vs. two-armed American kettlebell swing on trunk muscle activation. Fifteen resistance-trained men performed ten repetitions of both exercises using a 14-kg kettlebell. Surface EMG from the erector spinae, rectus abdominis and external oblique muscles were collected on both sides of the trunk. The erector spinae activation during the one-armed swing was 14–25% higher on the contralateral compared to the ipsilateral side in both exercises (Cohen’s d effect size [ES]=0.41–0.71, p ˂ 0.001–0.034). Further, the contralateral side was 14% more activated during the two-armed swing compared to the ipsilateral side during the one-armed swing (ES=0.43, p=0.009). For the rectus abdominis muscle, the two-armed swing induced higher activation of the rectus abdominis compared to the one-armed swing on both the contralateral (40%, ES=0.48, p=0.040) and ipsilateral side (59%, ES=0.83, p=0.002). There were no differences for the external oblique muscle (p=0.495–0.662). In conclusion, the trunk activation patterns of the two exercises were different, which could be explained by different biomechanics in the two exercises, and could thus have complimentary effects. We recommend that both unilateral and bilateral execution of the American kettlebell swing is included over time.

Dura and Cranial Base Reconstruction by External Oblique Fascia and Rectus Abdominis Muscle Flap

1992 ◽  
Vol 8 (06) ◽  
pp. 427-432 ◽  
Author(s):  
Koichi Ueda ◽  
Takeo Inoue ◽  
Teruichi Harada ◽  
Sosuke Oba ◽  
Takao Harashina
Keyword(s):  
Muscle Flap ◽  
Cranial Base ◽  
Rectus Abdominis ◽  
Rectus Abdominis Muscle ◽  
Rectus Abdominis Muscle Flap ◽  
External Oblique

On the question of parainguinal hernias

1930 ◽  
Vol 26 (12) ◽  
pp. 1215-1219
Author(s):  
P. I. Korzon
Keyword(s):  
Inguinal Canal ◽  
Abdominal Cavity ◽  
Inguinal Region ◽  
Oblique Muscle ◽  
Internal Opening ◽  
External Opening ◽  
External Oblique Muscle ◽  
External Oblique

Paraguinal hernias include hernias of the inguinal region, which, like oblique hernias, exit the abdominal cavity through the internal opening of the inguinal canal, pass the latter, but exit not through the external opening, but away from it through the slit of the aponeurosis of the external oblique muscle. These gaps in the aponeurosis are located between the arcuate fibers, rounding the outer opening of the inguinal canal, then on the median or lateral leg of the inguinal opening.

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