What Is the Serratus Anterior?

Musculus obliquus externus abdominis are broad flat muscles, which are located in the superficial part of the anterior lateral part of the abdomen. The starting part is jagged, starting from the outside of the lower 8 ribs. The posterior muscle bundle stops at the front of the iliac crest, the upper and middle muscle bundles migrate inward at the aponeurosis, pass through the front of the rectus abdominis muscle, and participate in the anterior layer of the rectus abdominis sheath, until the abdominal midline finally becomes white.

Chinese name: External oblique muscle
Foreign name: External oblique muscle
Nature: Broad flat muscle

lie in: Superficial ventrolateral
Beginning: Jagged
Injury site: Anterior point

Introduction to the external oblique muscle

Most of the external oblique muscles are injured at the anterior point of the iliac crest. When the human body flexes and spins the spine, it is injured by sudden or excessive convoluted movements. The pain at the starting point is mostly diagnosed as rib pain, and the injury is more likely at the stops. The general diagnosis is lumbar muscle strain. There are two types of clinical injury: acute and chronic injury. Small needle knife treatment is suitable for chronic injury.

Starting from the outside of the lower 8 ribs, the teeth of each muscle intersect with the teeth of the serratus anterior and latissimus dorsi muscles, and the lower back fibers stop at the palate, and the rest migrate to the aponeurosis, which combines with the contralateral tendon of the same name to form a white line. Zhang Yu between the xiphoid process and the pubic bone. The inferior edge of the aponeurosis thickens the inguinal ligament between the anterior superior iliac spine and the pubic tubercle.

The external oblique tendon forms a triangular fissure above the inner end of the inguinal ligament. The two sides are called the medial and lateral feet and stop at the pubic symphysis and pubic nodules, respectively. There are inter-foot fibers between the two feet, and a reverse ligament at the back surrounds the subcutaneous ring. Reverse the ligament for the next dissection.

External abdominal oblique injury

Local anatomy

The external oblique muscle starts from outside the lower eight ribs and ends at the front of the diaphragm. In addition, the aponeurosis stops at the white line and forms the inguinal ligament. The effect is forward flexion, lateral flexion and convoluted spine.

Pathogenesis of external oblique muscle

Patients with external oblique muscle injury are not uncommon in clinical practice. Most of them are diagnosed with rib pain and lumbar muscle strain without a clear diagnosis. The external oblique muscles stabilize the human torso for maneuvers. Therefore, the muscle strain and trauma are particularly opportunities. The injury of this muscle is that when the human trunk is in the forward flexion position, it is injured during the maneuvering movement. Its stress concentration point is at the starting point and stop point of the ribs. . But it can be relieved by the human body's self-braking rest and simple treatment, and gradually becomes chronic. Due to the damage at the starting and ending points, internal hemorrhage and scarring, and even muscle contracture, lead to unique clinical symptoms.

Clinical manifestations of the external oblique muscle

Injury at the starting point, vaginal pain, vulgar pain, stop-point injury, vaginal back pain, low mobility.

Unilateral external oblique muscle injury, patients are mostly lateral flexion and extension posture, bilateral injuries, the patient's ribs are mostly lowered, the waist is slightly forward recessed posture.

diagnosis

In the flexion position of the waist, there is a history of spinal injury.

Pain or tenderness at the starting point of the lower external costal oblique muscle of the lower eight ribs, or pain or tenderness at the anterior stop of the diaphragm.

In the lateral flexion position, the patient is instructed to perform spinal rotation motion, which causes increased pain.

rule

At the starting point: enter the needle knife on the rib surface near the tender point (generally, the tender point is on the rib surface), and the knife edge line and the external oblique muscle fibers run parallel, first stripping longitudinally, then stripping laterally, and then eject the needle.

At the stopping point: the patient is lying on the side, the affected side is up, and the healthy side is down. The lower leg flexes and the upper leg straightens. A needle knife is inserted at the pain point in the anterior part of the diaphragm. The knife edge line and the external oblique muscle fibers penetrate in parallel, the needle body is perpendicular to the human sagittal plane, and the depth is about 0.5cm. Then incline the needle body along the longitudinal axis of the human body so as to make an angle of 30 ° with the upper segment of the longitudinal axis of the human body, and peel two or three times longitudinally in the anterior part of the sacral condyle, and then two or three times transversely to peel the needle.

Extra abdominal obliques precautions

Do not insert the needle at the starting point in the rib space to avoid breaking the pleura. The needle knife is always moving on the rib surface.

When inserting the needle at the dead point, you must grasp the depth of the needle. When the blade touches the anterior bone surface of the iliac crest, you need to feel the needle to find the reaction point (patient complains of soreness), and then perform the stripping operation.

External oblique exercises

Many basic movements for large muscle groups often have incidental effects on smaller muscles. For example, supine dumbbell pull-ups are evidence for the serrated muscles and curls for the forearms. Many professional athletes add little or no abdominal movements to their daily training. In addition to their genetic differences, other heavy exercises are the most important factors. When using heavy weight movements such as deadlifts (deadlifts), the body is forced to support these weights with abdominal muscles when rowing, thereby achieving incidental effects. Note: This is a completely different concept from some people borrowing the back when doing curls-the abdominal muscles are not hard but support.

Essentials of external abdominal obliques

The body lies on the mat, the upper leg is bent, the angle between the thigh and the calf is about 60 degrees, the foot is on the ground, the knee is perpendicular to the ground, the lower leg is flat on the ground, the knee is also bent, and the thigh and calf are clamped The angle is also about 60 degrees. Put your foot on the foot of the other foot, fix the leg that is stepping on the ground in one position, tilt the upper body, step off the shoulder on the same side as the foot, and press the other side against the ground. Place your arm on the shoulder on the other side, and straighten the lower arm to the mat. Take a deep breath first, then tighten the external oblique muscle on the far side of the ground, and exhale at the same time. At the same time, the external oblique muscles slowly relax, the body returns to its original position, and then repeat the exercise.

Time and frequency: Each time you practice this action, you usually do it 10 times at a time, and the external oblique muscles feel very much. Practice 4 groups at a time. When both sides are practiced as a group, there is no break in the middle. After practicing on both sides, start the next set of exercises with a 1-2 minute interval. After one month of practice, you can increase to 20 times on each side, and do the same in 4 groups. When you practice 30 sets of exercises on each side for a total of 6 groups, the shape of the external oblique muscles will be very fit. This level will be reached after three months of continuous practice. To give the muscles time to recover, practice the next day. 3. Note: The most important point when practicing external oblique muscles is the balance of the two sides, such as the left side first, and the next group should do the right side first. Because the first exercise will be more energetic and slightly relaxed. Therefore, in order to balance the muscle growth of the external oblique muscles on both sides, the movement of the external oblique muscles on the left and right sides must be adjusted for each exercise. The second thing to note is that the movement must be standard, otherwise the rectus abdominis will use force to affect the exercise effect of the external oblique muscle.

External oblique muscle weight

You don't need to use heavy weight at first. After finding the sense angle, you can usually pull up half of the weight of the bench press you use. For example, a bench press of 10KG can be used for a group of 10 times, and a single-arm rowing can be used for about 4KG, 10 times.

Others: It is worth noting that rowing often feels that there is strength in the back, but the dumbbells cannot be grasped by the hands. At this time, a pair of gloves would be a good idea. Otherwise, you can use walst straps-in fact, it is two 3-4CM wide and 40CM long canvas strips, which can be wrapped around one hand and wrapped around dumbbells at the other to prevent slipping.