The popularity of the M1 Garand continues to grow as hundreds of new Garand âFunâ Matches are being held all across the USA each year. Over the past 65 years, most M1 rifles have been arsenal rebuilt, refinished, rebarreled or repaired at least once and often several times.
These sits-ups, along with other similar exercises, work our oblique (that is, not straight) as well as our rectus (or straight) muscles located in the body wall of our trunk. These oblique and rectus muscles are axial muscles as they're located in the middle, or the axis, of the body. Most people will think of trunk muscles as being located anteriorly (that is, in the front) in the belly area of the abdomen.
Acting alone, the external oblique can flex the trunk, side bend the torso toward the same side (i.e., the side of the contracting muscle), and rotate the trunk toward the opposite side. The internal oblique originates from the thoracolumbar fascia, the inguinal ligament, and the anterior iliac crest.The internal oblique also functions to provide spine stability, and it flexes and rotates the trunk toward the same side (table 2.4).he external oblique is the most superficial muscle of the three flat abdominal muscles (the external oblique, internal oblique, and transversus abdominis).