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The crunch is an abdominal exercise that works the rectus abdominis muscle. [1] It enables both building and defining "six-pack" abs and tightening the belly. Crunches use the exerciser's own body weight to tone muscle and are recommended by some experts [like whom?], despite negative research results [citation needed], as a low-cost exercise ...
Abdominal exercises are a type of strength exercise that affect the abdominal muscles (colloquially known as the stomach muscles or "abs"). Human abdominal consist of four muscles which are the rectus abdomens, internal oblique, external oblique, and transversus abdominis. [1] When performing abdominal exercises it is important to understand ...
Carnett's sign. In medicine, Carnett's sign is a finding on clinical examination in which (acute) abdominal pain remains unchanged or increases when the muscles of the abdominal wall are tensed. [1][2] For this part of the abdominal examination, the patient can be asked to lift the head and shoulders from the examination table to tense the ...
Sit-up form. The sit-up (or curl-up) is an abdominal endurance training exercise to strengthen, tighten and tone the abdominal muscles. It is similar to a crunch (crunches target the rectus abdominis and also work the external and internal obliques), but sit-ups have a fuller range of motion and condition additional muscles.
The transverse abdominal muscle (TVA), also known as the transverse abdominis, transversalis muscle and transversus abdominis muscle, is a muscle layer of the anterior and lateral (front and side) abdominal wall, deep to (layered below) the internal oblique muscle. It is thought by most fitness instructors to be a significant component of the core.
Diastasis recti. Diastasis recti. 72-year-old man, epigastric protrusion when raising the head. Diastasis recti, or rectus abdominis diastasis, is defined as a gap of about 2.7 cm or greater between the two sides of the rectus abdominis muscle. [1] The distance between the right and left rectus abdominis muscles is created by the stretching of ...
The linea alba is a white, fibrous band that is made of the bilateral rectus sheaths that join at the anterior midline of the body. These enclose the rectus abdominis muscles (a pair of long, linear muscles, commonly called the “sit-up” muscles) that originate at the pubic crest and pubic symphysis, and extend the length of the body’s trunk.
Dumbbell deadlift. The deadlift is performed by lifting a weight off of the floor until fully upright. This is a compound exercise that also involves the glutes, lower back, lats, trapezius (upper back), and, to a lesser extent, the quadriceps and the calves. Lifting belts are often used to help support the lower back.