The serape effect is a rotational trunk movement that increases the power output of the human body. It is trained in sports that involve rotation of the torso, such as boxing and discus throwing. The muscles involved in the serape effect are stretched and then snap-back with increased strength. It is named after a piece of clothing called the serape.
The term serape originates from a piece of clothing worn by people of Latin-American countries, specifically Mexico, also known by the same name. A serape is a brightly colored blanket which hangs around the shoulders and crosses diagonally across the anterior portion of the trunk. The general direction of how a serape is worn is similar to the direction of the pull of four muscles in the same area. The serape effect is this group of four muscles working together to produce an opposition of the rib cage and pelvis in the wind-up of a motion, and finally, generate a large summation of internal forces from the snap-back. The serape effect is prevalent in ballistic motions like throwing, kicking, and swinging.
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The rhomboids, serratus anterior, external obliques, and internal obliques are involved in the serape effect. [1]
The serape effect is important in throwing motions and motions that involve the rotation of the torso that have a high velocity (Northrip, Logan, McKinney, 1974). This includes ballistic motions such as with throwing a discus or javelin. The transverse rotation of the pelvic girdle prior to a ballistic throwing motion is important for creating a higher velocity in the direction of the motion. Without this pelvic girdle rotation prior to the ballistic movement then the pelvis will recoil and there will not be as a great of a velocity to the upper body during the ballistic motion because of a lack of stretching of the muscles and a lack of energy built up to contribute to the movement. The rotational movement of this larger body segment, the trunk, enables a summation of internal forces that is able to be transferred from this large area to a smaller area as such as the arm and the hand for throwing an object. [2] The serape effect can also be applied to kicking by transferring these forces from the trunk and pelvis to the lower legs. [2] For a throwing motion when the throwing limb is diagonally abducted and laterally rotated then the rib cage and pelvis should be at their farthest distance apart, which allows for a maximal amount of stretch in the muscles involved in the serape effect. This maximum point of stretching of the muscles lengthens the muscles so that when the throw takes place the muscles create a maximum amount of force as they shorten back to a resting length. “Muscles must be placed on their longest length in order to exert their greatest force”. [2]
The leg is the entire lower limb of the human body, including the foot, thigh or sometimes even the hip or buttock region. The major bones of the leg are the femur, tibia, and adjacent fibula. There are 60 bones in each leg.
The pubic symphysis is a secondary cartilaginous joint between the left and right superior rami of the pubis of the hip bones. It is in front of and below the urinary bladder. In males, the suspensory ligament of the penis attaches to the pubic symphysis. In females, the pubic symphysis is attached to the suspensory ligament of the clitoris. In most adults, it can be moved roughly 2 mm and with 1 degree rotation. This increases for women at the time of childbirth.
The pectoralis major is a thick, fan-shaped or triangular convergent muscle of the human chest. It makes up the bulk of the chest muscles and lies under the breast. Beneath the pectoralis major is the pectoralis minor muscle.
A gait is a manner of limb movements made during locomotion. Human gaits are the various ways in which humans can move, either naturally or as a result of specialized training. Human gait is defined as bipedal forward propulsion of the center of gravity of the human body, in which there are sinuous movements of different segments of the body with little energy spent. Various gaits are characterized by differences in limb movement patterns, overall velocity, forces, kinetic and potential energy cycles, and changes in contact with the ground.
The quadratus lumborum muscle, informally called the QL, is a paired muscle of the left and right posterior abdominal wall. It is the deepest abdominal muscle, and commonly referred to as a back muscle. Each muscle of the pair is an irregular quadrilateral in shape, hence the name.
The tensor fasciae latae is a muscle of the thigh. Together with the gluteus maximus, it acts on and is continuous with the iliotibial band, which attaches to the tibia. The muscle assists in keeping the balance of the pelvis while standing, walking, or running.
The abdomen is the front part of the torso between the thorax (chest) and pelvis in humans and in other vertebrates. The area occupied by the abdomen is called the abdominal cavity. In arthropods, it is the posterior tagma of the body; it follows the thorax or cephalothorax.
The gluteal muscles, often called glutes, are a group of three muscles which make up the gluteal region commonly known as the buttocks: the gluteus maximus, gluteus medius and gluteus minimus. The three muscles originate from the ilium and sacrum and insert on the femur. The functions of the muscles include extension, abduction, external rotation, and internal rotation of the hip joint.
Motion, the process of movement, is described using specific anatomical terms. Motion includes movement of organs, joints, limbs, and specific sections of the body. The terminology used describes this motion according to its direction relative to the anatomical position of the body parts involved. Anatomists and others use a unified set of terms to describe most of the movements, although other, more specialized terms are necessary for describing unique movements such as those of the hands, feet, and eyes.
A pelvic fracture is a break of the bony structure of the pelvis. This includes any break of the sacrum, hip bones, or tailbone. Symptoms include pain, particularly with movement. Complications may include internal bleeding, injury to the bladder, or vaginal trauma.
The core or trunk is the axial (central) part of an organism's body. In common parlance, the term is broadly considered to be synonymous with the torso, but academically it also includes the head and neck. Functional movements are highly dependent on this part of the body, and lack of core muscular development can result in a predisposition to injury. The major muscles of the core reside in the area of the belly and the mid- and lower back, and peripherally include the hips, the shoulders and the neck.
Pelvic girdle pain can be described as a pregnancy discomfort for some women and a severe disability for others. PGP can cause pain, instability and limitation of mobility and functioning in any of the three pelvic joints. PGP has a long history of recognition, mentioned by Hippocrates and later described in medical literature by Snelling.
The affection appears to consist of relaxation of the pelvic articulations, becoming apparent suddenly after parturition or gradually during pregnancy and permitting a degree of mobility of the pelvic bones which effectively hinders locomotion and gives rise to the most peculiar and alarming sensations.
A limb is a jointed, muscled appendage of a tetrapod vertebrate animal used for weight-bearing, terrestrial locomotion and physical interaction with other objects. The distalmost portion of a limb is known as its extremity. The limbs' bony endoskeleton, known as the appendicular skeleton, is homologous among all tetrapods, who use their limbs for walking, running and jumping, swimming, climbing, grasping, touching and striking.
The following outline is provided as an overview of and topical guide to human anatomy:
The leg raise is a strength training exercise which targets the iliopsoas. Because the abdominal muscles are used isometrically to stabilize the body during the motion, leg raises are also often used to strengthen the rectus abdominis muscle and the internal and external oblique muscles.
The overhandthrow is a single-handed throw of a projectile where the object is thrown above the shoulder.
The pelvis is the lower part of an anatomical trunk, between the abdomen and the thighs, together with its embedded skeleton.
Anatomical Terminology is a specialized system of terms used by anatomists, zoologists, and health professionals, such as doctors, surgeons, and pharmacists, to describe the structures and functions of the body.
Anatomical terminology is used to uniquely describe aspects of skeletal muscle, cardiac muscle, and smooth muscle such as their actions, structure, size, and location.
A kick is a skill in association football in which a player strikes the ball with their foot. Association football, more commonly referred to as football and also known as soccer, is a sport played world-wide, with up to 265 million people around the world participating on a yearly basis. Kicking is one of the most difficult skills to acquire in football. This skill is also vitally important, as kicking is the way in which passes are made and the primary means by which goals are scored.