Tuesday, October 5, 2010

Entry Phase


The entry phase has three main positions.  The first position is standing perpendicular to the floor, feet together and arms at full flexion.  As the gymnast moves to the second position their shoulders will first go through extension then hyperextension. At this time their knees will bend and their hips will be pushed back into flexion. When the gymnasts’ prepares to take off they will jump backward and upward so that their hips are in hyperextension.  This will transfer the gymnast into the second phase called the flight phase.

 
Position 1-
Shoulder Girdle:
Frontal Elevation using the middle and upper trapezius, rhomboids and levator scapulae
Shoulder Joint:
Flexion by concentricly contracting shoulder flexors using the anterior deltoid, upper pectoralis major.
Hip Joint:
Medial extension of the hip using the adductor magnus, gracilis. Psoterior extension of the hip using the semitendinosus, semimembranosus, biceps femoris, gluteus maximus.

Position 2-
Shoulder Girdle:
Downward Frontal Rotation using pectoralis minor and rhomboids
Shoulder Joint:
Extension by concentricly contracting shoulder extensors
Hip joint:
Flexsion of the hip using the iliacus, psoas major and
minor, rectus femoris, sartorius, pectineus, gluteus
minimus, tensor fasciae latae
Hip girdle:
Anterior pelvic rotation: anterior movement of the upper pelvis; the iliac crest tilts forward in a sagittal plane; anterior tilt; accomplished by hip flexion and/or lumbar extension.

Position 3-
Repeat Position 1




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