Flexion Movement

1 . Describe the Major bones, muscles,joints and joint actions used to perform this movement skill and how they influence the way the body moves.

tips of my fingers and my thumbs form a W shape), bending my knees as

to contract, which then allows body movements and functions? There are two types of muscles in

The muscles’ stretched starting position means that the individual sarcomeres of her muscles have less overlap

In this phase the athlete is standing in a neutral position holding the ball. The metatarsophalangeal and interphalangeal (great and lesser toes) are held at slight flexion pressed against the ground by an isometric contraction of the flexor halluces longus, flexor digitorum longus, flexor digitorum longus. The ankle is plantar flexed using an isometric contraction of the gastrocnemius and the soleus. The tibiofermoral (knee) joints are slightly flexed by a isomectric contraction of the quadriceps muscles (rectus femoris, vastus lateralis, vastus medialis, vastus intermedius). The acetabularfemoral (hip) joint is held at a postion of slight flexion through an isometric contraction of the biceps femoris, pectineus, iliacus, and the psoas. The intervertebral (lumbar) joint is extended by an isometric contraction using the erector spinae. The atlantooccipital (cervical spine) joint is flexed by an isometric contraction erector spinae. Both scapulothroracic (shoulder girdle) joint is protracted by an isometric contraction of the serratus anterior and pectoralis minor. The glenohumeral (shoulder) joint is at internal rotation by an isometric contraction using the pectoralis major, latissimus dorsi, teres major, and the subscapularius. The humeroulnar (elbow) joint is at 90 degrees of flexion by an isometric contraction using the biceps brachii, brachioradialis, and brachialis. The radiocarpal (wrist left and right)

during these movements, the angles of those joints, as well as the muscles involved during the

Extensor digiti minimi - It's major common attachment is the lateral epicondyle. When it contracts it

Together, the two sides extend neck; alone, each rotates and laterally flexes neck to that side

Hinge The convex surface of one bone fits into the concave surface of another bone, Hinge joint are uniaxial because they allow motion around a single axis. Produces an opening and closing motion.

Once inside the elbow the unlar nerveis recognized, lifted out, and moved to provide greater access to the joint. This is the "funny bone" nerve and it runs inside the ulnar groove.

The shoulder is a ball and socket joint which allows it a flexion and extension motion.

For shoulder flexion 61% of the variance could be accounted for by the sit-and-reach. A correlation was also found between the modified sit-and-reach test and both the shoulder extension and hip flexion tests. For shoulder extension 33% of the variance was accounted for by the modified sit-and-reach and for hip flexion 22% of the variance was accounted for by the modified sit-and-reach.

In macroscopic detail, the shoulder looks like the scapula coming up and creating a good base for the tendons. Above, is

The knee travels with a slight flexion at 5° to nearly 20° of flexion by the end of loading response. The knee then extends through a single support, with a peak stance of phase extension at a 40% Gait Cycle. In conclusion of the terminal stance and preswing, knee flexion is rapid, continuing through initial swing until peak knee flexion at 60°. Preswing is defined as one of the five stages in the stance phase of walking or gait. This trend then is reversed, with knee extension continuing through terminal swing.

Extension - the opposite of flexion where the joints are straightened and the angle of the joints are increased.