Hip Flexion - Essay Example

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Hip Flexion

The linear velocity of the centre of mass of the rotating foot hitting the ball is directly proportional to the product of the angular velocity and the radius of rotation of the consecutive body segments and the linear velocity of the hip joint. The timing of these rotational movements is important for the impact of the foot with the ball. Putnam (1983) used the time between peak angular velocity of the thigh until the beginning of knee extension as a measure of timing during kicking with the preferred leg. Luhtanen (1988) used the interval between the shank reaching maximum angular velocity and impact as a measure of timing (Simonsen, E.B., 2002).
The acceleration of the kicking leg, in addition to the resulting velocity at impact, is concluded by the muscle forces being applied by the kicker. It has been accounted that the speed of the ball at impact was directly proportional to the calculated strength of his themes. The release velocity of the ball in regards to its timing had the strongest relationship to the maximal torque formed during the i. hip flexion, ii. Knee extension and iii. Short ankle alleviating in the kicking leg. ...Show more


Kicking movement in football is a relatively easy series of rotational movements. During the kicking movement, the leg functions as an open kinetic chain. The motion pattern of kicking is generally accepted as a proximal-to-distal sequence of segmental motions in which the proximal segment (the thigh) initiates the movement, causing the more distal segment (shank and foot) to lag behind, followed by a deceleration of the proximal segment and an acceleration of the more distal segment just before impact (Lees, 1996; Lees and Nolan, 1998)…
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