Example 1 – Cristiano Ronaldo Football strike:
Bones and Joints:
Kicking a football uses all of the bones and joints in your lower body. The tarsals, metatarsals and phalanges of your foot provide the contact surface that strikes the ball. The tibia and tarsals form your ankle joint, which must stay slightly flexed but rigid when you kick so that no power is lost. Your knee joint, consisting of the tibia and femur, extends as your thigh muscles contract and your hip, which is made up of your femur and ilium, swings forward in a movement called hip flexion.
Muscles of the Lower Leg:
The primary muscles in your lower leg used in kicking a football are on opposite sides of your tibia, or shin bone. Your gastrocnemius and soleus muscles, collectively called your calf, contract to extend your ankle in a movement called plantar flexion, while the muscles on the front of your tibia -- tibialis anterior -- contracts to hold your ankle rigid. This type of muscle action is called an isometric contraction, which means that while these muscles are generating tension, they are not causing any actual joint movement but merely hold your ankle in place. Knee Extension: Much of the power for kicking a football comes from the action of straightening your knee. …show more content…
This action, called knee extension, is the result of the contraction of the muscles on the front of your thigh. These muscles are called your quadriceps, which are made up of group of four individual muscles -- the vastus lateralis, rectus femoris, vastus medialis and vastus intermedius -- that share a common insertion point at the top of your tibia just below your patella, or kneecap Hip Flexion: Swinging your femur forward from your hip is a movement called hip flexion. …show more content…
Hip flexion is the largest joint action when kicking a football, because it starts from a position of extension and finishes with a significant follow-through. The main muscles responsible for hip flexion are psosas major, psosas minor and iliacus, which are collectively known as Iliopsoas, or hip flexors. These three muscles work with your quadriceps muscle rectus femoris and are responsible for the majority of the power required for kicking a football. To allow hip flexion to occur, your three hamstring muscles -- semitendinosus, semimembranosus and biceps femoris -- must relax. Tight hamstrings may hamper your kicking ability. Example 2 – Roger Federer groundstroke forehand: There are two phases to striking a ball with a racket, the preparatory phase and the striking phase. Most actions are rotational in the transverse plane and longitudinal axis and the three joints concerned are the wrist, elbow and the shoulder. The elbow is a hinge joint formed by the humerus and ulna. The shoulder is a ball and socket joint formed between the humerus and the scapula. The wrist forms a condyloid joint between the ulna and carpal bones. Groundstrokes require predominantly horizontal actions at the shoulder, using a combination of abduction and external rotation for the forehand backswing and backhand follow-through and a combination of abduction and internal rotation for the forehand forward swing and backhand backswing. The pectorals and the deltoid muscles work together to produce the swing to follow through and hit the ball. Supination (or underpronation) is the insufficient inward roll of the foot
Bones and Joints:
Kicking a football uses all of the bones and joints in your lower body. The tarsals, metatarsals and phalanges of your foot provide the contact surface that strikes the ball. The tibia and tarsals form your ankle joint, which must stay slightly flexed but rigid when you kick so that no power is lost. Your knee joint, consisting of the tibia and femur, extends as your thigh muscles contract and your hip, which is made up of your femur and ilium, swings forward in a movement called hip flexion.
Muscles of the Lower Leg:
The primary muscles in your lower leg used in kicking a football are on opposite sides of your tibia, or shin bone. Your gastrocnemius and soleus muscles, collectively called your calf, contract to extend your ankle in a movement called plantar flexion, while the muscles on the front of your tibia -- tibialis anterior -- contracts to hold your ankle rigid. This type of muscle action is called an isometric contraction, which means that while these muscles are generating tension, they are not causing any actual joint movement but merely hold your ankle in place. Knee Extension: Much of the power for kicking a football comes from the action of straightening your knee. …show more content…
This action, called knee extension, is the result of the contraction of the muscles on the front of your thigh. These muscles are called your quadriceps, which are made up of group of four individual muscles -- the vastus lateralis, rectus femoris, vastus medialis and vastus intermedius -- that share a common insertion point at the top of your tibia just below your patella, or kneecap Hip Flexion: Swinging your femur forward from your hip is a movement called hip flexion. …show more content…
Hip flexion is the largest joint action when kicking a football, because it starts from a position of extension and finishes with a significant follow-through. The main muscles responsible for hip flexion are psosas major, psosas minor and iliacus, which are collectively known as Iliopsoas, or hip flexors. These three muscles work with your quadriceps muscle rectus femoris and are responsible for the majority of the power required for kicking a football. To allow hip flexion to occur, your three hamstring muscles -- semitendinosus, semimembranosus and biceps femoris -- must relax. Tight hamstrings may hamper your kicking ability. Example 2 – Roger Federer groundstroke forehand: There are two phases to striking a ball with a racket, the preparatory phase and the striking phase. Most actions are rotational in the transverse plane and longitudinal axis and the three joints concerned are the wrist, elbow and the shoulder. The elbow is a hinge joint formed by the humerus and ulna. The shoulder is a ball and socket joint formed between the humerus and the scapula. The wrist forms a condyloid joint between the ulna and carpal bones. Groundstrokes require predominantly horizontal actions at the shoulder, using a combination of abduction and external rotation for the forehand backswing and backhand follow-through and a combination of abduction and internal rotation for the forehand forward swing and backhand backswing. The pectorals and the deltoid muscles work together to produce the swing to follow through and hit the ball. Supination (or underpronation) is the insufficient inward roll of the foot