Concentric Contraction
The Concentric Contraction is referred to as the protagonist in a movement .This when the muscle shortens in order to the move the joint. An example would be the contraction of the hamstring which raises your foot up towards your bottom. This movement can be done while training for many sports doing heel flicks to test the flexibility of your hamstrings.
Eccentric contraction
The Eccentric contraction is referred to as the antagonist to concentric contractions. This is when the muscle is lengthening but in a controlled manner. The absence of eccentric contractions would mean the forearm would drop down after the bicep curl rather than being lowered. An example is in weight lifting .The bicep lengthens slowly to ensure a smooth movement. When doing bicep curl, the tricep is eccentrically contracting to control the movement.
Isometric Contractions
Isometric Contractions are also known as static contractions because even there is no movement meaning the muscle must maintain its position. This is used in Gymnastics when the athlete has to hold a certain position when they do their pose after they perform their routine. As many of you may have experienced, concentric and eccentrically strong muscles can struggle with this is because you must train all 3 types of movement in order to have a strong muscle.
Isokinetic Contraction
An isokinetic contraction is a specific type of concentric muscle contraction that occurs when the muscle contracts and shortens at the same speed throughout the entire range of motion. A concentric contraction happens when the force of the muscle overwhelms any external forces and the length of the muscle shortens. To produce Isokinetic Contraction special equipment is usually needed to gauge the speed of the contraction and steady it regardless of the force being created. This allows the muscle to maintain maximum force throughout the entire movement.
The Concentric Contraction is referred to as the protagonist in a movement .This when the muscle shortens in order to the move the joint. An example would be the contraction of the hamstring which raises your foot up towards your bottom. This movement can be done while training for many sports doing heel flicks to test the flexibility of your hamstrings.
Eccentric contraction
The Eccentric contraction is referred to as the antagonist to concentric contractions. This is when the muscle is lengthening but in a controlled manner. The absence of eccentric contractions would mean the forearm would drop down after the bicep curl rather than being lowered. An example is in weight lifting .The bicep lengthens slowly to ensure a smooth movement. When doing bicep curl, the tricep is eccentrically contracting to control the movement.
Isometric Contractions
Isometric Contractions are also known as static contractions because even there is no movement meaning the muscle must maintain its position. This is used in Gymnastics when the athlete has to hold a certain position when they do their pose after they perform their routine. As many of you may have experienced, concentric and eccentrically strong muscles can struggle with this is because you must train all 3 types of movement in order to have a strong muscle.
Isokinetic Contraction
An isokinetic contraction is a specific type of concentric muscle contraction that occurs when the muscle contracts and shortens at the same speed throughout the entire range of motion. A concentric contraction happens when the force of the muscle overwhelms any external forces and the length of the muscle shortens. To produce Isokinetic Contraction special equipment is usually needed to gauge the speed of the contraction and steady it regardless of the force being created. This allows the muscle to maintain maximum force throughout the entire movement.