Examine the different types of muscular contraction and the movements that they produce
Examine the different types of muscular contraction and the movements that they produce
The 'All or none law' is that all the forces within a motor unit will contract maximally or not at all.
Generally there are three ways or categories of muscle contraction. They are isotonic, isokinetic and isometric. There are two more that are called concentric and eccentric.
Isotonic contraction is the most common form of muscular contraction. It occurs when a muscle is acting as a prime mover and shortening under tension, creating movement around a joint.
The definition of isotonic contraction is the force applied to a movable object or it is a dynamic movement. An example of this is picking up an object. When you pick up a bag you applied a force to a movable object. When you are lifting weights you are also applying force to a movable object. It is possible that isotonic contraction can turn into isometric contraction. An example of this if you try to pick up a heavy bag. You move the bag slightly upwards (isotonic contraction), but then you stop and you can't stand up completely erect while holding the sack. At the point when the movement stopped, contraction became isometric.
The 'All or none law' is that all the forces within a motor unit will contract maximally or not at all.
Generally there are three ways or categories of muscle contraction. They are isotonic, isokinetic and isometric. There are two more that are called concentric and eccentric.
Isotonic contraction is the most common form of muscular contraction. It occurs when a muscle is acting as a prime mover and shortening under tension, creating movement around a joint.
The definition of isotonic contraction is the force applied to a movable object or it is a dynamic movement. An example of this is picking up an object. When you pick up a bag you applied a force to a movable object. When you are lifting weights you are also applying force to a movable object. It is possible that isotonic contraction can turn into isometric contraction. An example of this if you try to pick up a heavy bag. You move the bag slightly upwards (isotonic contraction), but then you stop and you can't stand up completely erect while holding the sack. At the point when the movement stopped, contraction became isometric.
