Isotonically - The load your are lifting is equal to or less than the force generated by your muscle. Your muscle shortens when it contracts allowing you to lift the dumbbell.
1. The coolness:On each side of our nose, extending from a point above our incisor teeth to the bridge of our nose is a muscle called Compressor naris. Isometric contraction (hardening) of this muscle gives as a feeling of coolness.It should be noted that this muscle is exercised in Yogic exercise called Pranayama .2. The feeling of shivering:Extending downwards from our Adam's apple is a pair muscles called Sternothyroid. This is the muscle we use for singing. If a part of this muscle is contracted isometrically waves of isometric contraction pass to the extremities during breathing.3. The chilly sensation:If these two muscles contract together isometrically during breathing they give us a chilly sensation.If these two muscles contract isotonically (shorten) also it leads to shivering.
1. We can isometrically contract any skeletal muscle of our body. We can contract just one skeletal muscle of the body without contracting any other.However, we should be masters of Original Meditation to be able to put the small muscles of the head into pure isometric contraction. These are muscles of face, muscles within the oral cavity, muscles in front of the neck, those around eye ball and those in the middle ear.2. We can Isometrically contract and relax all the skeletal muscles of the body as a single unit.
Looking form the out side the two bones to which the Muscle is attached moves closer when the muscle is contracting concentrically while they do not when muscle is contracting eccentrically
muscle fibers contracting
relaxing
It represents contracting or shortening of a muscle.
Pulling and contracting is how a muscle moves the bones ....
contracting.
Relaxing
Detracting
Muscles contract either isometrically or isotonically, and the bones provide attachment points for the muscles, one is the anchor point, the origin, and the other is the movable point, the insertion. The joint is where the two bones articulate with cartilage to produce the joint that is the lever.
The muscle fibres are contracting