Muscle actions that occur when tension is developed in the muscle without movement at the joint or a change in the muscle length. The tension remains constant because the length of the muscle does not change.
Movement against an immovable force; static; a muscle contraction in which the tension increases, but muscle length remains the same.
Same measure; exercise in which muscles contract but do not shorten, isometric exercise.
Involving equal measurement.
Referring to muscle contraction in which tension occurs with very little shortening of muscle fibres.
Referring to exercises in which the muscles are put under tension but not contracted.
Exercises to strengthen the muscles, in which the muscles contract but do not shorten.
In exercise, the term isometric is used to refer to resistance-training exercises in which the muscle is static (neither shortens nor lengthens) throughout the contraction. A common example of this type of exercise is the wall sit, in which a person stands against a wall with the knees and hips at opposite 45° angles.
Of similar measurement. Isometric exercises are based on the isometric contraction of the muscles. Fibres are provoked into working by pushing or pulling an immovable object, but this technique prevents them from shortening in length. Such exercises improve a person’s fitness and build up his or her muscle strength.
A method of exercise where muscles gain strength by resisting against a force without actual movement. This resistance can come from a stationary object or from opposing muscle groups.