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Isometric Exercises or Isometrics

Isometrics are exercises in which there is no movement in the joint angle or muscle length as isometric movements are static as opposed to more traditional dynamic exercises performed over a wider range of motion.  Isometric exercises can be either force applied against an immovable object such as a wall or a static position with resistance.  While isometric training can enhance strength at the specific angle in which an exercise is performed, the benefit at greater ranges of motion is limited.  Isometrics are generally safer than other types of training, require little equipment, can be done more quickly and can be effective for muscle toning and strength.  Isometric training against an immovable object quickly activates a larger portion of muscle fibers than the first few reps of traditional multi-rep movements as close to maximum force can be applied almost instantaneously.