Plank (exercise)
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The plank is an isometric core strength exercise that involves maintaining a position similar to a push-up.
Recruit performing a plank at a US Coast Guard training
Extended plank
Side plank step by step
Modified side plank
Isometric exercise
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An isometric exercise is an exercise involving the static contraction of a muscle without any visible movement in the angle of the joint. The term "isometric" combines the Greek words isos and -metria
Plank (exercise)
…The plank (also called a front hold, hover, or abdominal bridge) is an isometric core strength exercise that involves maintaining a position similar to a push-up. The most common plank is the forearm plank which is held in a…
As this weight lifter completes his lift he will combine dynamic leg movement with an isometric holding of the barbell.
The jumper on the left performs a distinctive isometric press, primarily by applying downward pressure onto his bent rear leg. This acts as a means of preloading the muscles prior to engaging in a jump from standing. The jumper to the right of him is mid-flight.