iOS has filters and drawing apps up the wazoo, so it can be hard to see the point of new ones. But Isometric allows you to create and manipulate designs and optical illusions that are weirdly ...

Isometric, isotonic, and isokinetic exercises refer to the different techniques for activating and strengthening muscles. Isometric exercises, like planks, involve activating muscles with no movement.

Isometric exercises like wall sits, planks, and glute bridges hold the body in one position for a set period of time. Muscles are contracted and engaged, but they don’t lengthen during the exercise.