New research published in the British Journal of Sports Medicine says 'isometric' exercises are better than other forms of ...

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.

Because they are low-impact, isometric exercises help injury recovery and relieve joint pain. Isometrics don't require equipment so you can do them just about anywhere, even on a plane.