Physical therapists are doctorate level trained health care providers who are experts in exercise, function movement, and performance. In practice, physical therapists use a three main muscle ...

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.

IF YOU’RE OVER 40, the first time you heard the word “isometrics” was probably in the context of an exercise program your Dad used to get the 1970s version of jacked. Contract and hold a muscle, the ...