There are a couple different types of stretching…
1: Static Stretching: The most common type of stretching. When holding your stretch in place, you want to hold it for 30 seconds… & No less!
2: Dynamic Stretching: This is good for specific sports and pre-work-out, however it is never meant to be quick jerking motions. Stretches are about one second in a stretch and one second relaxed and repeated- without a break.
3: Assisted Isometric Stretching: This is done with the assistance of someone else (a professional) and considered the most effective for obtaining flexibility. The muscles are stretched & held isometrically for at least 30 seconds, and usually the patient is motionless while stretching AS WELL as a tensing of the stretched muscles against resistance.
Now for some good Examples…