Flexibility Training
Flexibility and Stretching
Dynamic flexibility - the ability to perform dynamic movements within the full range of motion in the joint. Common examples include twisting from side to side or kicking an imaginary ball. Dynamic flexibility is generally more sport-specific than other forms of mobility.
Static Active flexibility - this refers to the ability to stretch an antagonist muscle using only the tension in the agonist muscle. An example is holding one leg out in front of you as high as possible. The hamstring (antagonist) is being stretched while the quadriceps and hip flexors (agonists) are holding the leg up.
Static Passive flexibility -- the ability to hold a stretch using body weight or some other external force. Using the example above, holding your leg out in font of you and resting it on a chair. The quadriceps are not required to hold the extended position.