Hamstring stretching exercises can be done for a number of reasons including rehabilitation from hamstring injury, lengthening tight hamstrings which may be a potential injury risk in the future or as part of a warm up to help reduce the risk of hamstring injury during a training session. View hamstring rehab stretching exercises for hamstring strain recovery.
Below we describe a number of different types of hamstring stretches. Static hamstring stretches are where the stretch is held at the limit of flexibility for a period of time. These are popular in warm up activities and cool down stretching but also have a place in rehab.
Dynamic hamstring stretches involve a swinging movement and are excellent for warm up stretching and developmental stretching to increase the length of the hamstrings. PNF (proprioceptive neuromuscular facilitation) involves contracting and relaxing the muscle as part of the stretch. The best hamstring stretches for you will likely depend on your aims and expected outcomes.