When dealing with Hamstrings in a sports massage or Osteopathy, therapist must be certain its a hamstring issue it could be referred pain from the gluer and the piriformis to an Si Joint problem. Then we have to see if the patient is performing a task job or exercise in which this injury/pain is being activated.
Training for a marathon?
long training regimes can affect lower back hip flexor hamstrings.
Osteopathy can keep an Athlete moving through a tough training regime, if joints and back feel compromised.