This will decrease stress on all your muscles, including your hamstrings.Warm up and stretch before vigorous activity.RESOURCES:American Academy of Family Physicians Family Doctorhttp://familydoctor.orgAmerican College of Sports Medicinehttp://acsm.orgCANADIAN RESOURCES:Public Health Agency of Canadahttp://www.phac-aspc.gc.caCanadian Physiotherapy Associationhttp://www.physiotherapy.caReferences: