My accident was while doing yard work trying to lift a 250lb bucket of branches and fallen limbs in March of 2010. Not expecting this prior to my USTA Tennis season I was desperate to be able to get back on the court quickly. I used the hamstring patch for two weeks along with PT for three weeks and was back playing in 4 weeks. I literally could not weight bear for the first 3 days without excruciating pain. My doctor as well as physical therapist could not believe how quickly my bleeding hamstring cleared up within a week. Thank you for a wonderful product.