Are Your Hamstrings Tight? By Paul Fischer
To test the flexilbility of your Hamstring at the knee takes minutes. Start by lying on your back with one leg extended straight on the ground, and the other with the knee bent at 90 degrees with the foot relaxed at the glute. Slowly extend the leg of the knee that is bent. The leg should extend completely, or reach about 10 degrees shy of extension. Normal Hamstring flexibility at the knee joint is 170-180 degrees. A simple way to stretch this if your test comes out positive is to use a luggage strap or towel around the foot following the same procedure. This can assist in various injury prevention. Contact me should you need any assistance or have any questions as my instruction on this may need clarification.