Flexibility is one element of the physical body is important. The people who have The strength and weakness of the lower body. Often have problems with muscle injuries and back pain,
Exercise by stretching. Muscle weakness can develop it. And one has the elastic to use the equipment in gymnastics since the elastic reaction reflected back or pull back from being stretched called Great Low Tech's reflex (Stretch Reflex), which this flexibility. it is similar to the function of muscles, thereby reducing