Flexibility is an important component of physical fitness that, even today, is given little consideration by gym instructors, personal trainers and athletic trainers in general and, by extension, by those who advocate a healthy sporting activity to stay in shape. You will have had the opportunity to meet people who have had musculoskeletal trauma and problems with the lumbar spine. In 80% of cases the cause is a lack of flexibility. The stretching methods described in this text are important, especially for individuals who sit for a long time and for those who play sports. Stretching, which allows you to improve muscle flexibility and the range of action of the joints, therefore becomes essential for carrying out sports activities as well as for everyday activities, from bending down to pick up the newspaper or getting out of the back seat of a car with only two doors, to running a triathlon.
