If you are a budding sports star read this.  As kids grow, particularly in the growth spurt when the bones get longer the soft tissues and muscles don’t grow as quickly and become tight. One week you can be flexible and the next you have tightened up. Tight muscles are injured more easily and slow you down for example chopping your stride length.

This simple test used by professionals can help you monitor your flexibility. Sit with your legs straight and reach forward to your toes, reach as far as you can and ask someone to measure the distance from your finger tips to your toes after you have held the position for 5 secs. Repeat every week and write on your calendar – simple !