I am a regular runner but have strained my calf twice recently. This is an old injury that has started to re-occur. I wear stability trainers, stretch regularly and wear compression socks to run. Would you be able to offer any other advice as to prevention please?

Hi Andrew Absolutely. You’re doing some great stuff but you're missing the fundamental key to getting stronger, and giving you that protection. It’s pretty simple. You should be able to do 30-40 single leg heel raises, with your knee straight and your knee bent. Have a look here:   https://www.youtube.com/watch?v=_CmbMbI519o   The Guru