Brand new to this forum, found a link from the NHS site. Chuffed to bits that I managed to finish the big 20 minute run successfully last night (managed to find a 30 minute window without torrential rain!). Approached it with huge trepidation, but it was all unfounded. Kept going at a steady pace throughout, and managed to break through the 'psychological' pain barrier after about 10 minutes. Especially chuffed as it's quite hilly where I live. I couldn't believe that this would have been possible 5 weeks ago. Thanks NHS!