Posted: 06/10/2012 at 15:13
iv had the same issues so got new shoes with a insole modeled to my foot (£47) for it at sweatshop. I have been calf stretches, we worked out my problem is caused by weak glute so lying on floor and lifting my bum up hold and release, also tennis ball under foot. all by my physio i was told. had sports massage 2 weeks before race then got massage on site to warm my calf up before race for £5 donation to their charity and had no issues doing the half last sun with my legs. Still did a rubbish time as got chest infection but hope this may help.