So i have my PRMC in approx. 10 weeks, for which i've been waiting and training for months. Recently, however i've developed a calf strain and i obviously need to rest it to be on form for PRMC! Any idea of how to keep on top of my cardio whilst still ensuring my injury mends? I've heard my calf is going to need 4-6 weeks to heal properly. Anyone do a lot of swimming that could maybe explain the basics of using swimming to increase my fitness? Should i do sets of few fast lengths, lots of lengths, lots of fast lengths? I can swim alright but i've never really used it to get fit, more a cool down after the gym. Cheers in advance.