10-11-2013, 03:45 PM
Hi Ed,
just wanted to ask about the 5x8 mins at 75% does the 75% relate to heart rate or effort enjoying the build up at this time my body feels relaxed and good so all is well thanks and regards jon.
just wanted to ask about the 5x8 mins at 75% does the 75% relate to heart rate or effort enjoying the build up at this time my body feels relaxed and good so all is well thanks and regards jon.