16-08-2009, 07:23 AM
Hi D .. the 4k on the tarmac should be fine however that could be a little tough on the legs
and as for effort ... this is a marker for you and it is used to measure a number of things, so we often recommend that it is an effort where you are not going into the zone where you are tapping into a massive mental effort but are running at level which is considered a time-trial
hopefully this explanation helps?
TheEd
and as for effort ... this is a marker for you and it is used to measure a number of things, so we often recommend that it is an effort where you are not going into the zone where you are tapping into a massive mental effort but are running at level which is considered a time-trial
hopefully this explanation helps?
TheEd