This evening I set out to do a well paced 1000m set. Initially I set a SPM at 61 and after 200m moved up to 62SPM. This was hard work and my pace showed a decline from under 2:20min/100m to approaching 2:30min/100m. I'm sad to say that at 900m I stopped for a break as my chest felt as though it was going to explode! After 20seconds or so I put the final effort in and finished the set.
Excitingly even WITH the pause the time is a PB of 24:13minutes, ahead by 9 seconds. If I could have completed the set in one go it would have been a stunning 30 seconds taken off. No wonder I was finding it hard work. I'm fairly happy with 9:24minutes for the first 400m with RHS only breathing. This isn't a PB but I know that I lost a few seconds in the lane and it wasn't a 400m CSS set but the start of a longer set.