I just aim for the duration. The key for me is to remind myself 20 minutes is not a long time, and getting through it is more important then hitting targets. I

I just aim for the duration. The key for me is to remind myself 20 minutes is not a long time, and getting through it is more important then hitting targets. I've probably naturally gotten faster at it, but the basic idea is to keep any steady pace and just make sure I do it. Most of the basic research on this tends to suggest the same thing: you need 15-30 minutes a day of mildly aerobic exercise, and you get a big boost in calorie demand per day and feel better. That's what I'm aiming for: and for me rowing has the additional benefit that it's very compatible if you suffer from IBS/other gut pain things (which I do) which always knocks out running for me.