Originally posted by redstorm
I have read at a few places that for intervals to be beneficial you should at least spend 10-20 minutes at 80-90% MaxHR total across all intervals? In order to respect the 10-20 min duration how would you schedule the intervals?
Depends on what your doing and why you are doing the interval. Not sure where these guidlines are from as some intervals might be 20 mins in length on their own! Also in short intervals (say 30 seconds) your HR might not reach this level until the end or even after the interval and then only for a few seconds.
Originally posted by redstorm
Right now I have started doing the following:
- 15 minute warmup @ 60-70% MaxHR
- 5x1 minute intervals @ 80-90% MaxHR
- 15 minute cooldown period @ 60% MaxHR
In between intervals I let my HR go down to 60-65% before starting another interval.
What do you want to acheive/why are you doing them specificaly? Do you let your HR get up their before you start timing? This sounds like a viable session, although you could introduce another set if you find it too easy.
Originally posted by redstorm
With the 5 x 1 minute I am under the 10-20 min recommendation I have read about so I was thinking about increasing to 10 x 1 minute. This made me wonder if 10 x 1 minute is best or should I be doing 5 x 2 minutes instead?
That would depend on what you want to acheive.
Originally posted by redstorm
Are there any ressources for information on the net about duration & interval count combinaisons and their benefits ?
Not sure, but you can usualy find examples in books and things. Perhaps we can start another thread 'favourite interval sessions and why you do them/what they are for'.
Roughly and realising that there are an infinate number of ways sessions can be planed. The physiological/training responses to each effort are also not quite as simple as below. Anyone please feel free to add or amend my list.
10 second efforts (I call these sprints) develop ability to sprint (neural and ATP-PC energy system). 2.5 mins needed for complete recovery after an effort of this type.
30 to 90 second efforts develop anaerobic capacity and build up lots of lactate. Complete recovery can take more than 15 minutes after an effort. Lots of burning in the legs.
3 to 6 minutes develop aerobic capacity or VO2 max.
8 to 30 minutes develop LT (and related things).
Long rests increase the amount of work that can be done during the period while short rests reduce fatigue over repeated efforts. So rests should be based on the effort and what you want to acheive.
I normaly get people to ride at 100% for the whole distance; that means sprint for 10 to 90 seconds as hard as you can and kick every time you slow down, pursuit effort for 3 to 6, TT effort for 8 to 30 mins. HR or power are obviously effective means for guiding the effort too.
You might want to check out ...
http://www.cyclingforums.com/t41023.html