5k Training Intervals: Push The VO2 Envelope (LTHR)

Usain Bolt winning the 100 m final 2008 Olympics

That’s me at the back

You still can’t beat the 5x1k 2RI (Rest Interval) session as the all round most effective 5k training session for us mere mortals – I think.

Here’s a good one tho. Not quite the same goal in mind necessarily. Let’s say your PB is 20 minutes ie 4:00 minutes per km. A nice round number. Today’s session is

5x100m strides (approximately race pace) then

a 100m sprint almost flat out 2 mins rest and sprint again and rest again.

Onto the meat of 4 sets of the following 3 component intervals:

  • 5 minutes at  4:30 (PB + 30 secs) – NO REST YET
  • 3 mins at 4:05 (PB+5 secs) – NO REST YET
  • 2 or 3 mins RI (rest).

You’ll have to work back the pace figures for yourself based on your own PB. You are really trying to make those 3 minutes at near race pB pace work well for you. This is not to improve your speed per se it is to help you maintain speed. In the past I have spent too much time doing longer sessions too slowly. This sort of session is much more useful for similar benefits.

Of course you can always do more sets if you want! But you might find that doing the above more than twice is difficult. Add your warm up and warm down, add any technique work on the slower bits and substitute the sprints for some plyometrics if you want, especially if your speed is not a problem.

And I think the title is a bit misleading as this session is probably more of a push the LTHR envelope (OBLA+turnpoint)…probably a more useful goal as V02 max is determined a lot by genetics and not as easily changed as some websites will have you believe…

8 thoughts on “5k Training Intervals: Push The VO2 Envelope (LTHR)

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