I do muaythai and want to do something in between my (infrequent) training session to help my conditioning. I have a conceptual question about what works:
- On one hand, I often hear that at least 30 min. of constant work is the minimum to actually improve condition
- On the other hand, Ross Enamait writes that 20 min. of elevated heart rate is enough to achieve an effect, and advises to put a lot of intensity into those 20 min.
So the question is which statement is closer to the truth? What mimimum time should I invest if I want conditioning benefits? How much active rest is allowed?