In college, I had the honor of participating in a wrestling training seminar led by a coach of an elite wrestling program in the States. During the lesson, he (the coach) mentioned that he didn't allow his team to sit during training except in a "seiza" (Japanese word) way (meaning sitting with the lower half of the leg beneath the thigh).
Now I've become a coach myself (in striking/mma), and I'm wondering whether or not I should tell my squad to avoid sitting except in the seiza way (unless they're injured). I naturally understand the desire for the squad members to want to sit between rounds on their butt.
I don't want to impose something that brings no or little benefit to my squad. So my question:
Generally put, is there any scientific justification/benefit (explicit or likely) to instructing the athlete to not sit/sit on their butt during intensive combat sports training (as opposed to just weight lifting)?
If yes, what? (if possible, w/ links to articles, etc)
For example, let's take a session of 10 rounds of intense kickboxing sparring where 1 round is 3-5 min. If a fighter does 3 rd, and rests out 1 rd (the 4th rd), to then join back on the 5th round:
Is there any strong enough/plausible scientific reason/merit to have him/her not sit/sit on his butt during that 4th round, and instead remaining standing, or sit in a seiza way? (You can vary the example if the answer depends on the duration of rest, intensity/type of exercise, etc.)
(This seems partly related to topics covered in discussion/explanation on cool downs.)