LoTs in my expierience doesn’t have much impact on performance and recovery. Maybe slight improvement in strength and gym motivation, but this in my opinion is caused more by a stronger desire to improve looks and aesethics, then direct performance enhancement.
Haven’t really ran Spartan since the Q days, but in the past recovery was a non-issue with it, and I believe theres specific scripting for recovery, as well as shifting for joints/ligaments, which most the time is why injuries occur on the first place.
Earth I haven’t ran enough to comment on, and Paragon ive ran more due to illness then physical injury, I think @Azriel could speak more to that.
As far as my personal philosophy, I am not a big passive rest/recovery person. I think most injuries aside from those caused by high impact like fractures, are more due to imbalances, weak joints/tendants, or mobility issues, thus when I see people making remarkable recoveries, coming back from ACL tears, back issues etc, there is normally a brief period of rest, but then there is longer stretches of things like physical therapy, building joint and tendon strength, etc.
So my reccomendation depending on the injury of course, would go to Spartan, or Beast Unleashed, rather then a passive rest/healing title. Much easier to actually take action on as well.