What is the recovery like, especially when someone begins a program like this? For a high-intensity session, it seems like it could leave you feeling sore and tired for more than a couple days afterward, which would hinder other things like martial training. How prevalent is that, and if sessions are once a week or once every two weeks, are you able to condition beyond that, so soreness dissipates more quickly?
How long does a session typically take?
My experience has been that most people don't get particularly sore from this kind of workout. A little sore maybe, but nothing like I used to sometimes get when I was doing conventional weight lifting. I can't promise that you won't end up with a significant case of DOMS, especially since you won't be working with me directly nor will you be using the same kind of equipment, but I doubt soreness will be a big obstacle to MA training. I could speculate about why that is but I don't have a perfect answer, I'm just glad that it seems to be true for most people.
Fatigue can be an issue for some people, though this tends to be a bigger problem for more advanced practitioners who've learned how to really achieve a deep inroad. It also doesn't seem to impact everyone to the same degree. I find that I need more sleep the night after one of my workouts and that if I don't go to bed early I don't want to get out of bed in the morning. As long as I don't both go to bed late and then get up early this largely passes after I've been up for a while and eaten breakfast, but I might still feel just a little fatigued and be ready for bed a bit earlier than usual. Again, as long as I got reasonable sleep this isn't anything that would keep me from wanting to do MA training and even if I didn't get reasonable sleep it probably wouldn't be enough that I couldn't have a good MA training session - it might just not sound like fun.
Muscular weakness post workout can also be an issue, again, especially for more advanced practitioners. It doesn't seem to impact everyone, and I could speculate about this too. It does impact me and I wouldn't want to do one of the conditioning focused sessions from my old Hapkido school (with its old school training) without a couple of days of recovery first. It isn't terrible though, and I could get through most any MA training session from any of the less hard core schools I've been to without it being more than a little extra uncomfortable, but I think it would still be sub-optimal, both in terms of recovering from the strength training workout and getting the most out of the MA training. I
can get a lot of benefit out of a skill development focused MA training session the day after a workout. The movement is good for blood flow and I find it helps recovery, and the muscular weakness isn't so intense as to prevent me from doing technical work. That might not be true with something like BJJ, but I could definitely do FMA, Tai Chi, Muay Thai, and boxing classes with a focus on skills without an issue.
You can also modify your workout to largely avoid both the fatigue and, to a lesser extent, the muscular weakness, by reducing the number of exercises that you do in you strength training session. A pretty standard workout for me is something like chest press, seated row, hip extension, and leg press. I used to include 2 more big movements, but between being older and being able to acheive a much deeper level of inroad, I just can't do that and recover in a reasonable amount of time anymore. If I have something physical scheduled and I still wanto get some kind of strength training in, I've found that I can reduce volume, still get a great workout, and have much less fatigue and recover from the muscular weakness faster. I can also focus on the body parts that aren't going to be taxed by the other activity.
So, for example, if I was going to be hiking in steep terrain I might skip the hip extension and leg press so that my lower body was fresh. Or if I just didn't want to be fatigued, I might just do leg press and hip extension. I have fewer options now that I'm already down to only 4 exercises. When I was still able to do 6 I had a lot more choice about what I could drop and still get a full body workout in, still while reducing overall volume.
So, session length... This is the thing that gets me called a liar. New-ish clients would usually take about 20-30 minutes to get through 6-7 exercises once they'd achieved basic profiency and we had their weights dialed in. But time varies a lot depending on the practitioner's skill and ability to maintain good form with a heavy weight and the sessions get
much shorter for advanced practitioners. I'm only doing 4 exercises for my primary routine, and I can maintain good form with very heavy weights, which means that I achieve momentary muscular failure in a very short time. The system I use only does one set to absolute failure per exercise, with no rest between exercises, so this means I'm done very quickly. Not counting the brief period of time it takes me to set up the machines, my workouts average right around 6 minutes and I'm wrecked afterwards for maybe 20 minutes. After about 5 minutes I can function and do things like cook dinner, but I'm mentally and physically pretty shot. Almost all of my advanced clients were under 15 minutes, many under 10, some in the same 6-7 minute range.