Well, here's what we do around my home. My wife likes to run, hiking/trailrunning, etc. Typical female fitness type. I don't do the gym classes with her, but we do like to get out and run some really hard runs. (Don't take that as I'm any good at it
I practice martial arts (wing chun-krav maga esqu [JKD/Kali]) and want to start implementing parkour training into it all. I'm currently out of shape, my wife goes easy on me during the winter season when it's cold, and I haven't been back to the dojo in several months, but am attending full-time again.
My body rebounds quickly, been physically active for more than 20 years now (mostly), and I adapt to new routines that are similar to what I've done in the past (weights, bodyweight, general movement and jumping) fairly quickly. I would like to start parkour, continue my martial arts training, and be capable of still hanging with my wife on her runs/hiking.
I know SS works wonders with this, but what else can I do at the same time to still be active in these activities? Spending a year on one element of fitness seems subpar to me. That article I posted says to pick 6 or 7 skills, train them to the desired level, then move on to another 6 or 7. That seems more in line with what I know, which I'm trying to put aside and take advice here