Like many of you my focus shifts during the course of a year. While being steadfastly against surrendering things to the aging process I also realize that pulling a 505 deadlift is not something I care to chase at 62. I use Dan John's 1-2-3-4 assessments, particularly:
1) Standing on one foot with eyes closed for 30 seconds. My college basketball days played hell on my right ankle, so this is not a given for me like it might be for you.
2) Standing long jump. Upon first testing it I jumped 6'7" at a height of 6'6". That passes, but barely. My last test was 8'10" so i am getting better at the technique or some positive physical improvement has been realized. More than likely both.
3) Holding a plank for 2 minutes. Being able to do it without shaking like a dog passing razor blades is my new normal.
4) Waist measurement less that half of height (in inches). At 62 I'm not likely to grow taller, so improvements in this area reflect good things in my training and dietary approach, or at least I think so.
5) Loaded carries. These are more difficult for me to assess since I've never really tried to max them out. I know that getting to 1/2 bodyweight in each hand was a process, so being there indicates something I suppose. Varying up the load and distance is more natural to me so I don't test my limits very often.
There are others included, just not as regularly. Swinging the 32 with form and control as opposed to it being for loaded carries. OS resets give both immediate and gradual feedback.
I still work strength and power, but am mindful that while I always have another injury left in me I don't need to find out whether I have another recovery left in me. That being said, i was able to establish new PR's in the BB military press and KB military in the last year so I got that going for me.