It's a damned back-breaker and neck-wrecker.
Cardio-pulmonary endurance is what needs to be measured and a damned situp doesn't do that.
I don't have a solution...although I always leaned toward endurance marches and hikes, a combination of walking and running.
I also always felt the old Run/Dodge/Jump in a timed mode and adjusted for different body types, would be part of a good test of physical readiness.
Bottom line, there are differences between men and men and there are differences between women and women...and there are damned sure differences between men and women.
Let's make it all about getting to the battlefield with a full battle-rattle and then being able to fight effectively once you get there.
I know damned well they can come up with something besides situps and pushups.
And for the mouthy wags out there, I maxed every APFT I took while on active duty, except for my last one prior to retirement...which is when a damned situp snapped two vertebrae in my back.
But I still passed the damned test.
Congratulations. However, the situps, pushups and two-mile run were standards that everyone could compete against. Now they are going to vary it by sex and MOS? What a crock of BS.