Lifting does tend to adapt the muscles to be shorter, so that might be the difference, I'm guessing. That could be corrected by doing enough stretching or some sports that require an active and flexible body. Doing jumping, climbing and all that is great. I say, do it all. I like to lift barbells, dumbells, kettlebells, rocks, sandbags, do chins, ring work, climbing, jumping and running. Focusing on just one aspect isn't enough. Although, I don't do all of those in one program, but put some of the stuff in and after a few weeks try something different.
I'm glad that you liked it, Inger! I wouldn't do the jumps every time, because they are more of a work out. You can hurt your legs in the long run doing too much of those.
No, I didn't by the colostrum, haha. Honestly, I'm taking a break from dairy, because I have seemed to develop a sensitivity to it.