Oddgs wrote:
Or more precise: did you have a weird foot strike pattern of some sort, and/ or something that made your foot go unevenly in mid-air.
Practice, practice, and more practice.
A few pointers:
Run in adequate shoes. Look for a heal to toe drop that is less than 6mm and avoid high cushioning shoes. You will be surprised how many shoes do not meet this requirement.
Place your back against a wall and run in place. Do this for about 5-10 min a day. It will be impossible for you to heel strike while doing this. This will help with your leg stance, foot strength, and neuromuscular control.
A variation on the above. While running in place start moving forward focusing on that forefoot strike. This should look like shuffle (maybe a meter per second) with very short strides. To this shuffle for every 5th stride add an explosive stride in which you bring that knee up high and fast. The goal here is to not have that explosive stride mess with your stride rate. It takes practice.
Jump rope running.
At first, running with a metronome on a treadmill. This helped me a lot in relearning pacing. Before my "stride intervention" I could nail any prescribed pace. After the intervention, I had two modes 7'30"s and 4'50"s. The treadmill helped a lot with that.
Slowly what felt like a really awkward motion with lots of bouncing became more fluid. Eventually, all my movement was horizontal and no hip drop. The intervention worked.