LM warmup, 1.73 miles in 16:47, 9:43/mi. 1/4 mile into the run the left hip issues began again (loss of coordination, leg 'seizing'). Made it 1/2 mile then turned around, jumped in the car, and headed for the chiro. Adjusted neck, jog (worse, hamstring & adductor kept tensing at the wrong time), adjusted sacrum (better, but now the quad felt a bit weak), then adjusted hip. He theorized that I might have a deep groin pull and recommended some isometric exercises and waiting to run until tomorrow. Still very frustrating. Discovered a thread on letsrun.com "Loss of coordination in leg" that actually (finally) describes my symptoms. There's a bunch of different stories there and I haven't read thru all of them (40+ pages) but at least I'm not completely alone. I also see I'm not the only one who experiences symptom differences on different surfaces (asphalt/concrete bad, trails good). I'm still holding out hope I can get to a runnable state for Saturday. | 