What the title says… I really can’t seem to sprint right now. I went out on a nice warm afternoon yesterday to do some sprint intervals, and I just couldn’t do them. I did eventually feel my left hamstring giving up (and I will have to watch that over the next week) but the main problem was that even before this, I just felt like I couldn’t do it.
I had been intending to do 3 pairs of 1000m + 400m, with a short break in the middle and a longer one between each pair, but I guess it all started to go wrong when I felt like I couldn’t even be bothered to jog the full 1.3 kilometres to the stretch of road I had planned to use (because it is relatively flat, has km markers and has relatively little traffic). For some reason, despite all my knowledge and preparation, I decided the long slightly uphill stretch of road near me was good enough. But as soon as I started, I felt slighly sick. Instead of running a 1000m leg, I stopped at 400m. After a quick break, I ran half way back for a 200m, and then jogged slowly to the start again. I then repeated, but I knew in the middle of the second 200m that my leg wasn’t going to take it. I still did one more 400m before quitting for a pathetic total of 1600m (approximately a mile), plus the warm-up, cool-down and in-betweens.
I had a vague idea of the times I was running (somewhere under 1:30 for 400m) but I wasn’t really paying attention. And that was the problem. I know my distances and what it feels like to running at particular paces on the section of road I had been planning to use, almost like a track. But not on this section. So I ran much faster than I should have been at first. Looking at my intervals, I ran the first 400m in 1:22 (3:23/km or 5:28/mile) pace, and kept that up for the 200m and was only slightly slower on the next 400m at 3:27/km (5:23/mile). The second 200m was still up there and only and final and unecessary extra 400m brought the average down to just under 3:30/km (5:38/mile).
Last month, I did a series of nine 400m intervals in an average of 1:31, which is over 10 seconds slower /km pace. So I was definitely running too fast today, certainly I wasn’t going to get to 1000m at that pace three or more times. I have to work on this because it’s dangerous as it’s liable to get me injured.