After the Newton Challenge, I did my regular training runs on the following Tuesday (easy run) and Thursday (tempo run). After the morning tempo run, my lower back started to ache badly when I back in office. So I need to break on Friday and cut short the weekend long run.
Looking back on the source of the lower back’s ache, I think it’s caused by the last few kilometers speeding in Newton Challenge. Even thought I throated the speed from starting of the race, the body fatigue over 25km still very significant, hence I didn’t focus on my running form when I pushed at the final leg. I forgot the correct pose to run fast, which can be summed up in the Chi Running picture. I ran in bad posture and lots of stress cumulated at my lower back area. It just exploded after my tempo run. For workouts in this week, I kept checking on the gait to make sure I ran with up right body, and keep the up & down body motions to minimum. So far, after 2 easy runs, 3 speed works and a 30km long run, the lower back seem recovered and not giving another problem.
Talking about relation between postures and running injuries, we often refer to running gait only. For us who work in office, the sitting posture is actually far more important then the running gait. You sit in your work desk for 8 hours x 5 days a week, and run 50km in 7 hours a week. The running potion is less then 20% from the 40 hours of sitting! Your sitting posture will post some serious effect to your muscles groups & even to the spinal. I am not a doctor so I will not able to explain much, if you are interest to know more, please refer to here.
Few things you can do on your sitting posture to reduce the impact and risk,
1. Stop crossing your legs.
2. Keep both of your feet flat on the ground.
3. Don’t lean forward.
Some training that can improve your sitting posture and reduce the pain (if you already suffering some pain on lower back),
1. Yoga Butterfly stretching.
2. Superman pose stretching.
3. Spinal twist stretching.
4. Lower back muscles strengthening exercise – V-Up.