this is an old thread but hoping someone reads my new post:
Training for London Marathon 2010 (3 wks to go); did last long training run yesterday - 22 miles; think i was fairly well hydrated, had 4 weetabix at 8.30am; started run 10.30am; mild day with cloud some sun so not too hot; took it slow - 6.20/km first 10 miles - alot lower than 5.30 marathon pace; & average HR 141 - normally is alot higher;, felt good after 10 miles; drinking PSP energy drink and took 2 gels; at 15 miles feeling tired and slightly light headed, and found last 6 miles very very tough - had to walk/run/walk last few miles; vomited after and felt sick for 3 hrs after = WHY?
i wasnt de-hydrated, it wasnt too hot, i took plenty carbs, i ran a slow pace; so was it because:
a) i ate a thai curry nite before?
b) had a big breakfast? (i do find it makes me feel sick if i eat too close to exercise)
c) my energy drink does not agree with me? (it is alot sweeter than , eg. powerade)
d) was i still tired from my 18 miler 7 days earlier?
e) were my glycogen stores really depleted?
f) was it the snickers bar and dairy milk i bought and ate at mile 16? (i did this to try and
give me some carbs and i did feel a bit better but only temporarily)
g) all of the above or something else?
i have done alot of training for the VLM, including a few long runs in past 4 months (16, 16, 17, 18, 19, 20) so am used to the distance; i felt sick after the 18 miler too, though the run itself was great (felt v strong right to end - av. pace 5.50, last 3 miles at 5.20 pace)
anyone help?
chris taylor