Jo Pavey is determined to put her post-race collapse at the Great North Run behind her with a convincing run at the Great South Run on Sunday.
Pavey had to be assisted after her half-marathon debut
Pavey, 33, battled dizziness on her half-marathon debut but wants to prove she can step up to distance road running in the 10-mile Portsmouth race.
She said: "After what happened in the Great North Run it was always my plan to get in another long distance race.
"I just want to get out there and show I can produce a good 10-miler."
Pavey, the Commonwealth 5,000m silver medallist, is considering following in Paula Radcliffe's footsteps and refocusing her career on the road rather than the track.
Instead of celebrating at the finish, I ended up in the medical tent for an hour
However, her half-marathon debut on Tyneside on 1 October did not go according to plan. Pavey finished a creditable fourth but fell to the floor after stumbling across the finish line.
The Exeter runner was diagnosed with low blood-sugar levels but believes she now know how to handle the problem.
"I had the problem a few years ago at the 2002 Commonwealth Games and never thought there would be a re-occurrence," Pavey explained.
"But that's what happened and just as I was making my final effort with 800m to go, everything went blank and I thought I wasn't going to finish.
"I was enjoying until then what is such a great event, but instead of celebrating at the finish, I ended up in the medical tent for an hour.
"However I have maintained my fitness and yesterday did a 17 miles training run. Portsmouth fits in perfectly with doing that and my preparations have gone very well."
Pavey will be contesting her third major event this month following the Great North Run and last weekend's Nike Run London 10km, where she won the women's race.
Jon Brown carries British hopes in the race where he goes up against Spain's European 10,000m silver medallist Jose Manuel Martinez and Mark Carroll of Ireland.