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distribution of gastrointestinal symptoms
| symptoms | total | during running | after running | |||
|---|---|---|---|---|---|---|
| n | % | n | % | n | % | |
| nausea | 0 | 0 | 0 | 0 | 0 | 0 |
| eructation | 2 | 29 | 1 | 14 | 1 | 14 |
| heartburn | 2 | 29 | 1 | 14 | 1 | 14 |
| angina pectoris | 0 | 0 | 0 | 0 | 0 | 0 |
| vomiting | 1 | 14 | 0 | 0 | 1 | 14 |
| abdominal cramping | 3 | 43 | 3 | 43 | 3 | 43 |
| flatulence | 6 | 86 | 3 | 43 | 3 | 43 |
| diarrhea | 5 | 71 | 3 | 43 | 5 | 71 |
| stitch | 1 | 14 | 0 | 0 | 1 | 14 |
