| DPA | During Physical Activity |
| E. coli | Escherichia coli |
| FITC | Fluorescein isothiocyanate |
| HPA | Hypothalamic–pituitary–adrenal |
| HPG | Hypothalamic–pituitary–gonadal |
| HRP | Horseradish peroxidase |
| IL | Interleukin |
| IS | Immune system |
| SAM | Sympathetic–adrenal–medullary |
| UIB | Biomedical Research Unit |
| WPA | Without Physical Activity |