| GEE | Generalized estimating equation |
| AE | Exercise and ad libitum feeding |
| PE | Exercise and pair feeding |
| DCR | Sedentary and 20% dietary calorie restriction |
| TG | Triacylglycerol |
| DG | Diacylglycerol |
| LASSO | Least absolute shrinkage and selection operator |
| PGEE | Penalized generalized estimating equation |
| PQIF | Penalized quadratic inference function |
| MCP | Minimax concave penalty |
| SCAD | Smoothly clipped absolute deviation |
| SNP | Single nucleotide polymorphisms |
| CNV | Copy number variations |
| QIF | Quadratic inference function |