Male Strength Standards (lb)
| Strength Level | Back Extension | Roman Chair Side Bend |
|---|---|---|
| Beginner | -63 lb | -28 lb |
| Novice | +30 lb | +49 lb |
| Intermediate | +156 lb | +149 lb |
| Advanced | +313 lb | +267 lb |
| Elite | +492 lb | +398 lb |
Female Strength Standards (lb)
| Strength Level | Back Extension | Roman Chair Side Bend |
|---|---|---|
| Beginner | -35 lb | -38 lb |
| Novice | +22 lb | +20 lb |
| Intermediate | +94 lb | +95 lb |
| Advanced | +180 lb | +185 lb |
| Elite | +273 lb | +284 lb |