Male Strength Standards (lb)
| Strength Level | Back Extension | Superman |
|---|---|---|
| Beginner | -63 lb | -49 lb |
| Novice | +30 lb | +37 lb |
| Intermediate | +156 lb | +153 lb |
| Advanced | +313 lb | +294 lb |
| Elite | +492 lb | +453 lb |
Female Strength Standards (lb)
| Strength Level | Back Extension | Superman |
|---|---|---|
| Beginner | -35 lb | -50 lb |
| Novice | +22 lb | +16 lb |
| Intermediate | +94 lb | +103 lb |
| Advanced | +180 lb | +211 lb |
| Elite | +273 lb | +332 lb |