Male Strength Standards (lb)
| Strength Level | Leg Extension | Machine Back Extension |
|---|---|---|
| Beginner | 78 lb | 67 lb |
| Novice | 135 lb | 147 lb |
| Intermediate | 212 lb | 264 lb |
| Advanced | 306 lb | 415 lb |
| Elite | 411 lb | 591 lb |
Female Strength Standards (lb)
| Strength Level | Leg Extension | Machine Back Extension |
|---|---|---|
| Beginner | 39 lb | 28 lb |
| Novice | 76 lb | 54 lb |
| Intermediate | 128 lb | 90 lb |
| Advanced | 193 lb | 135 lb |
| Elite | 268 lb | 187 lb |