Male Strength Standards (lb)
| Strength Level | Seated Leg Curl | Machine Back Extension |
|---|---|---|
| Beginner | 64 lb | 67 lb |
| Novice | 111 lb | 147 lb |
| Intermediate | 174 lb | 264 lb |
| Advanced | 252 lb | 415 lb |
| Elite | 338 lb | 591 lb |
Female Strength Standards (lb)
| Strength Level | Seated Leg Curl | Machine Back Extension |
|---|---|---|
| Beginner | 35 lb | 28 lb |
| Novice | 64 lb | 54 lb |
| Intermediate | 105 lb | 90 lb |
| Advanced | 155 lb | 135 lb |
| Elite | 212 lb | 187 lb |