Standing Leg Curl vs Machine Back Extension
Measured in lb
Male Strength Standards (lb)
| Strength Level | Standing Leg Curl | Machine Back Extension |
|---|---|---|
| Beginner | 13 lb | 67 lb |
| Novice | 50 lb | 147 lb |
| Intermediate | 113 lb | 264 lb |
| Advanced | 203 lb | 415 lb |
| Elite | 313 lb | 591 lb |
Female Strength Standards (lb)
| Strength Level | Standing Leg Curl | Machine Back Extension |
|---|---|---|
| Beginner | 31 lb | 28 lb |
| Novice | 57 lb | 54 lb |
| Intermediate | 93 lb | 90 lb |
| Advanced | 137 lb | 135 lb |
| Elite | 188 lb | 187 lb |