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