Male Strength Standards (lb)
| Strength Level | Nordic Hamstring Curl | Back Extension |
|---|---|---|
| Beginner | -73 lb | -63 lb |
| Novice | -16 lb | +30 lb |
| Intermediate | +58 lb | +156 lb |
| Advanced | +146 lb | +313 lb |
| Elite | +243 lb | +492 lb |
Female Strength Standards (lb)
| Strength Level | Nordic Hamstring Curl | Back Extension |
|---|---|---|
| Beginner | -43 lb | -35 lb |
| Novice | +6 lb | +22 lb |
| Intermediate | +69 lb | +94 lb |
| Advanced | +143 lb | +180 lb |
| Elite | +224 lb | +273 lb |