Male Strength Standards (lb)
| Strength Level | Nordic Hamstring Curl | Back Extension |
|---|---|---|
| Beginner | -43 lb | +13 lb |
| Novice | -2 lb | +80 lb |
| Intermediate | +48 lb | +163 lb |
| Advanced | +105 lb | +261 lb |
| Elite | +167 lb | +367 lb |
Female Strength Standards (lb)
| Strength Level | Nordic Hamstring Curl | Back Extension |
|---|---|---|
| Beginner | -29 lb | +16 lb |
| Novice | +11 lb | +58 lb |
| Intermediate | +60 lb | +109 lb |
| Advanced | +119 lb | +167 lb |
| Elite | +183 lb | +228 lb |