Male Strength Standards (kg)
| Strength Level | Nordic Hamstring Curl | Back Extension |
|---|---|---|
| Beginner | -33 kg | -28 kg |
| Novice | -7 kg | +13 kg |
| Intermediate | +26 kg | +71 kg |
| Advanced | +66 kg | +142 kg |
| Elite | +110 kg | +223 kg |
Female Strength Standards (kg)
| Strength Level | Nordic Hamstring Curl | Back Extension |
|---|---|---|
| Beginner | -20 kg | -16 kg |
| Novice | +3 kg | +10 kg |
| Intermediate | +31 kg | +43 kg |
| Advanced | +65 kg | +82 kg |
| Elite | +101 kg | +124 kg |