Male Strength Standards (kg)
| Strength Level | Back Extension | Russian Twist |
|---|---|---|
| Beginner | -28 kg | -16 kg |
| Novice | +13 kg | +37 kg |
| Intermediate | +71 kg | +109 kg |
| Advanced | +142 kg | +200 kg |
| Elite | +223 kg | +304 kg |
Female Strength Standards (kg)
| Strength Level | Back Extension | Russian Twist |
|---|---|---|
| Beginner | -16 kg | -14 kg |
| Novice | +10 kg | +22 kg |
| Intermediate | +43 kg | +70 kg |
| Advanced | +82 kg | +129 kg |
| Elite | +124 kg | +196 kg |