Male Strength Standards (kg)
| Strength Level | Back Extension | Roman Chair Side Bend |
|---|---|---|
| Beginner | -28 kg | -13 kg |
| Novice | +13 kg | +22 kg |
| Intermediate | +71 kg | +67 kg |
| Advanced | +142 kg | +121 kg |
| Elite | +223 kg | +180 kg |
Female Strength Standards (kg)
| Strength Level | Back Extension | Roman Chair Side Bend |
|---|---|---|
| Beginner | -16 kg | -17 kg |
| Novice | +10 kg | +9 kg |
| Intermediate | +43 kg | +43 kg |
| Advanced | +82 kg | +84 kg |
| Elite | +124 kg | +129 kg |