Male Strength Standards (kg)
| Strength Level | Machine Back Extension | Leg Extension |
|---|---|---|
| Beginner | 30 kg | 35 kg |
| Novice | 67 kg | 61 kg |
| Intermediate | 120 kg | 96 kg |
| Advanced | 188 kg | 139 kg |
| Elite | 268 kg | 186 kg |
Female Strength Standards (kg)
| Strength Level | Machine Back Extension | Leg Extension |
|---|---|---|
| Beginner | 13 kg | 18 kg |
| Novice | 24 kg | 34 kg |
| Intermediate | 41 kg | 58 kg |
| Advanced | 61 kg | 88 kg |
| Elite | 85 kg | 122 kg |