| Term | Definition |
| Trendelenburg/later trunk bend (stance phase) | weak hip abductors, hip pain, prosthesis to short, Hip abductors, medial wall to high in socket, lateral wall to low |
| Forward trunk lean (stance phase) | Hip flexion contracture, prosthesis to short, unstable knee |
| Excessive lumbar loridosis during stance | weak hip extensors, tight hip flexors, weak abs, pain in the ischial WB area |
| terminal swing impact-quick kick in swing | fear of knee buckling, insufficient knee friction, excessive tension in ext. aid-pulls knee into extension |
| Swing phase whip (occurs at toe off) | misalignment in prosthesis, socket is rotated -in relation to heel |
| Foot rotation at heel strike | misalignment, heel cushion to hard |
| Foot slap | Heel cushion to soft |
| uneven step length | pain, poor balance or hip instability, hip flexion contracture |