| FAULT | CORRECTION |
|---|---|
| Too much knee bend | 1. Revise basic drills. 2. Concentrate on a small flip of the feet. |
| Lack of undulation in the body | 1. Practice dolphin kick under water. 2. Practice dolphin kick under water arms extended above head. 3. Start the action by moving the head. |
| Only one kick per stroke | 1. Kick and glide when the hands enter the water. 2. Reduce the glide later. |
| Straight arm pull | 1. Learn 'keyhole' pull. 2. Scull with hands (out, in, out). |
| Arms fail to recover clear of water | 1. Practice over short distances to avoid fatigue. 2. Breathe by poking the chin forward close to the surface. 3. Recover the arms wide (thumbs down). |
| Timing | 1. De-emphasize kick. focus on 'head enters water before hands, head lifts before hands exit water'. |